[help] added forum data by web service, but can not view

[leon]

I use web service to add data to Alfresco as post of a topic in forum of a Node. there is sth unusal in the server, and I can not view the topic in the web client-UI of Alfresco
but I can not check where is  the error.
   the following section is some message of my application .I sincincely request your help…

server console prompts :

message when add the Node:

16:56:14,484 WARN  [org.alfresco.repo.node.integrity.IntegrityChecker] Found 1 integrity violations:  The association child multiplicity has been violated:    Association: Association[ class=ClassDef [ name={http://www.alfresco.org/model/forum/1.0}discussable], name={http://www.alfresco.org/model/forum/1.0}discussion, target class={http://www.alfresco.org/model/forum/1.0}forum, source role=null, target role=null]   Required child Multiplicity: 1..1   Actual child Multiplicity: 0   AssocTypeQName = {http://www.alfresco.org/model/forum/1.0}discussion   sourceNodeRef = 4c5b13ad-cacb-11da-95ba-993a183228c0‍‍‍‍‍‍‍‍‍

 

message when view in web client:

   javax.faces.el.EvaluationException: Exception while invoking expression #{ForumsBean.discuss}   caused by:   java.lang.IllegalStateException: Node has the discussable aspect but does not have 1 child, it has 0 children!‍‍‍‍‍

node structuct of

         Association association = new Association();         association.setAssociationType(Constants.ASSOC_DISCUSSION);         association.setDirection(AssociationDirectionEnum.target);         children = repositoryService.queryAssociated(ref, new Association[] {association});  ‍‍‍‍‍

results is : 

   <?xml version="1.0" encoding="UTF-8" ?> - <Node NodeType="{http://www.alfresco.org/model/content/1.0}content">   - <Properties>        <Property>modifier=admin</Property>         <Property>editInline=true</Property>         <Property>modified=2006-04-13T16:56:14.468+08:00</Property>         <Property>description=</Property>         <Property>node-uuid=4c5b13ad-cacb-11da-95ba-993a183228c0</Property>         <Property>creator=admin</Property>         <Property>store-protocol=workspace</Property>         <Property>content=contentUrl=store://2006/4/13/16/4c623f9f-cacb-11da-95ba-993a183228c0.bin|mimetype=text/html|size=1318|encoding=UTF-8</Property>         <Property>title=a.htm</Property>         <Property>name=a.htm</Property>         <Property>store-identifier=SpacesStore</Property>         <Property>created=2006-04-13T16:55:46.921+08:00</Property>      </Properties>   - <Aspects>        <Aspect>{http://www.alfresco.org/model/content/1.0}auditable</Aspect>         <Aspect>{http://www.alfresco.org/model/content/1.0}titled</Aspect>         <Aspect>{http://www.alfresco.org/model/system/1.0}referenceable</Aspect>         <Aspect>{http://www.alfresco.org/model/forum/1.0}discussable</Aspect>         <Aspect>{http://www.alfresco.org/model/application/1.0}inlineeditable</Aspect>      </Aspects>   - <Children>      - <Node NodeType="{http://www.alfresco.org/model/forum/1.0}forum">         - <Properties>              <Property>modifier=admin</Property>               <Property>modified=2006-04-13T16:56:16.187+08:00</Property>               <Property>icon=forum_large</Property>               <Property>node-uuid=5c3c04c6-cacb-11da-95ba-993a183228c0</Property>               <Property>creator=admin</Property>               <Property>store-protocol=workspace</Property>               <Property>name=update.html discussion</Property>               <Property>store-identifier=SpacesStore</Property>               <Property>created=2006-04-13T16:56:13.593+08:00</Property>            </Properties>         - <Aspects>              <Aspect>{http://www.alfresco.org/model/content/1.0}auditable</Aspect>               <Aspect>{http://www.alfresco.org/model/application/1.0}uifacets</Aspect>               <Aspect>{http://www.alfresco.org/model/system/1.0}referenceable</Aspect>            </Aspects>        </Node>     </Children>  </Node> ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

java code is

   // uuid is the id of resource.   public String post(String uuid, String author, String title, String content) {      String child_uuid = null;      try {         Node node=getNode(uuid);         if(!hasAspect(node,Constants.ASPECT_DISCUSSABLE)) {            makeDiscussable(uuid,title);         }                  // get topic uuid ,if does not exit, create a topic child node         String topic_id = getOrCreateTopic(repositoryService, uuid, title);         //add a content node for title and cotent         child_uuid = post_helper(topic_id, author, title, content);      } catch (Exception e) {         e.printStackTrace();      }      return child_uuid;   }      public void makeDiscussable(String uuid, String title) {      try {         // add discussable aspect         addAspect(repositoryService, Constants.ASPECT_DISCUSSABLE, null,               uuid);         // add forum         String forum_id = WebServiceUtil.createNode(Constants.TYPE_FORUM,               uuid, "admin", title + "  discussion", null).getUuid();                  // add association         addDiscussionAssociation(uuid,forum_id);         // add uifacets aspect         NamedValue[] props = new NamedValue[] { new NamedValue(               Constants.PROP_ICON, "forum_large") };         addAspect(repositoryService, Constants.ASPECT_UIFACETS, props,               forum_id);      } catch (Exception e) {         e.printStackTrace();      }   }      public void addDiscussionAssociation(String uuid uuid, String forum_id) throws Exception {      // add DISCUSSION association from Forum to Discussable Node      CML cml = new CML();      CMLCreateAssociation discusstion = new CMLCreateAssociation();      discusstion.setAssociation(Constants.ASSOC_DISCUSSION);      discusstion.setFrom(WebServiceUtil.createPredicate(uuid));      discusstion.setTo(WebServiceUtil.createPredicate(forum_id));      cml.setCreateAssociation(new CMLCreateAssociation[] { discusstion });      UpdateResult[] updateResults = repositoryService.update(cml);      if(updateResults!=null) {         for(UpdateResult r:updateResults) {            Reference source=r.getSource();            Reference target=r.getDestination();            System.out.println("source = " + source.getUuid());            System.out.println("target = " + target.getUuid());         }      }   }    ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[leon]

I find a segment code of org.alfresco.web.bean.wizard.NewDiscussionWizard. It is from  line 96 to 99 in startWizard(ActionEvent event)

 ChildAssociationRef childRef = this.nodeService.createNode(this.discussingNodeRef,                ForumModel.ASSOC_DISCUSSION,               QName.createQName(ForumModel.FORUMS_MODEL_URI, "discussion"),                ForumModel.TYPE_FORUM, forumProps);                  forumNodeRef = childRef.getChildRef();‍‍‍‍‍‍‍‍

my question is how to implement a equal function of nodeService.createNode in web service.

 /**     * Creates a new, non-abstract, real node as a primary child of the given parent node.     *      * @param parentRef the parent node     * @param assocTypeQName the type of the association to create.  This is used     *      for verification against the data dictionary.     * @param assocQName the qualified name of the association     * @param nodeTypeQName a reference to the node type     * @param properties optional map of properties to keyed by their qualified names     * @return Returns a reference to the newly created child association     * @throws InvalidNodeRefException if the parent reference is invalid     * @throws InvalidTypeException if the node type reference is not recognised     *      * @see org.alfresco.service.cmr.dictionary.DictionaryService     */    public ChildAssociationRef createNode(            NodeRef parentRef,            QName assocTypeQName,            QName assocQName,            QName nodeTypeQName,            Map<QName, Serializable> properties)            throws InvalidNodeRefException, InvalidTypeException;‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍