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• Migrate from MySQL to PostgreSQL on Linux (Kubuntu)

  - by Dave Jarvis

  A long time ago in a galaxy far, far away... Trying to migrate a database from MySQL to PostgreSQL. All the documentation I have read covers, in great detail, how to migrate the structure. I have found very little documentation on migrating the data. The schema has 13 tables (which have been migrated successfully) and 9 GB of data. MySQL version: 5.1.x PostgreSQL version: 8.4.x I want to use the R programming language to analyze the data using SQL select statements; PostgreSQL has PL/R, but MySQL has nothing (as far as I can tell). A New Hope Create the database location (/var has insufficient space; also dislike having the PostgreSQL version number everywhere -- upgrading would break scripts!): sudo mkdir -p /home/postgres/main sudo cp -Rp /var/lib/postgresql/8.4/main /home/postgres sudo chown -R postgres.postgres /home/postgres sudo chmod -R 700 /home/postgres sudo usermod -d /home/postgres/ postgres All good to here. Next, restart the server and configure the database using these installation instructions: sudo apt-get install postgresql pgadmin3 sudo /etc/init.d/postgresql-8.4 stop sudo vi /etc/postgresql/8.4/main/postgresql.conf Change data_directory to /home/postgres/main sudo /etc/init.d/postgresql-8.4 start sudo -u postgres psql postgres \password postgres sudo -u postgres createdb climate pgadmin3 Use pgadmin3 to configure the database and create a schema. The episode continues in a remote shell known as bash, with both databases running, and the installation of a set of tools with a rather unusual logo: SQL Fairy. perl Makefile.PL sudo make install sudo apt-get install perl-doc (strangely, it is not called perldoc) perldoc SQL::Translator::Manual Extract a PostgreSQL-friendly DDL and all the MySQL data: sqlt -f DBI --dsn dbi:mysql:climate --db-user user --db-password password -t PostgreSQL > climate-pg-ddl.sql mysqldump --skip-add-locks --complete-insert --no-create-db --no-create-info --quick --result-file="climate-my.sql" --databases climate --skip-comments -u root -p The Database Strikes Back Recreate the structure in PostgreSQL as follows: pgadmin3 (switch to it) Click the Execute arbitrary SQL queries icon Open climate-pg-ddl.sql Search for TABLE " replace with TABLE climate." (insert the schema name climate) Search for on " replace with on climate." (insert the schema name climate) Press F5 to execute This results in: Query returned successfully with no result in 122 ms. Replies of the Jedi At this point I am stumped. Where do I go from here (what are the steps) to convert climate-my.sql to climate-pg.sql so that they can be executed against PostgreSQL? How to I make sure the indexes are copied over correctly (to maintain referential integrity; I don't have constraints at the moment to ease the transition)? How do I ensure that adding new rows in PostgreSQL will start enumerating from the index of the last row inserted (and not conflict with an existing primary key from the sequence)? How do you ensure the schema name comes through when transforming the data from MySQL to PostgreSQL inserts? Resources A fair bit of information was needed to get this far: https://help.ubuntu.com/community/PostgreSQL http://articles.sitepoint.com/article/site-mysql-postgresql-1 http://wiki.postgresql.org/wiki/Converting_from_other_Databases_to_PostgreSQL#MySQL http://pgfoundry.org/frs/shownotes.php?release_id=810 http://sqlfairy.sourceforge.net/ Thank you!

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• Jboss logging issue

  - by balaji

  Our application is deployed on JBoss As 4.0x and we face some issues with JBoss logging. Whenever the server is restarted, JBoss stops logging, and there is no update in server.log. After that it is not updating the log file. Then we do touch cmd on log4j.xml, so that it creates the log files again. Please help me in fixing the issue we cant do touch everytime. We face this issue in both the nodes. I could not figure where the problem is? If any other issues, we can check the log files. If log itself is not getting updated/logged, how can we move further in analyzing the issues without the recent/updated logs? Contents of log4j.xml, copied from the comments below: <appender name="FILE" class="org.jboss.logging.appender.DailyRollingFileAppender"> <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/> <param name="File" value="${jboss.server.log.dir}/server.log"/> <param name="Append" value="false"/> <param name="DatePattern" value="'.'yyyy-MM-dd"/> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/> </layout> </appender> <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender"> <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/> <param name="Target" value="System.out"/> <param name="Threshold" value="INFO"/> <layout class="org.apache.log4j.PatternLayout"> <!-- The default pattern: Date Priority [Category] Message\n --> <param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%c{1}] %m%n"/> </layout> </appender> <root> <appender-ref ref="CONSOLE"/> <appender-ref ref="FILE"/> </root> <category name="org.apache"> <priority value="INFO"/> </category> <category name="org.apache.axis"> <priority value="INFO"/> </category> <category name="org.jgroups"> <priority value="WARN"/> </category> <category name="jacorb"> <priority value="WARN"/> </category> <category name="org.jboss.management"> <priority value="INFO"/> </category>

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• Boost tuple + transform

  - by JH

  Is it possible to do the following. Say my boost tuple has <String, int> I would like to use std::transform + mem_fun to insert only the String element in a corresponding vector. Is it possible or are we required to use a loop and push_back(get<0) Ie the following doesn't like to compile... (unknown types...) result.resize(storage.size()) std::transform(storage.begin(), storage.end(), result.begin(), std::mem_fun(&boost::get<0>)); Here is an example (trying one of the comments): #include <boost/tuple/tuple.hpp> #include <vector> #include <string> #include <algorithm> int main(int argc, char**argv) { std::vector< boost::tuple<std::string, int> > storage; std::vector< std::string> result; result.resize(storage.size()); std::transform(storage.begin(), storage.end(), result.begin(), &boost::get<0, boost::tuple<std::string, int> >); return 0; } Output: g++ test.cpp /usr/include/boost/tuple/detail/tuple_basic.hpp: In instantiation of `boost::tuples::cons<boost::tuples::tuple<std::string, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, TT>': /usr/include/boost/tuple/detail/tuple_basic.hpp:151: instantiated from `boost::tuples::element<0, boost::tuples::cons<boost::tuples::tuple<std::string, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, TT> >' test.cpp:14: instantiated from here /usr/include/boost/tuple/detail/tuple_basic.hpp:329: error: `boost::tuples::cons<HT, TT>::tail' has incomplete type /usr/include/boost/tuple/detail/tuple_basic.hpp:329: error: invalid use of template type parameter test.cpp: In function `int main(int, char**)': test.cpp:14: error: no matching function for call to `transform(__gnu_cxx::__normal_iterator<boost::tuples::tuple<std::string, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>*, std::vector<boost::tuples::tuple<std::string, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, std::allocator<boost::tuples::tuple<std::string, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > > >, __gnu_cxx::__normal_iterator<boost::tuples::tuple<std::string, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>*, std::vector<boost::tuples::tuple<std::string, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, std::allocator<boost::tuples::tuple<std::string, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > > >, __gnu_cxx::__normal_iterator<std::string*, std::vector<std::string, std::allocator<std::string> > >, <unresolved overloaded function type>)'

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• How to solve "403 Forbidden" on CentOS6 with SELinux Disabled?

  - by André

  I have a machine on Linode that is driving me crazy. Linode does not have SELinux on CentOS6... I'm trying to configure to put my website in "/home/websites/public_html/mysite.com/public" As I don´t have SELinux enable, how can I avoid the "403 Forbidden" that I get when trying to access the webpage? Sorry for my english. Best Regards, Update1, ERROR_LOG [Mon Oct 17 14:04:16 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:08:07 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:10:25 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:10:41 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:32:35 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:34:45 2011] [error] [client 58.218.199.227] (13)Permission denied: access to /proxy-1.php denied [Mon Oct 17 15:32:25 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 15:37:26 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 15:37:43 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 15:38:32 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 15:42:56 2011] [crit] [client 127.0.0.1] (13)Permission denied: /home/websites/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable [Mon Oct 17 15:43:12 2011] [crit] [client 127.0.0.1] (13)Permission denied: /home/websites/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable [Mon Oct 17 15:45:34 2011] [crit] [client 127.0.0.1] (13)Permission denied: /home/websites/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable [Mon Oct 17 15:51:25 2011] [crit] [client 127.0.0.1] (13)Permission denied: /home/websites/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable Upadate2, /home/websites directory drwx------ 3 websites websites 4096 Oct 17 14:52 . drwxr-xr-x. 3 root root 4096 Oct 17 13:42 .. -rw------- 1 websites websites 372 Oct 17 14:52 .bash_history -rw-r--r-- 1 websites websites 18 May 30 11:46 .bash_logout -rw-r--r-- 1 websites websites 176 May 30 11:46 .bash_profile -rw-r--r-- 1 websites websites 124 May 30 11:46 .bashrc drwxrwxr-x 3 websites apache 4096 Oct 17 13:45 public_html Update3, httpd.conf ### Section 1: Global Environment ServerTokens OS ServerRoot "/etc/httpd" PidFile run/httpd.pid Timeout 60 KeepAlive Off MaxKeepAliveRequests 100 KeepAliveTimeout 15 <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 20 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 </IfModule> <IfModule worker.c> StartServers 4 MaxClients 300 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> #Listen 12.34.56.78:80 Listen 80 LoadModule auth_basic_module modules/mod_auth_basic.so LoadModule auth_digest_module modules/mod_auth_digest.so LoadModule authn_file_module modules/mod_authn_file.so LoadModule authn_alias_module modules/mod_authn_alias.so LoadModule authn_anon_module modules/mod_authn_anon.so LoadModule authn_dbm_module modules/mod_authn_dbm.so LoadModule authn_default_module modules/mod_authn_default.so LoadModule authz_host_module modules/mod_authz_host.so LoadModule authz_user_module modules/mod_authz_user.so LoadModule authz_owner_module modules/mod_authz_owner.so LoadModule authz_groupfile_module modules/mod_authz_groupfile.so LoadModule authz_dbm_module modules/mod_authz_dbm.so LoadModule authz_default_module modules/mod_authz_default.so LoadModule ldap_module modules/mod_ldap.so LoadModule authnz_ldap_module modules/mod_authnz_ldap.so LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule logio_module modules/mod_logio.so LoadModule env_module modules/mod_env.so LoadModule ext_filter_module modules/mod_ext_filter.so LoadModule mime_magic_module modules/mod_mime_magic.so LoadModule expires_module modules/mod_expires.so LoadModule deflate_module modules/mod_deflate.so LoadModule headers_module modules/mod_headers.so LoadModule usertrack_module modules/mod_usertrack.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.so LoadModule dav_module modules/mod_dav.so LoadModule status_module modules/mod_status.so LoadModule autoindex_module modules/mod_autoindex.so LoadModule info_module modules/mod_info.so LoadModule dav_fs_module modules/mod_dav_fs.so LoadModule vhost_alias_module modules/mod_vhost_alias.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule dir_module modules/mod_dir.so LoadModule actions_module modules/mod_actions.so LoadModule speling_module modules/mod_speling.so LoadModule userdir_module modules/mod_userdir.so LoadModule alias_module modules/mod_alias.so LoadModule substitute_module modules/mod_substitute.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_balancer_module modules/mod_proxy_balancer.so LoadModule proxy_ftp_module modules/mod_proxy_ftp.so LoadModule proxy_http_module modules/mod_proxy_http.so LoadModule proxy_ajp_module modules/mod_proxy_ajp.so LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule cache_module modules/mod_cache.so LoadModule suexec_module modules/mod_suexec.so LoadModule disk_cache_module modules/mod_disk_cache.so LoadModule cgi_module modules/mod_cgi.so LoadModule version_module modules/mod_version.so Include conf.d/*.conf #ExtendedStatus On User apache Group apache ServerAdmin root@localhost #ServerName www.example.com:80 UseCanonicalName Off DocumentRoot "/var/www/html" # # Each directory to which Apache has access can be configured with respect # to which services and features are allowed and/or disabled in that # directory (and its subdirectories). # # First, we configure the "default" to be a very restrictive set of # features. # <Directory /> Options FollowSymLinks AllowOverride None </Directory> # # Note that from this point forward you must specifically allow # particular features to be enabled - so if something's not working as # you might expect, make sure that you have specifically enabled it # below. # # # This should be changed to whatever you set DocumentRoot to. # <Directory "/home/websites/public_html"> # # Possible values for the Options directive are "None", "All", # or any combination of: # Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews # # Note that "MultiViews" must be named *explicitly* --- "Options All" # doesn't give it to you. # # The Options directive is both complicated and important. Please see # http://httpd.apache.org/docs/2.2/mod/core.html#options # for more information. # Options Indexes FollowSymLinks # # AllowOverride controls what directives may be placed in .htaccess files. # It can be "All", "None", or any combination of the keywords: # Options FileInfo AuthConfig Limit # AllowOverride None # # Controls who can get stuff from this server. # Order allow,deny Allow from all </Directory> # # UserDir: The name of the directory that is appended onto a user's home # directory if a ~user request is received. # # The path to the end user account 'public_html' directory must be # accessible to the webserver userid. This usually means that ~userid # must have permissions of 711, ~userid/public_html must have permissions # of 755, and documents contained therein must be world-readable. # Otherwise, the client will only receive a "403 Forbidden" message. # # See also: http://httpd.apache.org/docs/misc/FAQ.html#forbidden # <IfModule mod_userdir.c> # # UserDir is disabled by default since it can confirm the presence # of a username on the system (depending on home directory # permissions). # UserDir disabled # # To enable requests to /~user/ to serve the user's public_html # directory, remove the "UserDir disabled" line above, and uncomment # the following line instead: # #UserDir public_html </IfModule> # # Control access to UserDir directories. The following is an example # for a site where these directories are restricted to read-only. # #<Directory /home/*/public_html> # AllowOverride FileInfo AuthConfig Limit # Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec # <Limit GET POST OPTIONS> # Order allow,deny # Allow from all # </Limit> # <LimitExcept GET POST OPTIONS> # Order deny,allow # Deny from all # </LimitExcept> #</Directory> # # DirectoryIndex: sets the file that Apache will serve if a directory # is requested. # # The index.html.var file (a type-map) is used to deliver content- # negotiated documents. The MultiViews Option can be used for the # same purpose, but it is much slower. # DirectoryIndex index.html index.html.var # # AccessFileName: The name of the file to look for in each directory # for additional configuration directives. See also the AllowOverride # directive. # AccessFileName .htaccess # # The following lines prevent .htaccess and .htpasswd files from being # viewed by Web clients. # <Files ~ "^\.ht"> Order allow,deny Deny from all Satisfy All </Files> # # TypesConfig describes where the mime.types file (or equivalent) is # to be found. # TypesConfig /etc/mime.types # # DefaultType is the default MIME type the server will use for a document # if it cannot otherwise determine one, such as from filename extensions. # If your server contains mostly text or HTML documents, "text/plain" is # a good value. If most of your content is binary, such as applications # or images, you may want to use "application/octet-stream" instead to # keep browsers from trying to display binary files as though they are # text. # DefaultType text/plain # # The mod_mime_magic module allows the server to use various hints from the # contents of the file itself to determine its type. The MIMEMagicFile # directive tells the module where the hint definitions are located. # <IfModule mod_mime_magic.c> # MIMEMagicFile /usr/share/magic.mime MIMEMagicFile conf/magic </IfModule> # # HostnameLookups: Log the names of clients or just their IP addresses # e.g., www.apache.org (on) or 204.62.129.132 (off). # The default is off because it'd be overall better for the net if people # had to knowingly turn this feature on, since enabling it means that # each client request will result in AT LEAST one lookup request to the # nameserver. # HostnameLookups Off #EnableMMAP off #EnableSendfile off # # ErrorLog: The location of the error log file. # If you do not specify an ErrorLog directive within a <VirtualHost> # container, error messages relating to that virtual host will be # logged here. If you *do* define an error logfile for a <VirtualHost> # container, that host's errors will be logged there and not here. # ErrorLog logs/error_log LogLevel warn # # The following directives define some format nicknames for use with # a CustomLog directive (see below). # LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %b" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent # "combinedio" includes actual counts of actual bytes received (%I) and sent (%O); this # requires the mod_logio module to be loaded. #LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio # # The location and format of the access logfile (Common Logfile Format). # If you do not define any access logfiles within a <VirtualHost> # container, they will be logged here. Contrariwise, if you *do* # define per-<VirtualHost> access logfiles, transactions will be # logged therein and *not* in this file. # #CustomLog logs/access_log common # # If you would like to have separate agent and referer logfiles, uncomment # the following directives. # #CustomLog logs/referer_log referer #CustomLog logs/agent_log agent # # For a single logfile with access, agent, and referer information # (Combined Logfile Format), use the following directive: # CustomLog logs/access_log combined ServerSignature On Alias /icons/ "/var/www/icons/" <Directory "/var/www/icons"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> # # WebDAV module configuration section. # <IfModule mod_dav_fs.c> # Location of the WebDAV lock database. DAVLockDB /var/lib/dav/lockdb </IfModule> # # ScriptAlias: This controls which directories contain server scripts. # ScriptAliases are essentially the same as Aliases, except that # documents in the realname directory are treated as applications and # run by the server when requested rather than as documents sent to the client. # The same rules about trailing "/" apply to ScriptAlias directives as to # Alias. # ScriptAlias /cgi-bin/ "/var/www/cgi-bin/" # # "/var/www/cgi-bin" should be changed to whatever your ScriptAliased # CGI directory exists, if you have that configured. # <Directory "/var/www/cgi-bin"> AllowOverride None Options None Order allow,deny Allow from all </Directory> IndexOptions FancyIndexing VersionSort NameWidth=* HTMLTable Charset=UTF-8 AddIconByEncoding (CMP,/icons/compressed.gif) x-compress x-gzip AddIconByType (TXT,/icons/text.gif) text/* AddIconByType (IMG,/icons/image2.gif) image/* AddIconByType (SND,/icons/sound2.gif) audio/* AddIconByType (VID,/icons/movie.gif) video/* AddIcon /icons/binary.gif .bin .exe AddIcon /icons/binhex.gif .hqx AddIcon /icons/tar.gif .tar AddIcon /icons/world2.gif .wrl .wrl.gz .vrml .vrm .iv AddIcon /icons/compressed.gif .Z .z .tgz .gz .zip AddIcon /icons/a.gif .ps .ai .eps AddIcon /icons/layout.gif .html .shtml .htm .pdf AddIcon /icons/text.gif .txt AddIcon /icons/c.gif .c AddIcon /icons/p.gif .pl .py AddIcon /icons/f.gif .for AddIcon /icons/dvi.gif .dvi AddIcon /icons/uuencoded.gif .uu AddIcon /icons/script.gif .conf .sh .shar .csh .ksh .tcl AddIcon /icons/tex.gif .tex AddIcon /icons/bomb.gif core AddIcon /icons/back.gif .. AddIcon /icons/hand.right.gif README AddIcon /icons/folder.gif ^^DIRECTORY^^ AddIcon /icons/blank.gif ^^BLANKICON^^ # # DefaultIcon is which icon to show for files which do not have an icon # explicitly set. # DefaultIcon /icons/unknown.gif # # AddDescription allows you to place a short description after a file in # server-generated indexes. These are only displayed for FancyIndexed # directories. # Format: AddDescription "description" filename # #AddDescription "GZIP compressed document" .gz #AddDescription "tar archive" .tar #AddDescription "GZIP compressed tar archive" .tgz # # ReadmeName is the name of the README file the server will look for by # default, and append to directory listings. # # HeaderName is the name of a file which should be prepended to # directory indexes. ReadmeName README.html HeaderName HEADER.html # # IndexIgnore is a set of filenames which directory indexing should ignore # and not include in the listing. Shell-style wildcarding is permitted. # IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t # # DefaultLanguage and AddLanguage allows you to specify the language of # a document. You can then use content negotiation to give a browser a # file in a language the user can understand. # # Specify a default language. This means that all data # going out without a specific language tag (see below) will # be marked with this one. You probably do NOT want to set # this unless you are sure it is correct for all cases. # # * It is generally better to not mark a page as # * being a certain language than marking it with the wrong # * language! # # DefaultLanguage nl # # Note 1: The suffix does not have to be the same as the language # keyword --- those with documents in Polish (whose net-standard # language code is pl) may wish to use "AddLanguage pl .po" to # avoid the ambiguity with the common suffix for perl scripts. # # Note 2: The example entries below illustrate that in some cases # the two character 'Language' abbreviation is not identical to # the two character 'Country' code for its country, # E.g. 'Danmark/dk' versus 'Danish/da'. # # Note 3: In the case of 'ltz' we violate the RFC by using a three char # specifier. There is 'work in progress' to fix this and get # the reference data for rfc1766 cleaned up. # # Catalan (ca) - Croatian (hr) - Czech (cs) - Danish (da) - Dutch (nl) # English (en) - Esperanto (eo) - Estonian (et) - French (fr) - German (de) # Greek-Modern (el) - Hebrew (he) - Italian (it) - Japanese (ja) # Korean (ko) - Luxembourgeois* (ltz) - Norwegian Nynorsk (nn) # Norwegian (no) - Polish (pl) - Portugese (pt) # Brazilian Portuguese (pt-BR) - Russian (ru) - Swedish (sv) # Simplified Chinese (zh-CN) - Spanish (es) - Traditional Chinese (zh-TW) # AddLanguage ca .ca AddLanguage cs .cz .cs AddLanguage da .dk AddLanguage de .de AddLanguage el .el AddLanguage en .en AddLanguage eo .eo AddLanguage es .es AddLanguage et .et AddLanguage fr .fr AddLanguage he .he AddLanguage hr .hr AddLanguage it .it AddLanguage ja .ja AddLanguage ko .ko AddLanguage ltz .ltz AddLanguage nl .nl AddLanguage nn .nn AddLanguage no .no AddLanguage pl .po AddLanguage pt .pt AddLanguage pt-BR .pt-br AddLanguage ru .ru AddLanguage sv .sv AddLanguage zh-CN .zh-cn AddLanguage zh-TW .zh-tw # # LanguagePriority allows you to give precedence to some languages # in case of a tie during content negotiation. # # Just list the languages in decreasing order of preference. We have # more or less alphabetized them here. You probably want to change this. # LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv zh-CN zh-TW # # ForceLanguagePriority allows you to serve a result page rather than # MULTIPLE CHOICES (Prefer) [in case of a tie] or NOT ACCEPTABLE (Fallback) # [in case no accepted languages matched the available variants] # ForceLanguagePriority Prefer Fallback # # Specify a default charset for all content served; this enables # interpretation of all content as UTF-8 by default. To use the # default browser choice (ISO-8859-1), or to allow the META tags # in HTML content to override this choice, comment out this # directive: # AddDefaultCharset UTF-8 # # AddType allows you to add to or override the MIME configuration # file mime.types for specific file types. # #AddType application/x-tar .tgz # # AddEncoding allows you to have certain browsers uncompress # information on the fly. Note: Not all browsers support this. # Despite the name similarity, the following Add* directives have nothing # to do with the FancyIndexing customization directives above. # #AddEncoding x-compress .Z #AddEncoding x-gzip .gz .tgz # If the AddEncoding directives above are commented-out, then you # probably should define those extensions to indicate media types: # AddType application/x-compress .Z AddType application/x-gzip .gz .tgz # # MIME-types for downloading Certificates and CRLs # AddType application/x-x509-ca-cert .crt AddType application/x-pkcs7-crl .crl # # AddHandler allows you to map certain file extensions to "handlers": # actions unrelated to filetype. These can be either built into the server # or added with the Action directive (see below) # # To use CGI scripts outside of ScriptAliased directories: # (You will also need to add "ExecCGI" to the "Options" directive.) # #AddHandler cgi-script .cgi # # For files that include their own HTTP headers: # #AddHandler send-as-is asis # # For type maps (negotiated resources): # (This is enabled by default to allow the Apache "It Worked" page # to be distributed in multiple languages.) # AddHandler type-map var # # Filters allow you to process content before it is sent to the client. # # To parse .shtml files for server-side includes (SSI): # (You will also need to add "Includes" to the "Options" directive.) # AddType text/html .shtml AddOutputFilter INCLUDES .shtml # # Action lets you define media types that will execute a script whenever # a matching file is called. This eliminates the need for repeated URL # pathnames for oft-used CGI file processors. # Format: Action media/type /cgi-script/location # Format: Action handler-name /cgi-script/location # # # Customizable error responses come in three flavors: # 1) plain text 2) local redirects 3) external redirects # # Some examples: #ErrorDocument 500 "The server made a boo boo." #ErrorDocument 404 /missing.html #ErrorDocument 404 "/cgi-bin/missing_handler.pl" #ErrorDocument 402 http://www.example.com/subscription_info.html # # # Putting this all together, we can internationalize error responses. # # We use Alias to redirect any /error/HTTP_<error>.html.var response to # our collection of by-error message multi-language collections. We use # includes to substitute the appropriate text. # # You can modify the messages' appearance without changing any of the # default HTTP_<error>.html.var files by adding the line: # # Alias /error/include/ "/your/include/path/" # # which allows you to create your own set of files by starting with the # /var/www/error/include/ files and # copying them to /your/include/path/, even on a per-VirtualHost basis. # Alias /error/ "/var/www/error/" <IfModule mod_negotiation.c> <IfModule mod_include.c> <Directory "/var/www/error"> AllowOverride None Options IncludesNoExec AddOutputFilter Includes html AddHandler type-map var Order allow,deny Allow from all LanguagePriority en es de fr ForceLanguagePriority Prefer Fallback </Directory> # ErrorDocument 400 /error/HTTP_BAD_REQUEST.html.var # ErrorDocument 401 /error/HTTP_UNAUTHORIZED.html.var # ErrorDocument 403 /error/HTTP_FORBIDDEN.html.var # ErrorDocument 404 /error/HTTP_NOT_FOUND.html.var # ErrorDocument 405 /error/HTTP_METHOD_NOT_ALLOWED.html.var # ErrorDocument 408 /error/HTTP_REQUEST_TIME_OUT.html.var # ErrorDocument 410 /error/HTTP_GONE.html.var # ErrorDocument 411 /error/HTTP_LENGTH_REQUIRED.html.var # ErrorDocument 412 /error/HTTP_PRECONDITION_FAILED.html.var # ErrorDocument 413 /error/HTTP_REQUEST_ENTITY_TOO_LARGE.html.var # ErrorDocument 414 /error/HTTP_REQUEST_URI_TOO_LARGE.html.var # ErrorDocument 415 /error/HTTP_UNSUPPORTED_MEDIA_TYPE.html.var # ErrorDocument 500 /error/HTTP_INTERNAL_SERVER_ERROR.html.var # ErrorDocument 501 /error/HTTP_NOT_IMPLEMENTED.html.var # ErrorDocument 502 /error/HTTP_BAD_GATEWAY.html.var # ErrorDocument 503 /error/HTTP_SERVICE_UNAVAILABLE.html.var # ErrorDocument 506 /error/HTTP_VARIANT_ALSO_VARIES.html.var </IfModule> </IfModule> # # The following directives modify normal HTTP response behavior to # handle known problems with browser implementations. # BrowserMatch "Mozilla/2" nokeepalive BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0 BrowserMatch "RealPlayer 4\.0" force-response-1.0 BrowserMatch "Java/1\.0" force-response-1.0 BrowserMatch "JDK/1\.0" force-response-1.0 # # The following directive disables redirects on non-GET requests for # a directory that does not include the trailing slash. This fixes a # problem with Microsoft WebFolders which does not appropriately handle # redirects for folders with DAV methods. # Same deal with Apple's DAV filesystem and Gnome VFS support for DAV. # BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully BrowserMatch "MS FrontPage" redirect-carefully BrowserMatch "^WebDrive" redirect-carefully BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully BrowserMatch "^gnome-vfs/1.0" redirect-carefully BrowserMatch "^XML Spy" redirect-carefully BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully # # Allow server status reports generated by mod_status, # with the URL of http://servername/server-status # Change the ".example.com" to match your domain to enable. # #<Location /server-status> # SetHandler server-status # Order deny,allow # Deny from all # Allow from .example.com #</Location> # # Allow remote server configuration reports, with the URL of # http://servername/server-info (requires that mod_info.c be loaded). # Change the ".example.com" to match your domain to enable. # #<Location /server-info> # SetHandler server-info # Order deny,allow # Deny from all # Allow from .example.com #</Location> # # Proxy Server directives. Uncomment the following lines to # enable the proxy server: # #<IfModule mod_proxy.c> #ProxyRequests On # #<Proxy *> # Order deny,allow # Deny from all # Allow from .example.com #</Proxy> # # Enable/disable the handling of HTTP/1.1 "Via:" headers. # ("Full" adds the server version; "Block" removes all outgoing Via: headers) # Set to one of: Off | On | Full | Block # #ProxyVia On # # To enable a cache of proxied content, uncomment the following lines. # See http://httpd.apache.org/docs/2.2/mod/mod_cache.html for more details. # #<IfModule mod_disk_cache.c> # CacheEnable disk / # CacheRoot "/var/cache/mod_proxy" #</IfModule> # #</IfModule> # End of proxy directives. ### Section 3: Virtual Hosts # # VirtualHost: If you want to maintain multiple domains/hostnames on your # machine you can setup VirtualHost containers for them. Most configurations # use only name-based virtual hosts so the server doesn't need to worry about # IP addresses. This is indicated by the asterisks in the directives below. # # Please see the documentation at # <URL:http://httpd.apache.org/docs/2.2/vhosts/> # for further details before you try to setup virtual hosts. # # You may use the command line option '-S' to verify your virtual host # configuration. # # Use name-based virtual hosting. # NameVirtualHost *:80 # # NOTE: NameVirtualHost cannot be used without a port specifier # (e.g. :80) if mod_ssl is being used, due to the nature of the # SSL protocol. # # # VirtualHost example: # Almost any Apache directive may go into a VirtualHost container. # The first VirtualHost section is used for requests without a known # server name. # #<VirtualHost *:80> # ServerAdmin [email protected] # DocumentRoot /www/docs/dummy-host.example.com # ServerName dummy-host.example.com # ErrorLog logs/dummy-host.example.com-error_log # CustomLog logs/dummy-host.example.com-access_log common #</VirtualHost> # domain: mysite.com # public: /home/websites/public_html/mysite.com/ <VirtualHost *:80> # Admin email, Server Name (domain name) and any aliases ServerAdmin [email protected] ServerName mysite.com ServerAlias www.mysite.com # Index file and Document Root (where the public files are located) DirectoryIndex index.html DocumentRoot /home/websites/public_html/mysite.com/public # Custom log file locations LogLevel warn ErrorLog /home/websites/public_html/mysite.com/log/error.log CustomLog /home/websites/public_html/mysite.com/log/access.log combined </VirtualHost>

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• How to reinstall OEM Windows 98 SE?

  - by Sammy

  I'm trying to install Windows 98 SE on an old PC and it's not going well. I run into this problem. Searching for Boot Record from Floppy..OK Starting Windows 98... TOSHIBA Enhanced-IDE CD/DVD-ROM Device Driver (ATAPI) Version 2.24 (C)Copyright Toshiba Corp. 1995-1999. All rights reserved. Device Name : TOSCD001 Number of units : 1 MSCDEX Version 2.25 Copyright (C) MIcrosoft Corp. 1986-1995. All rights reserved. Drive Z: = Driver TOSCD001 unit 0 TOSHIBA MACHINE Invalid drive specification Path not found - C:\TOOLS\CDROMDRV.SYS Invalid drive specification Invalid drive specification After that last line, it leaves me at a bitmap image displaying instructions to reboot with Ctrl+Alt+Del. It doesn't say why I have to reboot, and it doesn't state any error type, it just want's me to reboot for no apparent reason. After reboot, it just boots up from Floppy again and it cycles through the same thing all over again. The computer has been restored to original specification. Original system recovery "CD-ROM" discs are available and they are not scratched or anything, they are in very good condition. It's a set of 3 CDs, and the first disc labeled "1/3" should be the one holding the OEM version of Windows 98 SE. There is also a boot disk for Windows 98. I'm not sure what the other two discs are for. This computer came with three language support, so those could be holding different language versions or additional OEM discs. But I'm quite sure that the first disc holds the main operating system. BIOS has been set to optimized defaults. Boot priority is as follows; Floppy, IDE-0, CD-ROM. Under Standard CMOS settings, BIOS scans and autoconfigures both the hard drive and the CD/DVD drive. On POST it finds them both, and it finds the DOS bootdisk and starts preparing for installation, as you can see above. So what's this "invalid drive specification" about? Why isn't the installation starting? Updates Update 1 Booting from CD disc 2 In desperation I tried booting from the second CD. Boot order was; Floppy, CD-ROM, IDE-0. It boots normally from floppy disk, just like above, but then returns following. File not found - Z:\3LNGINST\TOOLS\PARTINFO.TXT I accidentally pressed some key on the keyboard, and before I knew it, the following screen showed up. Create Primary DOS Partition Current fixed disk drive: 1 Verifying drive integrity, 16% complete. After completion another screen showed up. Create Primary DOS Partition Current fixed disk drive: 1 Do you wish to use the maximum available size for a Primary DOS Partition and make the partition active (Y/N)?....................? [Y] Verifying drive integrity, 7% complete. I didn't choose Yes, it was set automatically. After completion the computer was automatically rebooted. Then I got a new screen. This is in Norwegian/Swedish/Finnish. Here's the message in Swedish. Hårddisken är inte klar för återställning av programvara. Installationsprogrammet måste skapa nya partitioner (C:, D:, ...). VARNING! ALLT INNEHÅLL PÅ HÅRDDISKEN KOMMER ATT RADERAS! Tryck på en tangent om du vill fortsätta (eller CTRL-C för att avbryta). Let me translate that. Hard drive is not ready for restoring the software. Setup program has to create new partitions (C:, D:, ...). WARNING! ALL CONTENTS ON THE HARD DRIVE WILL BE ERASED! Press any key to continue (or CTRL-C to cancel). I pressed Enter and it started formatting the hard drive. WARNING, ALL DATA ON NON-REMOVABLE DISK DRIVE c: WILL BE LOST! Proceed with Format (Y/N)?y Formatting 14,67.53M 1 percent completed. It automatically sets the "y" option and starts formatting. Rebooting with CD disc 1 After completing this operation it rebooted automatically. I inserted CD disc 1 and there was no issue with "invalid drive specification" anymore. Instead, a bitmap menu was displayed where it asked me to choose a language. And I thought I had it there for a while but it didn't work out. After choosing the language, another menu was displayed asking me to choose a type of recovery (restore pre-installed software OR restore hard drive partitions and pre-installed software). I opted for the second option. Then a data destruction warning showed up where I just pressed 1 to Continue. It did something and then just rebooted and the same formatting screen shows up as before. So something is not right. Am I doing it wrong? I seem to have come past the CD-ROM driver issue at least. But now I'm stuck with this problem... it seems to have something to do with the hard drive. Like... why is is it always trying to format it? Isn't it enough to format it once? By the way, it needs to be formatted as FAT32, right? Windows 98 doesn't support NTFS? I think FDISK should have taken care of this already. I know this is an old hard drive, but I connected to my main computer and it was able to read and write to it without a problem. It does have bad sectors though, but it's expected on an old hard drive like this. Any ideas?.. Update 2 I seem to be repeatedly getting stuck at the format screen where it asks to press any key to continue. So tried to cancel it this time with Ctrl+C. This leaves me at: A:\TOOLS> I can do DIR and CD and I tried to change to Z: drive. I tried running "setup" but there is no such thing. Z:\>setup Bad command or file name Update 3 Floppy structure Here's the file/folder structure of the floppy disk. A:\>dir /s Volume in drive A has no label. Volume Serial Number is 1700-1069 Directory of A:\ 1999-10-11 10:44 <DIR> BMP 1998-05-11 22:01 93 880 COMMAND.COM 1999-10-11 10:44 <DIR> factory 1999-10-11 10:44 <DIR> lang 1999-10-11 10:44 <DIR> TOOLS 2000-05-19 15:32 339 CONFIG.SYS 1999-10-26 13:38 0 BOOTLOG.TXT 2000-06-08 08:32 3 691 AUTOEXEC.BAT 4 File(s) 97 910 bytes Directory of A:\BMP 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 0 File(s) 0 bytes Directory of A:\factory 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 2000-06-08 13:09 2 662 3LNGINSF.BAT 1 File(s) 2 662 bytes Directory of A:\lang 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 1998-11-24 08:02 49 575 FORMAT.COM 1998-11-24 08:02 63 900 FDISK.EXE 2 File(s) 113 475 bytes Directory of A:\TOOLS 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 1998-05-06 22:01 49 575 FORMAT.COM 1995-10-27 20:29 28 164 BMPVIEW.EXE 1999-01-26 15:54 15 MAKEPA32.TXT 1998-05-06 22:01 3 878 XCOPY.EXE 1998-05-06 22:01 41 472 XCOPY32.MOD 1998-05-06 22:01 33 191 HIMEM.SYS 1998-05-06 22:01 125 495 EMM386.EXE 1998-05-06 22:01 18 967 SYS.COM 1996-01-31 21:55 18 CLK.COM 1994-04-02 08:20 22 HARDBOOT.COM 1999-02-03 15:46 15 MAKEPA16.TXT 1999-04-14 16:36 7 840 PARTFO32.EXE 2000-05-19 15:01 1 169 PARTFORM.BAT 1996-10-02 01:47 1 642 MBRCLR.COM 1999-07-01 11:58 8 175 BIOSCHKN.EXE 1998-06-23 08:55 5 904 PAR-TYPE.EXE 1998-11-24 08:02 29 271 MODE.COM 1998-11-24 08:02 15 252 ATTRIB.EXE 1998-11-24 08:02 19 083 DELTREE.EXE 1999-04-21 15:01 23 304 NTBB.EXE 1997-05-07 14:19 1 SYS.TXT 1999-07-01 12:23 61 566 F3DCHK.EXE 1998-05-11 20:01 34 566 KEYBOARD.SYS 1998-05-11 20:01 19 927 KEYB.COM 1999-10-26 14:31 910 partinfo.txt 1998-06-16 15:58 5 936 CHKDRVAC.EXE 1998-05-06 22:01 63 900 FDISK.EXE 1998-05-06 22:01 45 379 SMARTDRV.EXE 1992-12-03 19:48 10 695 SCISET.EXE 1997-06-25 15:49 6 YENT 1998-05-06 22:01 25 473 MSCDEX.EXE 1998-05-06 22:01 5 239 CHOICE.COM 1997-07-18 17:41 6 876 MBR.COM 1997-07-01 15:01 6 545 CHK2GB.COM 1998-06-10 20:04 8 128 PARTFORM.EXE 1990-01-04 02:09 19 MAKEPAR2.TXT 1990-01-04 01:00 27 MAKEPAR3.TXT 1990-01-04 01:00 27 MAKEPAR4.TXT 1998-02-13 13:47 15 MAKEPART.TXT 1999-04-14 13:47 5 200 DISKSIZE.EXE 1999-05-06 14:56 7 856 PARTFO16.EXE 1999-01-13 11:13 13 720 CDROMDRV.SYS 42 File(s) 734 463 bytes Total Files Listed: 49 File(s) 948 510 bytes 12 Dir(s) 268 800 bytes free A:\> CONFIG.SYS contents Here's the content of CONFIG.SYS. DEVICE=A:\TOOLS\HIMEM.SYS /TESTMEM:OFF REM I=B000-B7ff for Desktop BIOSes rem DEVICE=A:\TOOLS\EMM386.EXE NOEMS I=B000-B7ff x=C000-D000 DEVICE=A:\TOOLS\EMM386.EXE NOEMS x=C000-D000 DEVICE=A:\TOOLS\CDROMDRV.SYS /D:TOSCD001 BUFFERS=10 FILES=69 DOS=HIGH,UMB STACKS=9,256 LASTDRIVE=Z SWITCHES=/F SHELL=A:\COMMAND.COM /P /E:2048 AUTOEXEC.BAT contents :BEGIN @ECHO OFF PATH=A:\;A:\TOOLS; MSCDEX /D:TOSCD001 /L:Z /M:10 smartdrv 1024 128 SET TOOLS=A:\TOOLS SET COMSPEC=A:\COMMAND.COM SET EXITDRIVE=C: SET EXITPATH=\ CALL Z:\SETENV.BAT > NUL :TOSHCHK BIOSChkN IF NOT ERRORLEVEL 1 goto C_ACCESS BMPVIEW Z:\3LNGINST\BMP\NO_TOSP3.bmp /X=120 /Y=80 PAUSE > NUL SET EXITDRIVE=A: GOTO END :C_ACCESS CALL PARTFORM.BAT :C_EMPTY IF EXIST C:\*.* GOTO C_NOTEMPTY call z:\setenv.bat>nul goto PREPDU :C_NOTEMPTY REM ------------------MENU------------------------ :STARTMENU CLS BMPVIEW Z:\3LNGINST\BMP\LANGSELC.BMP /X=120 /Y=120 CLK CHOICE /C:123 /N >NUL REM L is the language that is selected IF ERRORLEVEL 1 SET L=%LNG1% IF ERRORLEVEL 2 SET L=%LNG2% IF ERRORLEVEL 3 SET L=%LNG3% SET BMP=BMP%L% BMPVIEW Z:\3LNGINST\%bmp%\HDDMENU.BMP /X=72 /Y=82 CLK CHOICE /C:129F /N > NUL IF ERRORLEVEL 4 GOTO FACTORY_MENU IF ERRORLEVEL 3 GOTO EXIT_MENU IF ERRORLEVEL 2 GOTO PARTFORM_MENU IF ERRORLEVEL 1 GOTO FORMAT_MENU GOTO END :FACTORY_MENU BMPVIEW Z:\3LNGINST\%bmp%\qformat.bmp /X=120 /Y=140 CLK choice /c:12 /N >nul IF ERRORLEVEL 2 GOTO STARTMENU IF ERRORLEVEL 1 GOTO FORMATF GOTO END :EXIT_MENU BMPVIEW Z:\3LNGINST\%bmp%\9.bmp /XC /X=96 /Y=267 choice /C:1pause /T:1,01 >nul SET EXITDRIVE=A: SET EXITPATH=\lang cls mode mono rem keyb xx>nul cls GOTO END :PARTFORM_MENU BMPVIEW Z:\3LNGINST\%bmp%\2.bmp /XC /X=96 /Y=216 choice /C:1pause /T:1,01 >nul BMPVIEW Z:\3LNGINST\%bmp%\partform.bmp /X=120 /Y=140 CLK choice /c:12 /N >nul IF ERRORLEVEL 2 GOTO STARTMENU IF ERRORLEVEL 1 GOTO PART_FORM SET EXITDRIVE=A: GOTO END :FORMAT_MENU BMPVIEW Z:\3LNGINST\%bmp%\1.bmp /XC /X=96 /Y=165 choice /C:1pause /T:1,01 >nul BMPVIEW Z:\3LNGINST\%bmp%\qformat.bmp /X=120 /Y=140 CLK choice /c:12 /N >nul IF ERRORLEVEL 2 GOTO STARTMENU IF ERRORLEVEL 1 GOTO FORMAT SET EXITDRIVE=A: GOTO END REM ------------------ MENU END ------------------------ :FORMAT bmpview Z:\3LNGINST\%bmp%\1.bmp /XC /X=145 /Y=235 choice /C:1pause /T:1,01 >nul CLS IF (%QFORMAT%)==(NO) GOTO FULLFO FORMAT C: /Q /V:"" <A:\TOOLS\YENT >NUL call z:\setenv.bat>nul goto PREPDU :FULLFO FORMAT C: /V:"" <A:\TOOLS\YENT call z:\setenv.bat>nul goto PREPDU :FORMATF CLS IF (%QFORMAT%)==(NO) GOTO FULLFO_F FORMAT C: /Q /V:"" <A:\TOOLS\YENT >NUL call z:\setenv.bat>nul goto PREPDU_F :FULLFO_F FORMAT C: /V:"" <A:\TOOLS\YENT call z:\setenv.bat>nul goto PREPDU_F :PART_FORM bmpview Z:\3LNGINST\bmp\1.bmp /XC /X=145 /Y=235 choice /C:1pause /T:1,01 >nul MBR /! HARDBOOT REM ====================== Triple Select ====================== :PREPDU XCOPY z:\3LNGINST\*.* C:\*.* /E /S /V >NUL ATTRIB -H -R -S C:\TOOLS\CDROMDRV.SYS COPY A:\TOOLS\CDROMDRV.SYS C:\TOOLS /Y SYS C: >NUL goto REBOOT :PREPDU_F copy A:\TOOLS\SMARTDRV.EXE C:\ /Y ATTRIB -H -R -S C:\SMARTDRV.EXE copy A:\FACTORY\3LNGINSF.bat c:\ c:\3LNGINSF.bat cls REM ====================== Dual Select END ====================== REM --------------- END ------------------ :REBOOT SMARTDRV.EXE /C bmpview Z:\3LNGINST\BMP\reboot3.bmp /X=120 /Y=140 :FOREVER pause >nul goto FOREVER :END SMARTDRV.EXE /C %EXITDRIVE% cd %EXITPATH% echo on CD structure S:\>dir /s Volume in drive S is T3ELK4SC Volume Serial Number is 2042-5BC9 Directory of S:\ 2000-08-22 14:14 <DIR> 3LNGINSF 2000-08-22 14:14 <DIR> 3LNGINST 2000-06-15 15:57 <DIR> CRC 2000-06-15 12:04 387 667 767 T310C1NO.W98 2000-09-07 15:36 273 setenv.BAT 2 File(s) 387 668 040 bytes Directory of S:\3LNGINSF 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1999-10-27 10:51 1 806 AUTOEXEC.BAT 2000-08-22 14:14 <DIR> BMP 2000-05-19 15:29 265 CONFIG.SYS 2000-08-22 14:14 <DIR> POSTINST 2000-08-22 14:14 <DIR> TOOLS 2000-08-22 14:14 <DIR> WIN98SYS 2 File(s) 2 071 bytes Directory of S:\3LNGINSF\BMP 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1999-01-04 02:38 718 3.BMP 2000-07-05 11:22 60 118 Cdchg2.bmp 2000-07-05 11:22 60 118 Cdchg3.bmp 2000-07-05 13:37 60 118 Fin.bmp 2000-07-06 14:18 120 118 Menu.bmp 2000-07-05 13:34 60 118 Nor.bmp 2000-07-05 11:53 35 318 Progress.bmp 2000-07-05 13:40 60 118 Swe.bmp 2000-07-05 12:09 84 118 Wrongcd2.bmp 2000-07-05 12:09 84 118 Wrongcd3.bmp 12 File(s) 626 416 bytes Directory of S:\3LNGINSF\POSTINST 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-05-19 09:15 33 POSTINST.BAT 1 File(s) 33 bytes Directory of S:\3LNGINSF\TOOLS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-07-06 14:49 3 593 3LNGINST.BAT 1998-11-24 08:02 15 252 ATTRIB.EXE 1995-10-27 18:29 28 164 BMPVIEW.EXE 1999-01-13 11:13 13 720 CDROMDRV.SYS 1998-05-06 20:01 5 239 CHOICE.COM 1996-01-31 19:55 18 CLK.COM 1998-11-24 08:02 19 083 DELTREE.EXE 1998-05-06 20:01 125 495 EMM386.EXE 1999-07-01 12:23 61 566 F3DCHK.EXE 1998-05-06 20:01 49 575 FORMAT.COM 1994-04-02 06:20 22 HARDBOOT.COM 1998-05-06 20:01 33 191 HIMEM.SYS 1998-05-06 20:01 25 473 MSCDEX.EXE 1998-05-06 20:01 12 663 RAMDRIVE.SYS 1998-05-06 20:01 45 379 SMARTDRV.EXE 1997-05-07 14:19 1 SYS.TXT 1995-09-27 14:25 6 813 VOLCHECK.EXE 1998-05-06 20:01 3 878 XCOPY.EXE 1998-05-06 20:01 41 472 XCOPY32.MOD 1997-06-25 13:49 6 YENT 20 File(s) 490 603 bytes Directory of S:\3LNGINSF\WIN98SYS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1998-12-04 20:00 222 390 IO.SYS 1998-05-06 20:01 18 967 SYS.COM 1998-05-06 20:01 93 880 command.com 3 File(s) 335 237 bytes Directory of S:\3LNGINST 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1999-05-31 09:51 1 576 AUTOEXEC.BAT 2000-08-22 14:14 <DIR> BMP 2000-08-22 14:14 <DIR> Bmpfin 2000-08-22 14:14 <DIR> Bmpnor 2000-08-22 14:14 <DIR> Bmpswe 2000-05-19 15:30 265 CONFIG.SYS 2000-08-22 14:14 <DIR> POSTINST 2000-08-22 14:14 <DIR> TOOLS 2000-08-22 14:14 <DIR> WIN98SYS 2 File(s) 1 841 bytes Directory of S:\3LNGINST\BMP 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1999-01-04 02:38 718 3.BMP 2000-07-05 11:22 60 118 Cdchg2.bmp 2000-07-05 11:22 60 118 Cdchg3.bmp 2000-07-05 13:37 60 118 Fin.bmp 2000-07-06 14:18 120 118 Menu.bmp 2000-07-05 13:34 60 118 Nor.bmp 2000-07-05 11:53 35 318 Progress.bmp 2000-07-06 14:08 40 518 Reboot3.bmp 2000-07-05 13:40 60 118 Swe.bmp 2000-07-05 12:09 84 118 Wrongcd2.bmp 2000-07-05 12:09 84 118 Wrongcd3.bmp 2000-07-05 13:52 48 118 langselc.bmp 2000-07-05 11:47 57 318 no_tosp3.bmp 15 File(s) 772 370 bytes Directory of S:\3LNGINST\Bmpfin 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1998-06-13 00:07 718 9.bmp 2000-03-08 15:02 78 486 Hddmenu.bmp 2000-03-08 15:31 25 318 No_tospc.bmp 2000-03-08 15:37 36 518 PARTFORM.BMP 2000-03-08 15:42 36 518 Qformat.bmp 7 File(s) 178 994 bytes Directory of S:\3LNGINST\Bmpnor 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1998-06-13 00:07 718 9.bmp 1999-05-05 13:26 78 486 Hddmenu.bmp 1998-07-13 11:36 25 318 No_tospc.bmp 1998-07-13 11:41 36 518 PARTFORM.BMP 1998-07-13 11:45 36 518 Qformat.bmp 7 File(s) 178 994 bytes Directory of S:\3LNGINST\Bmpswe 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1998-06-13 00:07 718 9.bmp 1999-05-06 08:14 78 486 Hddmenu.bmp 1998-07-10 16:25 25 318 No_tospc.bmp 1998-07-10 16:29 36 518 PARTFORM.BMP 1998-07-10 17:08 36 518 Qformat.bmp 7 File(s) 178 994 bytes Directory of S:\3LNGINST\POSTINST 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-05-19 09:15 33 POSTINST.BAT 1 File(s) 33 bytes Directory of S:\3LNGINST\TOOLS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-05-19 14:52 3 898 3LNGINST.BAT 1995-10-27 18:29 28 164 BMPVIEW.EXE 1999-01-13 11:13 13 720 CDROMDRV.SYS 1998-05-06 20:01 5 239 CHOICE.COM 1996-01-31 19:55 18 CLK.COM 1998-05-06 20:01 125 495 EMM386.EXE 1999-07-01 12:23 61 566 F3DCHK.EXE 1998-05-06 20:01 49 575 FORMAT.COM 1994-04-02 06:20 22 HARDBOOT.COM 1998-05-06 20:01 33 191 HIMEM.SYS 1998-05-06 20:01 25 473 MSCDEX.EXE 2000-07-06 14:41 910 PARTINFO.TXT 1998-05-06 20:01 12 663 RAMDRIVE.SYS 1998-05-06 20:01 45 379 SMARTDRV.EXE 1997-05-07 14:19 1 SYS.TXT 1995-09-27 14:25 6 813 VOLCHECK.EXE 1998-05-06 20:01 3 878 XCOPY.EXE 1998-05-06 20:01 41 472 XCOPY32.MOD 1997-06-25 13:49 6 YENT 19 File(s) 457 483 bytes Directory of S:\3LNGINST\WIN98SYS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1998-12-04 20:00 222 390 IO.SYS 1998-05-06 20:01 18 967 SYS.COM 1998-05-06 20:01 93 880 command.com 3 File(s) 335 237 bytes Directory of S:\CRC 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-06-15 12:07 181 422 T310C1NO.ALL 2000-06-15 12:09 215 427 T310C1NO.CRC 2000-06-15 12:07 2 157 T310C1NO.HID 3 File(s) 399 006 bytes Total Files Listed: 104 File(s) 391 625 352 bytes 42 Dir(s) 0 bytes free S:\> Now which line or lines need to be changed? Do I really have to change drive letter Z: to C:? Proposed solutions Solution #1 Ramhound proposed to change the boot order to following; CD-ROM, IDE-0, Floppy This didn't help. In fact, here is the result of it. Searching for Boot Record from CDROM..Not Found Searching for Boot Record from IDE-0.. OK Missing operating system Any other ideas?... Solution #2 Rik proposed to run Z:\setup. Now that I have found a way to drop to DOS prompt with Ctrl+C as described above (Update 2), I did try running setup but there is no such command or file in there. So that didn't work.

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• Blocking a distributed, consistent spam attack? Could it be something more serious?

  - by mattmcmanus

  I will do my best to try and explain this as it's strange and confusing to me. I posted a little while ago about a sustained spike in mysql queries on a VPS I had recently setup. It turned out to be a single post on a site I was developmenting. The post had over 30,000 spam comments! Since the site was one I was slowly building I hadn't configured the anti-spam comment software yet. I've since deleted the particular post which has given the server a break but the post's url keeps on getting hit. The frustrating thing is every hit is from a different IP. How do I even start to block/prevent this? Is this even something I need to worry about? Here are some more specific details about my setup, just to give some context: Ubuntu 8.10 server with ufw setup The site I'm building is in Drupal which now has Mollom setup for spam control. It wasn't configured before. The requests happen inconsistently. Sometimes it's every couple seconds and other times it's a an or so between hits. However it's been going on pretty much constantly like that for over a week. Here is a sample of my apache access log from the last 15 minutes just for the page in question: dev.domain-name.com:80 97.87.97.169 - - [28/Mar/2010:06:47:40 +0000] "POST http://dev.domain-name.com/comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 202.149.24.193 - - [28/Mar/2010:06:50:37 +0000] "POST /comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 193.106.92.77 - - [28/Mar/2010:06:50:39 +0000] "POST /comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 194.85.136.187 - - [28/Mar/2010:06:52:03 +0000] "POST /comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 220.255.7.13 - - [28/Mar/2010:06:52:14 +0000] "POST /comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 195.70.55.151 - - [28/Mar/2010:06:53:41 +0000] "POST /comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 71.91.4.31 - - [28/Mar/2010:06:56:07 +0000] "POST http://dev.domain-name.com/comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 98.209.203.170 - - [28/Mar/2010:06:56:10 +0000] "POST http://dev.domain-name.com/comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 24.255.137.159 - - [28/Mar/2010:06:56:19 +0000] "POST http://dev.domain-name.com/comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 77.242.20.18 - - [28/Mar/2010:07:00:15 +0000] "POST /comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 94.75.215.42 - - [28/Mar/2010:07:01:34 +0000] "POST /comment/reply/3 HTTP/1.0" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 89.115.2.128 - - [28/Mar/2010:07:03:20 +0000] "POST /comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 75.65.230.252 - - [28/Mar/2010:07:05:05 +0000] "POST http://dev.domain-name.com/comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 206.251.255.61 - - [28/Mar/2010:07:06:46 +0000] "POST /comment/reply/3 HTTP/1.0" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dev.domain-name.com:80 213.194.120.14 - - [28/Mar/2010:07:07:22 +0000] "POST /comment/reply/3 HTTP/1.1" 404 5895 "http://dev.domain-name.com/blog/2009/11/23/another" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" I understand this is an open ended question, but any help or insight you could give would be much appreciated.

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• Three ways to upload/post/convert iMovie to YouTube

  - by user44251

  For Mac users, iMovie is probably a convenient tool for making, editing their own home movies so as to upload to YouTube for sharing with more people. However, uploading iMovie files to YouTube can't be always a smooth run, I did notice many people complaining about it. This article is delivered for guiding those who are haunted by the nightmare by providing three common ways to upload iMovie files to YouTube. YouTube and iMovie YouTube is the most popular video sharing website for users to upload, share and view videos. It empowers anyone with an Internet connection the ability to upload video clips and share them with friends, family and the world. Users are invited to leave comments, pick favourites, send messages to each other and watch videos sorted into subjects and channels. YouTube accepts videos uploaded in most container formats, including WMV (Windows Media Video), 3GP (Cell Phones), AVI (Windows), MOV (Mac), MP4 (iPod/PSP), FLV (Adobe Flash), MKV (H.264). These include video codecs such as MP4, MPEG and WMV. iMovie is a common video editing software application comes with every Mac for users to edit their own home movies. It imports video footage to the Mac using either the Firewire interface on most MiniDV format digital video cameras, the USB port, or by importing the files from a hard drive where users can edit the video clips, add titles, and add music. Since 1999, eight versions of iMovie have been released by Apple, each with its own functions and characteristic, and each of them deal with videos in a way more or less different. But the most common formats handled with iMovie if specialty discarded as far as to my research are MOV, DV, HDV, MPEG-4. Three ways for successful upload iMovie files to YouTube Solution one and solution two suitable for those who are 100 certainty with their iMovie files which are fully compatible with YouTube. For smooth uploading, you are required to get a YouTube account first. Solution 1: Directly upload iMovie to YouTube Step 1: Launch iMovie, select the project you want to upload in YouTube. Step 2: Go to the file menu, click Share, select Export Movie Step 3: Specify the output file name and directory and then type the video type and video size. Solution 2: Post iMovie to YouTube straightly Step 1: Launch iMovie, choose the project you want to post in YouTube Step 2: From the Share menu, choose YouTube Step 3: In the pop-up YouTube windows, specify the name of your YouTube account, the password, choose the Category and fill in the description and tags of the project. Tick Make this movie more private on the bottom of the window, if possible, to limit those who can view the project. Click Next, and then click Publish. iMovie will automatically export and upload the movie to YouTube. Step 4: Click Tell a Friend to email friends and your family about your film. You are also allowed to copy the URL from Tell a Friend window and paste it into an email you created in your favourite email application if you like. Anyone you send to email to will be able to follow the URL directly to your movie. Note: Videos uploaded to YouTube are limited to ten minutes in length and a file size of 2GB. Solution 3: Upload to iMovie after conversion If neither of the above mentioned method works, there is still a third way to turn to. Sometimes, your iMovie files may not be recognized by YouTube due to the versions of iMovie (settings and functions may varies among versions), video itself (video format difference because of file extension, resolution, video size and length), compatibility (videos that are completely incompatible with YouTube). In this circumstance, the best and reliable method is to convert your iMovie files to YouTube accepted files, iMovie to YouTube converter will be inevitably the ideal choice. iMovie to YouTube converter is an elaborately designed tool for convert iMovie files to YouTube workable WMV, 3GP, AVI, MOV, MP4, FLV, MKV for smooth uploading with hard-to-believe conversion speed and second to none output quality. It can also convert between almost all popular popular file formats like AVI, WMV, MPG, MOV, VOB, DV, MP4, FLV, 3GP, RM, ASF, SWF, MP3, AAC, AC3, AIFF, AMR, WAV, WMA etc so as to put on various portable devices, import to video editing software or play on vast amount video players. iMovie to YouTube converter can also served as an excellent video editing tool to meet your specific program requirements. For example, you can cut your video files to a certain length, or split your video files to smaller ones and select the proper resolution suitable for demands of YouTube by Clip or Settings separately. Crop allows you to cut off unwanted black edges from your videos. Besides, you can also have a good command of the whole process or snapshot your favourite pictures from the preview window. More can be expected if you have a try.

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• Running in to some issues with Tumblr's Theme Parser

  - by Kylee

  Below part of a tumblr theme I'm working on and you will notice that I use the {block:PostType} syntax to declare the opening tag of each post, which is a <li> element in an Ordered List. This allows me to not only dynamicly set the li's class based on the type of post but cuts down on the number of times I'm calling the ShareThis JS which was really bogging down the page. This creates a new issue though which I believe is a flaw in Tumblr's parser. Each post is an ordered list with one <li> element in it. I know I could solve this by having each post as a <div> but I really like the control and semantics of using a list. Tumblr gurus? Suggestions? Sample of code: {block:Posts} <ol class="posts"> {block:Text} <li class="post type_text" id="{PostID}"> {block:Title} <h2><a href="{Permalink}" title="Go to post '{Title}'.">{Title}</a></h2> {/block:Title} {Body} {/block:Text} {block:Photo} <li class="post type_photo" id="{PostID}"> <div class="image"> <a href="{LinkURL}"><img src="{PhotoURL-500}" alt="{PhotoAlt}"></a> </div> {block:Caption} {Caption} {/block:Caption} {/block:Photo} {block:Photoset} <li class="post type_photoset" id="{PostID}"> {Photoset-500} {block:Caption} {Caption} {/block:Caption} {/block:Photoset} {block:Quote} <li class="post type_quote" id="{PostID}"> <blockquote> <div class="quote_symbol">&ldquo;</div> {Quote} </blockquote> {block:Source} <div class="quote_source">{Source}</div> {/block:Source} {/block:Quote} {block:Link} <li class="post type_link" id="{PostID}"> <h2><a href="{URL}" {Target} title="Go to {Name}.">{Name}</a></h2> {block:Description} {Description} {/block:Description} {/block:Link} {block:Chat} <li class="post type_chat" id="{PostID}"> {block:Title} <h2><a href="{Permalink}" title="Go to post {PostID} '{Title}'.">{Title}</a></h2> {/block:Title} <table class="chat_log"> {block:Lines} <tr class="{Alt} user_{UserNumber}"> <td class="person">{block:Label}{Label}{/block:Label}</td> <td class="message">{Line}</td> </tr> {/block:Lines} </table> {/block:Chat} {block:Video} <li class="post type_video" id="{PostID}"> {Video-500} {block:Caption} {Caption} {/block:Caption} {/block:Video} {block:Audio} <li class="post type_audio" id="{PostID}"> {AudioPlayerWhite} {block:Caption} {Caption} {/block:Caption} {block:ExternalAudio} <p><a href="{ExternalAudioURL}" title="Download '{ExternalAudioURL}'">Download</a></p> {/block:ExternalAudio} {/block:Audio} <div class="post_footer"> <p class="post_date">Posted on {ShortMonth} {DayOfMonth}, {Year} at {12hour}:{Minutes} {AmPm}</p> <ul> <li><a class="comment_link" href="{Permalink}#disqus_thread">Comments</a></li> <li><script type="text/javascript" src="http://w.sharethis.com/button/sharethis.js#publisher=722e181d-1d8a-4363-9ebe-82d5263aea94&amp;type=website"></script></li> </ul> {block:PermalinkPage} <div id="disqus_thread"></div> <script type="text/javascript" src="http://disqus.com/forums/kyleetilley/embed.js"></script> <noscript><a href="http://disqus.com/forums/kyleetilley/?url=ref">View the discussion thread.</a></noscript> {/block:PermalinkPage} </div> </li> </ol> {/block:Posts}

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• Preloading Winforms using a Stack and Hidden Form

  - by msarchet

  I am currently working on a project where we have a couple very control heavy user controls that are being used inside a MDI Controller. This is a Line of Business app and it is very data driven. The problem that we were facing was the aforementioned controls would load very very slowly, we dipped our toes into the waters of multi-threading for the control loading but that was not a solution for a plethora of reasons. Our solution to increasing the performance of the controls ended up being to 'pre-load' the forms onto a hidden window, create a stack of the existing forms, and pop off of the stack as the user requested a form. Now the current issue that I'm seeing that will arise as we push this 'fix' out to our testers, and the ultimately our users is this: Currently the 'hidden' window that contains the preloaded forms is visible in task manager, and can be shut down thus causing all of the controls to be lost. Then you have to create them on the fly losing the performance increase. Secondly, when the user uses up the stack we lose the performance increase (current solution to this is discussed below). For the first problem, is there a way to hide this window from task manager, perhaps by creating a parent form that encapsulates both the main form for the program and the hidden form? Our current solution to the second problem is to have an inactivity timer that when it fires checks the stacks for the forms, and loads a new form onto the stack if it isn't full. However this still has the potential of causing a hang in the UI while it creates the forms. A possible solutions for this would be to put 'used' forms back onto the stack, but I feel like there may be a better way. EDIT: For control design clarification From the comments I have realized there is a lack of clarity on what exactly the control is doing. Here is a detailed explanation of one of the controls. I have defined for this control loading time as the time it takes from when a user performs an action that would open a control, until the time a control is accessible to be edited. The control is for entering Prescriptions for a patient in the system, it has about 5 tabbed groups with a total of about 180 controls. The user selects to open a new Prescription control from inside the main program, this control is loaded into the MDI Child area of the Main Form (which is a DevExpress Ribbon Control). From the time the user clicks New (or loads an existing record) until the control is visible. The list of actions that happens in the program is this: The stack is checked for the existence of a control. If the control exists it is popped off of the stack. The control is rendered on screen. This is what takes 2 seconds The control then is populated with a blank object, or with existing data. The control is ready to use. The average percentage of loading time, across about 10 different machines, with different hardware the control rendering takes about 85 - 95 percent of the control loading time. Without using the stack the control takes about 2 seconds to load, with the stack it takes about .8 seconds, this second time is acceptable. I have looked at Henry's link and I had previously already implemented the applicable suggestions. Again I re-iterate my question as What is the best method to move controls to and from the stack with as little UI interruption as possible?

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• Should we hire someone who writes C in Perl?

  - by paxdiablo

  One of my colleagues recently interviewed some candidates for a job and one said they had very good Perl experience. Since my colleague didn't know Perl, he asked me for a critique of some code written (off-site) by that potential hire, so I had a look and told him my concerns (the main one was that it originally had no comments and it's not like we gave them enough time). However, the code works so I'm loathe to say no-go without some more input. Another concern is that this code basically looks exactly how I'd code it in C. It's been a while since I did Perl (and I didn't do a lot, I'm more a Python bod for quick scripts) but I seem to recall that it was a much more expressive language than what this guy used. I'm looking for input from real Perl coders, and suggestions for how it could be improved (and why a Perl coder should know that method of improvement). You can also wax lyrical about whether people who write one language in a totally different language should (or shouldn't be hired). I'm interested in your arguments but this question is primarily for a critique of the code. The spec was to successfully process a CSV file as follows and output the individual fields: User ID,Name , Level,Numeric ID pax, Pax Morgan ,admin,0 gt," Turner, George" rubbish,user,1 ms,"Mark \"X-Men\" Spencer","guest user",2 ab,, "user","3" The output was to be something like this (the potential hire's code actually output this): User ID,Name , Level,Numeric ID: [User ID] [Name] [Level] [Numeric ID] pax, Pax Morgan ,admin,0: [pax] [Pax Morgan] [admin] [0] gt," Turner, George " rubbish,user,1: [gt] [ Turner, George ] [user] [1] ms,"Mark \"X-Men\" Spencer","guest user",2: [ms] [Mark "X-Men" Spencer] [guest user] [2] ab,, "user","3": [ab] [] [user] [3] Here is the code they submitted: #!/usr/bin/perl # Open file. open (IN, "qq.in") || die "Cannot open qq.in"; # Process every line. while (<IN>) { chomp; $line = $_; print "$line:\n"; # Process every field in line. while ($line ne "") { # Skip spaces and start with empty field. if (substr ($line,0,1) eq " ") { $line = substr ($line,1); next; } $field = ""; $minlen = 0; # Detect quoted field or otherwise. if (substr ($line,0,1) eq "\"") { $line = substr ($line,1); $pastquote = 0; while ($line ne "") { # Special handling for quotes (\\ and \"). if (length ($line) >= 2) { if (substr ($line,0,2) eq "\\\"") { $field = $field . "\""; $line = substr ($line,2); next; } if (substr ($line,0,2) eq "\\\\") { $field = $field . "\\"; $line = substr ($line,2); next; } } # Detect closing quote. if (($pastquote == 0) && (substr ($line,0,1) eq "\"")) { $pastquote = 1; $line = substr ($line,1); $minlen = length ($field); next; } # Only worry about comma if past closing quote. if (($pastquote == 1) && (substr ($line,0,1) eq ",")) { $line = substr ($line,1); last; } $field = $field . substr ($line,0,1); $line = substr ($line,1); } } else { while ($line ne "") { if (substr ($line,0,1) eq ",") { $line = substr ($line,1); last; } if ($pastquote == 0) { $field = $field . substr ($line,0,1); } $line = substr ($line,1); } } # Strip trailing space. while ($field ne "") { if (length ($field) == $minlen) { last; } if (substr ($field,length ($field)-1,1) eq " ") { $field = substr ($field,0, length ($field)-1); next; } last; } print " [$field]\n"; } } close (IN);

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• Nginx + PHP-FPM executes script, but returns 404

  - by MorfiusX

  I am using Nginx + PHP-FPM to run a Wordpress based site. I have a URL that should return dynamically generated JSON data for use with the DataTables jQuery plugin. The data is returned properly, but with a return code of 404. I think this is a Nginx config issue, but I haven't been able to figure out why. The script 'getTable.php' works properly on the production version of the site which is currently using Apache. Anyone know how I can get this to work on Nginx? URL: http://dev.iloveskydiving.org/wp-content/plugins/ils-workflow/lib/getTable.php SERVER: CentOS 6 + Varnish (caching disabled for development) + Nginx + PHP-FPM + Wordpress + W3 Total Cache Nginx Config: server { # Server Parameters listen 127.0.0.1:8082; server_name dev.iloveskydiving.org; root /var/www/dev.iloveskydiving.org/html; access_log /var/www/dev.iloveskydiving.org/logs/access.log main; error_log /var/www/dev.iloveskydiving.org/logs/error.log error; index index.php; # Rewrite minified CSS and JS files location ~* \.(css|js) { if (!-f $request_filename) { rewrite ^/wp-content/w3tc/min/(.+\.(css|js))$ /wp-content/w3tc/min/index.php?file=$1 last; expires max; } } # Set a variable to work around the lack of nested conditionals set $cache_uri $request_uri; # Don't cache uris containing the following segments if ($request_uri ~* "(\/wp-admin\/|\/xmlrpc.php|\/wp-(app|cron|login|register|mail)\.php|wp-.*\.php|index\.php|wp\-comments\-popup\.php|wp\-links\-opml\.php|wp\-locations\.php)") { set $cache_uri "no cache"; } # Don't use the cache for logged in users or recent commenters if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp\-postpass|wordpress_logged_in") { set $cache_uri 'no cache'; } # Use cached or actual file if they exists, otherwise pass request to WordPress location / { try_files /wp-content/w3tc/pgcache/$cache_uri/_index.html $uri $uri/ /index.php?q=$uri&$args; } # Cache static files for as long as possible location ~* \.(xml|ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|css|rss|atom|js|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ { try_files $uri =404; expires max; access_log off; } # Deny access to hidden files location ~* /\.ht { deny all; access_log off; log_not_found off; } location ~ \.php$ { try_files $uri =404; fastcgi_split_path_info ^(.+\.php)(/.+)$; include /etc/nginx/fastcgi_params; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_script_name; fastcgi_intercept_errors on; fastcgi_pass unix:/var/lib/php-fpm/php-fpm.sock; # port where FastCGI processes were spawned } } Fast CGI Params: fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_param SCRIPT_NAME $fastcgi_script_name; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param HTTPS $https if_not_empty; fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx/$nginx_version; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; # PHP only, required if PHP was built with --enable-force-cgi-redirect fastcgi_param REDIRECT_STATUS 200; UPDATE: Upon further digging, it looks like Nginx is generating the 404 and PHP-FPM is executing the script properly and returning a 200. UPDATE: Here are the contents of the script: <?php /** * Connect to Wordpres */ require(dirname(__FILE__) . '/../../../../wp-blog-header.php'); /** * Define temporary array */ $aaData = array(); $aaData['aaData'] = array(); /** * Execute Query */ $query = new WP_Query( array( 'post_type' => 'post', 'posts_per_page' => '-1' ) ); foreach ($query->posts as $post) { array_push( $aaData['aaData'], array( $post->post_title ) ); } /** * Echo JSON encoded array */ echo json_encode($aaData);

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• How to convert html textfield/area data to server-side txt file? [closed]

  - by olijake

  How can I make a script that will convert the text/data in a html textfield/textarea and send it to the server, which then saves it as a .txt file for storage? NOTE: I am hosting a website(for testing purposes) using Apache 2.2 on a Windows 7 machine. I downloaded PHP version 5.4.7, but have not yet installed on my server yet (not sure if I will need it, but also not sure how to install it). 1st problem: Saving text to server Html page/section with title textfield, text textarea, and submit button. You would enter a title, the text/notes you need in the textfield, then press the submit button to have it store the text in the textarea, as a .txt file on the server called .txt. 2nd problem: Opening text from server Html with list of all txt files OR textfield for entering in title, then submit button to send the title of the requested .txt file to the server, which would then load it up on the page. Here is what I have so far: (let me know if there is something that I should change or if something just isn't correct in the index.html code I have right now.) <!DOCTYPE HTML> <html> <head> <title>Insert Title</title> <meta http-equiv="Content-Type" content="Text/HTML; charset=UTF-8"/> </head> <body> <form method="post" action="save.INSERT_FILETYPE" name="textfile" enctype="multipart/form-data"> <input type="text" name="title"><br/> <textarea rows="20" cols="100" id="text" name="text"></textarea><br/> <input type="submit" name="submit" value="Submit Text to Server"> </form><br/> <hr style="width: 100%; height: 4px;"><br/> <form method="post" action="open.INSERT_FILETYPE" name="textfile" enctype="multipart/form-data"> <input type="text" name="title"><br/> <input type="submit" name="submit" value="Submit Txt File Request"> </form><br/> <div>Opened text file displays here or goes on another page</div> </body> </html> I plan on using a server side language/script, but ANYTHING that gets the job done is fine. I already tried looking into using some ASP/jScript/PHP, but have had some trouble implementing it into my server. (ie: getting the modules loaded and telling the server what file types to parse.) I know this may be an extremely easy fix, but then in that case, hopefully you wouldn't mind helping me out a little :). If it turns out that this is MUCH more complicated than I expect, then feel free to let me know that, so I don't waste me time running in circles. I appreciate any help/assistance that you can provide, Thanks, Jake EDIT: Wrong Apache version. In response to the comments/closing of this thread: My question: "How exactly do I install the PHP module on the apache server? and is this even possible? and is this even recommended?" ^ In case I wasn't clear enough already To Clarify: I understand the basics of PHP, I just have trouble with INSTALLING PHP on the apache server. (I have used PHP before, but never successfully on apache (so far...)) For my script I wrote something similar to this already (using fopen() and a few other commands): <?php fopen("notes.txt", "r"); file_put_contents("notes.txt",teststring1); ?> I have used javascript for this task before also (although I prefer using PHP and server-side languages): <script language="javascript"> function WriteToFile(){ var fso = new ActiveXObject("Scripting.FileSystemObject"); var s = fso.CreateTextFile("C:\\NewFile.txt", true); var text=document.getElementById("TextArea1").innerText; s.WriteLine(text); s.WriteLine('***********************'); s.Close(); } </script>

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• NHibernate won't persist DateTime SqlDateTime overflow

  - by chris raethke

  I am working on an ASP.NET MVC project with NHibernate as the backend and am having some trouble getting some dates to write back to my SQL Server database tables. These date fields are NOT nullable, so the many answers here about how to setup nullable datetimes have not helped. Basically when I try to save the entity which has a DateAdded and a LastUpdated fields, I am getting a SqlDateTime overflow exception. I have had a similar problem in the past where I was trying to write a datetime field into a smalldatetime column, updating the type on the column appeared to fix the problem. My gut feeling is that its going to be some problem with the table definition or some type of incompatible data types, and the overflow exception is a bit of a bum steer. I have attached an example of the table definition and the query that NHibernate is trying to run, any help or suggestions would be greatly appreciated. CREATE TABLE [dbo].[CustomPages]( [ID] [uniqueidentifier] NOT NULL, [StoreID] [uniqueidentifier] NOT NULL, [DateAdded] [datetime] NOT NULL, [AddedByID] [uniqueidentifier] NOT NULL, [LastUpdated] [datetime] NOT NULL, [LastUpdatedByID] [uniqueidentifier] NOT NULL, [Title] [nvarchar](150) NOT NULL, [Term] [nvarchar](150) NOT NULL, [Content] [ntext] NULL ) exec sp_executesql N'INSERT INTO CustomPages (Title, Term, Content, LastUpdated, DateAdded, StoreID, LastUpdatedById, AddedById, ID) VALUES (@p0, @p1, @p2, @p3, @p4, @p5, @p6, @p7, @p8)',N'@p0 nvarchar(21),@p1 nvarchar(21),@p2 nvarchar(33),@p3 datetime,@p4 datetime,@p5 uniqueidentifier,@p6 uniqueidentifier,@p7 uniqueidentifier,@p8 uniqueidentifier',@p0=N'Size and Colour Chart',@p1=N'size-and-colour-chart',@p2=N'This is the size and colour chart',@p3=''2009-03-14 14:29:37:000'',@p4=''2009-03-14 14:29:37:000'',@p5='48315F9F-0E00-4654-A2C0-62FB466E529D',@p6='1480221A-605A-4D72-B0E5-E1FE72C5D43C',@p7='1480221A-605A-4D72-B0E5-E1FE72C5D43C',@p8='1E421F9E-9A00-49CF-9180-DCD22FCE7F55' In response the the answers/comments, I am using Fluent NHibernate and the generated mapping is below public CustomPageMap() { WithTable("CustomPages"); Id( x => x.ID, "ID" ) .WithUnsavedValue(Guid.Empty) . GeneratedBy.Guid(); References(x => x.Store, "StoreID"); Map(x => x.DateAdded, "DateAdded"); References(x => x.AddedBy, "AddedById"); Map(x => x.LastUpdated, "LastUpdated"); References(x => x.LastUpdatedBy, "LastUpdatedById"); Map(x => x.Title, "Title"); Map(x => x.Term, "Term"); Map(x => x.Content, "Content"); } <?xml version="1.0" encoding="utf-8"?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" default-lazy="false" assembly="MyNamespace.Core" namespace="MyNamespace.Core"> <class name="CustomPage" table="CustomPages" xmlns="urn:nhibernate-mapping-2.2"> <id name="ID" column="ID" type="Guid" unsaved-value="00000000-0000-0000-0000-000000000000"><generator class="guid" /></id> <property name="Title" column="Title" length="100" type="String"><column name="Title" /></property> <property name="Term" column="Term" length="100" type="String"><column name="Term" /></property> <property name="Content" column="Content" length="100" type="String"><column name="Content" /></property> <property name="LastUpdated" column="LastUpdated" type="DateTime"><column name="LastUpdated" /></property> <property name="DateAdded" column="DateAdded" type="DateTime"><column name="DateAdded" /></property> <many-to-one name="Store" column="StoreID" /><many-to-one name="LastUpdatedBy" column="LastUpdatedById" /> <many-to-one name="AddedBy" column="AddedById" /></class></hibernate-mapping>

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• How to disable Mac OS X from using swap when there still is "Inactive" memory?

  - by Motin

  A common phenomena in my day to day usage (and several other's according to various posts throughout the internet) of OS X, the system seems to become slow whenever there is no more "Free" memory available. Supposedly, this is due to swapping, since heavy disk activity is apparent and that vm_stat reports many pageouts. (Correct me from wrong) However, the amount of "Inactive" ram is typically around 12.5%-25% of all available memory (^1.) when swapping starts/occurs/ends. According to http://support.apple.com/kb/ht1342 : Inactive memory This information in memory is not actively being used, but was recently used. For example, if you've been using Mail and then quit it, the RAM that Mail was using is marked as Inactive memory. This Inactive memory is available for use by another application, just like Free memory. However, if you open Mail before its Inactive memory is used by a different application, Mail will open quicker because its Inactive memory is converted to Active memory, instead of loading Mail from the slower hard disk. And according to http://developer.apple.com/library/mac/#documentation/Performance/Conceptual/ManagingMemory/Articles/AboutMemory.html : The inactive list contains pages that are currently resident in physical memory but have not been accessed recently. These pages contain valid data but may be released from memory at any time. So, basically: When a program has quit, it's memory becomes marked as Inactive and should be claimable at any time. Still, OS X will prefer to start swapping out memory to the Swap file instead of just claiming this memory, whenever the "Free" memory gets to low. Why? What is the advantage of this behavior over, say, instantly releasing Inactive memory and not even touch the swap file? Some sources (^2.) indicate that OS X would page out the "Inactive" memory to swap before releasing it, but that doesn't make sense now does it if the memory may be released from memory at any time? Swapping is expensive, releasing is cheap, right? Can this behavior be changed using some preference or known hack? (Preferably one that doesn't include disabling swap/dynamic_pager altogether and restarting...) I do appreciate the purge command, as well as the concept of Repairing disk permissions to force some Free memory, but those are ways to painfully force more Free memory than to actually fixing the swap/release decision logic... Btw a similar question was asked here: http://forums.macnn.com/90/mac-os-x/434650/why-does-os-x-swap-when/ and here: http://hintsforums.macworld.com/showthread.php?t=87688 but even though the OPs re-asked the core question, none of the replies addresses an answer to it... ^1. UPDATE 17-mar-2012 Since I first posted this question, I have gone from 4gb to 8gb of installed ram, and the problem remains. The amount of "Inactive" ram was 0.5gb-1.0gb before and is now typically around 1.0-2.0GB when swapping starts/occurs/ends, ie it seems that around 12.5%-25% of the ram is preserved as Inactive by osx kernel logic. ^2. For instance http://apple.stackexchange.com/questions/4288/what-does-it-mean-if-i-have-lots-of-inactive-memory-at-the-end-of-a-work-day : Once all your memory is used (free memory is 0), the OS will write out inactive memory to the swapfile to make more room in active memory. UPDATE 17-mar-2012 Here is a round-up of the methods that have been suggested to help so far: The purge command "Used to approximate initial boot conditions with a cold disk buffer cache for performance analysis. It does not affect anonymous memory that has been allocated through malloc, vm_allocate, etc". This is useful to prevent osx to swap-out the disk cache (which is ridiculous that osx actually does so in the first place), but with the downside that the disk cache is released, meaning that if the disk cache was not about to be swapped out, one would simply end up with a cold disk buffer cache, probably affecting performance negatively. The FreeMemory app and/or Repairing disk permissions to force some Free memory Doesn't help releasing any memory, only moving some gigabytes of memory contents from ram to the hd. In the end, this causes lots of swap-ins when I attempt to use the applications that were open while freeing memory, as a lot of its vm is now on swap. Speeding up swap-allocation using dynamicpagerwrapper Seems a good thing to do in order to speed up swap-usage, but does not address the problem of osx swapping in the first place while there is still inactive memory. Disabling swap by disabling dynamicpager and restarting This will force osx not to use swap to the price of the system hanging when all memory is used. Not a viable alternative... Disabling swap using a hacked dynamicpager Similar to disabling dynamicpager above, some excerpts from the comments to the blog post indicate that this is not a viable solution: "The Inactive Memory is high as usual". "when your system is running out of memory, the whole os hangs...", "if you consume the whole amount of memory of the mac, the machine will likely hang" To sum up, I am still unaware of a way of disabling Mac OS X from using swap when there still is "Inactive" memory. If it isn't possible, maybe at least there is an explanation somewhere of why osx prefers to swap out memory that may be released from memory at any time?

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• Psychology researcher wants to learn new language

  - by user273347

  I'm currently considering R, matlab, or python, but I'm open to other options. Could you help me pick the best language for my needs? Here are the criteria I have in mind (not in order): Simple to learn. I don't really have a lot of free time, so I'm looking for something that isn't extremely complicated and/or difficult to pick up. I know some C, FWIW. Good for statistics/psychometrics. I do a ton of statistics and psychometrics analysis. A lot of it is basic stuff that I can do with SPSS, but I'd like to play around with the more advanced stuff too (bootstrapping, genetic programming, data mining, neural nets, modeling, etc). I'm looking for a language/environment that can help me run my simpler analyses faster and give me more options than a canned stat package like SPSS. If it can even make tables for me, then it'll be perfect. I also do a fair bit of experimental psychology. I use a canned experiment "programming" software (SuperLab) to make most of my experiments, but I want to be able to program executable programs that I can run on any computer and that can compile the data from the experiments in a spreadsheet. I know python has psychopy and pyepl and matlab has psychtoolbox, but I don't know which one is best. If R had something like this, I'd probably be sold on R already. I'm looking for something regularly used in academe and industry. Everybody else here (including myself, so far) uses canned stat and experiment programming software. One of the reasons I'm trying to learn a programming language is so that I can keep up when I move to another lab. Looking forward to your comments and suggestions. Thank you all for your kind and informative replies. I appreciate it. It's still a tough choice because of so many strong arguments for each language. Python - Thinking about it, I've forgotten so much about C already (I don't even remember what to do with an array) that it might be better for me to start from scratch with a simple program that does what it's supposed to do. It looks like it can do most of the things I'll need it to do, though not as cleanly as R and MATLAB. R - I'm really liking what I'm reading about R. The packages are perfect for my statistical work now. Given the purpose of R, I don't think it's suited to building psychological experiments though. To clarify, what I mean is making a program that presents visual and auditory stimuli to my specifications (hundreds of them in a preset and/or randomized sequence) and records the response data gathered from participants. MATLAB - It's awesome that cognitive and neuro folk are recommending MATLAB, because I'm preparing for the big leap from social and personality psychology to cognitive neuro. The problem is the Uni where I work doesn't have MATLAB licenses (and 3750 GBP for a compiler license is not an option for me haha). Octave looks like a good alternative. PsychToolbox is compatible with Octave, thankfully. SQL - Thanks for the tip. I'll explore that option, too. Python will be the least backbreaking and most useful in the short term. R is well suited to my current work. MATLAB is well suited to my prospective work. It's a tough call, but I think I am now equipped to make a more well-informed decision about where to go next. Thanks again!

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• How to overcome shortcomings in reporting from EAV database?

  - by David Archer

  The major shortcomings with Entity-Attribute-Value database designs in SQL all seem to be related to being able to query and report on the data efficiently and quickly. Most of the information I read on the subject warn against implementing EAV due to these problems and the commonality of querying/reporting for almost all applications. I am currently designing a system where almost all the fields necessary for data storage are not known at design/compile time and are defined by the end-user of the system. EAV seems like a good fit for this requirement but due to the problems I've read about, I am hesitant in implementing it as there are also some pretty heavy reporting requirements for this system as well. I think I've come up with a way around this but would like to pose the question to the SO community. Given that typical normalized database (OLTP) still isn't always the best option for running reports, a good practice seems to be having a "reporting" database (OLAP) where the data from the normalized database is copied to, indexed extensively, and possibly denormalized for easier querying. Could the same idea be used to work around the shortcomings of an EAV design? The main downside I see are the increased complexity of transferring the data from the EAV database to reporting as you may end up having to alter the tables in the reporting database as new fields are defined in the EAV database. But that is hardly impossible and seems to be an acceptable tradeoff for the increased flexibility given by the EAV design. This downside also exists if I use a non-SQL data store (i.e. CouchDB or similar) for the main data storage since all the standard reporting tools are expecting a SQL backend to query against. Do the issues with EAV systems mostly go away if you have a seperate reporting database for querying? EDIT: Thanks for the comments so far. One of the important things about the system I'm working on it that I'm really only talking about using EAV for one of the entities, not everything in the system. The whole gist of the system is to be able to pull data from multiple disparate sources that are not known ahead of time and crunch the data to come up with some "best known" data about a particular entity. So every "field" I'm dealing with is multi-valued and I'm also required to track history for each. The normalized design for this ends up being 1 table per field which makes querying it kind of painful anyway. Here are the table schemas and sample data I'm looking at (obviously changed from what I'm working on but I think it illustrates the point well): EAV Tables Person ------------------- - Id - Name - ------------------- - 123 - Joe Smith - ------------------- Person_Value ------------------------------------------------------------------- - PersonId - Source - Field - Value - EffectiveDate - ------------------------------------------------------------------- - 123 - CIA - HomeAddress - 123 Cherry Ln - 2010-03-26 - - 123 - DMV - HomeAddress - 561 Stoney Rd - 2010-02-15 - - 123 - FBI - HomeAddress - 676 Lancas Dr - 2010-03-01 - ------------------------------------------------------------------- Reporting Table Person_Denormalized ---------------------------------------------------------------------------------------- - Id - Name - HomeAddress - HomeAddress_Confidence - HomeAddress_EffectiveDate - ---------------------------------------------------------------------------------------- - 123 - Joe Smith - 123 Cherry Ln - 0.713 - 2010-03-26 - ---------------------------------------------------------------------------------------- Normalized Design Person ------------------- - Id - Name - ------------------- - 123 - Joe Smith - ------------------- Person_HomeAddress ------------------------------------------------------ - PersonId - Source - Value - Effective Date - ------------------------------------------------------ - 123 - CIA - 123 Cherry Ln - 2010-03-26 - - 123 - DMV - 561 Stoney Rd - 2010-02-15 - - 123 - FBI - 676 Lancas Dr - 2010-03-01 - ------------------------------------------------------ The "Confidence" field here is generated using logic that cannot be expressed easily (if at all) using SQL so my most common operation besides inserting new values will be pulling ALL data about a person for all fields so I can generate the record for the reporting table. This is actually easier in the EAV model as I can do a single query. In the normalized design, I end up having to do 1 query per field to avoid a massive cartesian product from joining them all together.

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• Using SQLXML Bulk Load in .NET Environment - Error with One to Many relationship on Complex Type

  - by user331111

  Hi, I have an error when I am importing an XML file using SQLXMLBulkLoad, wondering if anyone could help. Error: Data mapping to column 'Attribute' was already found in the data. Make sure that no two schema definitions map to the same column Full files and details can be found here http://www.experts-exchange.com/Microsoft/Development/MS-SQL-Server/SQL-Server-2005/Q_26102239.html Exert from XSD: <sql:relationship name="EnvironmentDECAttributes" parent="Environment" parent-key="intEnvironmentID" child="DECAttributes" child-key="intEnvironmentID"/> <complexType name="Environment"> <sequence> <element name="ESANumber" minOccurs="0"> <annotation> <documentation> Environmentally Sensitive Area Number </documentation> </annotation> <simpleType> <restriction base="string"> <maxLength value="15"/> <whiteSpace value="collapse"/> </restriction> </simpleType> </element> <element name="Conditions" minOccurs="0" sql:relation="Conditions" sql:relationship="EnvironmentConditions"> <complexType> <sequence> <element name="Condition" type="vms:EnvironmentalConditions" minOccurs="0" maxOccurs="5"/> </sequence> </complexType> </element> <element name="DECDistrict" minOccurs="0"> <annotation> <documentation> Department of Environment &amp; Conservation District </documentation> </annotation> <simpleType> <restriction base="string"> <maxLength value="31"/> <whiteSpace value="collapse"/> </restriction> </simpleType> </element> <element name="DECAttributes" minOccurs="0" maxOccurs="1" sql:relation="DECAttributes" sql:relationship="EnvironmentDECAttributes"> <complexType> <sequence> <element name="Attribute" type="vms:DECAttributes" minOccurs="0" maxOccurs="unbounded" sql:field="Attribute"> <annotation> <documentation> Department of Environment &amp; Conservation attributes. </documentation> </annotation> </element> </sequence> </complexType> </element> </sequence> </complexType> Exert from XML: <Environment> <DECAttributes> <Attribute>WA</Attribute> <Attribute>SA</Attribute> </DECAttributes> </Environment> Any help/ comments would be appreciated Thanks C

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• 500 Internal Server Error with PHP application

  - by James

  I have written a PHP application using Windows and XAMPP. I've been trying to run it on Ubuntu 10.10 with Lighttpd 1.4.26. Parts of the application work fine, but whenever I try to log in, I get a 500 - Internal Server Error page. The only thing that shows up in /var/log/lighttpd/error.log is 2011-02-25 13:43:13: (mod_fastcgi.c.2582) unexpected end-of-file (perhaps the fastcgi process died): pid: 1169 socket: unix:/tmp/php.socket-0 2011-02-25 13:43:13: (mod_fastcgi.c.3367) response not received, request sent: 1596 on socket: unix:/tmp/php.socket-0 for /~denton/customer-facing-portal/index.php?, closing connection If I had any output whatsoever from PHP, this would be a lot easier to debug. Any ideas on how to get some? Here is my /etc/lighttpd/lighttpd.conf file: # Debian lighttpd configuration file # ############ Options you really have to take care of #################### ## modules to load server.modules = ( "mod_alias", "mod_compress", # "mod_rewrite", # "mod_redirect", # "mod_usertrack", # "mod_expire", # "mod_flv_streaming", # "mod_evasive", "mod_setenv" ) ## a static document-root, for virtual-hosting take look at the ## server.virtual-* options server.document-root = "/var/www/" ## where to upload files to, purged daily. server.upload-dirs = ( "/var/cache/lighttpd/uploads" ) ## where to send error-messages to server.errorlog = "/var/log/lighttpd/error.log" ## files to check for if .../ is requested index-file.names = ( "index.php", "index.html", "index.htm", "default.htm", "index.lighttpd.html" ) ## Use the "Content-Type" extended attribute to obtain mime type if possible # mimetype.use-xattr = "enable" ## # which extensions should not be handle via static-file transfer # # .php, .pl, .fcgi are most often handled by mod_fastcgi or mod_cgi static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" ) ######### Options that are good to be but not neccesary to be changed ####### ## Use ipv6 only if available. (disabled for while, check #560837) #include_shell "/usr/share/lighttpd/use-ipv6.pl" ## bind to port (default: 80) # server.port = 81 ## bind to localhost only (default: all interfaces) ## server.bind = "localhost" ## error-handler for status 404 #server.error-handler-404 = "/error-handler.html" #server.error-handler-404 = "/error-handler.php" ## to help the rc.scripts server.pid-file = "/var/run/lighttpd.pid" ## ## Format: <errorfile-prefix><status>.html ## -> ..../status-404.html for 'File not found' #server.errorfile-prefix = "/var/www/" ## virtual directory listings dir-listing.encoding = "utf-8" server.dir-listing = "enable" ### only root can use these options # # chroot() to directory (default: no chroot() ) #server.chroot = "/" ## change uid to <uid> (default: don't change) server.username = "www-data" ## change gid to <gid> (default: don't change) server.groupname = "www-data" #### compress module compress.cache-dir = "/var/cache/lighttpd/compress/" compress.filetype = ("text/plain", "text/html", "application/x-javascript", "text/css") #### url handling modules (rewrite, redirect, access) # url.rewrite = ( "^/$" => "/server-status" ) # url.redirect = ( "^/wishlist/(.+)" => "http://www.123.org/$1" ) #### expire module # expire.url = ( "/buggy/" => "access 2 hours", "/asdhas/" => "access plus 1 seconds 2 minutes") #### external configuration files ## mimetype mapping include_shell "/usr/share/lighttpd/create-mime.assign.pl" ## load enabled configuration files, ## read /etc/lighttpd/conf-available/README first include_shell "/usr/share/lighttpd/include-conf-enabled.pl" ## Set environment variables setenv.add-environment = ( "DB_URL__DEMO" => "192.168.1.231", "DB_NAME_DEMO" => "demo", "DB_USER_DEMO" => "user", "DB_PASS_DEMO" => "password", "DB_AGENCY_DEMO" => "demo" ) Here is my /etc/php5/cgi/php.ini file (sans 1641 lines of comments): [PHP] register_long_arrays = Off short_open_tag = Off engine = On short_open_tag = Off asp_tags = Off precision = 14 y2k_compliance = On output_buffering = 4096 zlib.output_compression = Off implicit_flush = Off unserialize_callback_func = serialize_precision = 100 allow_call_time_pass_reference = Off safe_mode = Off safe_mode_gid = Off safe_mode_include_dir = safe_mode_exec_dir = safe_mode_allowed_env_vars = PHP_ safe_mode_protected_env_vars = LD_LIBRARY_PATH disable_functions = disable_classes = expose_php = On max_execution_time = 30 max_input_time = 60 memory_limit = 128M error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT display_errors = On display_startup_errors = On log_errors = On log_errors_max_len = 1024 ignore_repeated_errors = Off ignore_repeated_source = Off report_memleaks = On track_errors = On html_errors = On variables_order = "GPCS" request_order = "GP" register_globals = Off register_long_arrays = Off register_argc_argv = Off auto_globals_jit = On post_max_size = 8M magic_quotes_gpc = Off magic_quotes_runtime = Off magic_quotes_sybase = Off auto_prepend_file = auto_append_file = default_mimetype = "text/html" doc_root = user_dir = enable_dl = Off cgi.fix_pathinfo=1 file_uploads = On upload_max_filesize = 2M max_file_uploads = 20 allow_url_fopen = On allow_url_include = Off default_socket_timeout = 60 [Date] date.timezone = "America/Chicago" [filter] [iconv] [intl] [sqlite] [sqlite3] [Pcre] [Pdo] [Pdo_mysql] pdo_mysql.cache_size = 2000 pdo_mysql.default_socket= [Phar] [Syslog] define_syslog_variables = Off [mail function] SMTP = localhost smtp_port = 25 mail.add_x_header = On [SQL] sql.safe_mode = Off [ODBC] odbc.allow_persistent = On odbc.check_persistent = On odbc.max_persistent = -1 odbc.max_links = -1 odbc.defaultlrl = 4096 odbc.defaultbinmode = 1 [Interbase] ibase.allow_persistent = 1 ibase.max_persistent = -1 ibase.max_links = -1 ibase.timestampformat = "%Y-%m-%d %H:%M:%S" ibase.dateformat = "%Y-%m-%d" ibase.timeformat = "%H:%M:%S" [MySQL] mysql.allow_local_infile = On mysql.allow_persistent = On mysql.cache_size = 2000 mysql.max_persistent = -1 mysql.max_links = -1 mysql.default_port = mysql.default_socket = mysql.default_host = mysql.default_user = mysql.default_password = mysql.connect_timeout = 60 mysql.trace_mode = Off [MySQLi] mysqli.max_persistent = -1 mysqli.allow_persistent = On mysqli.max_links = -1 mysqli.cache_size = 2000 mysqli.default_port = 3306 mysqli.default_socket = mysqli.default_host = mysqli.default_user = mysqli.default_pw = mysqli.reconnect = Off [mysqlnd] mysqlnd.collect_statistics = On mysqlnd.collect_memory_statistics = Off [OCI8] [PostgresSQL] pgsql.allow_persistent = On pgsql.auto_reset_persistent = Off pgsql.max_persistent = -1 pgsql.max_links = -1 pgsql.ignore_notice = 0 pgsql.log_notice = 0 [Sybase-CT] sybct.allow_persistent = On sybct.max_persistent = -1 sybct.max_links = -1 sybct.min_server_severity = 10 sybct.min_client_severity = 10 [bcmath] bcmath.scale = 0 [browscap] [Session] session.save_handler = files session.use_cookies = 1 session.use_only_cookies = 1 session.name = PHPSESSID session.auto_start = 0 session.cookie_lifetime = 0 session.cookie_path = / session.cookie_domain = session.cookie_httponly = session.serialize_handler = php session.gc_probability = 1 session.gc_divisor = 1000 session.gc_maxlifetime = 1440 session.bug_compat_42 = Off session.bug_compat_warn = Off session.referer_check = session.entropy_length = 0 session.cache_limiter = nocache session.cache_expire = 180 session.use_trans_sid = 0 session.hash_function = 0 session.hash_bits_per_character = 5 url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry" [MSSQL] mssql.allow_persistent = On mssql.max_persistent = -1 mssql.max_links = -1 mssql.min_error_severity = 10 mssql.min_message_severity = 10 mssql.compatability_mode = Off mssql.secure_connection = Off [Assertion] [COM] [mbstring] [gd] [exif] [Tidy] tidy.clean_output = Off [soap] soap.wsdl_cache_enabled=1 soap.wsdl_cache_dir="/tmp" soap.wsdl_cache_ttl=86400 soap.wsdl_cache_limit = 5 [sysvshm] [ldap] ldap.max_links = -1 [mcrypt] [dba] Update: here is /etc/lighttpd/conf-enabled/15-fastcgi-php.conf As far as I know, it's just the default config file the Ubuntu package installed. ## FastCGI programs have the same functionality as CGI programs, ## but are considerably faster through lower interpreter startup ## time and socketed communication ## ## Documentation: /usr/share/doc/lighttpd-doc/fastcgi.txt.gz ## http://redmine.lighttpd.net/projects/lighttpd/wiki/Docs:ConfigurationOptions#mod_fastcgi-fastcgi ## Start an FastCGI server for php (needs the php5-cgi package) fastcgi.server += ( ".php" => (( "bin-path" => "/usr/bin/php-cgi", "socket" => "/tmp/php.socket", "max-procs" => 1, "idle-timeout" => 20, "bin-environment" => ( "PHP_FCGI_CHILDREN" => "4", "PHP_FCGI_MAX_REQUESTS" => "10000" ), "bin-copy-environment" => ( "PATH", "SHELL", "USER" ), "broken-scriptfilename" => "enable" )) )

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• Search engine solution for Django that actually works?

  - by prometheus

  The story so far: Decided to go with Xapian as search backend because it has all search-engine features I was looking for, knows about Unicode, stemming, has few dependencies and requires no bloated app-server installation on top of it. Tried Django and Haystack (plus xapian-haystack, the backend glue code to tie Haystack to Xapian) because it was advertised on quite some blogs as "working". Did not work. Neither django-haystack nor the xapian-haystack project provide a version combination that actually works together. MASTER from both projects yields an error from Xapian, so it's not stable at all. Haystack 1.0.1 and xapian-haystack 1.0.x/1.1.0 are not API-compatible. Plus, in a minimally working installation of Haystack 1.0.1 and xapian-haystack MASTER, any complex query yields zero results due to errors in either django-haystack or xapian-haystack (I double-verified this), maybe because the unit-tests actually test very simple cases, and no edge-cases at all. Tried Djapian. The source-code is riddled with spelling errors (mind you, in variable names, not comments), documentation is also riddled with ambiguities and outdated information that will never lead to a working installation. Not surprisingly, users rarely ask for features but how to get it working in the first place. Next on the plate: exploring Solr (installing a Java environment plus Tomcat gives me headaches, the machine is RAM- and CPU-constrained), or Lucene (slightly less headaches, but still). Before I proceed spending more time with a solution that might or might not work as advertised, I'd like to know: Did anyone ever get an actual, real-world search solution working in Django? I'm serious. I find it really frustrating reading about "large problems mostly solved", and then realizing that you will never get a working installation from the source-code because, actually, all bloggers dealing with those "mostly solved problems" never went past basic installation and copy-pasting the official tutorials. So here are the requirements: must be able to search for 10-100 terms in one query must handle + (term must be present) and - (term must not be present), AND/OR must handle arbitrary grouping (i.e. parentheses around AND/OR) must allow for Django-ORM filtering before or after fulltext-search (i.e. pre-/post-processing of results with the full set of filters that Django knows about) alternatively, there must be a facility to bulk-fetch the result set and transform it into a QuerySet should be light on the machine, so preferably no humongous JVM and Java-based app-server installation Is there anything out there that does this? I'm not interested in anecdotal evidence, or references to some blog posts that claim it should be working. I'd like to hear from someone who actually has a fully-functional setup working in the real world, under real conditions, with real queries. EDIT: Let me repeat again that I'm not so much interested in anecdotal evidence that someone, somewhere has a somewhat running installation working with unspecified properties. I already went there, I read all the blog posts, mailing lists, I contacted the authors, but when it came to actual implementation of real-world scenarios, nothing ever worked as advertised. Also, and a user below brought that point up as well, considering the TCO of any project, I'm definitely not interested in hearing that someone, somewhere was able to pull it off once a vendor parachuted in an unknown number of specialists to monkey-patch the whole installation with specific domain-knowledge that's documented nowhere. So, please, if you claim you have a working installation that actually satisfies minimum requirements for a full-fledged search (see requirements above), please provide the following so that we can all benefit from a search solution for Django that actually solves the problem: exact Linux distribution, release version, exact release version of Haystack (or equivalent) and release version of search backend, exact release version of the search engine publicly (!) available documentation how to set up all components exactly in the way that your installation was set up such that the minimal requirements above are met. Thank you.

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• Search engine solution for Django that actually works?

  - by prometheus

  The story so far: Decided to go with Xapian as search backend because it has all search-engine features I was looking for, knows about Unicode, stemming, has few dependencies and requires no bloated app-server installation on top of it. Tried Django and Haystack (plus xapian-haystack, the backend glue code to tie Haystack to Xapian) because it was advertised on quite some blogs as "working". Did not work. Neither django-haystack nor the xapian-haystack project provide a version combination that actually works together. MASTER from both projects yields an error from Xapian, so it's not stable at all. Haystack 1.0.1 and xapian-haystack 1.0.x/1.1.0 are not API-compatible. Plus, in a minimally working installation of Haystack 1.0.1 and xapian-haystack MASTER, any complex query yields zero results due to errors in either django-haystack or xapian-haystack (I double-verified this), maybe because the unit-tests actually test very simple cases, and no edge-cases at all. Tried Djapian. The source-code is riddled with spelling errors (mind you, in variable names, not comments), documentation is also riddled with ambiguities and outdated information that will never lead to a working installation. Not surprisingly, users rarely ask for features but how to get it working in the first place. Next on the plate: exploring Solr (installing a Java environment plus Tomcat gives me headaches, the machine is RAM- and CPU-constrained), or Lucene (slightly less headaches, but still). Before I proceed spending more time with a solution that might or might not work as advertised, I'd like to know: Did anyone ever get an actual, real-world search solution working in Django? I'm serious. I find it really frustrating reading about "large problems mostly solved", and then realizing that you will never get a working installation from the source-code because, actually, all bloggers dealing with those "mostly solved problems" never went past basic installation and copy-pasting the official tutorials. So here are the requirements: must be able to search for 10-100 terms in one query must handle + (term must be present) and - (term must not be present), AND/OR must handle arbitrary grouping (i.e. parentheses around AND/OR) must allow for Django-ORM filtering before or after fulltext-search (i.e. pre-/post-processing of results with the full set of filters that Django knows about) alternatively, there must be a facility to bulk-fetch the result set and transform it into a QuerySet should be light on the machine, so preferably no humongous JVM and Java-based app-server installation Is there anything out there that does this? I'm not interested in anecdotal evidence, or references to some blog posts that claim it should be working. I'd like to hear from someone who actually has a fully-functional setup working in the real world, under real conditions, with real queries. EDIT: Let me repeat again that I'm not so much interested in anecdotal evidence that someone, somewhere has a somewhat running installation working with unspecified properties. I already went there, I read all the blog posts, mailing lists, I contacted the authors, but when it came to actual implementation of real-world scenarios, nothing ever worked as advertised. Also, and a user below brought that point up as well, considering the TCO of any project, I'm definitely not interested in hearing that someone, somewhere was able to pull it off once a vendor parachuted in an unknown number of specialists to monkey-patch the whole installation with specific domain-knowledge that's documented nowhere. So, please, if you claim you have a working installation that actually satisfies minimum requirements for a full-fledged search (see requirements above), please provide the following so that we can all benefit from a search solution for Django that actually solves the problem: exact Linux distribution, release version, exact release version of Haystack (or equivalent) and release version of search backend, exact release version of the search engine publicly (!) available documentation how to set up all components exactly in the way that your installation was set up such that the minimal requirements above are met. Thank you.

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• Error when pushing to Heroku - StatementInvalid - Ruby on Rails

  - by bgadoci

  I am trying to deploy my first rails app to Heroku and seem to be having a problem. After git push heroku master I get an error saying that relation "tags does not exist. I understand that without knowledge of my application it will be hard to help but I am wondering if someone can point me in the right direction. I have checked the schema.rb file and also been over all my migrations and there doesn't seem to be a problem there. The error message lead me to believe that I left something out of my routes.rb file but can't seem to find anything there either. Perhaps just some help deciphering this message. Processing PostsController#index (for 99.7.50.140 at 2010-04-21 12:28:59) [GET] ActiveRecord::StatementInvalid (PGError: ERROR: relation "tags" does not exist : SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull FROM pg_attribute a LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum WHERE a.attrelid = '"tags"'::regclass AND a.attnum > 0 AND NOT a.attisdropped ORDER BY a.attnum ): app/controllers/posts_controller.rb:9:in `index' /home/heroku_rack/lib/static_assets.rb:9:in `call' /home/heroku_rack/lib/last_access.rb:25:in `call' /home/heroku_rack/lib/date_header.rb:14:in `call' thin (1.0.1) lib/thin/connection.rb:80:in `pre_process' thin (1.0.1) lib/thin/connection.rb:78:in `catch' thin (1.0.1) lib/thin/connection.rb:78:in `pre_process' thin (1.0.1) lib/thin/connection.rb:57:in `process' thin (1.0.1) lib/thin/connection.rb:42:in `receive_data' eventmachine (0.12.6) lib/eventmachine.rb:240:in `run_machine' eventmachine (0.12.6) lib/eventmachine.rb:240:in `run' thin (1.0.1) lib/thin/backends/base.rb:57:in `start' thin (1.0.1) lib/thin/server.rb:150:in `start' thin (1.0.1) lib/thin/controllers/controller.rb:80:in `start' thin (1.0.1) lib/thin/runner.rb:173:in `send' thin (1.0.1) lib/thin/runner.rb:173:in `run_command' thin (1.0.1) lib/thin/runner.rb:139:in `run!' thin (1.0.1) bin/thin:6 /usr/local/bin/thin:20:in `load' /usr/local/bin/thin:20 Also, here is my routes.rb file if that helps at all. ActionController::Routing::Routes.draw do |map| map.resources :ugtags map.resources :wysihat_files map.resources :users map.resources :votes map.resources :votes, :belongs_to => :user map.resources :tags, :belongs_to => :user map.resources :ugtags, :belongs_to => :user map.resources :posts, :collection => {:auto_complete_for_tag_tag_name => :get } map.resources :posts, :sessions map.resources :posts, :has_many => :comments map.resources :posts, :has_many => :tags map.resources :posts, :has_many => :ugtags map.resources :posts, :has_many => :votes map.resources :posts, :belongs_to => :user map.resources :tags, :collection => {:auto_complete_for_tag_tag_name => :get } map.resources :ugtags, :collection => {:auto_complete_for_ugtag_ugctag_name => :get } map.login 'login', :controller => 'sessions', :action => 'new' map.logout 'logout', :controller => 'sessions', :action => 'destroy' map.root :controller => "posts" map.connect ':controller/:action/:id' map.connect ':controller/:action/:id.:format' end

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• Managing highly repetitive code and documentation in Java

  - by polygenelubricants

  Highly repetitive code is generally a bad thing, and there are design patterns that can help minimize this. However, sometimes it's simply inevitable due to the constraints of the language itself. Take the following example from java.util.Arrays: /** * Assigns the specified long value to each element of the specified * range of the specified array of longs. The range to be filled * extends from index <tt>fromIndex</tt>, inclusive, to index * <tt>toIndex</tt>, exclusive. (If <tt>fromIndex==toIndex</tt>, the * range to be filled is empty.) * * @param a the array to be filled * @param fromIndex the index of the first element (inclusive) to be * filled with the specified value * @param toIndex the index of the last element (exclusive) to be * filled with the specified value * @param val the value to be stored in all elements of the array * @throws IllegalArgumentException if <tt>fromIndex &gt; toIndex</tt> * @throws ArrayIndexOutOfBoundsException if <tt>fromIndex &lt; 0</tt> or * <tt>toIndex &gt; a.length</tt> */ public static void fill(long[] a, int fromIndex, int toIndex, long val) { rangeCheck(a.length, fromIndex, toIndex); for (int i=fromIndex; i<toIndex; i++) a[i] = val; } The above snippet appears in the source code 8 times, with very little variation in the documentation/method signature but exactly the same method body, one for each of the root array types int[], short[], char[], byte[], boolean[], double[], float[], and Object[]. I believe that unless one resorts to reflection (which is an entirely different subject in itself), this repetition is inevitable. I understand that as a utility class, such high concentration of repetitive Java code is highly atypical, but even with the best practice, repetition does happen! Refactoring doesn't always work because it's not always possible (the obvious case is when the repetition is in the documentation). Obviously maintaining this source code is a nightmare. A slight typo in the documentation, or a minor bug in the implementation, is multiplied by however many repetitions was made. In fact, the best example happens to involve this exact class: Google Research Blog - Extra, Extra - Read All About It: Nearly All Binary Searches and Mergesorts are Broken (by Joshua Bloch, Software Engineer) The bug is a surprisingly subtle one, occurring in what many thought to be just a simple and straightforward algorithm. // int mid =(low + high) / 2; // the bug int mid = (low + high) >>> 1; // the fix The above line appears 11 times in the source code! So my questions are: How are these kinds of repetitive Java code/documentation handled in practice? How are they developed, maintained, and tested? Do you start with "the original", and make it as mature as possible, and then copy and paste as necessary and hope you didn't make a mistake? And if you did make a mistake in the original, then just fix it everywhere, unless you're comfortable with deleting the copies and repeating the whole replication process? And you apply this same process for the testing code as well? Would Java benefit from some sort of limited-use source code preprocessing for this kind of thing? Perhaps Sun has their own preprocessor to help write, maintain, document and test these kind of repetitive library code? A comment requested another example, so I pulled this one from Google Collections: com.google.common.base.Predicates lines 276-310 (AndPredicate) vs lines 312-346 (OrPredicate). The source for these two classes are identical, except for: AndPredicate vs OrPredicate (each appears 5 times in its class) "And(" vs Or(" (in the respective toString() methods) #and vs #or (in the @see Javadoc comments) true vs false (in apply; ! can be rewritten out of the expression) -1 /* all bits on */ vs 0 /* all bits off */ in hashCode() &= vs |= in hashCode()

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• Getting Custom NSCell with NSButtonCell instance to handle mouse click/mouse events

  - by sidha

  OK I'm really stumped on this one. I want to make a checkbox with a NSTextFieldCell combined together. It's important that the checkbox goes ON if the mouse hits the box, NOT the text. I've accomplished this, more or less, but the issue is receiving the mouse event because I click one checkbox in a row, but ALL of them turn to NSOnState. I will show what I've done and my various failed attempts in order to get this to work. So this is how I've done it so far: header: @interface MyCheckboxCellToo : NSTextFieldCell { NSButtonCell *_checkboxCell; } implementation: - (NSUInteger)hitTestForEvent:(NSEvent *)event inRect:(NSRect)cellFrame ofView:(NSView *)controlView { NSPoint point = [controlView convertPoint:[event locationInWindow] fromView:nil]; NSLog(@"%@", NSStringFromPoint(point)); NSRect checkFrame; NSDivideRect(cellFrame, &checkFrame, &cellFrame, cellFrame.size.height/*3 + [[_checkboxCell image] size].width*/, NSMinXEdge); if (NSMouseInRect(point, checkFrame, [controlView isFlipped])) { // the checkbox, or the small region around it, was hit. so let's flip the state NSCellStateValue checkState = ([_checkboxCell state] == NSOnState) ? NSOffState:NSOnState; [self setState:checkState]; [_checkboxCell setState:checkState]; [controlView setNeedsDisplay:YES]; return NSCellHitTrackableArea; } return [super hitTestForEvent:event inRect:cellFrame ofView:controlView]; } I know I probably shouldn't be doing: [self setState:checkState]; [_checkboxCell setState:checkState]; [controlView setNeedsDisplay:YES]; in there... because the result is that EVERY checkbox in every goes to NSOnState. Is this because cells are re-used? How come the ImageAndTextCell can have different images in the same tableview? How do I handle the mouse event? I have tried: - (BOOL)trackMouse:(NSEvent *)theEvent inRect:(NSRect)cellFrame ofView:(NSView *)controlView untilMouseUp:(BOOL)untilMouseUp { NSLog(@"%s %@", _cmd, theEvent); return [_checkboxCell trackMouse:theEvent inRect:cellFrame ofView:controlView untilMouseUp:untilMouseUp]; // return YES; // return [super trackMouse:theEvent inRect:cellFrame ofView:controlView untilMouseUp:untilMouseUp]; } - (BOOL)startTrackingAt:(NSPoint)startPoint inView:(NSView *)controlView { NSLog(@"%s %@", _cmd, NSStringFromPoint(startPoint)); return [super startTrackingAt:startPoint inView:controlView]; } - (BOOL)continueTracking:(NSPoint)lastPoint at:(NSPoint)currentPoint inView:(NSView *)controlView { NSLog(@"%s %@", _cmd, NSStringFromPoint(currentPoint)); return [super continueTracking:lastPoint at:currentPoint inView:controlView]; } - (void)stopTracking:(NSPoint)lastPoint at:(NSPoint)stopPoint inView:(NSView *)controlView mouseIsUp:(BOOL)flag { NSLog(@"%s %d %@", _cmd, flag, NSStringFromPoint(stopPoint)); } trackMouse: ... DOES gets called but startTrackingAt:..., continueTracking:..., and stopTracking:.... DO NOT get called when I click on the checkbox "hit area" in trackMouse:... I have tried return [_checkboxCell trackMouse:theEvent inRect:cellFrame ofView:controlView untilMouseUp:untilMouseUp]; and return [super trackMouse:theEvent inRect:cellFrame ofView:controlView untilMouseUp:untilMouseUp]; and neither seems to result in the mouse event being handled by the checkbox. How do I get that single checkbox to go NSOnState? I know I'm pretty close but after a lot of doc reading and google searching I haven't been successful at solving this. suggestions and comments welcome.. OK here is a bit more to show creation and destruction of the object.. - (id)init { if ((self = [super init])) { _checkboxCell = [[NSButtonCell alloc] init]; [_checkboxCell setButtonType:NSSwitchButton]; [_checkboxCell setTitle:@""]; [_checkboxCell setTarget:self]; [_checkboxCell setImagePosition:NSImageLeft]; [_checkboxCell setControlSize:NSRegularControlSize]; } return self; } - copyWithZone:(NSZone *)zone { MyCheckboxCellToo *cell = (MyCheckboxCellToo *)[super copyWithZone:zone]; cell->_checkboxCell = [_checkboxCell copyWithZone:zone]; return cell; } - (void)dealloc { [_checkboxCell release]; [super dealloc]; }

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• How can I read the verbose output from a Cmdlet in C# using Exchange Powershell

  - by mrkeith

  Environment: Exchange 2007 sp3 (2003 sp2 mixed mode) Visual Studio 2008, .Net 3.5 Hello, I'm working with an Exchange powershell move-mailbox cmdlet and have noted when I do so from the Exchange Management shell (using the Verbose switch) there is a ton of real-time information provided. To provide a little context, I'm attempting to create a UI application that moves mailboxes similarly to the Exchange Management Console but desire to support an input file and specific server/database destinations for each entry (and threading). Here's roughly what I have at present but I'm not sure if there is an event I need to register for or what... And to be clear, I desire to get this information in real-time so I may update my UI to reflect what's occurring in the move sequence for the appropriate user (pretty much like the native functionality offered in the Management Console). And in case you are wondering, the reason why I'm not content with the Management Console functionality is, I have an algorithm which I'm using to balance users depending on storage limit, Blackberry use, journaling, exception mailbox size etc which demands user be mapped to specific locations... and I do not desire to create many/several move groups for each common destination or to hunt for lists of users individually through the management console UI. I can not seem to find any good documentation or examples of how to tie into reading the verbose messages that are provided within the console using C# (I see value in being able to read this kind of information in many different scenarios). I've explored the Invoke and InvokeAsync methods and the StateChanged & DataReady events but none of these seem to provide the information (verbose comments) that I'm after. Any direction or examples that can be provided will be very appreciated! A code sample which is little more than how I would ordinarily call any other powershell command follows: // config to use ExMgmt shell, create runspace and open it RunspaceConfiguration rsConfig = RunspaceConfiguration.Create(); PSSnapInException snapInException = null; PSSnapInInfo info = rsConfig.AddPSSnapIn("Microsoft.Exchange.Management.PowerShell.Admin", out snapInException); if (snapInException != null) throw snapInException; Runspace runspace = RunspaceFactory.CreateRunspace(rsConfig); try { runspace.Open(); // create a pipeline and feed script text Pipeline pipeline = runspace.CreatePipeline(); string targetDatabase = @"myServer\myStorageGroup\myDB"; string mbxOwner = "[email protected]"; Command myMoveMailbox = new Command("Move-Mailbox", false, false); myMoveMailbox.Parameters.Add("Identity", mbxOwner); myMoveMailbox.Parameters.Add("TargetDatabase", targetDatabase); myMoveMailbox.Parameters.Add("Verbose"); myMoveMailbox.Parameters.Add("ValidateOnly"); myMoveMailbox.Parameters.Add("Confirm", false); pipeline.Commands.Add(myMoveMailbox); System.Collections.ObjectModel.Collection output = null; // these next few lines that are commented out are where I've tried // registering for events and calling asynchronously but this doesn't // seem to get me anywhere closer // //pipeline.StateChanged += new EventHandler(pipeline_StateChanged); //pipeline.Output.DataReady += new EventHandler(Output_DataReady); //pipeline.InvokeAsync(); //pipeline.Input.Close(); //return; tried these variations that are commented out but none seem to be useful output = pipeline.Invoke(); // Check for errors in the pipeline and throw an exception if necessary if (pipeline.Error != null && pipeline.Error.Count 0) { StringBuilder pipelineError = new StringBuilder(); pipelineError.AppendFormat("Error calling Test() Cmdlet. "); foreach (object item in pipeline.Error.ReadToEnd()) pipelineError.AppendFormat("{0}\n", item.ToString()); throw new Exception(pipelineError.ToString()); } foreach (PSObject psObject in output) { // blah, blah, blah // this is normally where I would read details about a particular PS command // but really pertains to a command once it finishes and has nothing to do with // the verbose messages that I'm after... since this part of the methods pertains // to the after-effects of a command having run, I'm suspecting I need to look to // the asynch invoke method but am not certain or knowing how. } } finally { runspace.Close(); } Thanks! Keith

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• What are the Open Source alternatives to WPF/XAML?

  - by Evan Plaice

  If we've learned anything from HTML/CSS it's that, declarative languages (like XML) work best to describe User Interfaces because: It's easy to build code preprocessors that can template the code effectively. The code is in a well defined well structured (ideally) format so it's easy to parse. The technology to effectively parse or crawl an XML based source file already exists. The UIs scripted code becomes much simpler and easier to understand. It simple enough that designers are able to design the interface themselves. Programmers suck at creating UIs so it should be made easy enough for designers. I recently took a look at the meat of a WPF application (ie. the XAML) and it looks surprisingly familiar to the declarative language style used in HTML. It's apparent to me that the current state of desktop UI development is largely fractionalized, otherwise there wouldn't be so much duplicated effort in the domain of graphical user interface design (IE. GTK, XUL, Qt, Winforms, WPF, etc). There are 45 GUI platforms for Python alone It's seems reasonable to me that there should be a general purpose, open source, standardized, platform independent, markup language for designing desktop GUIs. Much like what the W3C made HTML/CSS into. WPF, or more specifically XAML seems like a pretty likely step in the right direction. Now that the 'browser wars' are over should we look forward to a future of 'desktop gui wars?' Note: This topic is relatively subjective in the attempt to be 'future-thinking.' I think that desktop GUI development in its current state sucks ((really)hard) and, even though WPF is still in it's infancy, it presents a likely solution to the problem. Update: Thanks a lot for the info, keep it comin'. Here's are the options I've gathered from the comments and answers. GladeXML Editor: Glade Interface Designer OS Platforms: All GUI Platform: GTK+ Languages: C (libglade), C++, C# (Glade#), Python, Ada, Pike, Perl, PHP, Eiffel, Ruby XRC (XML Resource) Editors: wxGlade, XRCed, wxDesigner, DialogBlocks (non-free) OS Platforms: All GUI Platform: wxWidgets Languages: C++, Python (wxPython), Perl (wxPerl), .NET (wx.NET) XML based formats that are either not free, not cross-platform, or language specific XUL Editor: Any basic text editor OS Platforms: Any OS running a browser that supports XUL GUI Platform: Gecko Engine? Languages: C++, Python, Ruby as plugin languages not base languages Note: I'm not sure if XUL deserves mentioning in this list because it's less of a desktop GUI language and more of a make-webapps-run-on-the-desktop language. Plus, it requires a browser to run. IE, it's 'DHTML for the desktop.' CookSwing Editor: Eclipse via WindowBuilder, NetBeans 5.0 (non-free) via Swing GUI Builder aka Matisse OS Platforms: All GUI Platform: Java Languages: Java only XAML (Moonlight) Editor: MonoDevelop OS Platforms: Linux and other Unix/X11 based OSes only GUI Platforms: GTK+ Languages: .NET Note: XAML is not a pure Open Source format because Microsoft controls its terms of use including the right to change the terms at any time. Moonlight can not legally be made to run on Windows or Mac. In addition, the only platform that is exempt from legal action is Novell. See this for a full description of what I mean.

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