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ArchBeat Link-o-Rama for 2012-04-13

- by Bob Rhubart

TGIF! Mobile Commerce and Engagement Stats | @digbymobile www.digby.com Solution architects take note: mobile is shaping your future. OTN Architect Day - Reston, VA - May 16 www.oracle.com The live one-day event in Reston, VA brings together architects from a broad range of disciplines and domains to share insights and expertise in the use of Oracle technologies to meet the challenges today’s solution architects regularly face. Registration is free, but seating is limited. BPEL 11.1.1.6 Certified for Prebuilt E-Business Suite 12.1.3 SOA Integrations | Steven Chan blogs.oracle.com A load of links and useful information from Steven Chan. OTN: There's an App for That blogs.oracle.com Get your OTN developer community content on the go with this free app for your mobile device. Five Best Practices for Going Mobile | John Brunswick blogs.oracle.com John Brunswick offers some strategic considerations for delivering products, services, and information to mobile constituents. Why My Slime Mold is Better than Your Hadoop Cluster | Todd Hoff highscalability.com What architects can learn from naturally occurring, self-propelled goop. ADF version of "Modern" dialog windows | Martin Deh blogs.oracle.com Martin Deh describes how to use OOTB ADF components and CSS3 style elements to create iOS-style UI elements. Perfect fit: The cloud and SOA -- but don't call it that | David Linthicum www.infoworld.com "The fact of the matter," says David Linthicum, "is that the best and most effective way to move to the cloud for an enterprise whose technology platforms reflect decades of enterprise IT neglect is to use SOA as an approach and process. Just don't call it 'SOA.'" Thought for the Day "There are two major products that come out of Berkeley: LSD and UNIX. We don't believe this to be a coincidence." — Jeremy S. Anderson

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Kubuntu 11.04 bad experience, Gimp crashes and other bugs

- by giowck

I installed Kubuntu 11.04 64bit today. First let me expose some issues, this is not a rant, just some observations on Kubuntu 11.04 :) Flash doesn't work. The package "flashplugin-installer" was installed by rekonq. But still no flash. Additional Drivers (jockey-kde) doesn't show up automatically after first login. I tried to delete a large file (19,2 GB), an error appeared: "Please empty the trash first, no more space available" or something like that, but you know what? My trash was empty! (Then I found in Dolphin the settings to increment the max size of the trash). Amarok has no play/pause/forward/back buttons, only after changing settings to show those buttons on the top bar. GTK applications like ubuntu software center, inkscape... are in english, but my default language is "german". Only gimp allows to install the "de" language pack. The numblock turns off after each restart. In the KDE Control Center, the "remember last state" of numblock is set. But this is not working. I had some crashes: Nepomuk, Policy-kit, plasma-workspace and gimp. But now to the important stuff. I really need Gimp to work. After starting it, I get a crash: giowck@giowck-desktop:~$ gimp (gimp:1899): GLib-WARNING **: /build/buildd/glib2.0-2.28.6/./glib/goption.c:2132: ignoring no-arg, optional-arg or filename flags (8) on option of type 0 Speicherzugriffsfehler (in English: "Memory error") What can I do to run Gimp? Thanks

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How to get same cookie to control two different folders on same site.

- by Incandescent

I am using the below cookie javascript to run a background color changer on my site. I want to also use it for the background color of my forum which is in a separate folder (http://lightbulbchoice.com/forum). I currently have it working on both the site and forum but you have to set each separately, i.e., each is setting it's own cookie. How do I get the forum to locate the main site cookie and not set it's own? // Cookie Functions - Second Helping (21-Jan-96) // Written by: Bill Dortch, hIdaho Design // The following functions were released to the public domain by him. function getCookieVal (offset) { var endstr = document.cookie.indexOf (";", offset); if (endstr == -1) endstr = document.cookie.length; return unescape(document.cookie.substring(offset, endstr)); } function GetCookie (name) { var arg = name + "="; var alen = arg.length; var clen = document.cookie.length; var i = 0; while (i < clen) { var j = i + alen; if (document.cookie.substring(i, j) == arg) return getCookieVal (j); i = document.cookie.indexOf(" ", i) + 1; if (i == 0) break; } return null; } function SetCookie (name, value) { var argv = SetCookie.arguments; var argc = SetCookie.arguments.length; var expires = (argc > 2) ? argv[2] : null; var path = (argc > 3) ? argv[3] : null; var domain = (argc > 4) ? argv[4] : null; var secure = (argc > 5) ? argv[5] : false; document.cookie = name + "=" + escape (value) + ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + ((path == null) ? "" : ("; path=" + path)) + ((domain == null) ? "" : ("; domain=" + domain)) + ((secure == true) ? "; secure" : ""); } // --> </script>

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How can I set external monitor as default?

- by iJeeves

I have connected an external monitor to my laptop through HDMI. Currently either my Desktop is getting extended to the external monitor (with native resolution) or low resolution on both when I choose "Same Image in both". How can I ensure that the external monitor is used by default and the laptop monitor just blanks. I generated the xorg.conf file by doing: X -configure The following is the content of xorg.conf.new file generated in my user folder. Should I copy this anywhere? Should I edit the contents? Section "ServerLayout" Identifier "X.org Configured" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "Files" ModulePath "/usr/lib/xorg/modules" FontPath "/usr/share/fonts/X11/misc" FontPath "/usr/share/fonts/X11/cyrillic" FontPath "/usr/share/fonts/X11/100dpi/:unscaled" FontPath "/usr/share/fonts/X11/75dpi/:unscaled" FontPath "/usr/share/fonts/X11/Type1" FontPath "/usr/share/fonts/X11/100dpi" FontPath "/usr/share/fonts/X11/75dpi" FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" FontPath "built-ins" EndSection Section "Module" Load "glx" Load "dri2" Load "record" Load "extmod" Load "dbe" Load "dri" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" EndSection Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/input/mice" Option "ZAxisMapping" "4 5 6 7" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Monitor Vendor" ModelName "Monitor Model" EndSection Section "Device" ### Available Driver options are:- ### Values: : integer, : float, : "True"/"False", ### : "String", : " Hz/kHz/MHz", ### : "%" ### [arg]: arg optional #Option "NoAccel" # [] #Option "SWcursor" # [] #Option "ColorKey" # #Option "CacheLines" # #Option "Dac6Bit" # [] #Option "DRI" # [] #Option "NoDDC" # [] #Option "ShowCache" # [] #Option "XvMCSurfaces" # #Option "PageFlip" # [] Identifier "Card0" Driver "intel" BusID "PCI:0:2:0" EndSection Section "Screen" Identifier "Screen0" Device "Card0" Monitor "Monitor0" SubSection "Display" Viewport 0 0 Depth 1 EndSubSection SubSection "Display" Viewport 0 0 Depth 4 EndSubSection SubSection "Display" Viewport 0 0 Depth 8 EndSubSection SubSection "Display" Viewport 0 0 Depth 15 EndSubSection SubSection "Display" Viewport 0 0 Depth 16 EndSubSection SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection

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500 Internal Server Error when setting up Apache on Ubuntu+Django

- by ApacheQ

I tried with Apache on ubuntu 9.04 and get the same error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, webmaster@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. And my apache/error.log is: [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] ServerName: 'sapint2' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] DocumentRoot: '/etc/apache2/htdocs' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] URI: '/' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Location: '/' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Directory: None [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Filename: '/etc/apache2/htdocs' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] PathInfo: '/' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Traceback (most recent call last): [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/lib/python2.7/dist-packages/mod_python/importer.py", line 1537, in HandlerDispatch\n default=default_handler, arg=req, silent=hlist.silent) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/lib/python2.7/dist-packages/mod_python/importer.py", line 1229, in _process_target\n result = _execute_target(config, req, object, arg) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/lib/python2.7/dist-packages/mod_python/importer.py", line 1128, in _execute_target\n result = object(arg) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/modpython.py", line 180, in handler\n return ModPythonHandler()(req) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/modpython.py", line 142, in call\n self.load_middleware() [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 45, in load_middleware\n mod = import_module(mw_module) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module\n import(name) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/contrib/sessions/middleware.py", line 4, in \n from django.utils.cache import patch_vary_headers [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/utils/cache.py", line 25, in \n from django.core.cache import get_cache [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/cache/init.py", line 187, in \n cache = get_cache(DEFAULT_CACHE_ALIAS) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/cache/init.py", line 179, in get_cache\n cache = backend_cls(location, params) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/cache/backends/memcached.py", line 139, in init\n "Memcached cache backend requires either the 'memcache' or 'cmemcache' library" [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] InvalidCacheBackendError: Memcached cache backend requires either the 'memcache' or 'cmemcache' library [Sat Oct 06 09:51:30 2012] [notice] caught SIGTERM, shutting down [Sat Oct 06 09:51:31 2012] [notice] mod_python: Creating 8 session mutexes based on 150 max processes and 0 max threads. [Sat Oct 06 09:51:31 2012] [notice] mod_python: using mutex_directory /tmp [Sat Oct 06 09:51:31 2012] [notice] Apache/2.2.17 (Ubuntu) PHP/5.3.5-1ubuntu7.11 with Suhosin-Patch mod_python/3.3.1 Python/2.7.1+ mod_wsgi/3.3 configured -- resuming normal operations I need some help Thanks

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Using ant to register plugins and deploy metadata xmls

- by Gaurav.gg.goyal

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times","serif"; mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";} Ant can be used to register plugins directly to MDS. Following is the ant script to register plugin zip:<target name="register_plugin" depends="compile_package"> <echo> Register Plugin : ${plugin.base}/${project.name}.zip</echo> <java classname="oracle.iam.platformservice.utils.PluginUtility" classpathref="classpath" fork="true"> <sysproperty key="XL.HomeDir" value="${oim.home.server}"/> <sysproperty key="OIM.Username" value="${oim.username}"/> <sysproperty key="OIM.UserPassword" value="${oim.password}"/> <sysproperty key="ServerURL" value="${oim.url}"/> <sysproperty key="PluginZipToRegister" value="${plugin.base}/${project.name}.zip"/> <sysproperty key="java.security.auth.login.config" value="${oim.home}\designconsole\config\authwl.conf"/> <arg value="REGISTER"/> <redirector error="redirector.err" errorproperty="redirector.err" output="redirector.out" outputproperty="redirector.out"/> </java> <copy file="${plugin.base}/${project.name}.zip" todir="${oim.home.server}\plugins"/></target> This script requires following properties: plugin.base project.name oim.home.server oim.username oim.password You can either define a properties file for these properties or define them directly in build.xml. Build.properties will look like: # Set the OIM home here oim.home=C:/Oracle/Middleware02/Oracle_IDM # Set the weblogic home here wls.home=C:/Oracle/Middleware02/wlserver_10.3 OIM.ServerName=oim_server1 # e.g.: used in building the jar and zip files #Note : no spaces in the project name project.name=ScheduledTask_Sample #Set the oim username oim.username=xelsysadm # set the oim password oim.password=Welcome1 WL.Username=weblogic WL.UserPassword=weblogic1 #set the oim URL here oim.url=t3://localhost:14000 WL.url=t3://localhost:7001 #Location from where the metadata files are pickedup for MDS import metadata.location=C:/Project /src/ScheduledTask_Sample /metaxml/ Following is the ANT script to import metadata xml: <target name="ImportMetadata"> <echo> Preparing for MDS xmls Upload...</echo> <copy file="${oim.home}/bin/weblogic.properties" todir="."/> <replaceregexp file="weblogic.properties" match="wls_servername=(.*)" replace="wls_servername=${OIM.ServerName}" byline="true"/> <replaceregexp file="weblogic.properties" match="application_name=(.*)" replace="application_name=OIMMetadata" byline="true"/> <replaceregexp file="weblogic.properties" match="metadata_from_loc=(.*)" replace="metadata_from_loc=${metadata.location}" byline="true"/> <copy file="${oim.home}/bin/weblogicImportMetadata.py" todir="."/> <replace file="weblogicImportMetadata.py"> <replacefilter token="connect()" value="connect('${wl.username}', '${wl.password}', '${wl.url}')"/> </replace> <echo> Importing metadata xmls to MDS... </echo> <exec dir="." vmlauncher="false" executable="${oim.home}/../common/bin/wlst.sh"> <arg value="-loadProperties"/> <arg value="weblogic.properties"/> <arg value="weblogicImportMetadata.py"/> <redirector output="deletemd_redirector.out" logerror="true" outputproperty="deletemd_redirector.out" /> </exec> <echo>${deletemd_redirector.out}</echo> <echo>${deletemd_redirector.out}</echo> <echo>Completed metadata xmls import to MDS</echo> </target>

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What do you do when you need whole-words search in Firefox?

- by romkyns

Example: I am looking to see if "arg" is a special keyword in Lua. I go to the Lua reference manual at http://www.lua.org/manual/5.1/manual.html. I search for "arg". I find hundreds of occurrences of the word "argument(s)" or "vararg". Any ideas? I know Firefox won't implement whole words as a core feature (something about cluttering up the ui... argh...), and I couldn't find a good addon that implemented this well.

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Using mongodump with an auth enabled mongodb server

- by bb-generation

I'm trying to do a daily backup of my mongodb server (auth enabled) using the mongodump tool. mongodump provides two parameters to set the credentials: -u [ --username ] arg username -p [ --password ] arg password Unfortunately they don't provide any parameter to read the password from stdin. Therefore everytime I run this command, everyone on the server can read the password (e.g. by using ps aux). The only workaround I have found is stopping the database and directly accessing the database files using the --dbpath parameter. Is there any other solution which allows me to backup the mongodb database without stopping the server and without "publishing" my password? I am using Debian squeeze 6.0.5 amd64 with mongodb 1.4.4-3.

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How to pass parameters to a function?

- by sbi

I need to process an SVN working copy in a PS script, but I have trouble passing arguments to functions. Here's what I have: function foo($arg1, $arg2) { echo $arg1 echo $arg2.FullName } echo "0: $($args[0])" echo "1: $($args[1])" $items = get-childitem $args[1] $items | foreach-object -process {foo $args[0] $_} I want to pass $arg[0] as $arg1 to foo, and $arg[1] as $arg2. However, it doesn't work, for some reason $arg1 is always empty: PS C:\Users\sbi> .\test.ps1 blah .\Dropbox 0: blah 1: .\Dropbox C:\Users\sbi\Dropbox\Photos C:\Users\sbi\Dropbox\Public C:\Users\sbi\Dropbox\sbi PS C:\Users\sbi> Note: The "blah"parameter isn't passed as $arg1. I am absolutely sure this is something hilariously simple (I only just started with doing PS and still feel very clumsy), but I have banged my head against this for more than an hour now, and I can't find anything.

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Using ConcurrentQueue for thread-safe Performance Bookkeeping.

- by Strenium

Just a small tidbit that's sprung up today. I had to book-keep and emit diagnostics for the average thread performance in a highly-threaded code over a period of last X number of calls and no more. Need of the day: a thread-safe, self-managing stats container. Since .NET 4.0 introduced new thread-safe 'Collections.Concurrent' objects and I've been using them frequently - the one in particular seemed like a good fit for storing each threads' performance data - ConcurrentQueue. But I wanted to store only the most recent X# of calls and since the ConcurrentQueue currently does not support size constraint I had to come up with my own generic version which attempts to restrict usage to numeric types only: unfortunately there is no IArithmetic-like interface which constrains to only numeric types – so the constraints here here aren't as elegant as they could be. (Note the use of the Average() method, of course you can use others as well as make your own). FIFO FixedSizedConcurrentQueue using System;using System.Collections.Concurrent;using System.Linq; namespace xxxxx.Data.Infrastructure{ [Serializable] public class FixedSizedConcurrentQueue<T> where T : struct, IConvertible, IComparable<T> { private FixedSizedConcurrentQueue() { } public FixedSizedConcurrentQueue(ConcurrentQueue<T> queue) { _queue = queue; } ConcurrentQueue<T> _queue = new ConcurrentQueue<T>(); public int Size { get { return _queue.Count; } } public double Average { get { return _queue.Average(arg => Convert.ToInt32(arg)); } } public int Limit { get; set; } public void Enqueue(T obj) { _queue.Enqueue(obj); lock (this) { T @out; while (_queue.Count > Limit) _queue.TryDequeue(out @out); } } } } The usage case is straight-forward, in this case I’m using a FIFO queue of maximum size of 200 to store doubles to which I simply Enqueue() the calculated rates: Usage var RateQueue = new FixedSizedConcurrentQueue<double>(new ConcurrentQueue<double>()) { Limit = 200 }; /* greater size == longer history */ That’s about it. Happy coding!

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Django - no module named app

- by Koran

Hi, I have been trying to get an application written in django working - but it is not working at all. I have been working on for some time too - and it is working on dev-server perfectly. But I am unable to put in the production env (apahce). My project name is apstat and the app name is basic. I try to access it as following Blockquote http://hostname/apstat But it shows the following error: MOD_PYTHON ERROR ProcessId: 6002 Interpreter: 'domU-12-31-39-06-DD-F4.compute-1.internal' ServerName: 'domU-12-31-39-06-DD-F4.compute-1.internal' DocumentRoot: '/home/ubuntu/server/' URI: '/apstat/' Location: '/apstat' Directory: None Filename: '/home/ubuntu/server/apstat/' PathInfo: '' Phase: 'PythonHandler' Handler: 'django.core.handlers.modpython' Traceback (most recent call last): File "/usr/lib/python2.6/dist-packages/mod_python/importer.py", line 1537, in HandlerDispatch default=default_handler, arg=req, silent=hlist.silent) File "/usr/lib/python2.6/dist-packages/mod_python/importer.py", line 1229, in _process_target result = _execute_target(config, req, object, arg) File "/usr/lib/python2.6/dist-packages/mod_python/importer.py", line 1128, in _execute_target result = object(arg) File "/usr/lib/pymodules/python2.6/django/core/handlers/modpython.py", line 228, in handler return ModPythonHandler()(req) File "/usr/lib/pymodules/python2.6/django/core/handlers/modpython.py", line 201, in __call__ response = self.get_response(request) File "/usr/lib/pymodules/python2.6/django/core/handlers/base.py", line 134, in get_response return self.handle_uncaught_exception(request, resolver, exc_info) File "/usr/lib/pymodules/python2.6/django/core/handlers/base.py", line 154, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/lib/pymodules/python2.6/django/views/debug.py", line 40, in technical_500_response html = reporter.get_traceback_html() File "/usr/lib/pymodules/python2.6/django/views/debug.py", line 114, in get_traceback_html return t.render(c) File "/usr/lib/pymodules/python2.6/django/template/__init__.py", line 178, in render return self.nodelist.render(context) File "/usr/lib/pymodules/python2.6/django/template/__init__.py", line 779, in render bits.append(self.render_node(node, context)) File "/usr/lib/pymodules/python2.6/django/template/debug.py", line 81, in render_node raise wrapped TemplateSyntaxError: Caught an exception while rendering: No module named basic Original Traceback (most recent call last): File "/usr/lib/pymodules/python2.6/django/template/debug.py", line 71, in render_node result = node.render(context) File "/usr/lib/pymodules/python2.6/django/template/debug.py", line 87, in render output = force_unicode(self.filter_expression.resolve(context)) File "/usr/lib/pymodules/python2.6/django/template/__init__.py", line 572, in resolve new_obj = func(obj, *arg_vals) File "/usr/lib/pymodules/python2.6/django/template/defaultfilters.py", line 687, in date return format(value, arg) File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 269, in format return df.format(format_string) File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 30, in format pieces.append(force_unicode(getattr(self, piece)())) File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 175, in r return self.format('D, j M Y H:i:s O') File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 30, in format pieces.append(force_unicode(getattr(self, piece)())) File "/usr/lib/pymodules/python2.6/django/utils/encoding.py", line 71, in force_unicode s = unicode(s) File "/usr/lib/pymodules/python2.6/django/utils/functional.py", line 201, in __unicode_cast return self.__func(*self.__args, **self.__kw) File "/usr/lib/pymodules/python2.6/django/utils/translation/__init__.py", line 62, in ugettext return real_ugettext(message) File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 286, in ugettext return do_translate(message, 'ugettext') File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 276, in do_translate _default = translation(settings.LANGUAGE_CODE) File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 194, in translation default_translation = _fetch(settings.LANGUAGE_CODE) File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 180, in _fetch app = import_module(appname) File "/usr/lib/pymodules/python2.6/django/utils/importlib.py", line 35, in import_module __import__(name) ImportError: No module named basic My settings.py is as follows: INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'apstat.basic', 'django.contrib.admin', ) If I remove the apstat.basic, it goes through, but that is not a solution. Is it something I am doing in apache? My apache - settings are - <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /home/ubuntu/server/ <Directory /> Options None AllowOverride None </Directory> <Directory /home/ubuntu/server/apstat> AllowOverride None Order allow,deny allow from all </Directory> <Location "/apstat"> SetHandler python-program PythonHandler django.core.handlers.modpython SetEnv DJANGO_SETTINGS_MODULE apstat.settings PythonOption django.root /home/ubuntu/server/ PythonDebug On PythonPath "['/home/ubuntu/server/'] + sys.path" </Location> </VirtualHost> I have now sat for more than a day on this. If someone can help me out, it would be very nice.

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Dependency Injection: Jetty 7

- by Malax

Hi StackOverflow! My application requires several interface implementations which require a Jetty server to do their job. This is, however, not necessarily the case in every implementations of those interfaces so the Jetty server is only a dependency. Since it would be a huge amount of pain to wrap the entire jetty server with all its logging, connector and Handler configurations, I want to inject the server to those implementations with Spring. I decided that injecting the Server class is not a good idea because an implementation could stop the server even if its required at another location. Currently I inject empty HandlerList classes to those implementations and they register their handlers to avoid those problems. The Problem: Those handlers might interfere with other handlers for example: implementation one might register a handler for /foo and implementation two too... problem. Has anyone used Jetty in such an environment? And how could this problem be solved? My XML to clarify my problem: <bean id="jetty" class="org.eclipse.jetty.server.Server" destroy-method="stop"> <property name="connectors"> <list> <bean class="org.eclipse.jetty.server.bio.SocketConnector"> <property name="host" value="10.8.0.46" /> <property name="port" value="9999" /> </bean> </list> </property> <property name="handler"> <bean class="org.eclipse.jetty.server.handler.HandlerCollection"> <property name="handlers"> <list> <ref bean="jetty.handlerList" /> <bean class="org.eclipse.jetty.server.handler.RequestLogHandler"> <property name="requestLog"> <bean class="org.eclipse.jetty.server.NCSARequestLog"> <constructor-arg value="${jetty.logfile}" /> <property name="extended" value="false"/> </bean> </property> </bean> </list> </property> </bean> </property> <property name="sendServerVersion" value="false" /> </bean> <bean id="jetty.handlerList" class="org.eclipse.jetty.server.handler.HandlerList" /> If I require an empty HandlerList I use something like this where com.example.myapp.util.ioc.CreateHandlerListFactory is a org.springframework.beans.factory.FactoryBean which creates a new HandlerList within the given HandlerList. <constructor-arg> <bean class="com.example.myapp.util.ioc.CreateHandlerListFactory"> <constructor-arg ref="jetty.handlerList"/> </bean> </constructor-arg>

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Mocking property sets

- by mehfuzh

In this post, i will be showing how you can mock property sets with your expected values or even action using JustMock. To begin, we have a sample interface: public interface IFoo { int Value { get; set; } } Now, we can create a mock that will throw on any call other than the one expected, generally its a strict mock and we can do it like: bool expected = false; var foo = Mock.Create<IFoo>(BehaviorMode.Strict); Mock.ArrangeSet(() => { foo.Value = 1; }).DoInstead(() => expected = true); foo.Value = 1; Assert.True(expected); Here , the method for running though our expectation for set is Mock.ArrangeSet , where we can directly set our expectations or can even set matchers into it like: var foo = Mock.Create<IFoo>(BehaviorMode.Strict); Mock.ArrangeSet(() => foo.Value = Arg.Matches<int>(x => x > 3)); foo.Value = 4; foo.Value = 5; Assert.Throws<MockException>(() => foo.Value = 3); In the example, any set for value not satisfying matcher expression will throw an MockException as this is a strict mock but what will be the case for loose mocks, where we also have to assert it. Here, let’s take an interface with an indexed property. Indexers are treated in the same way as properties, as with basic indexers let you access your class if it were an array. public interface IFooIndexed { string this[int key] { get; set; } } We want to setup a value for a particular index, we then will pass that mock to some implementer where it will be actually called. Once done, we want to assert that if it has been invoked properly. var foo = Mock.Create<IFooIndexed>(); Mock.ArrangeSet(() => foo[0] = "ping"); foo[0] = "ping"; Mock.AssertSet(() => foo[0] = "ping"); In the above example, both the values are user defined, it might happen that we want to make it more dynamic, In this example, i set it up for set with any value and finally checked if it is set with the one i am looking for. var foo = Mock.Create<IFooIndexed>(); Mock.ArrangeSet(() => foo[0] = Arg.Any<string>()); foo[0] = "ping"; Mock.AssertSet(() => foo[0] = Arg.Matches<string>(x => string.Compare("ping", x) == 0)); This is more or less of mocking user sets , but we can further have it to throw exception or even do our own task for a particular set , like : Mock.ArrangeSet(() => foo.MyProperty = 10).Throws(new ArgumentException()); Or bool expected = false; var foo = Mock.Create<IFoo>(BehaviorMode.Strict); Mock.ArrangeSet(() => { foo.Value = 1; }).DoInstead(() => expected = true); foo.Value = 1; Assert.True(expected); Or call the original setter , in this example it will throw an NotImplementedExpectation var foo = Mock.Create<FooAbstract>(BehaviorMode.Strict); Mock.ArrangeSet(() => { foo.Value = 1; }).CallOriginal(); Assert.Throws<NotImplementedException>(() => { foo.Value = 1; }); Finally, try all these, find issues, post them to forum and make it work for you :-). Hope that helps,

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A Communication System for XAML Applications

- by psheriff

In any application, you want to keep the coupling between any two or more objects as loose as possible. Coupling happens when one class contains a property that is used in another class, or uses another class in one of its methods. If you have this situation, then this is called strong or tight coupling. One popular design pattern to help with keeping objects loosely coupled is called the Mediator design pattern. The basics of this pattern are very simple; avoid one object directly talking to another object, and instead use another class to mediate between the two. As with most of my blog posts, the purpose is to introduce you to a simple approach to using a message broker, not all of the fine details. IPDSAMessageBroker Interface As with most implementations of a design pattern, you typically start with an interface or an abstract base class. In this particular instance, an Interface will work just fine. The interface for our Message Broker class just contains a single method “SendMessage” and one event “MessageReceived”. public delegate void MessageReceivedEventHandler( object sender, PDSAMessageBrokerEventArgs e); public interface IPDSAMessageBroker{ void SendMessage(PDSAMessageBrokerMessage msg); event MessageReceivedEventHandler MessageReceived;} PDSAMessageBrokerMessage Class As you can see in the interface, the SendMessage method requires a type of PDSAMessageBrokerMessage to be passed to it. This class simply has a MessageName which is a ‘string’ type and a MessageBody property which is of the type ‘object’ so you can pass whatever you want in the body. You might pass a string in the body, or a complete Customer object. The MessageName property will help the receiver of the message know what is in the MessageBody property. public class PDSAMessageBrokerMessage{ public PDSAMessageBrokerMessage() { } public PDSAMessageBrokerMessage(string name, object body) { MessageName = name; MessageBody = body; } public string MessageName { get; set; } public object MessageBody { get; set; }} PDSAMessageBrokerEventArgs Class As our message broker class will be raising an event that others can respond to, it is a good idea to create your own event argument class. This class will inherit from the System.EventArgs class and add a couple of additional properties. The properties are the MessageName and Message. The MessageName property is simply a string value. The Message property is a type of a PDSAMessageBrokerMessage class. public class PDSAMessageBrokerEventArgs : EventArgs{ public PDSAMessageBrokerEventArgs() { } public PDSAMessageBrokerEventArgs(string name, PDSAMessageBrokerMessage msg) { MessageName = name; Message = msg; } public string MessageName { get; set; } public PDSAMessageBrokerMessage Message { get; set; }} PDSAMessageBroker Class Now that you have an interface class and a class to pass a message through an event, it is time to create your actual PDSAMessageBroker class. This class implements the SendMessage method and will also create the event handler for the delegate created in your Interface. public class PDSAMessageBroker : IPDSAMessageBroker{ public void SendMessage(PDSAMessageBrokerMessage msg) { PDSAMessageBrokerEventArgs args; args = new PDSAMessageBrokerEventArgs( msg.MessageName, msg); RaiseMessageReceived(args); } public event MessageReceivedEventHandler MessageReceived; protected void RaiseMessageReceived( PDSAMessageBrokerEventArgs e) { if (null != MessageReceived) MessageReceived(this, e); }} The SendMessage method will take a PDSAMessageBrokerMessage object as an argument. It then creates an instance of a PDSAMessageBrokerEventArgs class, passing to the constructor two items: the MessageName from the PDSAMessageBrokerMessage object and also the object itself. It may seem a little redundant to pass in the message name when that same message name is part of the message, but it does make consuming the event and checking for the message name a little cleaner – as you will see in the next section. Create a Global Message Broker In your WPF application, create an instance of this message broker class in the App class located in the App.xaml file. Create a public property in the App class and create a new instance of that class in the OnStartUp event procedure as shown in the following code: public partial class App : Application{ public PDSAMessageBroker MessageBroker { get; set; } protected override void OnStartup(StartupEventArgs e) { base.OnStartup(e); MessageBroker = new PDSAMessageBroker(); }} Sending and Receiving Messages Let’s assume you have a user control that you load into a control on your main window and you want to send a message from that user control to the main window. You might have the main window display a message box, or put a string into a status bar as shown in Figure 1. Figure 1: The main window can receive and send messages The first thing you do in the main window is to hook up an event procedure to the MessageReceived event of the global message broker. This is done in the constructor of the main window: public MainWindow(){ InitializeComponent(); (Application.Current as App).MessageBroker. MessageReceived += new MessageReceivedEventHandler( MessageBroker_MessageReceived);} One piece of code you might not be familiar with is accessing a property defined in the App class of your XAML application. Within the App.Xaml file is a class named App that inherits from the Application object. You access the global instance of this App class by using Application.Current. You cast Application.Current to ‘App’ prior to accessing any of the public properties or methods you defined in the App class. Thus, the code (Application.Current as App).MessageBroker, allows you to get at the MessageBroker property defined in the App class. In the MessageReceived event procedure in the main window (shown below) you can now check to see if the MessageName property of the PDSAMessageBrokerEventArgs is equal to “StatusBar” and if it is, then display the message body into the status bar text block control. void MessageBroker_MessageReceived(object sender, PDSAMessageBrokerEventArgs e){ switch (e.MessageName) { case "StatusBar": tbStatus.Text = e.Message.MessageBody.ToString(); break; }} In the Page 1 user control’s Loaded event procedure you will send the message “StatusBar” through the global message broker to any listener using the following code: private void UserControl_Loaded(object sender, RoutedEventArgs e){ // Send Status Message (Application.Current as App).MessageBroker. SendMessage(new PDSAMessageBrokerMessage("StatusBar", "This is Page 1"));} Since the main window is listening for the message ‘StatusBar’, it will display the value “This is Page 1” in the status bar at the bottom of the main window. Sending a Message to a User Control The previous example sent a message from the user control to the main window. You can also send messages from the main window to any listener as well. Remember that the global message broker is really just a broadcaster to anyone who has hooked into the MessageReceived event. In the constructor of the user control named ucPage1 you can hook into the global message broker’s MessageReceived event. You can then listen for any messages that are sent to this control by using a similar switch-case structure like that in the main window. public ucPage1(){ InitializeComponent(); // Hook to the Global Message Broker (Application.Current as App).MessageBroker. MessageReceived += new MessageReceivedEventHandler( MessageBroker_MessageReceived);} void MessageBroker_MessageReceived(object sender, PDSAMessageBrokerEventArgs e){ // Look for messages intended for Page 1 switch (e.MessageName) { case "ForPage1": MessageBox.Show(e.Message.MessageBody.ToString()); break; }} Once the ucPage1 user control has been loaded into the main window you can then send a message using the following code: private void btnSendToPage1_Click(object sender, RoutedEventArgs e){ PDSAMessageBrokerMessage arg = new PDSAMessageBrokerMessage(); arg.MessageName = "ForPage1"; arg.MessageBody = "Message For Page 1"; // Send a message to Page 1 (Application.Current as App).MessageBroker.SendMessage(arg);} Since the MessageName matches what is in the ucPage1 MessageReceived event procedure, ucPage1 can do anything in response to that event. It is important to note that when the message gets sent it is sent to all MessageReceived event procedures, not just the one that is looking for a message called “ForPage1”. If the user control ucPage1 is not loaded and this message is broadcast, but no other code is listening for it, then it is simply ignored. Remove Event Handler In each class where you add an event handler to the MessageReceived event you need to make sure to remove those event handlers when you are done. Failure to do so can cause a strong reference to the class and thus not allow that object to be garbage collected. In each of your user control’s make sure in the Unloaded event to remove the event handler. private void UserControl_Unloaded(object sender, RoutedEventArgs e){ if (_MessageBroker != null) _MessageBroker.MessageReceived -= _MessageBroker_MessageReceived;} Problems with Message Brokering As with most “global” classes or classes that hook up events to other classes, garbage collection is something you need to consider. Just the simple act of hooking up an event procedure to a global event handler creates a reference between your user control and the message broker in the App class. This means that even when your user control is removed from your UI, the class will still be in memory because of the reference to the message broker. This can cause messages to still being handled even though the UI is not being displayed. It is up to you to make sure you remove those event handlers as discussed in the previous section. If you don’t, then the garbage collector cannot release those objects. Instead of using events to send messages from one object to another you might consider registering your objects with a central message broker. This message broker now becomes a collection class into which you pass an object and what messages that object wishes to receive. You do end up with the same problem however. You have to un-register your objects; otherwise they still stay in memory. To alleviate this problem you can look into using the WeakReference class as a method to store your objects so they can be garbage collected if need be. Discussing Weak References is beyond the scope of this post, but you can look this up on the web. Summary In this blog post you learned how to create a simple message broker system that will allow you to send messages from one object to another without having to reference objects directly. This does reduce the coupling between objects in your application. You do need to remember to get rid of any event handlers prior to your objects going out of scope or you run the risk of having memory leaks and events being called even though you can no longer access the object that is responding to that event. NOTE: You can download the sample code for this article by visiting my website at http://www.pdsa.com/downloads. Select “Tips & Tricks”, then select “A Communication System for XAML Applications” from the drop down list.

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Bacula windows client could not connect to Bacula director

- by pr0f-r00t

I have a Bacula server on my Linux Debian squeeze host (Bacula version 5.0.2) and a Bacula client on Windows XP SP3. On my network each client can see each other, can share files and can ping. On my local server I could run bconsole and the server responds but when I run bconsole or bat on my windows client the server does not respond. Here are my configuration files: bacula-dir.conf: # # Default Bacula Director Configuration file # # The only thing that MUST be changed is to add one or more # file or directory names in the Include directive of the # FileSet resource. # # For Bacula release 5.0.2 (28 April 2010) -- debian squeeze/sid # # You might also want to change the default email address # from root to your address. See the "mail" and "operator" # directives in the Messages resource. # Director { # define myself Name = nima-desktop-dir DIRport = 9101 # where we listen for UA connections QueryFile = "/etc/bacula/scripts/query.sql" WorkingDirectory = "/var/lib/bacula" PidDirectory = "/var/run/bacula" Maximum Concurrent Jobs = 1 Password = "Cv70F6pf1t6pBopT4vQOnigDrR0v3L" # Console password Messages = Daemon DirAddress = 127.0.0.1 # DirAddress = 72.16.208.1 } JobDefs { Name = "DefaultJob" Type = Backup Level = Incremental Client = nima-desktop-fd FileSet = "Full Set" Schedule = "WeeklyCycle" Storage = File Messages = Standard Pool = File Priority = 10 Write Bootstrap = "/var/lib/bacula/%c.bsr" } # # Define the main nightly save backup job # By default, this job will back up to disk in /nonexistant/path/to/file/archive/dir Job { Name = "BackupClient1" JobDefs = "DefaultJob" } #Job { # Name = "BackupClient2" # Client = nima-desktop2-fd # JobDefs = "DefaultJob" #} # Backup the catalog database (after the nightly save) Job { Name = "BackupCatalog" JobDefs = "DefaultJob" Level = Full FileSet="Catalog" Schedule = "WeeklyCycleAfterBackup" # This creates an ASCII copy of the catalog # Arguments to make_catalog_backup.pl are: # make_catalog_backup.pl <catalog-name> RunBeforeJob = "/etc/bacula/scripts/make_catalog_backup.pl MyCatalog" # This deletes the copy of the catalog RunAfterJob = "/etc/bacula/scripts/delete_catalog_backup" Write Bootstrap = "/var/lib/bacula/%n.bsr" Priority = 11 # run after main backup } # # Standard Restore template, to be changed by Console program # Only one such job is needed for all Jobs/Clients/Storage ... # Job { Name = "RestoreFiles" Type = Restore Client=nima-desktop-fd FileSet="Full Set" Storage = File Pool = Default Messages = Standard Where = /nonexistant/path/to/file/archive/dir/bacula-restores } # job for vmware windows host Job { Name = "nimaxp-fd" Type = Backup Client = nimaxp-fd FileSet = "nimaxp-fs" Schedule = "WeeklyCycle" Storage = File Messages = Standard Pool = Default Write Bootstrap = "/var/bacula/working/rsys-win-www-1-fd.bsr" #Change this } # job for vmware windows host Job { Name = "arg-michael-fd" Type = Backup Client = nimaxp-fd FileSet = "arg-michael-fs" Schedule = "WeeklyCycle" Storage = File Messages = Standard Pool = Default Write Bootstrap = "/var/bacula/working/rsys-win-www-1-fd.bsr" #Change this } # List of files to be backed up FileSet { Name = "Full Set" Include { Options { signature = MD5 } # # Put your list of files here, preceded by 'File =', one per line # or include an external list with: # # File = <file-name # # Note: / backs up everything on the root partition. # if you have other partitions such as /usr or /home # you will probably want to add them too. # # By default this is defined to point to the Bacula binary # directory to give a reasonable FileSet to backup to # disk storage during initial testing. # File = /usr/sbin } # # If you backup the root directory, the following two excluded # files can be useful # Exclude { File = /var/lib/bacula File = /nonexistant/path/to/file/archive/dir File = /proc File = /tmp File = /.journal File = /.fsck } } # List of files to be backed up FileSet { Name = "nimaxp-fs" Enable VSS = yes Include { Options { signature = MD5 } File = "C:\softwares" File = C:/softwares File = "C:/softwares" } } # List of files to be backed up FileSet { Name = "arg-michael-fs" Enable VSS = yes Include { Options { signature = MD5 } File = "C:\softwares" File = C:/softwares File = "C:/softwares" } } # # When to do the backups, full backup on first sunday of the month, # differential (i.e. incremental since full) every other sunday, # and incremental backups other days Schedule { Name = "WeeklyCycle" Run = Full 1st sun at 23:05 Run = Differential 2nd-5th sun at 23:05 Run = Incremental mon-sat at 23:05 } # This schedule does the catalog. It starts after the WeeklyCycle Schedule { Name = "WeeklyCycleAfterBackup" Run = Full sun-sat at 23:10 } # This is the backup of the catalog FileSet { Name = "Catalog" Include { Options { signature = MD5 } File = "/var/lib/bacula/bacula.sql" } } # Client (File Services) to backup Client { Name = nima-desktop-fd Address = localhost FDPort = 9102 Catalog = MyCatalog Password = "_MOfxEuRzxijc0DIMcBqtyx9iW1tzE7V6" # password for FileDaemon File Retention = 30 days # 30 days Job Retention = 6 months # six months AutoPrune = yes # Prune expired Jobs/Files } # Client file service for vmware windows host Client { Name = nimaxp-fd Address = nimaxp FDPort = 9102 Catalog = MyCatalog Password = "Ku8F1YAhDz5EMUQjiC9CcSw95Aho9XbXailUmjOaAXJP" # password for FileDaemon File Retention = 30 days # 30 days Job Retention = 6 months # six months AutoPrune = yes # Prune expired Jobs/Files } # Client file service for vmware windows host Client { Name = arg-michael-fd Address = 192.168.0.61 FDPort = 9102 Catalog = MyCatalog Password = "b4E9FU6s/9Zm4BVFFnbXVKhlyd/zWxj0oWITKK6CALR/" # password for FileDaemon File Retention = 30 days # 30 days Job Retention = 6 months # six months AutoPrune = yes # Prune expired Jobs/Files } # # Second Client (File Services) to backup # You should change Name, Address, and Password before using # #Client { # Name = nima-desktop2-fd # Address = localhost2 # FDPort = 9102 # Catalog = MyCatalog # Password = "_MOfxEuRzxijc0DIMcBqtyx9iW1tzE7V62" # password for FileDaemon 2 # File Retention = 30 days # 30 days # Job Retention = 6 months # six months # AutoPrune = yes # Prune expired Jobs/Files #} # Definition of file storage device Storage { Name = File # Do not use "localhost" here Address = localhost # N.B. Use a fully qualified name here SDPort = 9103 Password = "Cj-gtxugC4dAymY01VTSlUgMTT5LFMHf9" Device = FileStorage Media Type = File } # Definition of DDS tape storage device #Storage { # Name = DDS-4 # Do not use "localhost" here # Address = localhost # N.B. Use a fully qualified name here # SDPort = 9103 # Password = "Cj-gtxugC4dAymY01VTSlUgMTT5LFMHf9" # password for Storage daemon # Device = DDS-4 # must be same as Device in Storage daemon # Media Type = DDS-4 # must be same as MediaType in Storage daemon # Autochanger = yes # enable for autochanger device #} # Definition of 8mm tape storage device #Storage { # Name = "8mmDrive" # Do not use "localhost" here # Address = localhost # N.B. Use a fully qualified name here # SDPort = 9103 # Password = "Cj-gtxugC4dAymY01VTSlUgMTT5LFMHf9" # Device = "Exabyte 8mm" # MediaType = "8mm" #} # Definition of DVD storage device #Storage { # Name = "DVD" # Do not use "localhost" here # Address = localhost # N.B. Use a fully qualified name here # SDPort = 9103 # Password = "Cj-gtxugC4dAymY01VTSlUgMTT5LFMHf9" # Device = "DVD Writer" # MediaType = "DVD" #} # Generic catalog service Catalog { Name = MyCatalog # Uncomment the following line if you want the dbi driver # dbdriver = "dbi:sqlite3"; dbaddress = 127.0.0.1; dbport = dbname = "bacula"; dbuser = ""; dbpassword = "" } # Reasonable message delivery -- send most everything to email address # and to the console Messages { Name = Standard # # NOTE! If you send to two email or more email addresses, you will need # to replace the %r in the from field (-f part) with a single valid # email address in both the mailcommand and the operatorcommand. # What this does is, it sets the email address that emails would display # in the FROM field, which is by default the same email as they're being # sent to. However, if you send email to more than one address, then # you'll have to set the FROM address manually, to a single address. # for example, a '[email protected]', is better since that tends to # tell (most) people that its coming from an automated source. # mailcommand = "/usr/lib/bacula/bsmtp -h localhost -f \"\(Bacula\) \<%r\>\" -s \"Bacula: %t %e of %c %l\" %r" operatorcommand = "/usr/lib/bacula/bsmtp -h localhost -f \"\(Bacula\) \<%r\>\" -s \"Bacula: Intervention needed for %j\" %r" mail = root@localhost = all, !skipped operator = root@localhost = mount console = all, !skipped, !saved # # WARNING! the following will create a file that you must cycle from # time to time as it will grow indefinitely. However, it will # also keep all your messages if they scroll off the console. # append = "/var/lib/bacula/log" = all, !skipped catalog = all } # # Message delivery for daemon messages (no job). Messages { Name = Daemon mailcommand = "/usr/lib/bacula/bsmtp -h localhost -f \"\(Bacula\) \<%r\>\" -s \"Bacula daemon message\" %r" mail = root@localhost = all, !skipped console = all, !skipped, !saved append = "/var/lib/bacula/log" = all, !skipped } # Default pool definition Pool { Name = Default Pool Type = Backup Recycle = yes # Bacula can automatically recycle Volumes AutoPrune = yes # Prune expired volumes Volume Retention = 365 days # one year } # File Pool definition Pool { Name = File Pool Type = Backup Recycle = yes # Bacula can automatically recycle Volumes AutoPrune = yes # Prune expired volumes Volume Retention = 365 days # one year Maximum Volume Bytes = 50G # Limit Volume size to something reasonable Maximum Volumes = 100 # Limit number of Volumes in Pool } # Scratch pool definition Pool { Name = Scratch Pool Type = Backup } # # Restricted console used by tray-monitor to get the status of the director # Console { Name = nima-desktop-mon Password = "-T0h6HCXWYNy0wWqOomysMvRGflQ_TA6c" CommandACL = status, .status } bacula-fd.conf on client: # # Default Bacula File Daemon Configuration file # # For Bacula release 5.0.3 (08/05/10) -- Windows MinGW32 # # There is not much to change here except perhaps the # File daemon Name # # # "Global" File daemon configuration specifications # FileDaemon { # this is me Name = nimaxp-fd FDport = 9102 # where we listen for the director WorkingDirectory = "C:\\Program Files\\Bacula\\working" Pid Directory = "C:\\Program Files\\Bacula\\working" # Plugin Directory = "C:\\Program Files\\Bacula\\plugins" Maximum Concurrent Jobs = 10 } # # List Directors who are permitted to contact this File daemon # Director { Name = Nima-desktop-dir Password = "Cv70F6pf1t6pBopT4vQOnigDrR0v3L" } # # Restricted Director, used by tray-monitor to get the # status of the file daemon # Director { Name = nimaxp-mon Password = "q5b5g+LkzDXorMViFwOn1/TUnjUyDlg+gRTBp236GrU3" Monitor = yes } # Send all messages except skipped files back to Director Messages { Name = Standard director = Nima-desktop = all, !skipped, !restored } I have checked my firewall and disabled the firewall but it doesn't work.

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Jetty 7 + MySQL Config [java.lang.ClassNotFoundException: org.mortbay.jetty.webapp.WebAppContext]

- by Scott Chang

I've been trying to get a c3p0 db connection pool configured for Jetty, but I keep getting a ClassNotFoundException: 2010-03-14 19:32:12.028:WARN::Failed startup of context WebAppContext@fccada@fccada/phpMyAdmin,file:/usr/local/jetty/webapps/phpMyAdmin/,file:/usr/local/jetty/webapps/phpMyAdmin/ java.lang.ClassNotFoundException: org.mortbay.jetty.webapp.WebAppContext at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:313) at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:266) at org.eclipse.jetty.util.Loader.loadClass(Loader.java:90) at org.eclipse.jetty.xml.XmlConfiguration.nodeClass(XmlConfiguration.java:224) at org.eclipse.jetty.xml.XmlConfiguration.configure(XmlConfiguration.java:187) at org.eclipse.jetty.webapp.JettyWebXmlConfiguration.configure(JettyWebXmlConfiguration.java:77) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:975) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:586) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:349) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:165) at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:162) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:165) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:92) at org.eclipse.jetty.server.Server.doStart(Server.java:228) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:990) at java.security.AccessController.doPrivileged(Native Method) at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:955) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.jetty.start.Main.invokeMain(Main.java:394) at org.eclipse.jetty.start.Main.start(Main.java:546) at org.eclipse.jetty.start.Main.parseCommandLine(Main.java:208) at org.eclipse.jetty.start.Main.main(Main.java:75) I'm new to Jetty and I want to ultimately get phpMyAdmin and WordPress to run on it through Quercus and a JDBC connection. Here are my web.xml and jetty-web.xml files in my WEB-INF directory. jetty-web.xml: <?xml version="1.0"?> <!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://jetty.mortbay.org/configure.dtd"> <Configure class="org.mortbay.jetty.webapp.WebAppContext"> <New id="mysql" class="org.mortbay.jetty.plus.naming.Resource"> <Arg>jdbc/mysql</Arg> <Arg> <New class="com.mchange.v2.c3p0.ComboPooledDataSource"> <Set name="Url">jdbc:mysql://localhost:3306/mysql</Set> <Set name="User">user</Set> <Set name="Password">pw</Set> </New> </Arg> </New> </Configure> web.xml: <?xml version="1.0"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd"> <web-app> <description>Caucho Technology's PHP Implementation</description> <resource-ref> <description>My DataSource Reference</description> <res-ref-name>jdbc/mysql</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> <servlet> <servlet-name>Quercus Servlet</servlet-name> <servlet-class>com.caucho.quercus.servlet.QuercusServlet</servlet-class>  <init-param> <param-name>script-encoding</param-name> <param-value>UTF-8</param-value> </init-param>  <init-param> <param-name>database</param-name> <param-value>jdbc/mysql</param-value> </init-param> <init-param> <param-name>ini-file</param-name> <param-value>WEB-INF/php.ini</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>Quercus Servlet</servlet-name> <url-pattern>*.php</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.php</welcome-file> </welcome-file-list> </web-app> I'm guessing that I'm missing a few jars or something. Currently I have placed the following jars in my WEB-INF/lib directory: c3p0-0.9.1.2.jar commons-dbcp-1.4.jar commons-pool-1.5.4.jar mysql-connector-java-5.1.12-bin.jar I have also tried to put these jars in JETTY-HOME/lib/ext, but to no avail... Someone please tell me what is wrong with my configuration. I'm sick of digging through Jetty's crappy documentation.

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jQuery monitoring form field created by AJAX query

- by Jon Rhoades

Preface: I am sure this is incredibly simple, but I have searched this site & the jQuery site and can't figure out the right search term to get an answer - please excuse my ignorance! I am adding additional form fields using jQuery's ajax function and need to then apply additional ajax functions to those fields but can't seem to get jQuery to monitor these on the fly form fields. How can I get jQuery to use these new fields? $(document).ready(function() { $('#formField').hide(); $('.lnk').click(function() { var t = this.id; $('#formField').show(400); $('#form').load('loader.php?val=' + t); }); //This works fine if the field is already present var name = $('#name'); var email = $('#email'); $('#uid').keyup(function () { var t = this; if (this.value != this.lastValue) { if (this.timer) clearTimeout(this.timer); this.timer = setTimeout(function () { $.ajax({ url: 'loader.php', data: 'action=getUser&uid=' + t.value, type: 'get', success: function (j) { va = j.split("|"); displayname = va[1]; mail = va[2]; name.val(displayname); email.val(mail); } }); }, 200); this.lastValue = this.value; } }); }); So if the is present in the basic html page the function works, but if it arrives by the $.load function it doesn't - presumably because $(document).ready has already started. I did try: $(document).ready(function() { $('#formField').hide(); $('.lnk').click(function() { var t = this.id; $('#formField').show(400); $('#form').load('loader.php?val=' + t); prepUid(); }); }); function prepUid(){ var name = $('#name'); var email = $('#email'); $('#uid').keyup(function () { snip........... But it didn't seem to work...

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How to compile jsoup through Ant?

- by JackWM

I tried to use Ant to compile the jsoup source. I can compile successfully, but cannot pass the test. Here is the process: jsoup version: 1.6.3 ; Ant version: 1.8.2 the source of jsoup is in the directory src/ I made a build file src/build.xml This file contains <project name="jsoup"> <target name="compile"> <mkdir dir="build/classes"/> <javac srcdir="src" destdir="build/classes" includeantruntime="false"/> </target> <target name="jar"> <mkdir dir="build/jar"/> <jar destfile="build/jar/jsoup.jar" basedir="build/classes"> <manifest> <attribute name="Main-Class" value="StateTrace"/> </manifest> </jar> </target> <target name="run">  <exec executable="java"> <arg value="-jar"/> <arg value="build/jar/jsoup.jar"/> <arg value="htmls/index.html"/> </exec> </target> </project> Note: 1. StateTrace.java is my own test program; 2. htmls/index.html is the input to StateTrace.java. Then I compile and run it with Ant: > ant compile > ant jar > ant run After this, I got err like: run: [exec] Exception in thread "main" java.lang.ExceptionInInitializerError [exec] at org.jsoup.nodes.Entities$EscapeMode.<clinit>(Unknown Source) [exec] at org.jsoup.nodes.Document$OutputSettings.<init>(Unknown Source) [exec] at org.jsoup.nodes.Document.<init>(Unknown Source) [exec] at org.jsoup.parser.TreeBuilder.initialiseParse(Unknown Source) [exec] at org.jsoup.parser.TreeBuilder.parse(Unknown Source) [exec] at org.jsoup.parser.HtmlTreeBuilder.parse(Unknown Source) [exec] at org.jsoup.parser.Parser.parse(Unknown Source) [exec] at org.jsoup.Jsoup.parse(Unknown Source) [exec] at StateTrace.main(Unknown Source) [exec] Caused by: java.lang.NullPointerException [exec] at java.util.Properties$LineReader.readLine(Properties.java:418) [exec] at java.util.Properties.load0(Properties.java:337) [exec] at java.util.Properties.load(Properties.java:325) [exec] at org.jsoup.nodes.Entities.loadEntities(Unknown Source) [exec] at org.jsoup.nodes.Entities.<clinit>(Unknown Source) [exec] ... 9 more [exec] Result: 1 BUILD SUCCESSFUL Total time: 0 seconds However, if I manually compiled all the java source, like javac src/org/jsoup/*.java src/org/jsoup/parser/*.java src/org/jsoup/examples/*.java src/org/jsoup/nodes/*.java src/org/jsoup/safety/*.java src/org/jsoup/select/*.java src/org/jsoup/helper/*.java I could compile successfully and pass my test. Any clue? Thanks!

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Advice on my jQuery Ajax Function

- by NessDan

So on my site, a user can post a comment on 2 things: a user's profile and an app. The code works fine in PHP but we decided to add Ajax to make it more stylish. The comment just fades into the page and works fine. I decided I wanted to make a function so that I wouldn't have to manage 2 (or more) blocks of codes in different files. Right now, the code is as follows for the two pages (not in a separate .js file, they're written inside the head tags for the pages.): // App page $("input#comment_submit").click(function() { var comment = $("#comment_box").val(); $.ajax({ type: "POST", url: "app.php?id=<?php echo $id; ?>", data: {comment: comment}, success: function() { $("input#comment_submit").attr("disabled", "disabled").val("Comment Submitted!"); $("textarea#comment_box").attr("disabled", "disabled") $("#comments").prepend("<div class=\"comment new\"></div>"); $(".new").prepend("<a href=\"profile.php?username=<?php echo $_SESSION['username']; ?>\" class=\"commentname\"><?php echo $_SESSION['username']; ?></a><p class=\"commentdate\"><?php echo date("M. d, Y", time()) ?> - <?php echo date("g:i A", time()); ?></p><p class=\"commentpost\">" + comment + "</p>").hide().fadeIn(1000); } }); return false; }); And next up, // Profile page $("input#comment_submit").click(function() { var comment = $("#comment_box").val(); $.ajax({ type: "POST", url: "profile.php?username=<?php echo $user; ?>", data: {comment: comment}, success: function() { $("input#comment_submit").attr("disabled", "disabled").val("Comment Submitted!"); $("textarea#comment_box").attr("disabled", "disabled") $("#comments").prepend("<div class=\"comment new\"></div>"); $(".new").prepend("<a href=\"profile.php?username=<?php echo $_SESSION['username']; ?>\" class=\"commentname\"><?php echo $_SESSION['username']; ?></a><p class=\"commentdate\"><?php echo date("M. d, Y", time()) ?> - <?php echo date("g:i A", time()); ?></p><p class=\"commentpost\">" + comment + "</p>").hide().fadeIn(1000); } }); return false; }); Now, on each page the box names will always be the same (comment_box and comment_submit) so what do you guys think of this function (Note, the postComment is in the head tag on the page.): // On the page, (profile.php) $(function() { $("input#comment_submit").click(function() { postComment("profile", "<?php echo $user ?>", "<?php echo $_SESSION['username']; ?>", "<?php echo date("M. d, Y", time()) ?>", "<?php echo date("g:i A", time()); ?>"); }); }); Which leads to this function (which is stored in a separate file called functions.js): function postComment(page, argvalue, username, date, time) { if (page == "app") { var arg = "id"; } if (page == "profile") { var arg = "username"; } var comment = $("#comment_box").val(); $.ajax({ type: "POST", url: page + ".php?" + arg + "=" + argvalue, data: {comment: comment}, success: function() { $("textarea#comment_box").attr("disabled", "disabled") $("input#comment_submit").attr("disabled", "disabled").val("Comment Submitted!"); $("#comments").prepend("<div class=\"comment new\"></div>"); $(".new").prepend("<a href=\"" + page + ".php?" + arg + "=" + username + "\" class=\"commentname\">" + username + "</a><p class=\"commentdate\">" + date + " - " + time + "</p><p class=\"commentpost\">" + nl2br(comment) + "</p>").hide().fadeIn(1000); } }); return false; } That's what I came up with! So, some problems: When I hit the button the page refreshes. What fixed this was taking the return false from the function and putting it into the button click. Any way to keep it in the function and have the same effect? But my real question is this: Can any coders out there that are familiar to jQuery tell me techniques, coding practices, or ways to write my code more efficiently/elegantly? I've done a lot of work in PHP but I know that echoing the date may not be the most efficient way to get the date and time. So any tips that can really help me streamline this function and also make me better with writing jQuery are very welcome!

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Catching url in htaccess rewrite condition

- by Rickard

Hi! I got this url /search/renttype-all.place-all.type-all.bedrooms-all.0.0/ I want to get the text after the second "/" and the third "/". The URL can end at the third "/" or go on with more text and "/". I have been trying with a lot of rules but never got any to work. My last try was RewriteRule ^search/(.+)/$ index.php?Search=0&Arg=$1 [NC] RewriteRule ^search/(.+)/(.+)$ index.php?Search=0&Arg=$1 [NC] Anyone that can show me how to make a rule that works? :) Thanks for reading my question!

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How to implement lambda as a function called "lambda" in Clojure?

- by dirtyvagabond

I'd like to be able to define lambdas using common Lisp syntax, in Clojure. For example: (lambda (myarg) (some-functions-that-refer-to myarg)) This needs to result in the same as: #(some-functions-that-refer-to %) In my case, I know I'll always have exactly one arg, so perhaps that simplifies things. (But it can be called anything -- "myarg" or whatever.) I suspect a workable solution is to "(defmacro lambda ...". If so, I'm not sure of the best way to proceed. How to cleanly translate the arg name to %? And how to end up with the correct function? Or, is there a simpler solution than writing my own macro that actually re-implements Clojure's... lambda?

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One template specialization for multiple classes

- by peper0

Let's assume we have a template function "foo": template<class T> void foo(T arg) { ... } I can make specialization for some particular type, e.g. template<> void foo(int arg) { ... } If I wanted to use the same specialization for all builtin numeric types (int, float, double etc.) I would write those lines many times. I know that body can be thrown out to another function and just call of this is to be made in every specialization's body, however it would be nicer if i could avoid writting this "void foo(..." for every type. Is there any possibility to tell the compiler that I want to use this specialization for all this types?

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Helper Casting Functions -- Is it a code smell?

- by Earlz

I recently began to start using functions to make casting easier on my fingers for one instance I had something like this ((Dictionary<string,string>)value).Add(foo); and converted it to a tiny little helper function so I can do this ToDictionary(value).Add(foo); Is this a code smell? Also, what about simpler examples? For example in my scripting engine I've considered making things like this ((StringVariable)arg).Value="foo"; be ToStringVar(arg).Value="foo"; I really just dislike how inorder to cast a value and instantly get a property from it you must enclose it in double parentheses. I have a feeling the last one is much worse than the first one though (also I've marked this language agnostic even though my example is C#)

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Prefer extension methods for encapsulation and reusability?

- by tzaman

edit4: wikified, since this seems to have morphed more into a discussion than a specific question. In C++ programming, it's generally considered good practice to "prefer non-member non-friend functions" instead of instance methods. This has been recommended by Scott Meyers in this classic Dr. Dobbs article, and repeated by Herb Sutter and Andrei Alexandrescu in C++ Coding Standards (item 44); the general argument being that if a function can do its job solely by relying on the public interface exposed by the class, it actually increases encapsulation to have it be external. While this confuses the "packaging" of the class to some extent, the benefits are generally considered worth it. Now, ever since I've started programming in C#, I've had a feeling that here is the ultimate expression of the concept that they're trying to achieve with "non-member, non-friend functions that are part of a class interface". C# adds two crucial components to the mix - the first being interfaces, and the second extension methods: Interfaces allow a class to formally specify their public contract, the methods and properties that they're exposing to the world. Any other class can choose to implement the same interface and fulfill that same contract. Extension methods can be defined on an interface, providing any functionality that can be implemented via the interface to all implementers automatically. And best of all, because of the "instance syntax" sugar and IDE support, they can be called the same way as any other instance method, eliminating the cognitive overhead! So you get the encapsulation benefits of "non-member, non-friend" functions with the convenience of members. Seems like the best of both worlds to me; the .NET library itself providing a shining example in LINQ. However, everywhere I look I see people warning against extension method overuse; even the MSDN page itself states: In general, we recommend that you implement extension methods sparingly and only when you have to. (edit: Even in the current .NET library, I can see places where it would've been useful to have extensions instead of instance methods - for example, all of the utility functions of List<T> (Sort, BinarySearch, FindIndex, etc.) would be incredibly useful if they were lifted up to IList<T> - getting free bonus functionality like that adds a lot more benefit to implementing the interface.) So what's the verdict? Are extension methods the acme of encapsulation and code reuse, or am I just deluding myself? (edit2: In response to Tomas - while C# did start out with Java's (overly, imo) OO mentality, it seems to be embracing more multi-paradigm programming with every new release; the main thrust of this question is whether using extension methods to drive a style change (towards more generic / functional C#) is useful or worthwhile..) edit3: overridable extension methods The only real problem identified so far with this approach, is that you can't specialize extension methods if you need to. I've been thinking about the issue, and I think I've come up with a solution. Suppose I have an interface MyInterface, which I want to extend - I define my extension methods in a MyExtension static class, and pair it with another interface, call it MyExtensionOverrider. MyExtension methods are defined according to this pattern: public static int MyMethod(this MyInterface obj, int arg, bool attemptCast=true) { if (attemptCast && obj is MyExtensionOverrider) { return ((MyExtensionOverrider)obj).MyMethod(arg); } // regular implementation here } The override interface mirrors all of the methods defined in MyExtension, except without the this or attemptCast parameters: public interface MyExtensionOverrider { int MyMethod(int arg); string MyOtherMethod(); } Now, any class can implement the interface and get the default extension functionality: public class MyClass : MyInterface { ... } Anyone that wants to override it with specific implementations can additionally implement the override interface: public class MySpecializedClass : MyInterface, MyExtensionOverrider { public int MyMethod(int arg) { //specialized implementation for one method } public string MyOtherMethod() { // fallback to default for others MyExtension.MyOtherMethod(this, attemptCast: false); } } And there we go: extension methods provided on an interface, with the option of complete extensibility if needed. Fully general too, the interface itself doesn't need to know about the extension / override, and multiple extension / override pairs can be implemented without interfering with each other. I can see three problems with this approach - It's a little bit fragile - the extension methods and override interface have to be kept synchronized manually. It's a little bit ugly - implementing the override interface involves boilerplate for every function you don't want to specialize. It's a little bit slow - there's an extra bool comparison and cast attempt added to the mainline of every method. Still, all those notwithstanding, I think this is the best we can get until there's language support for interface functions. Thoughts?

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How to pass the 'argument-line' of one PowerShell function to another?

- by jwfearn

I'm trying to write some PowerShell functions that do some stuff and then transparently call through to existing built-in function. I want to pass along all the arguments untouched. I don't want to have to know any details of the arguments. I tired using 'splat' to do this with @args but that didn't work as I expected. In the example below, I've written a toy function called myls which supposed to print hello! and then call the same built-in function, Get-ChildItem, that the built-in alias ls calls with the rest of the argument line intact. What I have so far works pretty well: function myls { Write-Output "hello!" Invoke-Expression("Get-ChildItem "+$MyInvocation.UnboundArguments -join " ") } A correct version of myls should be able to handle being called with no arguments, with one argument, with named arguments, from a line containing multiple semi-colon delimited commands, and with variables in the arguments including string variables containing spaces. The tests below compare myls and the builtin ls: [NOTE: output elided and/or compacted to save space] PS> md C:\p\d\x, C:\p\d\y, C:\p\d\"jay z" PS> cd C:\p\d PS> ls # no args PS> myls # pass PS> cd .. PS> ls d # one arg PS> myls d # pass PS> $a="A"; $z="Z"; $y="y"; $jz="jay z" PS> $a; ls d; $z # multiple statements PS> $a; myls d; $z # pass PS> $a; ls d -Exclude x; $z # named args PS> $a; myls d -Exclude x; $z # pass PS> $a; ls d -Exclude $y; $z # variables in arg-line PS> $a; myls d -Exclude $y; $z # pass PS> $a; ls d -Exclude $jz; $z # variables containing spaces in arg-line PS> $a; myls d -Exclude $jz; $z # FAIL! Is there a way I can re-write myls to get the behavior I want?

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