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  • Why JEE is widely used in complicated projects?

    - by cane
    Hi. Yesterday me and my friend we've had nice conversation about IT and he asked me WHY JEE is so widely used when it comes to build complicated IT systems? From my point of view advantages are easily visible, but he is IT manager with a lot of Micro$oft experience (and little Java exp.), so I would like to hear your voice. And I'll give him a link of course. I don't want new .NET - JAVA war - just - why JEE :) Thanks, orsonek

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  • Lucene based database search engine

    - by Abhay
    Hi All, I am planing to add search feature in my web application. Now the items that will be searched are strored in a Relational database. In order to achieve a full text search engine I have following doubts : For database based search engine should I use just lucene or some other utility based on Luncene like Solr, luSql, Compass etc. In case of Solr, can it be embeded in to the web applcation rather than deploying it as a seaparate WAR. Thanks for your time. regards

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  • How to change the home directory of hudson?

    - by dfdfd
    I deployed hudson.war in the sun application server 9.1. I like to check how can i change the home directory of hudson to point to another directory becasue if using a .hudson directory is not ok as i have very little diskspace left in main disk drive.

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  • Why is Visual Basic used?

    - by Arrieta
    I don't mean to start a holy war here, but I cannot fathom why would anybody use Visual Basic for a new project. Can you explain me why is it used? What new applications (which a lay person may be familiar with) have been developed in it? Why is it chosen over other languages? Thanks.

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  • deploying project to tomcat ROOT

    - by stsd
    I have deployed my project to tomcat root, and it works fine without any problem. To acheive this I created a ROOT file TOMCAT_HOME/conf/Catalina/localhost/ROOT.xml with content below: <Context docBase="/home/user/project.war" path="" reloadable="true" /> So right now I can see my project under localhost:8080/ without any problem.. but I don't know where my project has been extracted, there is even no ROOT directory under TOMCAT_HOME/webapps, any idea?

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  • How does file creation work in Java

    - by Ankur
    I am trying to create a file using File newFile = new File("myFile"); However no file called "myFile" is created. This is within a Web application Project i.e. proper form to be pakaged as a WAR but I am calling it as part of a main method (just to see how this works). How can I make it so that a new file is created at a location relative to the current one i.e not have to put in an absolute path.

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  • How to deploy the same webapp with different logging? (Tomcat, Solr)

    - by Karussell
    We are using multiple solr instances on tomcat but want that they log into different log files. How could we do this? We are using the follwing xml file under tomcat/conf/Catalina/localhost to make it working: <Context docBase="/pathtosolr/dist/apache-solr-1.4.0.war" debug="0" crossContext="true" > <Environment name="solr/home" type="java.lang.String" value="/pathtosolr/solr" override="true" /> </Context>

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  • Installer for web application

    - by Xinus
    We have developed a web application which is to be deployed by nontechnical person. Therefor I want to create an installer for it. Installer has functions of installing JVM, Apache Tomcat, and the web application war file depending on whether they are installed or not. Is there any installation suit which I can use to achieve this?

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  • Modifying groovy code at runtime in grails application

    - by parasjain01
    When I run my grails application using embedded jetty server(tomcat for grails 1.2), I can make changes to my controllers, services and other java files on-the-fly at runtime without restarting the application. How can I achieve the same functionality on my application deployed on Tomcat(or any server) for that matter. I have observed the exploded war folder under webapps has gsp files but not the groovy files.

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  • eclipse + maven + tomcat debugging

    - by Tom
    I'm developping a web application in Eclipse and I'm using maven, spring and tomcat. Now the problem I have is that debug as = debug on server doesn't work. I just get exceptions. (and yes I've created the server) If I use the mvn command to compile it, put the war in my tomcat webapps dir and start my tomcat the application works fine. But for the functionallity I'm now working on debugging would be usefull.

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  • Deploy a project in tomcat 6

    - by javatraniee
    I'm trying to deploy a war file onto my server which is tomcat 6 and it run on a linux machine. My project run if i give the url with the port number eg: http://192.168.1.8:8080/uctc but it fails to run if i run it without the port number eg ://192.168.1.8/uctc ...can anyone tell me how to run my website without the port number??

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  • How to restrict user from modifying data in mysql data base?

    - by Paul
    We need to deploy application(developed by Java) WAR file in client place which make use of MySql 5.0. But we would like to restrict the user from modifying any data in the database. Is there any way to protect data. The client can make use of the application but they should not be able to change any value in database. How to do that?

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  • Deploying solr in Jboss

    - by Azhar
    I want to deploy the solr.war to jboss server. Please provide me the steps for this. Also after deploying what url i should use to access the solr/data/index directory? Thanks!!

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  • Is there any legal problems for design an operating system?

    - by x86
    Hi everybody.. My wondering is a Programming/Business question, so here what I am thinking about, One of my big goals is to design a Computer Operating System, however if it will be just for fun, knowledge or even to be the next Windows or Linux, so if I had Programmed one, with GUI (windows,lists,buttons,etc..) and for example I will make it for Commercial use, Will Microsoft or Apple comes and drop me in legal problems just like what happened in GUI war between the two of them(Apple and Microsoft)? Thanks.

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  • updating a properties file in a web application

    - by AmiraGL
    i have a properties file (under rsources folder) in which i'm stocking a variable (key=value), i need to update it when a user insert a new value or update the older one , so can i do it ? i have doubts because it's a web application so it' simply a war deployed in the server so how it is possible to access the .properties file and change it directly from the code . if it's not possible is there another solution ? Any Help will be apprecited Many thanks

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  • Configuring Jenkins for running with BitBucket

    - by Claus
    I'm trying to setup Jenkins on my mac mini in order to pull my iOS project source code from BitBucket and build it automatically. I've already gone through the major well know problems generating the ssh keys,uploading them in BitBucket,performing an ssh connection by console for adding the host to the well know list (you can find all my adventure here and here). Now,there are 3 user in my system: A,B and Shared. When I installed Jenkins it automatically placed itself in Shared, but I generated the ssh keys with the user A. So just to be clear In the A home directory there is an .ssh directory with public and private keys. When I try to run by Jenkins job I get this error message: Started by user anonymous Building in workspace /Users/Shared/Jenkins/Home/jobs/myprojectAdHocBuild/workspace Checkout:workspace / /Users/Shared/Jenkins/Home/jobs/myprojectAdHocBuild/workspace - hudson.remoting.LocalChannel@625cb0bb Using strategy: Default Cloning the remote Git repository Cloning repository [email protected]:myuser/myproject.git git --version git version 1.8.0 ERROR: Error cloning remote repo 'origin' : Could not clone [email protected]:myuser/myproject.git hudson.plugins.git.GitException: Could not clone [email protected]:myuser/myproject.git at hudson.plugins.git.GitAPI.clone(GitAPI.java:271) at hudson.plugins.git.GitSCM$2.invoke(GitSCM.java:1036) at hudson.plugins.git.GitSCM$2.invoke(GitSCM.java:978) at hudson.FilePath.act(FilePath.java:851) at hudson.FilePath.act(FilePath.java:824) at hudson.plugins.git.GitSCM.determineRevisionToBuild(GitSCM.java:978) at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1134) at hudson.model.AbstractProject.checkout(AbstractProject.java:1325) at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:676) at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:581) at hudson.model.Run.execute(Run.java:1516) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:236) Caused by: hudson.plugins.git.GitException: Command "/usr/local/git/bin/git clone --progress -o origin [email protected]:myuser/myproject.git /Users/Shared/Jenkins/Home/jobs/myprojectAdHocBuild/workspace" returned status code 128: stdout: Cloning into '/Users/Shared/Jenkins/Home/jobs/myprojectAdHocBuild/workspace'... stderr: Host key verification failed. fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. at hudson.plugins.git.GitAPI.launchCommandIn(GitAPI.java:885) at hudson.plugins.git.GitAPI.access$000(GitAPI.java:40) at hudson.plugins.git.GitAPI$1.invoke(GitAPI.java:267) at hudson.plugins.git.GitAPI$1.invoke(GitAPI.java:246) at hudson.FilePath.act(FilePath.java:851) at hudson.FilePath.act(FilePath.java:824) at hudson.plugins.git.GitAPI.clone(GitAPI.java:246) ... 14 more Trying next repository ERROR: Could not clone repository FATAL: Could not clone hudson.plugins.git.GitException: Could not clone at hudson.plugins.git.GitSCM$2.invoke(GitSCM.java:1048) at hudson.plugins.git.GitSCM$2.invoke(GitSCM.java:978) at hudson.FilePath.act(FilePath.java:851) at hudson.FilePath.act(FilePath.java:824) at hudson.plugins.git.GitSCM.determineRevisionToBuild(GitSCM.java:978) at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1134) at hudson.model.AbstractProject.checkout(AbstractProject.java:1325) at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:676) at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:581) at hudson.model.Run.execute(Run.java:1516) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:236) As you can see it fails when Hudson try to run the GIT command. The odd things is that if I try to run /usr/local/git/bin/git clone --progress -o origin [email protected]:myuser/myproject.git /Users/Shared/Jenkins/Home/jobs/myprojectAdHocBuild/workspace In my console, it works fine (after fixing a small problem relative the folder write permission with chmod) I found a post reporting a similar error which names a number of possible options but I'm not sure how to perform correctly these operations on my console. It looks like Jenkins is trying to run a command with a user which doesn't have permission to retrieve the appropriate keys from my .ssh directory.Not really sure.Maybe this output can help: MacMini:~ myuser$ ps axu | grep "/jenkins" myuser 11660 0.0 4.6 2918124 97096 ?? S 6:59pm 1:05.63 /usr/bin/java -jar /Users/myuser/Library/Caches/org.jenkins-ci.jenkins/jenkins.war jenkins 9896 0.0 9.0 2939824 188552 ?? Ss 4:06pm 17:55.91 /usr/bin/java -jar /Applications/Jenkins/jenkins.war myuser 11930 0.0 0.0 2432768 588 s000 S+ 10:28am 0:00.00 grep /jenkins MacMini:~ myuser$ ps axu | grep tomcat myuser 11932 0.0 0.0 2432768 588 s000 S+ 10:28am 0:00.00 grep tomcat MacMini:~ myuser$ I really hope to fix this problem, because I would like to write a very detailed tutorial with all the information I found disseminated around the web.

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  • Hudson on debian lenny

    - by Laurent
    Hello, I installed Hudson deamon on one server (running on debian lenny testing) some time ago. All was working until I perform an upgrade. At this time Hudson isn't accessible at port 8080 (which is the default port used). I have looked for iptables problems, however port 8080 is open in INPUT and OUTPUT. Configuration file in /etc/default/hudson seems okay, I haven't touch it. And if I do a ps aux | grep hudson, hudson deamon is running. Update 1: What is really strange for me is that in /var/log/hudson/hudson.log I get no error : [Winstone 2010/02/10 17:10:04] - Control thread shutdown successfully [Winstone 2010/02/10 17:10:04] - Winstone shutdown successfully Running from: /usr/share/hudson/hudson.war [Winstone 2010/02/10 17:10:43] - Beginning extraction from war file hudson home directory: /var/lib/hudson [Winstone 2010/02/10 17:10:44] - HTTP Listener started: port=8080 [Winstone 2010/02/10 17:10:44] - AJP13 Listener started: port=8009 [Winstone 2010/02/10 17:10:44] - Winstone Servlet Engine v0.9.10 running: controlPort=disabled 10 févr. 2010 17:10:44 hudson.model.Hudson$4 onAttained INFO: Started initialization 10 févr. 2010 17:10:44 hudson.model.Hudson$4 onAttained INFO: Listed all plugins 10 févr. 2010 17:10:44 hudson.model.Hudson$4 onAttained INFO: Prepared all plugins 10 févr. 2010 17:10:44 hudson.model.Hudson$4 onAttained INFO: Started all plugins 10 févr. 2010 17:10:46 hudson.model.Hudson$4 onAttained INFO: Loaded all jobs 10 févr. 2010 17:10:46 hudson.model.Hudson$4 onAttained INFO: Completed initialization 10 févr. 2010 17:10:47 org.springframework.context.support.AbstractApplicationContext prepareRefresh INFO: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@caa559d: display name [Root WebApplicationContext]; startup date [Wed Feb 10 17:10:47 CET 2010]; root of context hierarchy 10 févr. 2010 17:10:47 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory INFO: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@caa559d]: org.springframework.beans.factory.support.DefaultListableBeanFactory@40d2f5f1 10 févr. 2010 17:10:47 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@40d2f5f1: defining beans [daoAuthenticationProvider,authenticationManager,userDetailsService]; root of factory hierarchy 10 févr. 2010 17:10:47 org.springframework.context.support.AbstractApplicationContext prepareRefresh INFO: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@4d88a387: display name [Root WebApplicationContext]; startup date [Wed Feb 10 17:10:47 CET 2010]; root of context hierarchy 10 févr. 2010 17:10:47 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory INFO: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@4d88a387]: org.springframework.beans.factory.support.DefaultListableBeanFactory@6153e0c0 10 févr. 2010 17:10:47 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@6153e0c0: defining beans [filter,legacy]; root of factory hierarchy 10 févr. 2010 17:10:47 hudson.TcpSlaveAgentListener <init> INFO: JNLP slave agent listener started on TCP port 59750 Update 2: What I get with lsof -i -n -P | grep hudson: java 28985 hudson 97u IPv6 2002707 0t0 TCP *:8080 (LISTEN) java 28985 hudson 99u IPv6 2002708 0t0 TCP *:8009 (LISTEN) java 28985 hudson 147u IPv6 2002711 0t0 TCP *:59750 (LISTEN) java 28985 hudson 150u IPv6 2002712 0t0 UDP *:33848 I don't know what I can verify. Does someone has an idea in order to help me to resolve this problem ?

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  • Down Tools Week Cometh: Kissing Goodbye to CVs/Resumes and Cover Letters

    - by Bart Read
    I haven't blogged about what I'm doing in my (not so new) temporary role as Red Gate's technical recruiter, mostly because it's been routine, business as usual stuff, and because I've been trying to understand the role by doing it. I think now though the time has come to get a little more radical, so I'm going to tell you why I want to largely eliminate CVs/resumes and cover letters from the application process for some of our technical roles, and why I think that might be a good thing for candidates (and for us). I have a terrible confession to make, or at least it's a terrible confession for a recruiter: I don't really like CV sifting, or reading cover letters, and, unless I've misread the mood around here, neither does anybody else. It's dull, it's time-consuming, and it's somewhat soul destroying because, when all is said and done, you're being paid to be incredibly judgemental about people based on relatively little information. I feel like I've dirtied myself by saying that - I mean, after all, it's a core part of my job - but it sucks, it really does. (And, of course, the truth is I'm still a software engineer at heart, and I'm always looking for ways to do things better.) On the flip side, I've never met anyone who likes writing their CV. It takes hours and hours of faffing around and massaging it into shape, and the whole process is beset by a gnawing anxiety, frustration, and insecurity. All you really want is a chance to demonstrate your skills - not just talk about them - and how do you do that in a CV or cover letter? Often the best candidates will include samples of their work (a portfolio, screenshots, links to websites, product downloads, etc.), but sometimes this isn't possible, or may not be appropriate, or you just don't think you're allowed because of what your school/university careers service has told you (more commonly an issue with grads, obviously). And what are we actually trying to find out about people with all of this? I think the common criteria are actually pretty basic: Smart Gets things done (thanks for these two Joel) Not an a55hole* (sorry, have to get around Simple Talk's swear filter - and thanks to Professor Robert I. Sutton for this one) *Of course, everyone has off days, and I don't honestly think we're too worried about somebody being a bit grumpy every now and again. We can do a bit better than this in the context of the roles I'm talking about: we can be more specific about what "gets things done" means, at least in part. For software engineers and interns, the non-exhaustive meaning of "gets things done" is: Excellent coder For test engineers, the non-exhaustive meaning of "gets things done" is: Good at finding problems in software Competent coder Team player, etc., to me, are covered by "not an a55hole". I don't expect people to be the life and soul of the party, or a wild extrovert - that's not what team player means, and it's not what "not an a55hole" means. Some of our best technical staff are quiet, introverted types, but they're still pleasant to work with. My problem is that I don't think the initial sift really helps us find out whether people are smart and get things done with any great efficacy. It's better than nothing, for sure, but it's not as good as it could be. It's also contentious, and potentially unfair/inequitable - if you want to get an idea of what I mean by this, check out the background information section at the bottom. Before I go any further, let's look at the Red Gate recruitment process for technical staff* as it stands now: (LOTS of) People apply for jobs. All these applications go through a brutal process of manual sifting, which eliminates between 75 and 90% of them, depending upon the role, and the time of year**. Depending upon the role, those who pass the sift will be sent an assessment or telescreened. For the purposes of this blog post I'm only interested in those that are sent some sort of programming assessment, or bug hunt. This means software engineers, test engineers, and software interns, which are the roles for which I receive the most applications. The telescreen tends to be reserved for project or product managers. Those that pass the assessment are invited in for first interview. This interview is mostly about assessing their technical skills***, although we're obviously on the look out for cultural fit red flags as well. If the first interview goes well we'll invite candidates back for a second interview. This is where team/cultural fit is really scoped out. We also use this interview to dive more deeply into certain areas of their skillset, and explore any concerns that may have come out of the first interview (these obviously won't have been serious or obvious enough to cause a rejection at that point, but are things we do need to look into before we'd consider making an offer). We might subsequently invite them in for lunch before we make them an offer. This tends to happen when we're recruiting somebody for a specific team and we'd like them to meet all the people they'll be working with directly. It's not an interview per se, but can prove pivotal if they don't gel with the team. Anyone who's made it this far will receive an offer from us. *We have a slightly quirky definition of "technical staff" as it relates to the technical recruiter role here. It includes software engineers, test engineers, software interns, user experience specialists, technical authors, project managers, product managers, and development managers, but does not include product support or information systems roles. **For example, the quality of graduate applicants overall noticeably drops as the academic year wears on, which is not to say that by now there aren't still stars in there, just that they're fewer and further between. ***Some organisations prefer to assess for team fit first, but I think assessing technical skills is a more effective initial filter - if they're the nicest person in the world, but can't cut a line of code they're not going to work out. Now, as I suggested in the title, Red Gate's Down Tools Week is upon us once again - next week in fact - and I had proposed as a project that we refactor and automate the first stage of marking our programming assessments. Marking assessments, and in fact organising the marking of them, is a somewhat time-consuming process, and we receive many assessment solutions that just don't make the cut, for whatever reason. Whilst I don't think it's possible to fully automate marking, I do think it ought to be possible to run a suite of automated tests over each candidate's solution to see whether or not it behaves correctly and, if it does, move on to a manual stage where we examine the code for structure, decomposition, style, readability, maintainability, etc. Obviously it's possible to use tools to generate potentially helpful metrics for some of these indices as well. This would obviously reduce the marking workload, and would provide candidates with quicker feedback about whether they've been successful - though I do wonder if waiting a tactful interval before sending a (nicely written) rejection might be wise. I duly scrawled out a picture of my ideal process, which looked like this: The problem is, as soon as I'd roughed it out, I realised that fundamentally it wasn't an ideal process at all, which explained the gnawing feeling of cognitive dissonance I'd been wrestling with all week, whilst I'd been trying to find time to do this. Here's what I mean. Automated assessment marking, and the associated infrastructure around that, makes it much easier for us to deal with large numbers of assessments. This means we can be much more permissive about who we send assessments out to or, in other words, we can give more candidates the opportunity to really demonstrate their skills to us. And this leads to a question: why not give everyone the opportunity to demonstrate their skills, to show that they're smart and can get things done? (Two or three of us even discussed this in the down tools week hustings earlier this week.) And isn't this a lot simpler than the alternative we'd been considering? (FYI, this was automated CV/cover letter sifting by some form of textual analysis to ideally eliminate the worst 50% or so of applications based on an analysis of the 20,000 or so historical applications we've received since 2007 - definitely not the basic keyword analysis beloved of recruitment agencies, since this would eliminate hardly anyone who was awful, but definitely would eliminate stellar Oxbridge candidates - #fail - or some nightmarishly complex Google-like system where we profile all our currently employees, only to realise that we're never going to get representative results because we don't have a statistically significant sample size in any given role - also #fail.) No, I think the new way is better. We let people self-select. We make them the masters (or mistresses) of their own destiny. We give applicants the power - we put their fate in their hands - by giving them the chance to demonstrate their skills, which is what they really want anyway, instead of requiring that they spend hours and hours creating a CV and cover letter that I'm going to evaluate for suitability, and make a value judgement about, in approximately 1 minute (give or take). It doesn't matter what university you attended, it doesn't matter if you had a bad year when you took your A-levels - here's your chance to shine, so take it and run with it. (As a side benefit, we cut the number of applications we have to sift by something like two thirds.) WIN! OK, yeah, sounds good, but will it actually work? That's an excellent question. My gut feeling is yes, and I'll justify why below (and hopefully have gone some way towards doing that above as well), but what I'm proposing here is really that we run an experiment for a period of time - probably a couple of months or so - and measure the outcomes we see: How many people apply? (Wouldn't be surprised or alarmed to see this cut by a factor of ten.) How many of them submit a good assessment? (More/less than at present?) How much overhead is there for us in dealing with these assessments compared to now? What are the success and failure rates at each interview stage compared to now? How many people are we hiring at the end of it compared to now? I think it'll work because I hypothesize that, amongst other things: It self-selects for people who really want to work at Red Gate which, at the moment, is something I have to try and assess based on their CV and cover letter - but if you're not that bothered about working here, why would you complete the assessment? Candidates who would submit a shoddy application probably won't feel motivated to do the assessment. Candidates who would demonstrate good attention to detail in their CV/cover letter will demonstrate good attention to detail in the assessment. In general, only the better candidates will complete and submit the assessment. Marking assessments is much less work so we'll be able to deal with any increase that we see (hopefully we will see). There are obviously other questions as well: Is plagiarism going to be a problem? Is there any way we can detect/discourage potential plagiarism? How do we assess candidates' education and experience? What about their ability to communicate in writing? Do we still want them to submit a CV afterwards if they pass assessment? Do we want to offer them the opportunity to tell us a bit about why they'd like the job when they submit their assessment? How does this affect our relationship with recruitment agencies we might use to hire for these roles? So, what's the objective for next week's Down Tools Week? Pretty simple really - we want to implement this process for the Graduate Software Engineer and Software Engineer positions that you can find on our website. I will be joined by a crack team of our best developers (Kevin Boyle, and new Red-Gater, Sam Blackburn), and recruiting hostess with the mostest Laura McQuillen, and hopefully a couple of others as well - if I can successfully twist more arms before Monday.* Hopefully by next Friday our experiment will be up and running, and we may have changed the way Red Gate recruits software engineers for good! Stay tuned and we'll let you know how it goes! *I'm going to play dirty by offering them beer and chocolate during meetings. Some background information: how agonising over the initial CV/cover letter sift helped lead us to bin it off entirely The other day I was agonising about the new university/good degree grade versus poor A-level results issue, and decided to canvas for other opinions to see if there was something I could do that was fairer than my current approach, which is almost always to reject. This generated quite an involved discussion on our Yammer site: I'm sure you can glean a pretty good impression of my own educational prejudices from that discussion as well, although I'm very open to changing my opinion - hopefully you've already figured that out from reading the rest of this post. Hopefully you can also trace a logical path from agonising about sifting to, "Uh, hang on, why on earth are we doing this anyway?!?" Technorati Tags: recruitment,hr,developers,testers,red gate,cv,resume,cover letter,assessment,sea change

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  • JavaOne Session Report: “50 Tips in 50 Minutes for GlassFish Fans”

    - by Janice J. Heiss
    At JavaOne 2012 on Monday, Oracle’s Engineer Chris Kasso, and Technology Evangelist Arun Gupta, presented a head-spinning session (CON4701) in which they offered 50 tips for GlassFish fans. Kasso and Gupta alternated back and forth with each presenting 10 tips at a time. An audience of about (appropriately) 50 attentive and appreciative developers was on hand in what has to be one of the most information-packed sessions ever at JavaOne!Aside: I experienced one of the quiet joys of JavaOne when, just before the session began, I spotted Java Champion and JavaOne Rock Star Adam Bien sitting nearby – Adam is someone I have been fortunate to know for many years.GlassFish is a freely available, commercially supported Java EE reference implementation. The session prioritized quantity of tips over depth of information and offered tips that are intended for both seasoned and new users, that are meant to increase the range of functional options available to GlassFish users. The focus was on lesser-known dimensions of GlassFish. Attendees were encouraged to pursue tips that contained new information for them. All 50 tips can be accessed here.Below are several examples of more elaborate tips and a final practical tip on how to get in touch with these folks. Tip #1: Using the login Command * To execute a remote command with asadmin you must provide the admin's user name and password.* The login command allows you to store the login credentials to be reused in subsequent commands.* Can be logged into multiple servers (distinguish by host and port). Example:     % asadmin --host ouch login     Enter admin user name [default: admin]>     Enter admin password>     Login information relevant to admin user name [admin]     for host [ouch] and admin port [4848] stored at     [/Users/ckasso/.asadminpass] successfully.     Make sure that this file remains protected.     Information stored in this file will be used by     asadmin commands to manage the associated domain.     Command login executed successfully.     % asadmin --host ouch list-clusters     c1 not running     Command list-clusters executed successfully.Tip #4: Using the AS_DEBUG Env Variable* Environment variable to control client side debug output* Exposes: command processing info URL used to access the command:                           http://localhost:4848/__asadmin/uptime Raw response from the server Example:   % export AS_DEBUG=true  % asadmin uptime  CLASSPATH= ./../glassfish/modules/admin-cli.jar  Commands: [uptime]  asadmin extension directory: /work/gf-3.1.2/glassfish3/glassfish/lib/asadm      ------- RAW RESPONSE  ---------   Signature-Version: 1.0   message: Up 7 mins 10 secs   milliseconds_value: 430194   keys: milliseconds   milliseconds_name: milliseconds   use-main-children-attribute: false   exit-code: SUCCESS  ------- RAW RESPONSE  ---------Tip #11: Using Password Aliases * Some resources require a password to access (e.g. DB, JMS, etc.).* The resource connector is defined in the domain.xml.Example:Suppose the DB resource you wish to access requires an entry like this in the domain.xml:     <property name="password" value="secretp@ssword"/>But company policies do not allow you to store the password in the clear.* Use password aliases to avoid storing the password in the domain.xml* Create a password alias:     % asadmin create-password-alias DB_pw_alias     Enter the alias password>     Enter the alias password again>     Command create-password-alias executed successfully.* The password is stored in domain's encrypted keystore.* Now update the password value in the domain.xml:     <property name="password" value="${ALIAS=DB_pw_alias}"/>Tip #21: How to Start GlassFish as a Service * Configuring a server to automatically start at boot can be tedious.* Each platform does it differently.* The create-service command makes this easy.   Windows: creates a Windows service Linux: /etc/init.d script Solaris: Service Management Facility (SMF) service * Must execute create-service with admin privileges.* Can be used for the DAS or instances* Try it first with the --dry-run option.* There is a (unsupported) _delete-serverExample:     # asadmin create-service domain1     The Service was created successfully. Here are the details:     Name of the service:application/GlassFish/domain1     Type of the service:Domain     Configuration location of the service:/work/gf-3.1.2.2/glassfish3/glassfish/domains     Manifest file location on the system:/var/svc/manifest/application/GlassFish/domain1_work_gf-3.1.2.2_glassfish3_glassfish_domains/Domain-service-smf.xml.     You have created the service but you need to start it yourself. Here are the most typical Solaris commands of interest:     * /usr/bin/svcs  -a | grep domain1  // status     * /usr/sbin/svcadm enable domain1 // start     * /usr/sbin/svcadm disable domain1 // stop     * /usr/sbin/svccfg delete domain1 // uninstallTip #34: Posting a Command via REST* Use wget/curl to execute commands on the DAS.Example:  Deploying an application   % curl -s -S \       -H 'Accept: application/json' -X POST \       -H 'X-Requested-By: anyvalue' \       -F id=@/path/to/application.war \       -F force=true http://localhost:4848/management/domain/applications/application* Use @ before a file name to tell curl to send the file's contents.* The force option tells GlassFish to force the deployment in case the application is already deployed.* Use wget/curl to execute commands on the DAS.Example:  Deploying an application   % curl -s -S \       -H 'Accept: application/json' -X POST \       -H 'X-Requested-By: anyvalue' \       -F id=@/path/to/application.war \       -F force=true http://localhost:4848/management/domain/applications/application* Use @ before a file name to tell curl to send the file's contents.* The force option tells GlassFish to force the deployment in case the application is already deployed.Tip #46: Upgrading to a Newer Version * Upgrade applications and configuration from an earlier version* Upgrade Tool: Side-by-side upgrade– GUI: asupgrade– CLI: asupgrade --c– What happens ?* Copies older source domain -> target domain directory* asadmin start-domain --upgrade* Update Tool and pkg: In-place upgrade– GUI: updatetool, install all Available Updates– CLI: pkg image-update– Upgrade the domain* asadmin start-domain --upgradeTip #50: How to reach us?* GlassFish Forum: http://www.java.net/forums/glassfish/glassfish* [email protected]* @glassfish* facebook.com/glassfish* youtube.com/GlassFishVideos* blogs.oracle.com/theaquariumArun Gupta acknowledged that their method of presentation was experimental and actively solicited feedback about the session. The best way to reach them is on the GlassFish user forum.In addition, check out Gupta’s new book Java EE 6 Pocket Guide.

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  • A CMS based on Yii ?

    - by santa_cametotown
    Hi - i've been with Yii for a few months and before I use main CodeIgniter, SilverStripe in my projects. Does anyone know a good Yii based CMS such as SilverStripe based on Sapphire or EE based on CodeIgniter ? My experience is working with Yii is much more easier and straightforward assuming you are good OOP coder but Yii is still young and there are not lot of samples that I can put together quickly for a real prodcution project. A couple of YII based CMS I spotted at do not look really promising or maybe at a very early stage such as dotPlant, Web3CMS.

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  • MP4 plays on Safari 4 (desktop) but not on Safari Mobile (iphone)

    - by deb
    I'm encoding the video with ffmpeg and displaying it using the HTML 5 video tag. It works fine on Firefox (i'm also providing a ogg version) and Safari 4. However, when I try to open it on the iphone I get a "Cannot Play Movie" error. Here is the ffmpeg command I'm using: ffmpeg -y -i movie.mov -acodec libfaac -ar 44100 -ab 96k -vcodec libx264 -vpre hq -level 41 -crf 20 -bufsize 20000k -maxrate 1500k -g 250 -s 320X200 -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -flags2 +dct8x8+bpyramid -me_method umh -subq 7 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -rc_eq 'blurCplx^(1-qComp)' -bf 16 -b_strategy 1 -bidir_refine 1 -refs 6 -deblockalpha 0 -deblockbeta 0 movie.mp4 I reduced the maxrate to 1500 because I read that if the bit rate is too high the iphone won't play the video, but still didn't work. I don't know where else to look... any ideas? Thanks in advance

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