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  • Parallel processing slower than sequential?

    - by zebediah49
    EDIT: For anyone who stumbles upon this in the future: Imagemagick uses a MP library. It's faster to use available cores if they're around, but if you have parallel jobs, it's unhelpful. Do one of the following: do your jobs serially (with Imagemagick in parallel mode) set MAGICK_THREAD_LIMIT=1 for your invocation of the imagemagick binary in question. By making Imagemagick use only one thread, it slows down by 20-30% in my test cases, but meant I could run one job per core without issues, for a significant net increase in performance. Original question: While converting some images using ImageMagick, I noticed a somewhat strange effect. Using xargs was significantly slower than a standard for loop. Since xargs limited to a single process should act like a for loop, I tested that, and found it to be about the same. Thus, we have this demonstration. Quad core (AMD Athalon X4, 2.6GHz) Working entirely on a tempfs (16g ram total; no swap) No other major loads Results: /media/ramdisk/img$ time for f in *.bmp; do echo $f ${f%bmp}png; done | xargs -n 2 -P 1 convert -auto-level real 0m3.784s user 0m2.240s sys 0m0.230s /media/ramdisk/img$ time for f in *.bmp; do echo $f ${f%bmp}png; done | xargs -n 2 -P 2 convert -auto-level real 0m9.097s user 0m28.020s sys 0m0.910s /media/ramdisk/img$ time for f in *.bmp; do echo $f ${f%bmp}png; done | xargs -n 2 -P 10 convert -auto-level real 0m9.844s user 0m33.200s sys 0m1.270s Can anyone think of a reason why running two instances of this program takes more than twice as long in real time, and more than ten times as long in processor time to complete the same task? After that initial hit, more processes do not seem to have as significant of an effect. I thought it might have to do with disk seeking, so I did that test entirely in ram. Could it have something to do with how Convert works, and having more than one copy at once means it cannot use processor cache as efficiently or something? EDIT: When done with 1000x 769KB files, performance is as expected. Interesting. /media/ramdisk/img$ time for f in *.bmp; do echo $f ${f%bmp}png; done | xargs -n 2 -P 1 convert -auto-level real 3m37.679s user 5m6.980s sys 0m6.340s /media/ramdisk/img$ time for f in *.bmp; do echo $f ${f%bmp}png; done | xargs -n 2 -P 1 convert -auto-level real 3m37.152s user 5m6.140s sys 0m6.530s /media/ramdisk/img$ time for f in *.bmp; do echo $f ${f%bmp}png; done | xargs -n 2 -P 2 convert -auto-level real 2m7.578s user 5m35.410s sys 0m6.050s /media/ramdisk/img$ time for f in *.bmp; do echo $f ${f%bmp}png; done | xargs -n 2 -P 4 convert -auto-level real 1m36.959s user 5m48.900s sys 0m6.350s /media/ramdisk/img$ time for f in *.bmp; do echo $f ${f%bmp}png; done | xargs -n 2 -P 10 convert -auto-level real 1m36.392s user 5m54.840s sys 0m5.650s

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  • Capistrano + Nginx + Passenger = 403

    - by slimchrisp
    I asked this over at stackoverflow as well, but still haven't received any answers that have helped me to solve this problem. I have spent almost a week at this point trying to solve the issue, and I'm just not making any headway. It seems that this issue is pretty common, but none of the solutions I found online work for me. A buddy of mine is actually creating the same setup, and he is having the same issue. After a few days stuck with the 403 error I started over using this tutorial: http://blog.ninjahideout.com/posts/a-guide-to-a-nginx-passenger-and-rvm-server I had hoped starting from scratch using this tutorial would work, but no dice. Either way, if you view the tutorial you can see what steps I have taken. Here is essentially what I have going on. I have a VPS account on linode.com Server OS is Ubuntu 10.04 Local OS (shouldn't matter, but just so you know) used to deploy with Capistrano is Snow Leopard 10.6.6 I use RVM on the server. Version is 1.2.2 I was previously on ruby-1.9.2-p0 [ i386 ], but per the tutorial listed above I switched to ree-1.8.7-2010.02 [ i386 ]. Running 'which ruby' from the command line verifies that I am using 1.8.7 with the following output: /usr/local/rvm/rubies/ree-1.8.7-2010.02/bin/ruby passenger -v prints the following: Phusion Passenger version 3.0.2 Running 'nginx -v' gives me a message that the command nginx could not be found. The server is definitely there and running as I can use nginx to serve static files, but this could have something to do with my problem. I have two users dealing with the install. root which I used to install everything, and deployer which is a user I created specifically to for deploying my applications My web app directory is in the deployer user's home directory as follows: /home/deployer/webapps/mysite.com/public Per Capistrano default deploy, a symbolic link called current is created in the public folder, and points to /home/deployer/webapps/mysite.com/public/releases/most_current_release I have chmodded the deployer directory recursively to 777 /opt/nginx permissions: rwxr-xr-x /usr/local/rvm/gems/ree-1.8.7-2010.02/gems/passenger-3.0.2 permissions: rwxrwsrwx My nginx config file has gone through just short of eternity variations, but currently looks like this: ================================================================================== worker_processes 1; events { worker_connections 1024; } http { passenger_root /usr/local/rvm/gems/ree-1.8.7-2010.02/gems/passenger-3.0.2; passenger_ruby /usr/local/rvm/bin/passenger_ruby; include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; server { # listen *:80; server_name mysite.com www.mysite.com; root /home/deployer/webapps/mysite.com/public/current; passenger_enabled on; passenger_friendly_error_pages on; access_log logs/mysite.com/server.log; error_log logs/mysite.com/error.log info; error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } } } ================================================================================== I bounce nginx, hit the site, and boom. 403, and logs say directory index of /home/deployer... is forbidden As others with a similar problem have said, you can drop an index.html into the public/releases/current_release and it will render. But rails no worky. That's basically it. At this point I have just about completely exhausted every possible solution attempt I can think of. I am a programmer and definitely not a sysadmin, so I am 99% sure this has something to do with permissions that I have hosed, but for the life of me I just can't figure out where. If anyone can help I would really really appreciate it. If there's any specific permission things you want me to check (ie groups/permissions), can you please include the commands to do so as well. Hopefully this will help others in the future who read this post. Let me know if there is any other information I can provide, and thanks in advance!!!

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  • IPv6: Should I have private addresses?

    - by AlReece45
    Right now, we have a rack of servers. Every server right now has at least 2 IP addresses, one for the public interface, another for the private. The servers that have SSL websites on them have more IP addresses. We also have virtual servers, that are configured similarly. Private Network The private range is currently just used for backups and monitoring. Its a gigabit port, the interface usage does not usually get very high. There are other technologies we're considering using that would use this port: iSCSI (implementations usually recommends dedicating an interface to it, which would be yet another IP network), VPN to get access to the private range (something I'd rather avoid) dedicated database servers LDAP centralized configuration (like puppet) centralized logging We don't have any private addresses in our DNS records (only public addresses). For our servers to utilize the correct IP address for the right interface (and not hard code the IP address) probably requires setting up a private DNS server (So now we add 2 different dns entries to 2 different systems). Public Network Our public range has a variety of services include web, email, and ftp. There is a hardware firewall between our network and the "public" network. We have (relatively secure) method to instruct the firewall to open and close administrative access (web interfaces, ssh, etc) for our current IP address. With either solution discussed, the host-based firewalls will be configured as well. The public network currently runs at a dedicated 20Mbps link. There are a couple of legacy servers with fast-ethernet ports, but they are scheduled for decommissioning. All of the other production boxes have at least 2 Gigabit Ethernet ports. The more traffic-heavy servers have 4-6 available (none is using more than the 2 Gigabit ports right now). IPv6 I want to get an IPv6 prefix from our ISP. So at least every "server" has at least one IPv6 interface. We'll still need to keep the IPv4 addressees up and available for legacy clients (web servers and email at the very least). We have two IP networks right now. Adding the public IPv6 address would make it three. Just use IPv6? I'm thinking about just dumping the private IPv4 range and using the IPv6 range as the primary means of all communications. If an interface starts reaching its capacity, utilize the newly free interfaces to create a trunk. It has the advantage that if either the public or private traffic needs to exceed 1Gbps. The traffic for each interface is already analyzed on a regular basis to predict future bandwidth use. In the rare instances where bandwidth unexpected peaks: utilize QoS to ensure traffic (like our limited SSH access) is prioritized correctly so the problem can be corrected (if possible, our WAN is the bottleneck right now). It also has the advantage of not needing to make an entry for every private address. We may have private DNS (or just LDAP), but it'll be much more limited in scope with less entries to duplicate. Summary I'm trying to make this network as "simple" as possible. At the same time, I want to make sure its reliable, upgradeable, scalable, and (eventually) redundant. Having one IPv6 network, and a legacy IPv4 network seems to be the best solution to me. Regarding using assigned IPv6 addresses for both networks, sharing the available bandwidth on one (more trunked if needed): Are there any technical disadvantages (limitations, buffers, scalability)? Are there any other security considerations (asides from firewalls mentioned above) to consider? Are there regulations or other security requirements (like PCI-DSS) that this doesn't meet? Is there typical software for setting up a Linux network that doesn't have IPv6 support yet? (logging, ldap, puppet) Some other thing I didn't consider?

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  • Looking for advice on Hyper-v storage replication

    - by Notre1
    I am designing a 2-host Hyper-V R2 cluster with 6-10 guests stored on a SMB iSCSI SAN device (probably Promise VessRAID). I will be getting at least two of the SAN devices and need to eliminate the storage a single point of failure. Ideally, that would involve real-time failover for the storage, like the Windows failover clustering does for the hosts. This design will be used at around six of our sites, and I would like to allow for us to eventually setup a cluster at colocation site and replicate each site's VMs there for DR. (Ideally a live multi-site cluster, but a manual import of the VMs would be fine for this sort of DR.) The tools that come with enterprise SANs, like EMC and NetApp, seem to be the most commonly used items for a Hyper-V cluster, but I can't afford their prices with my budget. Outside of them, the two tools that seem to be most common for Hyper-V storage replication are SteelEye (now SIOS) DataKeeper Cluster Edition and Double-Take Availability. Originally, I was planning on using Clustered Shared Volume(s) (CSV), but it seems like replication support for these is either not available or brand new in both these products. It looks like CSVs are supported in Double-Take 5.22, see this discussion, but I don't think I want to run something that new in production. Right now, it seems like the best option for me is not to implement CSVs, implement some sort of storage replication, and upgrade to CSVs at a later date once replicating them is more mature. I would love to have live migration, and CSVs are not required for live migration if you are using one LUN per VM, so I guess this is what I'll do. I would prefer to stick to the using the Microsoft Windows Server and Hyper-V tools and features as much as possible. From that standpoint, SteelEye looks more appealing than Double-Take because they make the DataKeeper volume(s) available to the Failover Clustering Manager and then failover clustering is all configured and managed through the native Microsoft tools. Double-Take says that "clustered Hyper-V hosts are not supported," and Double-Take Availability itself seems to be what is used for the actual clustering and failover. Does anyone know if any of these replication tools work with more than two hosts in the cluster? All the information I can find on the web only uses two hosts in their examples. Are there any better tools than SteelEye and Double-Take for doing what I am trying to do, which is eliminate the storage as as single point of failure? Neverfail, AppAssure, and DataCore all seem to offer similar functionality, but they don't seems to be as popular as SteelEye and Double-Take. I have seen a number of people suggest using Starwind iSCSI SAN software for the shared storage, which includes replication (and CSV replication at that). There are a couple of reasons I have not seriously considered this route: 1) The company I work for is exclusively a Dell shop and Dell does not have any servers with that I can pack with more than six 3.5" SATA drives. 2) In the future, it could be advantegous for us to not be locked into a particular brand or type of storage and third-party replication softwares all allow replication to heterogeneous storage devices. I am pretty new to iSCSI and clustering, so please let me know if it looks like I am planning something that goes against best practices or overlooking/missing something.

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  • Optimise Apache for EC2 micro instance

    - by Shiyu Sekam
    I'm running apache2 on a EC2 micro instance with ~600 mb RAM. The instance was running for almost a year without problems, but in the last weeks it just keeps crashing, because the server reached MaxClients. The server basically runs few websites, one wordpress blog(not often used), company website(most used) and 2 small sites, which are just internal. The database for the blog runs on RDS, so there's no Mysql running on this web server. When I came to the company, the server already was setup and is running apache + mod_php + prefork. We want to migrate that in the future to a nginx + php-fpm, but it still needs further testing. So for now I have to stick with the old setup. I also use CloudFlare DDOS protection in front of the server, because it was attacked a couple of the times in the last weeks. My company don't want to pay money for a better web server at this point, so I have to stick with the micro instance also. Additionally the code for the website we run is really bad and slow and sometimes a single page load can take up to 15 seconds. The whole website is dynamic and written in PHP, so caching isn't really an option here. It's a customized search for users. I've already turned off KeepAlive, which improved the performance a little bit. My prefork config looks like the following: StartServers 2 MinSpareServers 2 MaxSpareServers 5 ServerLimit 10 MaxClients 10 MaxRequestsPerChild 100 The server just becomes unresponsive after a while running and I've run the following command to see how many connections there are: netstat | grep http | wc -l 75 Trying to restart apache helps for a short moment, but after that a while the apache process(es) become unresponsive again. I've the following modules enabled(output of apache2ctl -M) Loaded Modules: core_module (static) log_config_module (static) logio_module (static) version_module (static) mpm_prefork_module (static) http_module (static) so_module (static) alias_module (shared) authz_host_module (shared) deflate_module (shared) dir_module (shared) expires_module (shared) mime_module (shared) negotiation_module (shared) php5_module (shared) rewrite_module (shared) setenvif_module (shared) ssl_module (shared) status_module (shared) Syntax OK apache2.conf # Security ServerTokens OS ServerSignature On TraceEnable On ServerName "web.example.com" ServerRoot "/etc/apache2" PidFile ${APACHE_PID_FILE} Timeout 30 KeepAlive off User www-data Group www-data AccessFileName .htaccess <Files ~ "^\.ht"> Order allow,deny Deny from all Satisfy all </Files> <Directory /> Options FollowSymLinks AllowOverride None </Directory> DefaultType none HostnameLookups Off ErrorLog /var/log/apache2/error.log LogLevel warn EnableSendfile On #Listen 80 Include /etc/apache2/mods-enabled/*.load Include /etc/apache2/mods-enabled/*.conf Include /etc/apache2/ports.conf LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %b" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent Include /etc/apache2/conf.d/*.conf Include /etc/apache2/sites-enabled/*.conf Vhost of main site <VirtualHost *:80> ServerName www.example.com ## Vhost docroot DocumentRoot /srv/www/jenkins/Web ## Directories, there should at least be a declaration for /srv/www/jenkins/Web <Directory /srv/www/jenkins/Web> AllowOverride All Order allow,deny Allow from all </Directory> ## Load additional static includes ## Logging ErrorLog /var/log/apache2/www.example.com.error.log LogLevel warn ServerSignature Off CustomLog /var/log/apache2/www.example.com.access.log combined ## Rewrite rules RewriteEngine On RewriteCond %{HTTP_HOST} !^www.example.com$ RewriteRule ^.*$ http://www.example.com%{REQUEST_URI} [R=301,L] ## Server aliases ServerAlias www.example.invalid ServerAlias example.com ## Custom fragment <Location /srv/www/jenkins/Web/library> Order Deny,Allow Deny from all </Location> <Files ~ "^\.(.+)"> Order deny,allow deny from all </Files> </VirtualHost>

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  • How to use iptables to forward all data from an IP to a Virtual Machine

    - by jro
    OK, in an attempt to get some response, a TL;DR version. I know that the following command: iptables -A PREROUTING -t nat -i eth0 --dport 80 --source 1.1.1.1 -j REDIRECT --to-port 8080 ... will redirect all traffic from port 80 to port 8080. The problem is that I have to do this for every port that is to be redirected. To be future-proof, I want all ports for an IP to be redirected to a different (internal) IP, so that if one might decide to enable SSH, they can directly connect without worrying about iptables. What is needed to reliable forward all traffic from an external IP, to an internal IP, and vice versa? Extended version I've scoured the internet for this, but I never got a solid answer. What I have is one physical server (HOST), with several virtual machines (VM) that need traffic redirected to them. Just getting it to work with a single machine is enough for now. The VM's run under VirtualBox, and are set to use a host-only adapter (vboxnet0). Everything seems to work, but it is greatly lagging. Both the host (CentOS 5.6) and the guest (Ubuntu 10.04) machine are running Linux. What I did was the following: Configure the VM to have a static IP in the network of the vboxnet0 adapter. Add an IP alias to the host, registering to the dedicated (outside) IP. Setup iptables to allow traffic to come through (via sysctl). Configure iptables to DNAT and SNAT data from a given IP address to the internal address. iptables commands: sudo iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT sudo iptables -A POSTROUTING -t nat -j MASQUERADE iptables -t nat -I PREROUTING -d $OUT_IP -I eth0 -j DNAT --to-destination $IN_IP iptables -t nat -I POSTROUTING -s $IN_IP -o eth0 -j SNAT --to-source $OUT_IP Now the site works, but is really, really slow. I'm hoping I missed something simple, but I'm out of ideas for now. Some background info: before this, the site was working with basic port forwarding. E.g. port 80 was mapped to port 8080 using iptables. In VirtualBox (having the network adapter configured as NAT), a port forwarding the other way around made things work beautifully. The problem was twofold: first, multiple ports needed to be forwarded (for admin interfaces, https, ssh, etc). Second, it only allowed one IP address to use port 80. To resolve things, multiple external IP addresses are used for different (sub)domains. Likewise, the "VirtualBox" network will contain the virtual machines: DNS Ext. IP Adapter VM "VirtalBox" IP ------------------------------------------------------------------ a.example.com 1.1.1.1 eth0:1 vm_guest_1 192.168.56.1 b.example.com 2.2.2.2 eth0:2 vm_guest_2 192.168.56.2 c.example.com 3.3.3.3 eth0:3 vm_guest_3 192.168.56.3 And so on. Put simply, the goal is to channel all traffic from a.example.com to vm_guest_1 (of put differently, from 1.1.1.1 to 192.168.56.1). And achieve this with an acceptable speed :).

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  • I am getting a 400 Bad Request error when using Nginx and PHP-FPM, why?

    - by Bob
    I am trying to run a website (that requires PHP - it technically doesn't require MySQL at this time, but it may sometime in the near future as I continue developing it, so I went ahead and installed that as well) using nginx 1.2.4 and PHP-FPM 5.3.3 on Ubuntu 12.04.1 LTS. As far as I know, I haven't done anything wrong, but clearly something is not quite right - I seem to be getting a 400 Bad Request error whenever I try to browse to my website. I've been mostly following one guide, and I've done more or less everything it recommends, except for not setting up PHP-FPM to use a Unix Socket and I used service as opposed to /etc/init.d/ when starting/stopping nginx, PHP, and MySQL. Anyways, here are my relevant configuration files (I have only censored personal/sensitive details, like my domain name - which contains my real name): /etc/nginx/nginx.conf user www-data; worker_processes 4; pid /var/run/nginx.pid; events { worker_connections 768; # multi_accept on; } http { ## # Basic Settings ## sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 15; types_hash_max_size 2048; # server_tokens off; # server_names_hash_bucket_size 64; # server_name_in_redirect off; include /etc/nginx/mime.types; default_type application/octet-stream; ## # Logging Settings ## access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; ## # Gzip Settings ## gzip on; gzip_disable "msie6"; # gzip_vary on; # gzip_proxied any; # gzip_comp_level 6; # gzip_buffers 16 8k; # gzip_http_version 1.1; # gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; ## # nginx-naxsi config ## # Uncomment it if you installed nginx-naxsi ## #include /etc/nginx/naxsi_core.rules; ## # nginx-passenger config ## # Uncomment it if you installed nginx-passenger ## #passenger_root /usr; #passenger_ruby /usr/bin/ruby; ## # Virtual Host Configs ## include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; } /etc/nginx/sites-enabled/subdomain.mydomain.net server { listen 80; # listen for IPv4 listen [::]:80; # listen for IPv6 server_name www.subdomain.mydomain.net subdomain.mydomain.net; access_log /srv/www/subdomain.mydomain.net/logs/access.log; error_log /srv/www/subdomain.mydomain.net/logs/error.log; location / { root /srv/www/subdomain.mydomain.net/public; index index.php; } location ~ \.php$ { try_files $uri =400; include fastcgi_params; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /srv/www/subdomain.mydomain.net/public$fastcgi_script_name; } } All the directories listed in the configuration files above are correct on my server (to the extent of my knowledge). I have not included /etc/php5/fpm/pool.d/www.conf or /etc/php5/fpm/php.ini in this post as they're rather long, but I have posted them on Pastebin: http://pastebin.com/ensErJD8 and http://pastebin.com/T23dt7vM, respectively. Although, the only thing I've changed in either of the two files was in php.ini, where I set expose_php to off so as to hide the .php file extension from users. What can I do to resolve my issue? Please let me know if I need to supply any additional details.

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  • Hoster not fulfilling contract: how to get money back?

    - by plua
    For several years, we have as a small webdesign company rented a dedicated server at a large hosting provider. They had several support levels. When we signed up for this, we had very limited in-house knowledge about server maintenance, and were very worried about the security of our server. We therefore took one of the more expensive support packages. An important aspect in this were these claims: [PROVIDER] verifies the availability of the latest security updates and sends you a notification to see if you are interested to have them installed [PROVIDER] verifies the availability of the latest supported software updates and sends you a notification to see if you are interested to have them installed These items were clearly stated on their website as being part of the advantage of this package.; With not enough knowledge about installing and updating such software on a Linux server, we decided to go for this package. We paid a premium of $50 per month over the maintenance package that is next in line ($100 vs $50). Over the years, we have paid several thousand dollars for this service. Then came the moment that I learned more and more about server management. And I found out step by step that our server was horrendously outdated! We had an OS that was hardly updated, our anti-virus was not working because it needed certain more recent packages on the OS, and in general there were a whole bunch of security vulnerabilities and fixes that were lacking. Shocked, I wrote the provider. Turns out, they decided unilaterally that they would not send out any notifications to clients because clients would get too many e-mails. This is a quote from their explanation: [...] We have decided not to spam its clients with OS and security updates and only install them whenever asked by the client I was shocked! They had never mentioned that they would drop this service, and in fact the claims about updating their clients through e-mail was still on their website, after they apparently stopped doing this years ago! Upon finding this out, I requested they refund all that we have paid as a premium over the other package, and make it available as future credit with their own company. I thought this was a very reasonable request. However, they said they would only go back one year and provide credit for this one year. Mails went back and forth, but they were not willing to give credit for the whole period, which I felt I was entitled to. So ultimately I left the hosting company, and filed a complaint with the BBB a while ago. Now, I am not the kind of person who runs to a lawyer for any minor thing, but in this case I am really considering taking action. I have been paying for years for a service I did not receive (the premium package had a few other pluses, but we took it primarily for these two points, and I can prove that we did not use the other benefits). For our small company the hosting costs were a very large part of our budget, and I feel it is very unfair how this large provider just does not care about not fulfilling its obligations. So my question is: what action should I take? Is a lawyer the only next step, or are there other suggestions? And am I right here to claim this money, or are they right that there is some sort of statue of limitations on such claims? Any feedback is appreciated.

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  • Integrating POP3 client functionality into a C# application?

    - by flesh
    I have a web application that requires a server based component to periodically access POP3 email boxes and retrieve emails. The service then needs to process the emails which will involve: Validating the email against some business rules (does it contain a valid reference in the subject line, which user sent the mail, etc.) Analysing and saving any attachments to disk Take the email body and attachment details and create a new item in the database Or update an existing item where the reference matches the incoming email subject line What is the best way to approach this? I really don't want to have to write a POP3 client from scratch, but I need to be able to customize the processing of emails. Ideally I would be able to plug in some component that does the access and retrieval for me, returning arrays of attachments, body text, subject line, etc. ready for my processing... [ UPDATE: Reviews ] OK, so I have spent a fair amount of time looking into (mainly free) .NET POP3 libraries so I thought I'd provide a short review of some of those mentioned below and a few others: Pop3.net - free - works OK, very basic in terms of functionality provided. This is pretty much just the POP3 commands and some base64 encoding, but it's very straight forward - probably a good introduction Pop3 Wizard - commercial / some open source code - couldn't get this to build, missing DLLs, I wouldn't bother with this C#Mail - free - works well, comes with Mime parser and SMTP client, however the comments are in Japanese (not a big deal) and it didn't work with SSL 'out of the box' - I had to change the SslStream constructor after which it worked no problem OpenPOP - free - hasn't been updated for about 5 years so it's current state is .NET 1.0, doesn't support SSL but that was no problem to resolve - I just replaced the existing stream with an SslStream and it worked. Comes with Mime parser. Of the free libraries, I'd go for C#Mail or OpenPOP. I looked at a few commercial libraries: Chillkat, Rebex, RemObjects, JMail.net. Based on features, price and impression of the company I would probably go for Rebex and may in the future if my requirements change or I run into production issues with either of C#Mail or OpenPOP. In case anyone's needs it, this is the replacement SslStream constructor that I used to enable SSL with C#Mail and OpenPOP: SslStream stream = new SslStream(clientSocket.GetStream(), false, delegate(object sender, X509Certificate cert, X509Chain chain, SslPolicyErrors errors) { return true; });

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  • Automatically extracting inline XSD from WSDL into XSD file(s)

    - by Steven Geens
    I am using a third party Web Service whose definition and implementation are beyond my control. This web service will change in the future. The Web Service should be used to generate an XML file which contains some of the same data (represented by the same XSD types) as the Web Service plus some extra information generated by the program. My approach: create my own XSD referring to the XSD definitions of the WSDL of the called web service (This XSD also includes XSD types for the extra information obviously.) use a Java XML databinding framework (like ADB or JiXB) to generate the databinding classes from my own XSD file from step 1 use a Java SOAP framework (like Axis2 or CXF) with the same databinding framework to generate the databinding classes from the WSDL (This would enable me to use the objects retrieved by the web service directly in the generation of the XML.) The XSD types I am going to use in my own XSD file, but are defined in the WSDL, are subject to change. Whenever they change, I would like to automatically process the XSD and WSDL databinding again. (If the change is significant enough, this might trigger some development effort.(But usually not.)) My problem: In step 1 I need an XSD referring to the same types as used by the Web Service. The WSDL is referring to another WSDL, which is referring to another WSDL etc. Eventually there is an WSDL with the needed inline XSD types. As far as I know there is no way to directly reference the inline XSD types of a WSDL from an XSD. The approach I would think most viable, is to include an extra step in the automatic processing (before the databinding) that extracts the inline XSD from the WSDL into other XSD file(s). These other XSD file(s) can then be referred to by my own XSD file. Things I'd like to avoid: Manually copy pasting the inline XSD into an XSD file (I am looking for an automatic process.) Any manual steps.(Like the determining the WSDL that contains the inline types manually.(The location of that WSDL does change as well.)) Using xsd:any in my own XSD. I would like my own XSD file to be correct. Using a non-Java technology(like .NET) Huge amounts of implementation (but hints on how you would implement such an extraction are welcome anyway) PS: I found some similar questions, but they all had responses like: WTH would you want to do that? That is the reason for my rather large background story.

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  • MVC2 Client validation with Annotations in View with RenderAction

    - by Olle
    I'm having problem with client side validation on a View that renders a dropdownlist with help of a Html.RenderAction. I have two controllers. SpecieController and CatchController and I've created ViewModels for my views. I want to keep it as DRY as possible and I will most probably need a DropDownList for all Specie elsewhere in the near future. When I create a Catch i need to set a relationship to one specie, I do this with an id that I get from the DropDownList of Species. ViewModels.Catch.Create [Required] public int Length { get; set; } [Required] public int Weight { get; set; } [Required] [Range(1, int.MaxValue)] public int SpecieId { get; set; } ViewModels.Specie.List public DropDownList(IEnumerable<SelectListItem> species) { this.Species = species; } public IEnumerable<SelectListItem> Species { get; private set; } My View for the Catch.Create action uses the ViewModels.Catch.Create as a model. But it feels that I'm missing something in the implemetation. What I want in my head is to connect the selected value in the DropDownList that comes from the RenderAction to my SpecieId. View.Catch.Create <div class="editor-label"> <%: Html.LabelFor(model => model.SpecieId) %> </div> <div class="editor-field"> <%-- Before DRY refactoring, works like I want but not DRY <%: Html.DropDownListFor(model => model.SpecieId, Model.Species) %> --%> <% Html.RenderAction("DropDownList", "Specie"); %> <%: Html.ValidationMessageFor(model => model.SpecieId) %> </div> CatchController.Create [HttpPost] public ActionResult Create(ViewModels.CatchModels.Create myCatch) { if (ModelState.IsValid) { // Can we make this StronglyTyped? int specieId = int.Parse(Request["Species"]); // Save to db Catch newCatch = new Catch(); newCatch.Length = myCatch.Length; newCatch.Weight = myCatch.Weight; newCatch.Specie = SpecieService.GetById(specieId); newCatch.User = UserService.GetUserByUsername(User.Identity.Name); CatchService.Save(newCatch); } This scenario works but not as smooth as i want. ClientSide validation does not work for SpecieId (after i refactored), I see why but don't know how I can ix it. Can I "glue" the DropDownList SelectedValue into myCatch so I don't need to get the value from Request["Species"] Thanks in advance for taking your time on this.

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  • Django: What's an awesome plugin to maintain images in the admin?

    - by meder
    I have an articles entry model and I have an excerpt and description field. If a user wants to post an image then I have a separate ImageField which has the default standard file browser. I've tried using django-filebrowser but I don't like the fact that it requires django-grappelli nor do I necessarily want a flash upload utility - can anyone recommend a tool where I can manage image uploads, and basically replace the file browse provided by django with an imagepicking browser? In the future I'd probably want it to handle image resizing and specify default image sizes for certain article types. Edit: I'm trying out adminfiles now but I'm having issues installing it. I grabbed it and added it to my python path, added it to INSTALLED_APPS, created the databases for it, uploaded an image. I followed the instructions to modify my Model to specify adminfiles_fields and registered but it's not applying in my admin, here's my admin.py for articles: from django.contrib import admin from django import forms from articles.models import Category, Entry from tinymce.widgets import TinyMCE from adminfiles.admin import FilePickerAdmin class EntryForm( forms.ModelForm ): class Media: js = ['/media/tinymce/tiny_mce.js', '/media/tinymce/load.js']#, '/media/admin/filebrowser/js/TinyMCEAdmin.js'] class Meta: model = Entry class CategoryAdmin(admin.ModelAdmin): prepopulated_fields = { 'slug': ['title'] } class EntryAdmin( FilePickerAdmin ): adminfiles_fields = ('excerpt',) prepopulated_fields = { 'slug': ['title'] } form = EntryForm admin.site.register( Category, CategoryAdmin ) admin.site.register( Entry, EntryAdmin ) Here's my Entry model: class Entry( models.Model ): LIVE_STATUS = 1 DRAFT_STATUS = 2 HIDDEN_STATUS = 3 STATUS_CHOICES = ( ( LIVE_STATUS, 'Live' ), ( DRAFT_STATUS, 'Draft' ), ( HIDDEN_STATUS, 'Hidden' ), ) status = models.IntegerField( choices=STATUS_CHOICES, default=LIVE_STATUS ) tags = TagField() categories = models.ManyToManyField( Category ) title = models.CharField( max_length=250 ) excerpt = models.TextField( blank=True ) excerpt_html = models.TextField(editable=False, blank=True) body_html = models.TextField( editable=False, blank=True ) article_image = models.ImageField(blank=True, upload_to='upload') body = models.TextField() enable_comments = models.BooleanField(default=True) pub_date = models.DateTimeField(default=datetime.datetime.now) slug = models.SlugField(unique_for_date='pub_date') author = models.ForeignKey(User) featured = models.BooleanField(default=False) def save( self, force_insert=False, force_update= False): self.body_html = markdown(self.body) if self.excerpt: self.excerpt_html = markdown( self.excerpt ) super( Entry, self ).save( force_insert, force_update ) class Meta: ordering = ['-pub_date'] verbose_name_plural = "Entries" def __unicode__(self): return self.title Edit #2: To clarify I did move the media files to my media path and they are indeed rendering the image area, I can upload fine, the <<<image>>> tag is inserted into my editable MarkItUp w/ Markdown area but it isn't rendering in the MarkItUp preview - perhaps I just need to apply the |upload_tags into that preview. I'll try adding it to my template which posts the article as well.

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  • In Email, Image (img) Source (src) Tags are rewritten as relative links. How to fix?

    - by Noah Goodrich
    I'm working on sending out an html based email, and every time it sends the image src tags and some of the anchor href tags are modified to be relative url's. Update 2: This is happening between when the body of the email is generated and sent and when it arrives in my inbox. Update: I am using Postfix on a LAMPP server. In addition, I am using Zend_Mail to send the emails out. For example, I have a link: src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/header.jpg" And it gets rewritten as: src="../../../../images/email/highpoint_2009_04/header.jpg" What can cause this to occur and how is it corrected? Email headers: Return-Path: <[email protected]> X-Original-To: [email protected] Delivered-To: [email protected] Received: by mail.example.com (Postfix, from userid 0) id 6BF012252; Tue, 14 Apr 2009 12:15:20 -0600 (MDT) To: Gabriel <[email protected]> Subject: Free Map to Sales Success From: Somebody <[email protected]> Date: Tue, 14 Apr 2009 12:15:20 -0600 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: multipart/related Content-Disposition: inline Message-Id: <[email protected]> Original content to be sent out: <table align="center" border="0" cellpadding="0" cellspacing="0" width="600"> <tbody> <tr> <td valign="top"> <a href="http://www.furnituretrainingcompany.com"> <img moz-do-not-send="true" alt="The Furniture Training Company - Know More. Sell More." src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/header.jpg" border="0" height="123" width="600"> </a> </td> </tr> </tbody> </table> <table align="center" border="0" cellpadding="0" cellspacing="0" width="600"> <tbody> <tr> <td valign="top"><img alt="Visit us at High Point to receive your free training poster" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/hero.jpg" moz-do-not-send="true" height="150" width="600"><br> </td> </tr> </tbody> </table> <table align="center" border="0" cellpadding="0" cellspacing="0" width="600"> <tbody> <tr> <td bgcolor="#ffffff" valign="top"><img alt="" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/spacer_content_left.jpg" moz-do-not-send="true" height="30" width="30"><br> </td> <td bgcolor="#ffffff" valign="top"><font originaltag="yes" style="font-size: 9px; font-family: Verdana,Arial,Helvetica,sans-serif;" color="#000000" face="Verdana, Arial, Helvetica, sans-serif" size="1"><big><big><big><big><small><big><b>See you at Market</b></big><br> </small></big></big></big></big></font> <font originaltag="yes" style="font-size: 9px; font-family: Verdana,Arial,Helvetica,sans-serif;" color="#000000" face="Verdana, Arial, Helvetica, sans-serif" size="1"><big><big><big><big><small><br> </small></big></big></big></big></font><small><font face="Helvetica, Arial, sans-serif">Visit our space to get your free Map to Sales Success poster! This unique 24 X 36 color poster is your guide to developing high volume salespeople with larger tickets. Find us in the new NHFA Retailer Resource Center located in the Plaza. <br> <br> Don&#8217;t miss Mark Lacy&#8217;s entertaining seminar "Help Wanted! My Sales Associates Can&#8217;t Sell Water to a Thirsty Camel." He&#8217;ll reveal powerful secrets for turning sales associates into furniture experts that will sell. See him Saturday, April 25th at 11:30 AM in the seminar room of the new NHFA Retail Resource Center in the Plaza. <br> <br> Stop by our space to learn how our ingenious internet-delivered training courses are easy to use, guaranteed to work, and cheaper than the daily donuts. Over 95% report increased sales. <br> <br> Plan to see us at High Point. </font></small> <font originaltag="yes" style="font-size: 9px; font-family: Verdana,Arial,Helvetica,sans-serif;" color="#000000" face="Verdana, Arial, Helvetica, sans-serif" size="1"><big><big><big><big><small><small><br> <br> <br> <br> </small></small></big></big></big></big></font><small><font originaltag="yes" style="font-size: 9px; font-family: Verdana,Arial,Helvetica,sans-serif;" color="#000000" face="Verdana, Arial, Helvetica, sans-serif" size="1"><big><big><big><small> </small></big></big></big></font></small> <a href="http://www.furnituretrainingcompany.com/map"><img alt="Find out more" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/image_content_left.jpg" moz-do-not-send="true" border="0" height="67" width="326"></a><br> <br> </td> <td bgcolor="#ffffff" valign="top"> <img alt="" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/spacer_content_middle.jpg" moz-do-not-send="true" height="28" width="28"><br> </td> <td bgcolor="#ffffff" valign="top"><img alt="Roadmap to Sales Success poster" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/image_content_right.jpg" moz-do-not-send="true" height="267" width="186"><br> <font face="Helvetica, Arial, sans-serif"><small><font originaltag="yes" style="font-size: 9px; font-family: Verdana,Arial,Helvetica,sans-serif;" color="#000000" size="1"><big><big><big><small><b>Road Map to Sales Success<br> </b><br> </small></big></big></big></font>This beautiful poster is yours free for simply stopping by and visiting with us at High Point. <span class="moz-txt-slash">Our space is located inside the </span>new NHFA Retailer Resource Center in the Plaza Suites, 222 South Main St, 1st Floor. We will be at market from Sat April 25th until Thur April 30th. </small></font><br> </td> <td bgcolor="#ffffff" valign="top"><img alt="" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/spacer_content_right.jpg" moz-do-not-send="true" height="30" width="30"><br> <br> </td> </tr> </tbody> </table> <table align="center" border="0" cellpadding="0" cellspacing="0" width="600"> <tbody> <tr> <td bgcolor="#ffffff" valign="top"><img alt="" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/disclaimer_divider.jpg" moz-do-not-send="true" height="25" width="600"><br> </td> </tr> </tbody> </table> <table align="center" border="0" cellpadding="0" cellspacing="0" width="600"> <tbody> <tr> <td bgcolor="#ffffff" valign="top"><img alt="" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/spacer_disclaimer_left.jpg" moz-do-not-send="true"></td> <td bgcolor="#ffffff" valign="top"><img alt="" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/spacer_disclaimer_middle.jpg" moz-do-not-send="true"><br> <font originaltag="yes" style="font-size: 9px; font-family: Verdana,Arial,Helvetica,sans-serif;" color="#666666" face="Verdana, Arial, Helvetica, sans-serif" size="1"><big><big><big><big><small><small><small>If you are not attending the High Point market in April but would still like to receive a free Road Map to Sales Success poster visit us on the web at <u><a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="http://www.furnituretrainingcompany.com">www.furnituretrainingcompany.com</a></u>, or to speak with a Furniture Training Company representative, call toll free (866) 755-5996. We do not offer free shipping outside of the U.S. and Canada. Retailers outside of the U.S. and Canada may call for more information. Limit one free Road Map to Sales Success per company. Other copies of the poster may be purchased on our web site.<br> <br> </small></small></small></big></big></big></big></font> <font color="#666666"><small><font originaltag="yes" style="font-size: 9px; font-family: Verdana,Arial,Helvetica,sans-serif;" face="Verdana, Arial, Helvetica, sans-serif" size="1"><big><big><big><small><small>We hope you found this message to be useful. However, if you'd rather not receive future emails of this sort from The Furniture Training Company, please <a moz-do-not-send="true" href="http://www.furnituretraining.com/contact">click here to unsubscribe</a>.<br> <br> </small></small></big></big></big></font></small><small><font originaltag="yes" style="font-size: 9px; font-family: Verdana,Arial,Helvetica,sans-serif;" face="Verdana, Arial, Helvetica, sans-serif" size="1"><big><big><big><small><small>&copy;Copyright 2009 The Furniture Training Company.<br> 1770 North Research Park Way, <br> North Logan, UT 84341. <br> All Rights Reserved.</small></small></big></big></big></font></small></font><br> </td> <td bgcolor="#ffffff" valign="top"><img alt="" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/spacer_disclaimer_right.jpg" moz-do-not-send="true"></td> </tr> </tbody> </table> <table align="center" border="0" cellpadding="0" cellspacing="0" width="600"> <tbody> <tr> <td bgcolor="#ffffff" valign="top"><img alt="" src="http://www.furnituretrainingcompany.com/images/email/highpoint_2009_04/footer.jpg" moz-do-not-send="true"> </td> </tr> </tbody> </table> <br> <br> Content that gets sent: <table border=3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"600" al= ign=3D"center">=0D=0A<tbody>=0D=0A<tr>=0D=0A<td valign=3D"top"><a href= =3D"http://www.furnituretrainingcompany.com"> <img src=3D"http://www.fur= nituretrainingcompany.com/images/email/highpoint_2009_04/header.jpg" bor= der=3D"0" alt=3D"The Furniture Training Company - Know More. Sell More."= width=3D"600" height=3D"123" /> </a></td>=0D=0A</tr>=0D=0A</tbody>=0D= =0A</table>=0D=0A<table border=3D"0" cellspacing=3D"0" cellpadding=3D"0"= width=3D"600" align=3D"center">=0D=0A<tbody>=0D=0A<tr>=0D=0A<td valign= =3D"top"><img src=3D"http://www.furnituretrainingcompany.com/images/emai= l/highpoint_2009_04/hero.jpg" alt=3D"Visit us at High Point to receive y= our free training poster" width=3D"600" height=3D"150" /><br /></td>=0D= =0A</tr>=0D=0A</tbody>=0D=0A</table>=0D=0A<table border=3D"0" cellspacin= g=3D"0" cellpadding=3D"0" width=3D"600" align=3D"center">=0D=0A<tbody>= =0D=0A<tr>=0D=0A<td valign=3D"top" bgcolor=3D"#ffffff"><img src=3D"http:= //www.furnituretrainingcompany.com/images/email/highpoint_2009_04/spacer= _content_left.jpg" alt=3D"" width=3D"30" height=3D"30" /><br /></td>=0D= =0A<td valign=3D"top" bgcolor=3D"#ffffff"><span style=3D"font-size: xx-s= mall; font-family: Verdana,Arial,Helvetica,sans-serif; color: #000000;">= <big><big><big><big><small><big><strong>See you at Market</strong></big>= <br /> </small></big></big></big></big></span> <span style=3D"font-size:= xx-small; font-family: Verdana,Arial,Helvetica,sans-serif; color: #0000= 00;"><big><big><big><big><small><br /> </small></big></big></big></big><= /span><small><span style=3D"font-family: Helvetica,Arial,sans-serif;">Vi= sit our space to get your free Map to Sales Success poster! This unique= 24 X 36 color poster is your guide to developing high volume salespeopl= e with larger tickets. Find us in the new NHFA Retailer Resource Center= located in the Plaza. <br /> <br /> Don&rsquo;t miss Mark Lacy&rsquo;s= entertaining seminar "Help Wanted! My Sales Associates Can&rsquo;t Sell= Water to a Thirsty Camel." He&rsquo;ll reveal powerful secrets for turn= ing sales associates into furniture experts that will sell. See him Satu= rday, April 25th at 11:30 AM in the seminar room of the new NHFA Retail= Resource Center in the Plaza. <br /> <br /> Stop by our space to learn= how our ingenious internet-delivered training courses are easy to use,= guaranteed to work, and cheaper than the daily donuts. Over 95% report= increased sales. <br /> <br /> Plan to see us at High Point. </span></s= mall> <span style=3D"font-size: xx-small; font-family: Verdana,Arial,Hel= vetica,sans-serif; color: #000000;"><big><big><big><big><small><small><b= r /> <br /> <br /> <br /> </small></small></big></big></big></big></span= ><small><span style=3D"font-size: xx-small; font-family: Verdana,Arial,H= elvetica,sans-serif; color: #000000;"><big><big><big><small> </small></b= ig></big></big></span></small> <a href=3D"http://www.furnituretrainingco= mpany.com/map"><img src=3D"http://www.furnituretrainingcompany.com/image= s/email/highpoint_2009_04/image_content_left.jpg" border=3D"0" alt=3D"Fi= nd out more" width=3D"326" height=3D"67" /></a><br /> <br /></td>=0D=0A<= td valign=3D"top" bgcolor=3D"#ffffff"><img src=3D"http://www.furnituretr= ainingcompany.com/images/email/highpoint_2009_04/spacer_content_middle.j= pg" alt=3D"" width=3D"28" height=3D"28" /><br /></td>=0D=0A<td valign=3D= "top" bgcolor=3D"#ffffff"><img src=3D"http://www.furnituretrainingcompan= y.com/images/email/highpoint_2009_04/image_content_right.jpg" alt=3D"Roa= dmap to Sales Success poster" width=3D"186" height=3D"267" /><br /> <spa= n style=3D"font-family: Helvetica,Arial,sans-serif;"><small><span style= =3D"font-size: xx-small; color: #000000;"><big><big><big><small><strong>= Road Map to Sales Success<br /> </strong><br /> </small></big></big></bi= g></span>This beautiful poster is yours free for simply stopping by and= visiting with us at High Point. <span class=3D"moz-txt-slash">Our space= is located inside the </span>new NHFA Retailer Resource Center in the P= laza Suites, 222 South Main St, 1st Floor. We will be at market from Sat= April 25th until Thur April 30th. </small></span><br /></td>=0D=0A<td v= align=3D"top" bgcolor=3D"#ffffff"><img src=3D"http://www.furnituretraini= ngcompany.com/images/email/highpoint_2009_04/spacer_content_right.jpg" a= lt=3D"" width=3D"30" height=3D"30" /><br /> <br /></td>=0D=0A</tr>=0D=0A= </tbody>=0D=0A</table>=0D=0A<table border=3D"0" cellspacing=3D"0" cellpa= dding=3D"0" width=3D"600" align=3D"center">=0D=0A<tbody>=0D=0A<tr>=0D=0A= <td valign=3D"top" bgcolor=3D"#ffffff"><img src=3D"http://www.furnituret= rainingcompany.com/images/email/highpoint_2009_04/disclaimer_divider.jpg= " alt=3D"" width=3D"600" height=3D"25" /><br /></td>=0D=0A</tr>=0D=0A</t= body>=0D=0A</table>=0D=0A<table border=3D"0" cellspacing=3D"0" cellpaddi= ng=3D"0" width=3D"600" align=3D"center">=0D=0A<tbody>=0D=0A<tr>=0D=0A<td= valign=3D"top" bgcolor=3D"#ffffff"><img src=3D"http://www.furnituretrai= ningcompany.com/images/email/highpoint_2009_04/spacer_disclaimer_left.jp= g" alt=3D"" /></td>=0D=0A<td valign=3D"top" bgcolor=3D"#ffffff"><img src= =3D"http://www.furnituretrainingcompany.com/images/email/highpoint_2009_= 04/spacer_disclaimer_middle.jpg" alt=3D"" /><br /> <span style=3D"font-s= ize: xx-small; font-family: Verdana,Arial,Helvetica,sans-serif; color: #= 666666;"><big><big><big><big><small><small><small>If you are not attendi= ng the High Point market in April but would still like to receive a free= Road Map to Sales Success poster visit us on the web at <span style=3D"= text-decoration: underline;"><a class=3D"moz-txt-link-abbreviated" href= =3D"http://www.furnituretrainingcompany.com">www.furnituretrainingcompan= y.com</a></span>, or to speak with a Furniture Training Company represen= tative, call toll free (866) 755-5996. We do not offer free shipping out= side of the U.S. and Canada. Retailers outside of the U.S. and Canada ma= y call for more information. Limit one free Road Map to Sales Success pe= r company. Other copies of the poster may be purchased on our web site.<= br /> <br /> </small></small></small></big></big></big></big></span> <sp= an style=3D"color: #666666;"><small><span style=3D"font-size: xx-small;= font-family: Verdana,Arial,Helvetica,sans-serif;"><big><big><big><small= ><small>We hope you found this message to be useful. However, if you'd r= ather not receive future emails of this sort from The Furniture Training= Company, please <a href=3D"http://www.furnituretraining.com/contact">cl= ick here to unsubscribe</a>.<br /> <br /> </small></small></big></big></= big></span></small><small><span style=3D"font-size: xx-small; font-famil= y: Verdana,Arial,Helvetica,sans-serif;"><big><big><big><small><small>&co= py;Copyright 2009 The Furniture Training Company.<br /> 1770 North Resea= rch Park Way, <br /> North Logan, UT 84341. <br /> All Rights Reserved.<= /small></small></big></big></big></span></small></span><br /></td>=0D=0A= <td valign=3D"top" bgcolor=3D"#ffffff"><img src=3D"http://www.furnituret= rainingcompany.com/images/email/highpoint_2009_04/spacer_disclaimer_righ= t.jpg" alt=3D"" /></td>=0D=0A</tr>=0D=0A</tbody>=0D=0A</table>=0D=0A<tab= le border=3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"600" align= =3D"center">=0D=0A<tbody>=0D=0A<tr>=0D=0A<td valign=3D"top" bgcolor=3D"#= ffffff"><img src=3D"http://www.furnituretrainingcompany.com/images/email= /highpoint_2009_04/footer.jpg" alt=3D"" /></td>=0D=0A</tr>=0D=0A</tbody>= =0D=0A</table>=0D=0A<p><br /></p><br><hr><a href=3D'http://localhost/ftc= /app/unsubscribe.php?action=3DoptOut&pid=3D6121&cid=3D19&email=3Dmarkl@f= urnituretrainingcompany.com'>Click to Unsubscribe</a>

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  • Some help needed with setting up the PERFECT workflow for web development with 2-3 guys using subver

    - by Roeland
    Hey guys! I run a small web development company along side with my brother and friend. After doing extensive research I have decided on using subversion for version control. Here is how I currently plan on running typical development. Keep in mind there are 3 of us each in a separate location. I set up an account with springloops (springloops.com) subversion hosting. Each time I work on a new project, I create a repository for it. So lets say in this case I am working on site1. I want to have 3 versions of the site on the internet: Web Development - This is the server me and the other developers publish to. (site1.dev.bythepixel.com) Client Preview - This is the server that we update every few days with a good revision for the client to see. (site1.bythepixel.com) Live Site - The site I publish to when going live (site1.com) Each web development machine (at each location) will have a local copy of xamp running virtual host to allow multiple websites to be worked on. The root of the local copy is set up to be the same as the local copy of the subversion repository. This is set up so we can make small tweaks and preview them immediately. When some work has been done, a commit is made to the repository for the site. I will have the dev site automatically be pushed (its an option in springloops). Then, whenever I feel ready to push to the client site I will do so. Now, I have a few concerns with those work flow: I am using codeigniter currently, and in the config file I generally set the root of the site. Ex. http://www.site1.com. So, it looks like each time I publish to one of the internet servers, I will have to modify the config file? Is there any way to make it so certain files are set for each server? So when I hit publish to client preview it just uploads the config file for the client preview server. I don't want the live site , the client preview site and the dev site to share the same mysql server for a variety of reasons. So does this once again mean that I have to adjust the db server info each time I push to a different site? Does this workflow make sense? If you have any suggestion please let me know. I plan for this to be the work flow I use for the next few year. I just need to put a system in place that allows for future expansion! Thanks a bunch!!

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  • Custom DataAnnotation attribute with datastore access in ASP.NET MVC 2

    - by mare
    I have my application designed with Repository pattern implemented and my code prepared for optional dependency injection in future, if we need to support another datastore. I want to create a custom validation attribute for my content objects. This attribute should perform some kind of datastore lookup. For instance, I need my content to have unique slugs. To check if a Slug already exist, I want to use custom DataAnnotation attribute in my Base content object (instead of manually checking if a slug exists each time in my controller's Insert actions). Attribute logic would do the validation. So far I have come up with this: public class UniqueSlugAttribute : ValidationAttribute { private readonly IContentRepository _repository; public UniqueSlugAttribute(ContentType contentType) { _repository = new XmlContentRepository(contentType); } public override bool IsValid(object value) { if (string.IsNullOrWhiteSpace(value.ToString())) { return false; } string slug = value.ToString(); if(_repository.IsUniqueSlug(slug)) return true; return false; } } part of my Base content class: ... [DataMember] public ContentType ContentType1 { get; set; } [DataMember] [Required(ErrorMessageResourceType = typeof (Localize), ErrorMessageResourceName = "Validation_SlugIsBlank")] [UniqueSlug(ContentType1)] public string Slug { get { return _slug; } set { if (!string.IsNullOrEmpty(value)) _slug = Utility.RemoveIllegalCharacters(value); } } ... There's an error in line [UniqueSlug(ContentType1)] saying: "An attribute argument must be a constant expression, typeof expression or array creation expression of an attribute parameter type." Let me explain that I need to provide the ContentType1 parameter to the Constructor of UniqueSlug class because I use it in my data provider. It is actually the same error that appears if you try do to this on the built-in Required attribute: [Required(ErrorMessageResourceType = typeof (Localize), ErrorMessageResourceName = Resources.Localize.SlugRequired] It does not allow us to set it to dynamic content. In the first case ContentType1 gets known at runtime, in the second case the Resources.Localize.SlugRequired also gets known at runtime (because the Culture settings are assigned at runtime). This is really annoying and makes so many things and implementation scenarios impossible. So, my first question is, how to get rid of this error? The second question I have, is whether you think that I should redesign my validation code in any way?

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  • Application Architecture using WCF and System.AddIn

    - by Silverhalide
    A little background -- we're designing an application that uses a client/server architecture consisting of: A server which loads server-side modules, potentially developed by other teams. A client which loads corresponding client-side modules (also potentially developed by those other teams; each client module corresponds with a server module). The client side communicates with the server side for general coordination, and as well as module specific tasks. (At this point, I think that means client talks to server, client modules talk to server modules.) Environment is .NET 3.5, and client side is WPF. The deployment scenario introduces the potential to upgrade the server, any server-side module, the client, and any client-side module independently. However, being able to "work" using mismatched versions is required. I'm therefore concerned about versioning issues. My thinking so far: A Windows Service for the server. Using System.AddIn for the server to load and communicate with the server modules will give us the greatest flexibility in terms of version compatability between server and server modules. The server and each server module vend WCF services for communication to the client side; communication between the server and a server module, or between two server modules use the AddIn contracts. (One advantage of this is that a module can expose a different interface within the server and outside it.) Similarly, the client uses System.AddIn to find, load, and communicate with the client modules. Client communications with client modules is via the AddIn interface; communications from the client and from client modules to the server side are via WCF. For maximum resilience, each module will run in a separate app-domain. In general, the system has modest performance requirements, so marshalling and crossing process boundaries is not expected to be a performance concern. (Performance requirement is basically summed up by: don't get in the way of the other parts of the system not described here.) My questions are around the idea of having two different communication and versioning models to work with which will be an added burden on our developers. System.AddIn seems quite powerful, but also a little unwieldly. (I'm also unsure of Microsoft's commitment to it in the future.) On the other hand, I'm not thrilled with WCF's versioning capabilities. I have a feeling that it would be possible to implement the System.AddIn view/adapter/contract system within WCF, but being fairly new to both technologies, I would have no idea of where to start. So... Am I on the right track here? Am I doing this the hard way? Are there gotchas I need to be aware of on this road? Thanks.

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  • Using Artificial Intelligence (AI) to predict Stock Prices

    - by akaphenom
    Given a set of datavery similar to the Motley Fool CAPS system, where individual users enter BUY and SELL recommendations on various equities. What I would like to do is show each recommendation and I guess some how rate (1-5) as to whether it was good predictor<5 (ie corellation coeffient = 1) of the future stock price (or eps or whatever) or a horrible predictor (ie corellation coeffient = -1) or somewhere inbetween. Each recommendation is tagged to a particular user, so that can be tracked over time. I can also track market direction (bullish / bearish) based off of something like sp500 price. The components I think that would make sense in the model would be: user direction (long/short) market direction sector of stock The thought is that some users are better in bull markets than bear (and vice versa), and some are better at shorts than longs- and then a cobination the above. I can automatically tag the market direction and sector (based off the market at the time and the equity being recommended). The thought is that I could present a series of screens and allow me to rank each individual recommendation by displaying available data absolute, market and sector out performance for a specfic time period out. I would follow a detailed list for ranking the stocks so that the ranking is as objective as possible. My assumtion is that a single user is right no more than 57% of the time - but who knows. I could load the system and say "Lets rank the recommendation as a predictor of stock value 90 days forward"; and that would represent a very explicit set of rankings. NOW here is the crux - I want to create some sort of machine learning algorithm that can identify patterns over a series of time so that as recommendations stream into the application we maintain a ranking of that stock (ie. similar to correlation coeeficient) as to the likelihood of that recommendation (in addition to the past series of recommendations ) will affect the price. Now here is the super crux. I have never taken an AI class / read an AI book / never mind specific to machine learning. So I cam looking for guidance - sample or description of a similar system I could adapt. Place to look for info or any general help. Or even push me in the right direction to get started... My hope is to implment this with F# and be able to impress my friends with a new skillset in F# with an implementation of machine learnign and potentially something (application / source) I can include in a tech portfolio or blog space; Thank you for any advice in advance.

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  • Entity Attribute Value Database vs. strict Relational Model Ecommerce question

    - by Dr. Zim
    It is safe to say that the EAV/CR database model is bad. That said, Question: What database model, technique, or pattern should be used to deal with "classes" of attributes describing e-commerce products which can be changed at run time? In a good E-commerce database, you will store classes of options (like TV resolution then have a resolution for each TV, but the next product may not be a TV and not have "TV resolution"). How do you store them, search efficiently, and allow your users to setup product types with variable fields describing their products? If the search engine finds that customers typically search for TVs based on console depth, you could add console depth to your fields, then add a single depth for each tv product type at run time. There is a nice common feature among good e-commerce apps where they show a set of products, then have "drill down" side menus where you can see "TV Resolution" as a header, and the top five most common TV Resolutions for the found set. You click one and it only shows TVs of that resolution, allowing you to further drill down by selecting other categories on the side menu. These options would be the dynamic product attributes added at run time. Further discussion: So long story short, are there any links out on the Internet or model descriptions that could "academically" fix the following setup? I thank Noel Kennedy for suggesting a category table, but the need may be greater than that. I describe it a different way below, trying to highlight the significance. I may need a viewpoint correction to solve the problem, or I may need to go deeper in to the EAV/CR. Love the positive response to the EAV/CR model. My fellow developers all say what Jeffrey Kemp touched on below: "new entities must be modeled and designed by a professional" (taken out of context, read his response below). The problem is: entities add and remove attributes weekly (search keywords dictate future attributes) new entities arrive weekly (products are assembled from parts) old entities go away weekly (archived, less popular, seasonal) The customer wants to add attributes to the products for two reasons: department / keyword search / comparison chart between like products consumer product configuration before checkout The attributes must have significance, not just a keyword search. If they want to compare all cakes that have a "whipped cream frosting", they can click cakes, click birthday theme, click whipped cream frosting, then check all cakes that are interesting knowing they all have whipped cream frosting. This is not specific to cakes, just an example.

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  • XML Socket and Regular Socket in Flash/Flex does not send message immediately.

    - by kramer
    I am trying to build a basic RIA where my Flex application client opens an XML socket, sends the xml message "people_list" to server, and prints out the response. I have ruby at the server side and I have successfully set up the security policy stuff. The ruby xml server, successfully accepts the connections from Flex, successfully detects when they are closed and can also send messages to client. But; there is a problem... It cannot receive messages from flex client. The messages sent from flex client are queued and sent as one package when the socket is closed. Therefore, the whole wait-for-request-then-reply thing is not working... This is also -kinda- mentioned in the XMLSocket.send() document, where it is stated that the messages are sent async so; they may be delivered at any time in future. But; I need them to be synced, flushed or whatever. This is the server side code: require 'socket' require 'observer' class Network_Reader_Ops include Observable @@reader_listener_socket = UDPSocket.new @@reader_broadcast_socket = UDPSocket.new @@thread_id def initialize @@reader_broadcast_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_BROADCAST, 1) @@reader_broadcast_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR, 1) @@reader_listener_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR, 1) @@reader_broadcast_socket.bind('', 50050) @@reader_listener_socket.bind('', 50051) @@thread_id = Thread.start do loop do begin text, sender = @@reader_listener_socket.recvfrom_nonblock 1024 print("Knock response recived: ", text) notify_observers text rescue Errno::EAGAIN retry rescue Errno::EWOULDBLOCK retry end end end end def query @@reader_broadcast_socket.send("KNOCK KNOCK", 0, "255.255.255.255", 50050) end def stop Thread.kill @@thread_id end end class XMLSocket_Connection attr_accessor :connection_id def update (data) connection_id.write(data+"\0") end end begin # Set EOL for Flash $/ = '\x00' xml_socket = TCPServer.open('', '4444') security_policy_socket = TCPServer.open('', '843') xml_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR, 1) security_policy_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR, 1) a = Thread.start do network_ops = nil loop { accepted_connection = xml_socket.accept print(accepted_connection.peeraddr, " is accepted\n") while accepted_connection.gets incoming = $_.dump print("Received: ", incoming) if incoming == "<request>readers on network</request>" then network_ops = Network_Reader_Ops.new this_con = XMLSocket_Connection.new this_con.connection_id = accepted_connection network_ops.add_observer this_con network_ops.query end end if not network_ops.nil? then network_ops.delete_observer this_con network_ops.stop network_ops = nil end print(accepted_connection, " is gone\n") accepted_connection.close } end b = Thread.start do loop { accepted_connection = security_policy_socket.accept Thread.start do current_connection = accepted_connection while current_connection.gets if $_ =~ /.*policy\-file.*/i then current_connection.write("<cross-domain-policy><allow-access-from domain="*" to-ports="*" /></cross-domain-policy>\0") end end current_connection.close end } end a.join b.join rescue puts "FAILED" retry end And this is the flex/flash client side code: UPDATE: I have also tried using regular socket and calling flush() method but; the result was same. private var socket:XMLSocket = new XMLSocket(); protected function stopXMLSocket():void { socket.close(); } protected function startXMLSocket():void { socket.addEventListener(DataEvent.DATA, dataHandler); socket.connect(xmlSocketServer_address, xmlSocketServer_port); socket.send("<request>readers on network</request>"); } protected function dataHandler(event:DataEvent):void { mx.controls.Alert.show(event.data); } How do I achieve the described behaviour?

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  • how to use kml file in my code..

    - by zjm1126
    i download a kml file : <?xml version="1.0" encoding="UTF-8"?> <kml xmlns="http://www.opengis.net/kml/2.2"> <Document> <Style id="transGreenPoly"> <LineStyle> <width>1.5</width> </LineStyle> <PolyStyle> <color>7d00ff00</color> </PolyStyle> </Style> <Style id="transYellowPoly"> <LineStyle> <width>1.5</width> </LineStyle> <PolyStyle> <color>7d00ffff</color> </PolyStyle> </Style> <Style id="transRedPoly"> <LineStyle> <width>1.5</width> </LineStyle> <PolyStyle> <color>7d0000ff</color> </PolyStyle> </Style> <Style id="transBluePoly"> <LineStyle> <width>1.5</width> </LineStyle> <PolyStyle> <color>7dff0000</color> </PolyStyle> </Style> <Folder> <name>Placemarks</name> <open>0</open> <Placemark> <name>Simple placemark</name> <description>Attached to the ground. Intelligently places itself at the height of the underlying terrain.</description> <Point> <coordinates>-122.0822035425683,37.42228990140251,0</coordinates> </Point> </Placemark> <Placemark> <name>Descriptive HTML</name> <description><![CDATA[Click on the blue link!<br/><br/> Placemark descriptions can be enriched by using many standard HTML tags.<br/> For example: <hr/> Styles:<br/> <i>Italics</i>, <b>Bold</b>, <u>Underlined</u>, <s>Strike Out</s>, subscript<sub>subscript</sub>, superscript<sup>superscript</sup>, <big>Big</big>, <small>Small</small>, <tt>Typewriter</tt>, <em>Emphasized</em>, <strong>Strong</strong>, <code>Code</code> <hr/> Fonts:<br/> <font color="red">red by name</font>, <font color="#408010">leaf green by hexadecimal RGB</font> <br/> <font size=1>size 1</font>, <font size=2>size 2</font>, <font size=3>size 3</font>, <font size=4>size 4</font>, <font size=5>size 5</font>, <font size=6>size 6</font>, <font size=7>size 7</font> <br/> <font face=times>Times</font>, <font face=verdana>Verdana</font>, <font face=arial>Arial</font><br/> <hr/> Links: <br/> <a href="http://earth.google.com/">Google Earth!</a> <br/> or: Check out our website at www.google.com <hr/> Alignment:<br/> <p align=left>left</p> <p align=center>center</p> <p align=right>right</p> <hr/> Ordered Lists:<br/> <ol><li>First</li><li>Second</li><li>Third</li></ol> <ol type="a"><li>First</li><li>Second</li><li>Third</li></ol> <ol type="A"><li>First</li><li>Second</li><li>Third</li></ol> <hr/> Unordered Lists:<br/> <ul><li>A</li><li>B</li><li>C</li></ul> <ul type="circle"><li>A</li><li>B</li><li>C</li></ul> <ul type="square"><li>A</li><li>B</li><li>C</li></ul> <hr/> Definitions:<br/> <dl> <dt>Google:</dt><dd>The best thing since sliced bread</dd> </dl> <hr/> Centered:<br/><center> Time present and time past<br/> Are both perhaps present in time future,<br/> And time future contained in time past.<br/> If all time is eternally present<br/> All time is unredeemable.<br/> </center> <hr/> Block Quote: <br/> <blockquote> We shall not cease from exploration<br/> And the end of all our exploring<br/> Will be to arrive where we started<br/> And know the place for the first time.<br/> <i>-- T.S. Eliot</i> </blockquote> <br/> <hr/> Headings:<br/> <h1>Header 1</h1> <h2>Header 2</h2> <h3>Header 3</h3> <h3>Header 4</h4> <h3>Header 5</h5> <hr/> Images:<br/> <i>Remote image</i><br/> <img src="http://code.google.com/apis/kml/documentation/googleSample.png"><br/> <i>Scaled image</i><br/> <img src="http://code.google.com/apis/kml/documentation/googleSample.png" width=100><br/> <hr/> Simple Tables:<br/> <table border="1" padding="1"> <tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr> <tr><td>a</td><td>b</td><td>c</td><td>d</td><td>e</td></tr> </table> <br/>]]></description> <Point> <coordinates>-122,37,0</coordinates> </Point> </Placemark> </Folder> <Folder> <name>Google Campus - Polygons</name> <open>0</open> <description>A collection showing how easy it is to create 3-dimensional buildings</description> <Placemark> <name>Building 40</name> <styleUrl>#transRedPoly</styleUrl> <Polygon> <extrude>1</extrude> <altitudeMode>relativeToGround</altitudeMode> <outerBoundaryIs> <LinearRing> <coordinates> -122.0848938459612,37.42257124044786,17 -122.0849580979198,37.42211922626856,17 -122.0847469573047,37.42207183952619,17 -122.0845725380962,37.42209006729676,17 -122.0845954886723,37.42215932700895,17 -122.0838521118269,37.42227278564371,17 -122.083792243335,37.42203539112084,17 -122.0835076656616,37.42209006957106,17 -122.0834709464152,37.42200987395161,17 -122.0831221085748,37.4221046494946,17 -122.0829247374572,37.42226503990386,17 -122.0829339169385,37.42231242843094,17 -122.0833837359737,37.42225046087618,17 -122.0833607854248,37.42234159228745,17 -122.0834204551642,37.42237075460644,17 -122.083659133885,37.42251292011001,17 -122.0839758438952,37.42265873093781,17 -122.0842374743331,37.42265143972521,17 -122.0845036949503,37.4226514386435,17 -122.0848020460801,37.42261133916315,17 -122.0847882750515,37.42256395055121,17 -122.0848938459612,37.42257124044786,17 </coordinates> </LinearRing> </outerBoundaryIs> </Polygon> </Placemark> <Placemark> <name>Building 41</name> <styleUrl>#transBluePoly</styleUrl> <Polygon> <extrude>1</extrude> <altitudeMode>relativeToGround</altitudeMode> <outerBoundaryIs> <LinearRing> <coordinates> -122.0857412771483,37.42227033155257,17 -122.0858169768481,37.42231408832346,17 -122.085852582875,37.42230337469744,17 -122.0858799945639,37.42225686138789,17 -122.0858860101409,37.4222311076138,17 -122.0858069157288,37.42220250173855,17 -122.0858379542653,37.42214027058678,17 -122.0856732640519,37.42208690214408,17 -122.0856022926407,37.42214885429042,17 -122.0855902778436,37.422128290487,17 -122.0855841672237,37.42208171967246,17 -122.0854852065741,37.42210455874995,17 -122.0855067264352,37.42214267949824,17 -122.0854430712915,37.42212783846172,17 -122.0850990714904,37.42251282407603,17 -122.0856769818632,37.42281815323651,17 -122.0860162273783,37.42244918858723,17 -122.0857260327004,37.42229239604253,17 -122.0857412771483,37.42227033155257,17 </coordinates> </LinearRing> </outerBoundaryIs> </Polygon> </Placemark> <Placemark> <name>Building 42</name> <styleUrl>#transGreenPoly</styleUrl> <Polygon> <extrude>1</extrude> <altitudeMode>relativeToGround</altitudeMode> <outerBoundaryIs> <LinearRing> <coordinates> -122.0857862287242,37.42136208886969,25 -122.0857312990603,37.42136935989481,25 -122.0857312992918,37.42140934910903,25 -122.0856077073679,37.42138390166565,25 -122.0855802426516,37.42137299550869,25 -122.0852186221971,37.42137299504316,25 -122.0852277765639,37.42161656508265,25 -122.0852598189347,37.42160565894403,25 -122.0852598185499,37.42168200156,25 -122.0852369311478,37.42170017860346,25 -122.0852643957828,37.42176197982575,25 -122.0853239032746,37.42176198013907,25 -122.0853559454324,37.421852864452,25 -122.0854108752463,37.42188921823734,25 -122.0854795379357,37.42189285337048,25 -122.0855436229819,37.42188921797546,25 -122.0856260178042,37.42186013499926,25 -122.085937287963,37.42186013453605,25 -122.0859428718666,37.42160898590042,25 -122.0859655469861,37.42157992759144,25 -122.0858640462341,37.42147115002957,25 -122.0858548911215,37.42140571326184,25 -122.0858091162768,37.4214057134039,25 -122.0857862287242,37.42136208886969,25 </coordinates> </LinearRing> </outerBoundaryIs> </Polygon> </Placemark> <Placemark> <name>Building 43</name> <styleUrl>#transYellowPoly</styleUrl> <Polygon> <extrude>1</extrude> <altitudeMode>relativeToGround</altitudeMode> <outerBoundaryIs> <LinearRing> <coordinates> -122.0844371128284,37.42177253003091,19 -122.0845118855746,37.42191111542896,19 -122.0850470999805,37.42178755121535,19 -122.0850719913391,37.42143663023161,19 -122.084916406232,37.42137237822116,19 -122.0842193868167,37.42137237801626,19 -122.08421938659,37.42147617161496,19 -122.0838086419991,37.4214613409357,19 -122.0837899728564,37.42131306410796,19 -122.0832796534698,37.42129328840593,19 -122.0832609819207,37.42139213944298,19 -122.0829373621737,37.42137236399876,19 -122.0829062425667,37.42151569778871,19 -122.0828502269665,37.42176282576465,19 -122.0829435788635,37.42176776969635,19 -122.083217411188,37.42179248552686,19 -122.0835970430103,37.4217480074456,19 -122.0839455556771,37.42169364237603,19 -122.0840077894637,37.42176283815853,19 -122.084113587521,37.42174801104392,19 -122.0840762473784,37.42171341292375,19 -122.0841447047739,37.42167881534569,19 -122.084144704223,37.42181720660197,19 -122.0842503333074,37.4218170700446,19 -122.0844371128284,37.42177253003091,19 </coordinates> </LinearRing> </outerBoundaryIs> </Polygon> </Placemark> </Folder> <Folder> <name>LineString</name> <open>0</open> <Placemark> <LineString> <tessellate>1</tessellate> <coordinates> -112.0814237830345,36.10677870477137,0 -112.0870267752693,36.0905099328766,0 </coordinates> </LineString> </Placemark> </Folder> <Folder> <name>GroundOverlay</name> <open>0</open> <GroundOverlay> <name>Large-scale overlay on terrain</name> <description>Overlay shows Mount Etna erupting on July 13th, 2001.</description> <Icon> <href>http://code.google.com/apis/kml/documentation/etna.jpg</href> </Icon> <LatLonBox> <north>37.91904192681665</north> <south>37.46543388598137</south> <east>15.35832653742206</east> <west>14.60128369746704</west> </LatLonBox> </GroundOverlay> </Folder> <Folder> <name>ScreenOverlays</name> <open>0</open> <ScreenOverlay> <name>screenoverlay_dynamic_top</name> <visibility>0</visibility> <Icon> <href>http://code.google.com/apis/kml/documentation/dynamic_screenoverlay.jpg</href> </Icon> <overlayXY x="0" y="1" xunits="fraction" yunits="fraction"/> <screenXY x="0" y="1" xunits="fraction" yunits="fraction"/> <rotationXY x="0" y="0" xunits="fraction" yunits="fraction"/> <size x="1" y="0.2" xunits="fraction" yunits="fraction"/> </ScreenOverlay> <ScreenOverlay> <name>screenoverlay_dynamic_right</name> <visibility>0</visibility> <Icon> <href>http://code.google.com/apis/kml/documentation/dynamic_right.jpg</href> </Icon> <overlayXY x="1" y="1" xunits="fraction" yunits="fraction"/> <screenXY x="1" y="1" xunits="fraction" yunits="fraction"/> <rotationXY x="0" y="0" xunits="fraction" yunits="fraction"/> <size x="0" y="1" xunits="fraction" yunits="fraction"/> </ScreenOverlay> <ScreenOverlay> <name>Simple crosshairs</name> <visibility>0</visibility> <description>This screen overlay uses fractional positioning to put the image in the exact center of the screen</description> <Icon> <href>http://code.google.com/apis/kml/documentation/crosshairs.png</href> </Icon> <overlayXY x="0.5" y="0.5" xunits="fraction" yunits="fraction"/> <screenXY x="0.5" y="0.5" xunits="fraction" yunits="fraction"/> <rotationXY x="0.5" y="0.5" xunits="fraction" yunits="fraction"/> <size x="0" y="0" xunits="pixels" yunits="pixels"/> </ScreenOverlay> <ScreenOverlay> <name>screenoverlay_absolute_topright</name> <visibility>0</visibility> <Icon> <href>http://code.google.com/apis/kml/documentation/top_right.jpg</href> </Icon> <overlayXY x="1" y="1" xunits="fraction" yunits="fraction"/> <screenXY x="1" y="1" xunits="fraction" yunits="fraction"/> <rotationXY x="0" y="0" xunits="fraction" yunits="fraction"/> <size x="0" y="0" xunits="fraction" yunits="fraction"/> </ScreenOverlay> <ScreenOverlay> <name>screenoverlay_absolute_topleft</name> <visibility>0</visibility> <Icon> <href>http://code.google.com/apis/kml/documentation/top_left.jpg</href> </Icon> <overlayXY x="0" y="1" xunits="fraction" yunits="fraction"/> <screenXY x="0" y="1" xunits="fraction" yunits="fraction"/> <rotationXY x="0" y="0" xunits="fraction" yunits="fraction"/> <size x="0" y="0" xunits="fraction" yunits="fraction"/> </ScreenOverlay> <ScreenOverlay> <name>screenoverlay_absolute_bottomright</name> <visibility>0</visibility> <Icon> <href>http://code.google.com/apis/kml/documentation/bottom_right.jpg</href> </Icon> <overlayXY x="1" y="-1" xunits="fraction" yunits="fraction"/> <screenXY x="1" y="0" xunits="fraction" yunits="fraction"/> <rotationXY x="0" y="0" xunits="fraction" yunits="fraction"/> <size x="0" y="0" xunits="fraction" yunits="fraction"/> </ScreenOverlay> <ScreenOverlay> <name>screenoverlay_absolute_bottomleft</name> <visibility>0</visibility> <Icon> <href>http://code.google.com/apis/kml/documentation/bottom_left.jpg</href> </Icon> <overlayXY x="0" y="-1" xunits="fraction" yunits="fraction"/> <screenXY x="0" y="0" xunits="fraction" yunits="fraction"/> <rotationXY x="0" y="0" xunits="fraction" yunits="fraction"/> <size x="0" y="0" xunits="fraction" yunits="fraction"/> </ScreenOverlay> </Folder> </Document> </kml> and my code is : function initialize() { if (GBrowserIsCompatible()) { var map = new GMap2(document.getElementById("map_canvas")); var center=new GLatLng(39.9493, 116.3975); map.setCenter(center, 13); var geoXml = new GGeoXml("SamplesInMaps.kml"); <!--Place KML on Map --> map.addOverlay(geoXml); } } but ,i don't successful ,, do you know how to do this.. thanks

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  • Is MVVM pointless?

    - by joebeazelman
    Is orthodox MVVM implementation pointless? I am creating a new application and I considered Windows Forms and WPF. I chose WPF because it's future-proof and offer lots of flexibility. There is less code and easier to make significant changes to your UI using XAML. Since the choice for WPF is obvious, I figured that I may as well go all the way by using MVVM as my application architecture since it offers blendability, separation concerns and unit testability. Theoretically, it seems beautiful like the holy grail of UI programming. This brief adventure; however, has turned into a real headache. As expected in practice, I’m finding that I’ve traded one problem for another. I tend to be an obsessive programmer in that I want to do things the right way so that I can get the right results and possibly become a better programmer. The MVVM pattern just flunked my test on productivity and has just turned into a big yucky hack! The clear case in point is adding support for a Modal dialog box. The correct way is to put up a dialog box and tie it to a view model. Getting this to work is difficult. In order to benefit from the MVVM pattern, you have to distribute code in several places throughout the layers of your application. You also have to use esoteric programming constructs like templates and lamba expressions. Stuff that makes you stare at the screen scratching your head. This makes maintenance and debugging a nightmare waiting to happen as I recently discovered. I had an about box working fine until I got an exception the second time I invoked it, saying that it couldn’t show the dialog box again once it is closed. I had to add an event handler for the close functionality to the dialog window, another one in the IDialogView implementation of it and finally another in the IDialogViewModel. I thought MVVM would save us from such extravagant hackery! There are several folks out there with competing solutions to this problem and they are all hacks and don’t provide a clean, easily reusable, elegant solution. Most of the MVVM toolkits gloss over dialogs and when they do address them, they are just alert boxes that don’t require custom interfaces or view models. I’m planning on giving up on the MVVM view pattern, at least its orthodox implementation of it. What do you think? Has it been worth the trouble for you if you had any? Am I just a incompetent programmer or does MVVM not what it's hyped up to be?

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  • How much abstraction is too much?

    - by Daniel Bingham
    In an Object Oriented Program: How much abstraction is too much? How much is just right? I have always been a nuts and bolts kind of guy. I understood the concept behind high levels of encapsulation and abstraction, but always felt instinctively that adding too much would just confuse the program. I always tried to shoot for an amount of abstraction that left no empty classes or layers. And where in doubt, instead of adding a new layer to the hierarchy, I would try and fit something into the existing layers. However, recently I've been encountering more highly abstracted systems. Systems where everything that could require a representation later in the hierarchy gets one up front. This leads to a lot of empty layers, which at first seems like bad design. However, on second thought I've come to realize that leaving those empty layers gives you more places to hook into in the future with out much refactoring. It leaves you greater ability to add new functionality on top of the old with out doing nearly as much work to adjust the old. The two risks of this seem to be that you could get the layers you need wrong. In this case one would wind up still needing to do substantial refactoring to extend the code and would still have a ton of never used layers. But depending on how much time you spend coming up with the initial abstractions, the chance of screwing it up, and the time that could be saved later if you get it right - it may still be worth it to try. The other risk I can think of is the risk of over doing it and never needing all the extra layers. But is that really so bad? Are extra class layers really so expensive that it is much of a loss if they are never used? The biggest expense and loss here would be time that is lost up front coming up with the layers. But much of that time still might be saved later when one can work with the abstracted code rather than more low level code. So when is it too much? At what point do the empty layers and extra "might need" abstractions become overkill? How little is too little? Where's the sweet spot? Are there any dependable rules of thumb you've found in the course of your career that help you judge the amount of abstraction needed?

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  • Any one like me who still believes in AspNet Web forms? Or has evryone switched to MVC

    - by The_AlienCoder
    After years mastering Aspnet webforms I recently decided to try out ASpnet MVC. Naturally my first action was to google 'Aspnet webforms vs Aspnet MVC'. I hoped to get an honest comparison of the two development techniques and guidelines on when to use which one. ..But I was completely turned off by the MVC proponents. In almost every post on the net comparing the two 'platforms' the MVC camp is simply bashing webform developers like me. They go on and on about how wrong and stupid using webforms is. As if what we have been doing the past decade has been pointless - all those websites built(& still running), all those clever controls, the mighty gridview..ALL POINTLESS ! Karl Seguin especially with his stupid webforms rant really turned me off. If his intention was to convert people like me he did the oposite and made me defensive. If anything I am now convinced that the webforms approach is better. consider the following All the critical shortcomings of aspnet webforms have now been Addressed in visual studio 2010 with Aspnet 4.0.- Cleaner html, cleaner control IDs, friendly urls, leaner viewstate etc Why would any one want to implement the mighty gridview and other wonderful controls from scratch ? In MVC you have to do this yourself because ABSTRACTION IS PLAIN STUPID- Instead of writing loops why not just code using 1s and 0s then? A stateless web is a WEAKNESS so why would anyone want to get rid of viewstate? Everyone would like a better implementation but getting rid of it is a step backwards not forward. Unit testing is great but not a critical requirement for most web projects. I thought inline codes were dead with asp. But now they are back and fashionable - Thanks to MVC. I dont know about you people but codebehind was REVOLUTIONARY. Ive had the Ajax Update panel do so many wonderful things without writing a line of code so why demonise it? Ive succesfully implemented a chat client, IM client and Status bar using nothing but the update panel and script manager.Ofcourse you cant use it for everything but most of the time its appropriate. And finally the last word from JQUERY - 'Write less do more !' - That's what webforms is all about ! So Am I the only who still believes in webforms(and it getting better as Aspnet 4.0 has shown) or will it be dead and gone a few years from now like asp? I mean if inline coding is 'the future' why not just switch to PHP !

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  • Optimized .htaccess???

    - by StackOverflowNewbie
    I'd appreciate some feedback on the compression and caching configuration below. Trying to come up with a general purpose, optimized compression and caching configuration. If possible: Note your PageSpeed and YSlow grades Add configuration to your .htaccess Clear your cache Note your PageSpeed and YSlow grades to see if there are any improvements (or degradations) NOTE: Make sure you have appropriate modules loaded. Any feedback is much appreciated. Thanks. # JavaScript MIME type issues: # 1. Apache uses "application/javascript": http://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x/conf/mime.types # 2. IIS uses "application/x-javascript": http://technet.microsoft.com/en-us/library/bb742440.aspx # 3. SVG specification says it is text/ecmascript: http://www.w3.org/TR/2001/REC-SVG-20010904/script.html#ScriptElement # 4. HTML specification says it is text/javascript: http://www.w3.org/TR/1999/REC-html401-19991224/interact/scripts.html#h-18.2.2.2 # 5. "text/ecmascript" and "text/javascript" are considered obsolete: http://www.rfc-editor.org/rfc/rfc4329.txt #------------------------------------------------------------------------------- # Compression #------------------------------------------------------------------------------- <IfModule mod_deflate.c> AddOutputFilterByType DEFLATE application/xhtml+xml AddOutputFilterByType DEFLATE application/xml AddOutputFilterByType DEFLATE application/atom+xml AddOutputFilterByType DEFLATE text/css AddOutputFilterByType DEFLATE text/html AddOutputFilterByType DEFLATE text/plain AddOutputFilterByType DEFLATE text/xml # The following MIME types are in the process of registration AddOutputFilterByType DEFLATE application/xslt+xml AddOutputFilterByType DEFLATE image/svg+xml # The following MIME types are NOT registered AddOutputFilterByType DEFLATE application/mathml+xml AddOutputFilterByType DEFLATE application/rss+xml # Deal with JavaScript MIME type issues AddOutputFilterByType DEFLATE application/javascript AddOutputFilterByType DEFLATE application/x-javascript AddOutputFilterByType DEFLATE text/ecmascript AddOutputFilterByType DEFLATE text/javascript </IfModule> #------------------------------------------------------------------------------- # Expires header #------------------------------------------------------------------------------- <IfModule mod_expires.c> # 1. Set Expires to a minimum of 1 month, and preferably up to 1 year, in the future # (but not more than 1 year as that would violate the RFC guidelines) # 2. Use "Expires" over "Cache-Control: max-age" because it is more widely accepted ExpiresActive on ExpiresByType application/pdf "access plus 1 year" ExpiresByType application/x-shockwave-flash "access plus 1 year" ExpiresByType image/bmp "access plus 1 year" ExpiresByType image/gif "access plus 1 year" ExpiresByType image/jpeg "access plus 1 year" ExpiresByType image/png "access plus 1 year" ExpiresByType image/svg+xml "access plus 1 year" ExpiresByType image/tiff "access plus 1 year" ExpiresByType image/x-icon "access plus 1 year" ExpiresByType text/css "access plus 1 year" ExpiresByType video/x-flv "access plus 1 year" # Deal with JavaScript MIME type issues ExpiresByType application/javascript "access plus 1 year" ExpiresByType application/x-javascript "access plus 1 year" ExpiresByType text/ecmascript "access plus 1 year" ExpiresByType text/javascript "access plus 1 year" # Probably better to explicitly declare MIME types than to have a blanket rule for expiration # Uncomment below if you disagree #ExpiresDefault "access plus 1 year" </IfModule> #------------------------------------------------------------------------------- # Caching #------------------------------------------------------------------------------- <IfModule mod_headers.c> <FilesMatch "\.(bmp|css|flv|gif|ico|jpg|jpeg|js|pdf|png|svg|swf|tif|tiff)$"> Header add Cache-Control "public" Header unset ETag Header unset Last-Modified FileETag none </FilesMatch> </IfModule>

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  • Strategy pattern and "action" classes explosion

    - by devoured elysium
    Is it bad policy to have lots of "work" classes(such as Strategy classes), that only do one thing? Let's assume I want to make a Monster class. Instead of just defining everything I want about the monster in one class, I will try to identify what are its main features, so I can define them in interfaces. That will allow to: Seal the class if I want. Later, other users can just create a new class and still have polymorphism by means of the interfaces I've defined. I don't have to worry how people (or myself) might want to change/add features to the base class in the future. All classes inherit from Object and they implement inheritance through interfaces, not from mother classes. Reuse the strategies I'm using with this monster for other members of my game world. Con: This model is rigid. Sometimes we would like to define something that is not easily achieved by just trying to put together this "building blocks". public class AlienMonster : IWalk, IRun, ISwim, IGrowl { IWalkStrategy _walkStrategy; IRunStrategy _runStrategy; ISwimStrategy _swimStrategy; IGrowlStrategy _growlStrategy; public Monster() { _walkStrategy = new FourFootWalkStrategy(); ...etc } public void Walk() { _walkStrategy.Walk(); } ...etc } My idea would be next to make a series of different Strategies that could be used by different monsters. On the other side, some of them could also be used for totally different purposes (i.e., I could have a tank that also "swims"). The only problem I see with this approach is that it could lead to a explosion of pure "method" classes, i.e., Strategy classes that have as only purpose make this or that other action. In the other hand, this kind of "modularity" would allow for high reuse of stratagies, sometimes even in totally different contexts. What is your opinion on this matter? Is this a valid reasoning? Is this over-engineering? Also, assuming we'd make the proper adjustments to the example I gave above, would it be better to define IWalk as: interface IWalk { void Walk(); } or interface IWalk { IWalkStrategy WalkStrategy { get; set; } //or something that ressembles this } being that doing this I wouldn't need to define the methods on Monster itself, I'd just have public getters for IWalkStrategy (this seems to go against the idea that you should encapsulate everything as much as you can!) Why? Thanks

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