Accessing WCM Content through Web Scripts

[himanshu]

Hi,
I am a newbie to alfresco. I have created a sample wcm project and want to create a web script that will return me the contents of a specified file.
I saw an example in the forum for the same that returned the contents of a file in Guest Home. Now when i try to access the files in my web project i can either
1) Traverse the node via the path.
The script for that I used for accessing the file Guest Home directory is :

var data = companyhome.childByNamePath("/Guest Home/a.xml");
if(data == null ){
logger.log("No files found");
      status.code = 404;
      status.message = "No files found";
      status.redirect = true;
} else {

model.storeid = data.getId();
   model.dataRetrieved = data;
}
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2)The second way could be performing a lucene search for the ID of that file.
The code for the same is:

var files = search.luceneSearch("ID:\"workspace://SpacesStore/0d18339a-1c6e-4b92-975f-1d9004e96264\"");

if (files == null || files.length == 0) {
      logger.log("No files found");
      status.code = 404;
      status.message = "No files found";
      status.redirect = true;
} else {
          var data = files[0];
          model.storeid = data.getId();
   model.dataRetrieved = data;
}
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Now both the codes work fine for the file in the guest home directory.
But when i try to perform a lucene search for a file in my wcm directory (again with the help of its storeid), it gives me no file found and i have no idea how to get the name path for that particular file!!!!!
Please help!!!!!!!!

[mark_smithson]

Hi himanshu,

Content stored in WCM is stored in a different type of repository (AVM) so you have to access it differently.

Code like this below has worked for us:

script: {
   var store="youwebapp–sandboxname";
   var contentPath ="/www/avm_webapps/ROOT/path/to/your/content";
   if (storeExists(store)) {   
      var node = avm.lookupNode(store + ":" + contentPath);
           if (node == null) {
              status.code = 404;
         status.message = store + " could not be found.";
         status.redirect = true;
         return;
           }
           model.data = node;
   }
}

function storeExists(store){
   var storeRoot = avm.lookupStore(store);
   if (storeRoot == null){
      status.code = 404;
      status.message = store + " could not be found.";
      status.redirect = true;
      return false;
   }   
   return true;
}
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[himanshu]

Hi Mark,

Thanks for the help. The code works .

I was now trying to do the same thing with java backed web scripts. But as usual, I am again stuck with which classes to use.

I was able to access a file in my web project by instantiating an object of the NodeRef class with that file's "Alfresco Node Reference" value.

But i want to access it by using the name (or the path) of the file and not its reference. My tasks include retrieving the list of the files in a particular folder(space) within the web project.

Thanks again.

Regards
Himanshu

[mark_smithson]

Hi Himanshu,

Is there a particular reason why you need to use a Java backed web script? Having the script in JS and FTL gives you a lot of flexibility and we have found performance to be acceptable.

There is API documentation in the wiki - http://wiki.alfresco.com/wiki/Alfresco_Content_Management_Java_API.

I have also found it useful to look at the java code for the webscript objects, usch as ScriptNode in the SDK.

Regards

Mark