SimpleWebScript and Alfresco 3.4 ... broken?

exel88 — Tue, 01 Mar 2011 09:21:30 GMT

Alfresco version: Community v3.4.0 (both C and D version) (with tomcat and mysql installation bundle)OS: Windows 7 Professional - EnglishIDE: Eclipse HeliosHello to everyone.In the last days, you're seen, I've had some problems with a Java Backend Web Script development. For ensure wich wasn't me th

Re: SimpleWebScript and Alfresco 3.4 ... broken?

exel88 — Tue, 01 Mar 2011 16:46:12 GMT

If I add a template file (simple.get.html.ftl) as this:


<html>
   <body>
      <p>${status.code}</p>
      <p>${status.message}</p>
   </body>
</html>   
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And

<format default="html">argument</format>‍

into simple.get.desc.xml.

This is the response:


<html>
   <body>
      <p>200</p>
      <p></p>
   </body>
</html>   
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For one moment, I was very Happy for this, but… if I change some data, if I make any operation, if I launch exception (e.g. webscript exception with 400 code), AND if I delete my JAR, the response is still the same!!!

I think the problem is in Alfresco. It doesn't recognize the class files and it manages the Java backend webscript as a simple webscript without java code. How … ? ops:

Anyone have the same problem?

Re: SimpleWebScript and Alfresco 3.4 ... broken?

mrogers — Tue, 01 Mar 2011 17:02:37 GMT

The web script implementation is rock solid, otherwise Share would not work and there would be hundreds of unit test failures.

I find your description unclear but I do note that I don't see your Java Backed Web Script being registered anywhere.

Re: SimpleWebScript and Alfresco 3.4 ... broken?

exel88 — Wed, 02 Mar 2011 10:56:38 GMT

Thank you for your reply mrogers.

I find your description unclear but I do note that I don't see your Java Backed Web Script being registered anywhere.

Me too. Off course, this is the problem.
I'm new on Alfresco Web Script development, but I've only one problem: deployment!

I followed the Alfresco Wiki and "Alfresco 3 Web Services" book where is described step by step webscript deployment. The problem is in the directory path I used (I think).

Where I can put the files? :shock:

This morning I've traied another example.

HelloworldJavaWebScript.java


package com.packtpub.a3ws.samples.ch07;

import java.util.HashMap;
import java.util.Map;
import org.springframework.extensions.webscripts.Cache;
import org.springframework.extensions.webscripts.DeclarativeWebScript;
import org.springframework.extensions.webscripts.Status;
import org.springframework.extensions.webscripts.WebScriptRequest;


public class HelloWorldJavaWebScript extends DeclarativeWebScript {
   @Override
   protected Map<String, Object> executeImpl(WebScriptRequest req, Status status, Cache cache) {
      Map<String, Object> model = new HashMap<String, Object>();
      model.put("message", "Hello, world");
      return model;
   }
}
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jhello-context.xml


<bean id="webscript.com.packtpub.a3ws.samples.ch07.jhello.get" 
   class="com.packtpub.a3ws.samples.ch07.HelloWorldJavaWebScript" 
   parent="webscript" />
‍‍‍‍‍

jhello.get.desc.xml


<webscript>
  <shortname>jhello</shortname>
  <description>Another try</description>
  <url>/jhello</url>
  <authentication>none</authentication>
  <format default="html">argument</format>
</webscript>
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jhello.get.html.ftl


<html>
<body>
<p>If it doesn't work, it will be a tragedy!</p>
<p>${message}</p>
</body>
</html>
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I think files are correct. It's wrong?

I've compiled JAVA into CLASS and this is my directory:


com/packtpub/a3ws/samples/ch07/HelloWorldJavaWebScript.class
‍‍‍

Now, the problem is the files' location. I founded many location, many classpath and more. But, none is the correct place.

WHERE? XD I don't understand this. Where I could put che class file? JAR file (WEB-INF/lib doesn't work)? Descriptor and template files? Which what folder tree?

Actually, this is my situation:


…\WEB-INF\classes\alfresco\templates\webscripts\com\packtpub\a3ws\samples\ch07
                                                                . jhello.get.desc.xml
                                                                . jhello.get.html.ftl
                                                                . jhello-context.xml
‍‍‍‍‍‍


…\WEB-INF\classes\com\packtpub\a3ws\samples\ch07\HelloWorldJavaWebScript.class‍‍

And this is the result:


jhello
GET /alfresco/service/jhello
Description:   Another try
Authentication:   none
Transaction:   none
Format Style:   argument
Default Format:   html
Id:   com/packtpub/a3ws/samples/ch07/jhello.get
Description:   classpath:alfresco/templates/webscripts/com/packtpub/a3ws/samples/ch07/jhello.get.desc.xml
‍‍‍‍‍‍‍‍‍‍‍


Web Script: com/packtpub/a3ws/samples/ch07/jhello.get
Generated from /alfresco/service/script/com/packtpub/a3ws/samples/ch07/jhello.get on Mar 2, 2011 11:53:23 AM

Script Properties
Id:   com/packtpub/a3ws/samples/ch07/jhello.get
Short Name:   jhello
Description:   Another try
Authentication:   none
Transaction:   none
Method:   GET
URL Template:   /jhello
Format Style:   argument
Default Format:   html
Negotiated Formats:   [undefined]
Implementation:   class org.springframework.extensions.webscripts.DeclarativeWebScript
Extensions:   [undefined]

Store: workspace://SpacesStore/app:company_home/app:dictionary/cm:extensionwebscripts

[No implementation files]

Store: workspace://SpacesStore/app:company_home/app:dictionary/cm:webscripts

[No implementation files]

Store: classpath:alfresco/extension/templates/webscripts

[No implementation files]

Store: classpath:alfresco/templates/webscripts

File: com/packtpub/a3ws/samples/ch07/jhello.get.desc.xml

<webscript>
  <shortname>jhello</shortname>
  <description>Another try</description>
  <url>/jhello</url>
  <authentication>none</authentication>
  <format default="html">argument</format>
</webscript>

File: com/packtpub/a3ws/samples/ch07/jhello.get.html.ftl

<html>
<body>
<p>If it doesn't work, it will be a tragedy!</p>
<p>${message}</p>
</body>
</html>

Store: classpath:webscripts

[No implementation files]
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The Web Script /alfresco/service/jhello has responded with a status of 500 - Internal Error.

500 Description:   An error inside the HTTP server which prevented it from fulfilling the request.
 
Message:   02020005 Wrapped Exception (with status template): 02020003 Errore durante lelaborazione del modello '{0}'. Contattare lamministratore di sistema.
    
Exception:   freemarker.core.NonStringException - Error on line 4, column 6 in com/packtpub/a3ws/samples/ch07/jhello.get.html.ftl Expecting a string, date or number here, Expression message is instead a org.springframework.extensions.webscripts.MessageMethod
    
   freemarker.core.Expression.getStringValue(Expression.java:126)
   freemarker.core.Expression.getStringValue(Expression.java:93)
   freemarker.core.DollarVariable.accept(DollarVariable.java:76)
   freemarker.core.Environment.visit(Environment.java:210)
   freemarker.core.MixedContent.accept(MixedContent.java:92)
   freemarker.core.Environment.visit(Environment.java:210)
   freemarker.core.Environment.process(Environment.java:190)
……..
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Thank's a lot.

Re: SimpleWebScript and Alfresco 3.4 ... broken?

exel88 — Wed, 02 Mar 2011 16:33:43 GMT

In addition to my last post, I already know which Alfresco needs to be restarted for see the new jar file.

Web Script doesn't work also if I used .jar instead .class files.
I used ANT project to build this jar, and here it is:


       […]
   
        <!– Execute: ant -f build.xml  –>

       […]

   <target name="compile" depends="init">
      <javac srcdir="${basedir}/src" destdir="${basedir}/build" classpathref="libs">
      </javac>
   </target>

   <path id="libs">
      <fileset dir="../alfresco-community-sdk-3.4.b/lib" includes="**/*.jar" />
   </path>

   <target name="archive" depends="compile">
      <jar destfile="${basedir}/deploy/jar/jhello.jar" basedir="${basedir}/build" compress="true" update="true" />
   </target>

</project>

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At this stage, I put the jhello.jar into …\tomcat\webapps\alfresco\WEB-INF\lib, I restart Tomcat.
Alfresco starts correctly but at this point … .jar are unrecognized.
:?:

Re: SimpleWebScript and Alfresco 3.4 ... broken?

exel88 — Thu, 03 Mar 2011 09:18:16 GMT

Any suggestion?

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SimpleWebScript and Alfresco 3.4 ... broken?

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Re: SimpleWebScript and Alfresco 3.4 ... broken?

Re: SimpleWebScript and Alfresco 3.4 ... broken?