How to add an attachment using OpenCMIS with d:content

[johnpneal]

HiL

I have my content XML as follows:

<model name="hs:HotelSolution">
<!– Optional meta-data about the model –>
<description>Hotel Solution Content Model</description>
<author>Kingsly Rajamani</author>
<version>1.0</version>

<imports>
<!– Import Alfresco Dictionary Definitions –>
<import uri="http://www.alfresco.org/model/dictionary/1.0" prefix="d"/>
<!– Import Alfresco Content Domain Model Definitions –>
<import uri="http://www.alfresco.org/model/content/1.0" prefix="cm"/>
</imports>

<namespaces>
<namespace uri="http://www.ihgmerlin.com/hotelSolution" prefix="hs"/>
</namespaces>
−
<types>
<!– Definition of new Content Type: Idea Content –>

<type name="hs:IdeaContent">
<title>Hotel Solution Idea Content</title>
<parent>cm:content</parent>

<properties>

  <property name="hs:name">
    <type>d:text</type>
  </property>
  <property name="hs:hotel">
    <type>d:text</type>
  </property>
  <property name="hs:title">
    <type>d:text</type>
  </property>
</properties>
<associations/>
</type>
<!– Definition of new Content Type: Idea Attachment –>

<type name="hs:IdeaAttachment">
<title>Hotel Solution Idea Attachment</title>
<parent>cm:content</parent>
<properties>

  <property name="hs:NameValue">
    <type>d:text</type>
  </property>
  <property name="hs:HotelValue">
    <type>d:text</type>
  </property>
  <property name="hs:TitleValue">
    <type>d:text</type>
  </property>
  <property name="hs:Attachment"> 
    <type>d:content</type>
  </property>
</properties>
<associations/>
</type>
</types>
<aspects/>
</model>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

I can successfully add the IdeaContent.  I was trying to add the second type using OpenCMIS.  My current code up to this point is as follows:

                        CmisObject currentObject ,,,

                        ContentStream contentStream = new ContentStreamImpl("Test Content", null,
         "plain/text", new ByteArrayInputStream(contentString.getBytes()));         

         Map<String, Object> properties = new HashMap<String, Object>();
         properties.put(PropertyIds.NAME, "Test Idea");
         properties.put(PropertyIds.OBJECT_TYPE_ID, "D:hs:IdeaContent");
         properties.put("hs:name", "A name");      
         properties.put("hs:hotel", "A hotel");
         properties.put("hs:title", "A title");
         
         List<Ace> addAces = new LinkedList<Ace>();
         List<Ace> removeAces = new LinkedList<Ace>();
         List<Policy> policies = new LinkedList<Policy>();

         ObjectId newId = session.createDocument(properties, objectId,
               contentStream, VersioningState.MAJOR, policies, addAces,
               removeAces);
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This works just fine.  Any help is appreciated on how to add the second type and its attachment would be appreciated.

[fmui]

An object can only have one object type.  You can attach multiple aspects types, though. Is that what you want to do?  You haven't defined an aspect type in your XML.

[johnpneal]

I appreciate your help since I am new to all this and am struggling with the whole concept.  What I am trying to do is attach multiple files to a content type and I am not sure if I am doing the XML correctly, here is my last attempt.  I have modified the XML but probably need a little help there along with a code hint.  Here is my new XML:

<type name="hs:IdeaContent">
  <title>Hotel Solution Idea Content</title>
  <parent>cm:content</parent>
  <properties>

  <property name="hs:name">
    <type>d:text</type>
  </property>

  <property name="hs:hotel">
    <type>d:text</type>
  </property>

  <property name="hs:title">
    <type>d:text</type>
  </property>

  <property name="hs:attach1">
    <type>d:content</type>
  </property>

  <property name="hs:attach2">
    <type>d:content</type>
  </property>
</properties>
<associations/>
</type>
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So I am probably doing something wrong with the XML but I just want to attach say in attach1 a word document and attach2 a pdf document, etc.  There will be a maximum of 5 attachments.  I understand that Alfresco does not allow multiple attachments.  The original XML was trying to set up a second <type> that would allow me to have some attributes around an attachment but I seem to be failing in both respects.  I am able to create the content or create a document but my trouble is adding attachments to the content.  Maybe I am crazy trying to do this but that's what the business wants :-).  I really like the OpenCMIS API but am struggling a little bit since I am new to Alfresco and CMS in general and definitely OpenCMIS.

Regards,

John

[fmui]

CMIS only supports one content stream per document object. (It supports multiple renditions per document, but that's a different story.)
So you have to create multiple objects.

Since I don't know your application I can't tell you what would be the best way to set up your model. Here are a few ideas:

• Create a folder, add your properties to that folder object and put all related documents into this folder.


• Create a relationship type and connect all related documents with relationships.


• Find a common key and add it all documents. Then you can find all related documents with a query.

[tusharpatel88]

Hi I want to attach file during my workflow. I add two parent for it. Due to it is not working. Is there any solution for atach file.

<parent>bpm:workflowTask</parent>
<parent>cm:cmobject</parent>

[kaynezhang]

I'm not very clear about your requirement .
You can try to attach a foder to your workflow,and add your attached files to this folder.

[johnpneal]

Thanks for the suggestion.  I am trying that now but getting an internal server error when I create the relationship between the Custom Content Type and any document.  My code is as follows:

      Document document1 = null;
      Document document2 = null;
      ContentStream content = null;
      String path = null;
      Folder folder1 = null;
      Folder folder2 = null;
      
      try {
         //First get the folders we are working with
         session = createSession();
         
         path = "/User Homes/Ideas/";
         folder1 = (Folder) session.getObjectByPath(path);
         assertNotNull(folder1);
         String id = folder1.getId();
         assertNotNull(id);
         System.out.println("ID = " + id);
         
         path = "/User Homes/Ideas/Idea Documents";
         folder2 = (Folder) session.getObjectByPath(path);
         assertNotNull(folder2);
         id = folder2.getId();
         assertNotNull(id);
         System.out.println("ID = " + id);
         
         //Next create the content type
         String name = "Test Idea - " + System.currentTimeMillis();         
         String contentString = "This is a test idea!!!";
         
         ContentStream contentStream = new ContentStreamImpl("Test Content", null,
         "plain/text", new ByteArrayInputStream(contentString.getBytes()));         

         Map<String, Object> properties = new HashMap<String, Object>();
         properties.put(PropertyIds.NAME, name);
         properties.put(PropertyIds.OBJECT_TYPE_ID, "D:hs:IdeaContent");
         properties.put("hs:name", "A name");      
         properties.put("hs:hotel", "A hotel");
         properties.put("hs:title", "A title");
         properties.put("hs:role", "A role");
         properties.put("hs:summary", "A summary");
         properties.put("hs:results", "A resutls");
         properties.put("hs:steps", "A steps");
         properties.put("hs:cost", "A cost");
         properties.put("hs:time", "A time");
         
         List<String> hotelBrands = new ArrayList<String>();

         hotelBrands.add("Hotel Brand 1");
         hotelBrands.add("Hotel Brand 2");
         properties.put("hs:hotelBrands", hotelBrands);


         List<String> hotelTypes = new ArrayList<String>();

         hotelTypes.add("Hotel Type 1");
         hotelTypes.add("Hotel Type 2");
         properties.put("hs:hotelTypes", hotelTypes);
         
         List<String> hotelRegions = new ArrayList<String>();

         hotelRegions.add("Hotel Region 1");
         hotelRegions.add("Hotel Region 2");
         properties.put("hs:hotelRegions", hotelRegions);
         
         List<String> keywords = new ArrayList<String>();

         keywords.add("Keyword 1");
         keywords.add("Keyword 2");
         properties.put("hs:keywords", keywords);   
         
      
         List<Ace> addAces = new LinkedList<Ace>();
         List<Ace> removeAces = new LinkedList<Ace>();
         List<Policy> policies = new LinkedList<Policy>();


         document1 = folder1.createDocument(properties, contentStream, VersioningState.MAJOR, policies, addAces, removeAces, session.getDefaultContext());
         assertNotNull(document1);
         assertTrue(document1 instanceof Document);
         System.out.println("New ID = " + document1.getId());
         
         
         //Create the document to use
         name = "JEHA Overview.doc";
         String saveName = "JEHA Overview - "  + System.currentTimeMillis() + ".doc";
         String pathName = "c:\\" + name;
      
                   Map<String,String> newDocProps = new HashMap<String, String>();
                   newDocProps.put(PropertyIds.OBJECT_TYPE_ID, "D:cmiscustom:document");
                   newDocProps.put(PropertyIds.NAME, saveName);
           
         contentStream = new ContentStreamImpl(name + System.currentTimeMillis(), null,
               "application/msword", new ByteArrayInputStream(
                     createFile(pathName)));
         
         document2 = folder2.createDocument(newDocProps, contentStream, VersioningState.MAJOR, policies, addAces, removeAces, session.getDefaultContext());
         assertTrue(document2 instanceof Document);
         assertNotNull(document2);
         assertEquals(document2.getContentStreamMimeType(), "application/msword");         
         
                   Map<String, Serializable> relProps = new HashMap<String, Serializable>(); 
                   relProps.put("cmis:sourceId", document1.getId()); 
                   relProps.put("cmis:targetId", document2.getId()); 
                   relProps.put("cmis:objectTypeId", "R:cmiscustom:assoc");
                   session.createRelationship(relProps, policies, addAces, removeAces);            
      } catch (Exception e) {
         System.out.println("Exception" + e);
         e.printStackTrace();
         fail("Unexpected Exception");
      } 
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Exception as follows:

Exceptionorg.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException: Internal Server Error
org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException: Internal Server Error
   at org.apache.chemistry.opencmis.client.bindings.spi.atompub.AbstractAtomPubService.convertStatusCode(AbstractAtomPubService.java:411)
   at org.apache.chemistry.opencmis.client.bindings.spi.atompub.AbstractAtomPubService.post(AbstractAtomPubService.java:499)
   at org.apache.chemistry.opencmis.client.bindings.spi.atompub.ObjectServiceImpl.createRelationship(ObjectServiceImpl.java:290)
   at org.apache.chemistry.opencmis.client.runtime.PersistentSessionImpl.createRelationship(PersistentSessionImpl.java:655)
   at com.ihg.test.TestAlfresco.testCreateRelationship(TestAlfresco.java:214)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
   at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
   at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
   at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
   at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
   at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
   at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
   at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
   at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
   at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
   at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
   at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
   at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
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When I run this code extrapolated from the OpenCMIS test suite it works fine:

         String path = "/User Homes/Ideas/Idea Documents";
         Folder folder = (Folder) session.getObjectByPath(path);
         assertNotNull(folder);
         String id = folder.getId();
         assertNotNull(id);
         System.out.println("ID = " + id);
   
           Map<String,String> newDocProps1 = new HashMap<String, String>();
           newDocProps1.put(PropertyIds.OBJECT_TYPE_ID, "D:cmiscustom:document");
           newDocProps1.put(PropertyIds.NAME, "Test Doc 1");
           ContentStream contentStream1 = new ContentStreamImpl("xyz.txt", null, "plain/text", new ByteArrayInputStream("some content".getBytes()));
           Document doc1 = folder.createDocument(newDocProps1, contentStream1, VersioningState.MAJOR, null, null, null, session.getDefaultContext());
   
           Map<String,String> newDocProps2 = new HashMap<String, String>();
           newDocProps2.put(PropertyIds.OBJECT_TYPE_ID, "D:cmiscustom:document");
           newDocProps2.put(PropertyIds.NAME, "Test Doc 2");
           ContentStream contentStream2 = new ContentStreamImpl("xyz.txt", null, "plain/text", new ByteArrayInputStream("some content".getBytes()));
           Document doc2 = folder.createDocument(newDocProps2, contentStream2, VersioningState.MAJOR, null, null, null, session.getDefaultContext());
           
           Map<String, Serializable> relProps = new HashMap<String, Serializable>(); 
           relProps.put("cmis:sourceId", doc1.getId()); 
           relProps.put("cmis:targetId", doc2.getId()); 
           relProps.put("cmis:objectTypeId", "R:cmiscustom:assoc");
           session.createRelationship(relProps, null, null, null);   
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Is there an issue with the custom content type having a relationship to a document?  It seems to work when I use 2 documents.  I have learned allot by tinkering with your replies and am getting closer to my goal each time.  I can now create the custom content, documents, folders, etc. with no problem.  Your help has been appreciated :-).

John