topic Java-Backed web script in Alfresco Archive

Java-Backed web script

sihnu — Fri, 01 Apr 2011 09:54:50 GMT

Hello, I asked in another topic how to refer to a certain node and it seems to be impossible with js. But with java there is a method for it.I've been now practicing implementation of Java-Backed web scripts.I've got java class file:name: SimpleWebScript.classlocation: shared/classes/alfresco/lib/co

Re: Java-Backed web script

openpj — Fri, 01 Apr 2011 10:06:19 GMT

Try to change your Spring bean definition in this way:


<bean id="webscript.demo.simple.simple.get" 
      class="org.alfresco.module.demoscripts.SimpleWebScript"
      parent="webscript">
    </bean>
‍‍‍‍‍‍

Hope this helps :wink:

Re: Java-Backed web script

sihnu — Fri, 01 Apr 2011 11:02:23 GMT

It didn't help.. =( I'm Getting same "error":

An error has occured in the Share component: /share/service/components/dashlets/user-calendar.
It responded with a status of 500 - Internal Error.

I'm getting the same error… Why "simple" two times? I got only one folder called "simple" and why to change class to "org.alfresco.module.demoscripts.SimpleWebScript"? my class file is at: shared/classes/alfresco/lib/

Little explanation would be nice 😉

I read from the wiki:

Locations of the files

On Alfresco Share Standalone (3.3 or greater)

.class files in <Alfresco>/tomcat/webapps/alfresco/WEB-INF/classes/<class folder structure>

But should it now work at shared/classes/alfresco also? Isn't it same thing if I pleace my filese at webapps/alfreso/WEB-INF/classes/ or shared/classes/?

Re: Java-Backed web script

mrogers — Fri, 01 Apr 2011 11:13:37 GMT

a) I don't think it should have two "simple"
b) Never stick your stuff in WEB-INF
c) I don't think you need the "lib" in your path. That does not match your package name.

Re: Java-Backed web script

sihnu — Fri, 01 Apr 2011 12:23:50 GMT

Thanks for the answers but still no luck… So I assume now that the correct id for the bean is: webscript.demo.simple.get and what comes to the class definition… I've tried now:

class="org.alfresco.module.demoscripts.SimpleWebScript"

and I placed the SimepleWebScript.class file to shared/classes/alfresco/ so that there is no lib folder anymore…

That didn't work. So I tried this:

class="alfresco.SimpleWebScript" as my class file is now at the root of the shared/classes/alfresco folder. That didn't work either… I also tried to move the class file to SimpleWebScript folder in alfresco folder as I thought the name in the class definition is actually refering to folder but that didn't work either…

I also tried by creating structure org/alfresco/module/demoscripts/SimpleWebScript/SimpleWebScript.class and then org/alfresco/module/demoscripts/SimpleWebScript.class with definition: org.alfresco.module.demoscripts.SimpleWebScrip but neither of these worked…

I don't know where to place that class file and what the defition should be… :cry: I'm getting the same error all the time…

Re: Java-Backed web script

openpj — Fri, 01 Apr 2011 15:17:38 GMT

The class file can be in the classpath, this means that you can package all your Java classes in an unique JAR file and then you can put it in alfresco/WEB-INF/lib or in tomcat/shared/lib. This depends on the classloader that you want to use for these classes.

Hope this helps.

Re: Java-Backed web script

sihnu — Mon, 04 Apr 2011 06:35:47 GMT

I tried this:

I packed the .class file to simpleWebScript.jar and placed it at shared/classes/alfresco/lib. Then I defined the bean as:

<bean id="webscript.demo.simple.get" 
      class="alfresco.lib.simpleWebScript"
      parent="webscript">
</bean‍‍‍‍

>

I'm still getting the same error. Please help.

Re: Java-Backed web script

openpj — Mon, 04 Apr 2011 08:03:28 GMT

The descriptor file simple.get.desc.xml must be dropped in this folder:

/tomcat/shared/classes/alfresco/extension/templates/webscripts/demo‍

An I think that it should work now :wink:

Re: Java-Backed web script

sihnu — Mon, 04 Apr 2011 11:18:13 GMT

I got it working. Thanks for the help a lot. Though, couldn't get straight answer it sill led me to conclusion. The webscript didn't work in shared/classes/… but it did work when I followed this from word to word:

.jar file in <tomcat>/webapps/share/WEB-INF/lib or .class files in <Alfresco>/tomcat/webapps/alfresco/WEB-INF/classes/<class folder structure>
web-scripts-application-context.xml - <tomcat>/webapps/share/WEB-INF/classes/org/springframework/extensions/webscripts
simple.get.desc.xml - <tomcat>/webapps/share/WEB-INF/classes/alfresco/templates/webscripts/org/alfresco/demo

Gotta make some more experiments why I couldn't get it working in shared/classes/… class structure. Anyway, it works now… finally

P.S. Is there a button to mark this topic as solved or do I have to edit the topic name?

Re: Java-Backed web script

sihnu — Wed, 06 Apr 2011 08:34:21 GMT

Weird… yesterday my web script was working just fine but today I get this error all the time:

500 Description: An error inside the HTTP server which prevented it from fulfilling the request.

Message: java.lang.NullPointerException

It doesn't matter if I change the java code. I've tried also a code that does nothing. It always gives the same error. Could anyone help?

Re: Java-Backed web script

openpj — Wed, 06 Apr 2011 08:41:41 GMT

Take a look at the log file of Alfresco.

Re: Java-Backed web script

sihnu — Wed, 06 Apr 2011 09:24:21 GMT

Found multiple entries of this error:

SEVERE: Exception sending context initialized event to listener instance of class org.alfresco.web.app.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'LuceneFullTextSearchIndexer' defined in class path resource [alfresco/core-services-context.xml]: Cannot resolve reference to bean 'luceneFullTextSearchIndexer' while setting bean property 'target'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'luceneFullTextSearchIndexer' defined in class path resource [alfresco/core-services-context.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.alfresco.module.demoscripts.SimpleWebScript] for bean with name 'webscript.org.alfresco.demo.simple.get' defined in file [/home/<name>/alfresco

Darn… The class is not found… Again… I'm sure it did work yesterday… =/

Re: Java-Backed web script

openpj — Wed, 06 Apr 2011 09:30:16 GMT

No, I think that below in this log you will find the real cause of the issue, try to search in the log the "Caused by" clause :wink:

It seems a problem of the Alfresco configuration…

Re: Java-Backed web script

sihnu — Wed, 06 Apr 2011 11:11:43 GMT

Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.alfresco.module.demoscripts.SimpleWebScript] for bean with name 'webscript.org.alfresco.demo.simple.get' defined in file [/home/henril/alfresco-3.4.d/tomcat/webapps/alfresco/WEB-INF/classes/org/springframework/extensions/webscripts/web-scripts-application-context.xml]; nested exception is java.lang.ClassNotFoundException: org.alfresco.module.demoscripts.SimpleWebScript
   at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1208)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:568)
   at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1277)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:302)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:381)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:375)
   at org.alfresco.repo.search.impl.lucene.fts.FullTextSearchIndexerImpl.setBeanFactory(FullTextSearchIndexerImpl.java:296)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1422)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1389)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:512)
   … 46 more
Caused by: java.lang.ClassNotFoundException: org.alfresco.module.demoscripts.SimpleWebScript
   at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
   at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
   at org.springframework.util.ClassUtils.forName(ClassUtils.java:258)
   at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:408)
   at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1229)
   at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1200)
   … 55 more

Re: Java-Backed web script

openpj — Wed, 06 Apr 2011 12:06:41 GMT

Why are you using org.alfresco package?
That package is reserved for Alfresco application.

Re: Java-Backed web script

sihnu — Wed, 06 Apr 2011 12:32:04 GMT

It was in the exmaple…

Re: Java-Backed web script

openpj — Wed, 06 Apr 2011 12:34:02 GMT

Ok, but I suggest you to not use the org.alfresco package.