creatng parent->child folders via API

[arusellcampion]

Dear all,
I'd really appreciate any clues as to how I create a parent/child set of nodes (folders) using the Alfresci API. Specifically I want to create a parent (student) folder for example, "ArmitageShanks123456" followed by a parent folder of "EmailCorrespondence". There will be thousands of these parent/child pairs to create; Indeed there may be a requirement to create up to 12 sub folders for each student folder but for now I'd be pleased to be able to create  a parent/child pair of nodes.

I am able to create a parent folder through explorer then create a sub-folder for it via the class below but I can't create a parent folder programatically then create a sub-folder for it - again programatically. Here's my class:

package uk.ac.sheffield.cics.extensions.addContent;

import java.io.IOException;
import java.io.OutputStream;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.alfresco.webservice.repository.UpdateResult;
import org.alfresco.webservice.types.CML;
import org.alfresco.webservice.types.CMLCreate;
import org.alfresco.webservice.types.NamedValue;
import org.alfresco.webservice.types.ParentReference;
import org.alfresco.webservice.types.Store;
import org.alfresco.webservice.util.AuthenticationUtils;
import org.alfresco.webservice.util.Constants;
import org.alfresco.webservice.util.Utils;
import org.alfresco.webservice.util.WebServiceFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import uk.ac.sheffield.cics.extensions.utils.Attributes;

@SuppressWarnings("serial")
public class CreateContentServlet extends HttpServlet{
   private String folder = "";   
   private static Log log = LogFactory.getLog(CreateContentServlet.class);
   
   @Override
   protected void doGet(HttpServletRequest request, HttpServletResponse response)
         throws ServletException, IOException {
      log.info("doGet called");
      folder = request.getParameter("folder");   
      createContent(request, response, Attributes.PARENT_FOLDER, folder);            
   }
   

   @Override
   protected void service(HttpServletRequest req, HttpServletResponse resp)
         throws ServletException, IOException {
      log.info("service called");
      super.service(req, resp);
   }
   
   private void createContent(HttpServletRequest request, HttpServletResponse response, String parent, String folder) throws IOException
   {
      
      // Start the session
      AuthenticationUtils.startSession(Attributes.USERNAME, Attributes.PASSWORD);         
      try {
         // Make your web service call in here
         createFolder(parent, folder, request, response);
      }
      catch (Throwable e) {
         log.error("createContent erorr: " + e.toString());
         e.printStackTrace();
      }
      finally {
         // End the session
         AuthenticationUtils.endSession();
      }     
    }
   
   protected static void createFolder(String parent, String folder, HttpServletRequest request, HttpServletResponse response) throws Exception
    {
      final Store STORE = new Store(Constants.WORKSPACE_STORE, "SpacesStore");
      // The default workspace store is SpacesStore
       //Store storeReference = new Store(Constants.WORKSPACE_STORE, "SpacesStore");

       // We want to create a new folder or workspace called child in the parent folder under company home
       // Create parent reference to the parent space in company home
       //ParentReference parentReference = new ParentReference(STORE, null, "/app:company_home/cm:parent",
      ParentReference parentReference = new ParentReference(
                    STORE,
                    null, 
                    "/app:company_home/cm:" + parent,
                    Constants.ASSOC_CONTAINS, 
                    Constants.createQNameString(Constants.NAMESPACE_CONTENT_MODEL, "sample_folder")); 
                      
       // Create the child folder
       NamedValue[] properties = new NamedValue[] { Utils.createNamedValue(Constants.PROP_NAME, folder) };
       CMLCreate create = new CMLCreate("1", parentReference, null, null, null, Constants.TYPE_FOLDER, properties);       
       CML cml = new CML();
       cml.setCreate(new CMLCreate[] { create });
       UpdateResult[] results = WebServiceFactory.getRepositoryService().update(cml);

       // From the result of the web service call we want to retrieve the node reference for the child folder so we can access it later
       String childReference = results[0].getDestination().getUuid();
       log.info("Created a new workspace, node is: " + childReference); 
       OutputStream out = response.getOutputStream();
        response.setContentType("text/html");
        out.write(childReference.getBytes());
    }
}

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What I'd envisaged (naively) was that I could make two calls to my createContent method:
First to create the student folder:
URL:

http://localhost:8080/alfresco/app/addContent?folder=ArmitageShanks123456
'>
http://localhost:8080/alf...

Method call:

 createContent(request, response,"TopLevel", "ArmitageShanks123456")
‍‍‍

Secondly to create a sub folder for say, email correspondence:
URL:

http://localhost:8080/alfresco/app/addContent?folder=EmailCorrespondence
'>
http://localhost:8080/alfr...

Method call:

createContent(request, response, "ArmitageShanks123456", Attributes.EMAIL_FOLDER)
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The error thrown when I attempt to create the sub-folder using the latter example is below:

09:22:45,312  ERROR [extensions.addContent.CreateContentServlet] createContent erorr: 
AxisFault
 faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.generalException
 faultSubcode: 
 faultString: 
 faultActor: 
 faultNode: 
 faultDetail: 
   {http://www.alfresco.org/ws/service/repository/1.0}RepositoryFault:<ns1:errorCode>0</ns1:errorCode><ns1:message>java.lang.IllegalStateException: Failed to resolve to a single NodeRef with parameters (store=workspace:SpacesStore uuid=null path=/app:company_home/cm:ArmitageShanks123456), found 0 nodes.</ns1:message>
   {http://xml.apache.org/axis/}exceptionName:org.alfresco.repo.webservice.repository.RepositoryFault
   {http://xml.apache.org/axis/}stackTrace:
   at org.alfresco.repo.webservice.repository.RepositoryWebService.update(RepositoryWebService.java:335)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:397)
   at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:186)
   at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323)
   at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
   at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
   at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
   at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:454)
   at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281)
   at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:699)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
   at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
   at java.lang.Thread.run(Thread.java:619)

   {http://xml.apache.org/axis/}hostname:AndrewRussell


   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
   at java.lang.Class.newInstance0(Class.java:355)
   at java.lang.Class.newInstance(Class.java:308)
   at org.apache.axis.encoding.ser.BeanDeserializer.<init>(BeanDeserializer.java:104)
   at org.apache.axis.encoding.ser.BeanDeserializer.<init>(BeanDeserializer.java:90)
   at org.alfresco.webservice.repository.RepositoryFault.getDeserializer(RepositoryFault.java:146)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.apache.axis.encoding.ser.BaseDeserializerFactory.getSpecialized(BaseDeserializerFactory.java:154)
   at org.apache.axis.encoding.ser.BaseDeserializerFactory.getDeserializerAs(BaseDeserializerFactory.java:84)
   at org.apache.axis.encoding.DeserializationContext.getDeserializer(DeserializationContext.java:464)
   at org.apache.axis.encoding.DeserializationContext.getDeserializerForType(DeserializationContext.java:547)
   at org.apache.axis.message.SOAPFaultDetailsBuilder.onStartChild(SOAPFaultDetailsBuilder.java:157)
   at org.apache.axis.encoding.DeserializationContext.startElement(DeserializationContext.java:1035)
   at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
   at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
   at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
   at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
   at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
   at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
   at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
   at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
   at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
   at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
   at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
   at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
   at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
   at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
   at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
   at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
   at org.apache.axis.client.Call.invoke(Call.java:2767)
   at org.apache.axis.client.Call.invoke(Call.java:2443)
   at org.apache.axis.client.Call.invoke(Call.java:2366)
   at org.apache.axis.client.Call.invoke(Call.java:1812)
   at org.alfresco.webservice.repository.RepositoryServiceSoapBindingStub.update(RepositoryServiceSoapBindingStub.java:986)
   at uk.ac.sheffield.cics.extensions.addContent.CreateContentServlet.createFolder(CreateContentServlet.java:87)
   at uk.ac.sheffield.cics.extensions.addContent.CreateContentServlet.createContent(CreateContentServlet.java:54)
   at uk.ac.sheffield.cics.extensions.addContent.CreateContentServlet.doGet(CreateContentServlet.java:36)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
   at uk.ac.sheffield.cics.extensions.addContent.CreateContentServlet.service(CreateContentServlet.java:44)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
   at java.lang.Thread.run(Thread.java:619)


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Thanks for looking,

AndyR

[mrogers]

I think you simply have a mismatch in the names of the folders.

Although after seeing Florian's demo of Open Cmis at Alfresco DevCon, I'd strongly suggest that you look using that as a remote interface instead.

[arusellcampion]

Thanks for the reply. I'm not sure where the mismatch is you mention. Is it in the parameters to createQNameString? It's not clear what should go in the last parameter and the example I used as a basis http://sheilapollard.com/2009/03/19/alfresco-part-three-create-a-new-workspace-using-a-web-service-c... passed "sample_folder". I've tried passing my folder into createQNameString but the same error is thrown. As a novice I'd welcome any obvious pointers.

Andrew

…
Constants.createQNameString(Constants.NAMESPACE_CONTENT_MODEL, "sample_folder")
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