Java Code Examples for org.alfresco.service.cmr.repository.ContentService#getWriter()

/**
 * Delete the content stream
 */
public void delete()
{
    ContentService contentService = services.getContentService();
    ContentWriter writer = contentService.getWriter(nodeRef, this.property, true);
    OutputStream output = writer.getContentOutputStream();
    try
    {
        output.close();
    }
    catch (IOException e)
    {
        // NOTE: fall-through
    }
    writer.setMimetype(null);
    writer.setEncoding(null);
    
    // update cached variables after putContent()
    updateContentData(true);
}
 

@Test
public void canGuessMimeType()
{
    AuthenticationUtil.setAdminUserAsFullyAuthenticatedUser();
    
    ContentService contentService = (ContentService) ctx.getBean("ContentService");
    NodeService nodeService = (NodeService) ctx.getBean("NodeService");
    StoreRef storeRef = nodeService.createStore("workspace", getClass().getName()+UUID.randomUUID());
    NodeRef rootNodeRef = nodeService.getRootNode(storeRef);
    NodeRef nodeRef = nodeService.createNode(
                rootNodeRef,
                ContentModel.ASSOC_CHILDREN,
                QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, getClass().getSimpleName()),
                ContentModel.TYPE_CONTENT).getChildRef();

    ContentWriter writer = contentService.getWriter(nodeRef, ContentModel.PROP_CONTENT, true);
    // Pre-condition of test is that we're testing with a potentially problematic BackingStoreAwareCacheWriter
    // rather than a FileContentWriter, which we would expect to work.
    assertTrue(writer instanceof BackingStoreAwareCacheWriter);
    
    String content = "This is some content";
    writer.putContent(content);
    writer.guessMimetype("myfile.txt");
    
    assertEquals("text/plain", writer.getMimetype());
}
 

private void copyContentOnly(FileInfo sourceFileInfo, FileInfo destFileInfo, FileFolderService fileFolderService) throws WebDAVServerException
{
	ContentService contentService = getContentService();
    ContentReader reader = contentService.getReader(sourceFileInfo.getNodeRef(), ContentModel.PROP_CONTENT);
    if (reader == null)
    {
        // There is no content for the node if it is a folder
        if (!sourceFileInfo.isFolder())
        {
            // Non-folders should have content available.
            logger.error("Unable to get ContentReader for source node " + sourceFileInfo.getNodeRef());
            throw new WebDAVServerException(HttpServletResponse.SC_NOT_FOUND);
        }
    }
    else
    {
        ContentWriter contentWriter = contentService.getWriter(destFileInfo.getNodeRef(), ContentModel.PROP_CONTENT, true);
        contentWriter.putContent(reader);
    }
}
 

/**
 * Write content to the node from InputStream.
 * 
 * @param nodeRef Target node.
 * @param content Content stream.
 * @param mimetype MIME content type.
 * @param encoding Encoding. Can be null for text based content, n which case the best guess.
 */
protected void writeContent(NodeRef nodeRef, InputStream content, String mimetype, String encoding)
{
    InputStream bis = new BufferedInputStream(content, 4092);

    // Only guess the encoding if it has not been supplied
    if (encoding == null)
    {
        if (mimetypeService.isText(mimetype))
        {
            ContentCharsetFinder charsetFinder = mimetypeService.getContentCharsetFinder();
            encoding = charsetFinder.getCharset(bis, mimetype).name();
        }
        else
        {
            encoding = "UTF-8";
        }
    }
    
    if (log.isDebugEnabled())
    {
        log.debug("Write content (MimeType=\"" + mimetype + "\", Encoding=\"" + encoding + "\"");
    }
    
    
    ContentService contentService = getContentService();
    ContentWriter writer = contentService.getWriter(nodeRef, ContentModel.PROP_CONTENT, true);
    writer.setMimetype(mimetype);
    writer.setEncoding(encoding);
    writer.putContent(bis);
}
 

/**
 * This method writes space as a content. We need this space because rules doesn't proceed documents with empty content. We need rule processing for command email messages with
 * empty body.
 * 
 * @param nodeRef Reference to the parent node
 */
private void writeSpace(NodeRef nodeRef)
{
    if (log.isDebugEnabled())
    {
        log.debug("Write space string");
    }

    ContentService contentService = getContentService();
    ContentWriter writer = contentService.getWriter(nodeRef, ContentModel.PROP_CONTENT, true);
    writer.setMimetype(MimetypeMap.MIMETYPE_TEXT_PLAIN);
    writer.setEncoding("UTF-8");
    writer.putContent(" ");
}
 

/**
 * Generic method to transform Node content from one mimetype to another.
 * 
 * @param transformer   The Transformer delegate supplying the transformation logic
 * @param mimetype      Mimetype of the destination content
 * @param destination   Destination folder location for the resulting document
 * 
 * @return Node representing the transformed content - or null if the transform failed
 */
private ScriptNode transformNode(Transformer transformer, String mimetype, NodeRef destination)
{
    ScriptNode transformedNode = null;
    
    // get the content reader
    ContentService contentService = this.services.getContentService();
    ContentReader reader = contentService.getReader(this.nodeRef, ContentModel.PROP_CONTENT);
    
    // only perform the transformation if some content is available
    if (reader != null)
    {
        // Copy the content node to a new node
        String copyName = TransformActionExecuter.transformName(this.services.getMimetypeService(), getName(),
                mimetype, true);
        NodeRef copyNodeRef = this.services.getCopyService().copy(this.nodeRef, destination,
                ContentModel.ASSOC_CONTAINS,
                QName.createQName(ContentModel.PROP_CONTENT.getNamespaceURI(), QName.createValidLocalName(copyName)),
                false);
        
        // modify the name of the copy to reflect the new mimetype
        this.nodeService.setProperty(copyNodeRef, ContentModel.PROP_NAME, copyName);
        
        // get the writer and set it up
        ContentWriter writer = contentService.getWriter(copyNodeRef, ContentModel.PROP_CONTENT, true);
        writer.setMimetype(mimetype); // new mimetype
        writer.setEncoding(reader.getEncoding()); // original encoding
        
        // Try and transform the content using the supplied delegate
        transformedNode = transformer.transform(synchronousTransformClient, copyNodeRef, reader, writer);
    }
    
    return transformedNode;
}
 

/**
 * Set the content stream
 * 
 * @param content    Content string to set
 */
public void setContent(String content)
{
    ContentService contentService = services.getContentService();
    ContentWriter writer = contentService.getWriter(nodeRef, this.property, true);
    writer.setMimetype(getMimetype()); // use existing mimetype value
    writer.putContent(content);
    
    // update cached variables after putContent()
    updateContentData(true);
}
 

/**
 * Set the content stream from another content object.
 *  
 * @param content  ScriptContent to set
 */
public void write(Content content)
{
    ContentService contentService = services.getContentService();
    ContentWriter writer = contentService.getWriter(nodeRef, this.property, true);
    writer.setMimetype(content.getMimetype());
    writer.setEncoding(content.getEncoding());
    writer.putContent(content.getInputStream());

    // update cached variables after putContent()
    updateContentData(true);
}
 

/**
 * Set the content stream from another input stream.
 *  
 * @param inputStream InputStream
 */
public void write(InputStream inputStream)
{
    ContentService contentService = services.getContentService();
    ContentWriter writer = contentService.getWriter(nodeRef, this.property, true);
    writer.putContent(inputStream);

    // update cached variables after putContent()
    updateContentData(true);
}
 

@Override
public void setUp() throws Exception
{
    ctx = ApplicationContextHelper.getApplicationContext();
    transactionService = (TransactionService) ctx.getBean("TransactionService");
    nodeService = (NodeService) ctx.getBean("NodeService");
    contentService = (ContentService) ctx.getBean(ServiceRegistry.CONTENT_SERVICE.getLocalName());
    copyService = (CopyService) ctx.getBean("CopyService");
    this.policyComponent = (PolicyComponent) ctx.getBean("policyComponent");
    this.authenticationComponent = (AuthenticationComponent) ctx.getBean("authenticationComponent");
    
    // authenticate
    this.authenticationComponent.setSystemUserAsCurrentUser();
    
    // start the transaction
    txn = getUserTransaction();
    txn.begin();
    
    // create a store and get the root node
    StoreRef storeRef = new StoreRef(StoreRef.PROTOCOL_WORKSPACE, getName());
    if (!nodeService.exists(storeRef))
    {
        storeRef = nodeService.createStore(storeRef.getProtocol(), storeRef.getIdentifier());
    }
    rootNodeRef = nodeService.getRootNode(storeRef);

    ChildAssociationRef assocRef = nodeService.createNode(
            rootNodeRef,
            ContentModel.ASSOC_CHILDREN,
            QName.createQName(TEST_NAMESPACE, GUID.generate()),
            ContentModel.TYPE_CONTENT);
    contentNodeRef = assocRef.getChildRef();

    ContentWriter writer = contentService.getWriter(contentNodeRef, ContentModel.PROP_CONTENT, true);
    writer.setEncoding("UTF-16");
    writer.setLocale(Locale.CHINESE);
    writer.setMimetype("text/plain");
    writer.putContent("sample content");
}
 

private NodeRef createAvatarDirect(NodeRef personRef, File avatarFile)
{
    // create new avatar node
    nodeService.addAspect(personRef, ContentModel.ASPECT_PREFERENCES, null);
    ChildAssociationRef assoc = nodeService.createNode(
            personRef,
            ContentModel.ASSOC_PREFERENCE_IMAGE,
            QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, "origAvatar"),
            ContentModel.TYPE_CONTENT);
    final NodeRef avatarRef = assoc.getChildRef();

    // JSF client compatibility?
    nodeService.createAssociation(personRef, avatarRef, ContentModel.ASSOC_AVATAR);

    // upload the avatar content
    ContentService contentService = applicationContext.getBean("ContentService", ContentService.class);
    ContentWriter writer = contentService.getWriter(avatarRef, ContentModel.PROP_CONTENT, true);
    writer.guessMimetype(avatarFile.getName());
    writer.putContent(avatarFile);

    Rendition avatarR = new Rendition();
    avatarR.setId("avatar");
    Renditions renditions = applicationContext.getBean("Renditions", Renditions.class);
    renditions.createRendition(avatarRef, avatarR, false, null);

    return avatarRef;
}
 

public static void doExample(ServiceRegistry serviceRegistry) throws Exception
    {
        //
        // locate the company home node
        //
        SearchService searchService = serviceRegistry.getSearchService();
        NodeService nodeService = serviceRegistry.getNodeService();
        NamespaceService namespaceService = serviceRegistry.getNamespaceService();
        StoreRef storeRef = new StoreRef(StoreRef.PROTOCOL_WORKSPACE, "SpacesStore");
        NodeRef rootNodeRef = nodeService.getRootNode(storeRef);
        List<NodeRef> results = searchService.selectNodes(rootNodeRef, "/app:company_home", null, namespaceService, false);
        if (results.size() == 0)
        {
            throw new AlfrescoRuntimeException("Can't find /app:company_home");
        }
        NodeRef companyHomeNodeRef = results.get(0);
        results = searchService.selectNodes(companyHomeNodeRef, "./cm:LoadTest", null, namespaceService, false);
        final NodeRef loadTestHome;
        if (results.size() == 0)
        {
            loadTestHome = nodeService.createNode(
                    companyHomeNodeRef,
                    ContentModel.ASSOC_CHILDREN,
                    QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, "LoadTest"),
                    ContentModel.TYPE_FOLDER).getChildRef();
        }
        else
        {
            loadTestHome = results.get(0);
        }

        if ((currentDoc + docsPerTx) > totalNumDocs)
        {
        	docsPerTx = totalNumDocs - currentDoc;
        }
        // Create new Space
        String spaceName = "Bulk Load Space (" + System.currentTimeMillis() + ") from " + currentDoc + " to " + (currentDoc + docsPerTx - 1) + " of " + totalNumDocs;
        Map<QName, Serializable> spaceProps = new HashMap<QName, Serializable>();
    	spaceProps.put(ContentModel.PROP_NAME, spaceName);
        NodeRef  newSpace = nodeService.createNode(loadTestHome, ContentModel.ASSOC_CONTAINS, QName.createQName(NamespaceService.CONTENT_MODEL_PREFIX, spaceName),ContentModel.TYPE_FOLDER,spaceProps).getChildRef();
        

        // create new content node within new Space home
        for (int k = 1;k<=docsPerTx;k++)
        {
    		currentDoc++;
    		System.out.println("About to start document " + currentDoc);
        	// assign name
        	String name = "BulkLoad (" + System.currentTimeMillis() + ") " + currentDoc ;
        	Map<QName, Serializable> contentProps = new HashMap<QName, Serializable>();
        	contentProps.put(ContentModel.PROP_NAME, name);
        	
        	// create content node
        	// NodeService nodeService = serviceRegistry.getNodeService();
        	ChildAssociationRef association = nodeService.createNode(newSpace, 
        			ContentModel.ASSOC_CONTAINS, 
        			QName.createQName(NamespaceService.CONTENT_MODEL_PREFIX, name),
        			ContentModel.TYPE_CONTENT,
        			contentProps);
        	NodeRef content = association.getChildRef();
        
        	// add titled aspect (for Web Client display)
        	Map<QName, Serializable> titledProps = new HashMap<QName, Serializable>();
        	titledProps.put(ContentModel.PROP_TITLE, name);
        	titledProps.put(ContentModel.PROP_DESCRIPTION, name);
        	nodeService.addAspect(content, ContentModel.ASPECT_TITLED, titledProps);
        	
        	//
        	// write some content to new node
        	//

        	ContentService contentService = serviceRegistry.getContentService();
        	ContentWriter writer = contentService.getWriter(content, ContentModel.PROP_CONTENT, true);
        	writer.setMimetype(MimetypeMap.MIMETYPE_TEXT_PLAIN);
        	writer.setEncoding("UTF-8");
        	String text = "This is some text in a doc";
        	writer.putContent(text);
    		System.out.println("About to get child assocs ");        	
        	//Circa
//        	nodeService.getChildAssocs(newSpace);
    	       for (int count=0;count<=10000;count++)
    	        {
    	        	nodeService.getChildAssocs(newSpace);
    	        }
       	
        }
    	//doSearch(searchService);
 		System.out.println("About to end transaction " );

    }
 

/**
 * Tests metadata extraction using an action with an EAGER MetadataExtracter for XML.
 */
public void testLifecycleOfXmlMetadataExtraction() throws Exception
{
    NodeService nodeService = serviceRegistry.getNodeService();
    ContentService contentService = serviceRegistry.getContentService();
    ActionExecuter executer = (ActionExecuter) ctx.getBean("extract-metadata");
    Action action = new ActionImpl(null, GUID.generate(), SetPropertyValueActionExecuter.NAME, null);
    
    StoreRef storeRef = new StoreRef("test", getName());
    NodeRef rootNodeRef = null;
    if (nodeService.exists(storeRef))
    {
        rootNodeRef = nodeService.getRootNode(storeRef);
    }
    else
    {
        nodeService.createStore("test", getName());
        rootNodeRef = nodeService.getRootNode(storeRef);
    }
    
    // Set up some properties
    PropertyMap properties = new PropertyMap();
    properties.put(ContentModel.PROP_TITLE, "My title");
    properties.put(ContentModel.PROP_DESCRIPTION, "My description");
    
    NodeRef contentNodeRef = nodeService.createNode(
            rootNodeRef,
            ContentModel.ASSOC_CHILDREN,
            QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, getName()),
            ContentModel.TYPE_CONTENT,
            properties).getChildRef();
    // Add some content
    ContentReader alfrescoModelReader = getReader(FILE_ALFRESCO_MODEL);
    assertTrue(alfrescoModelReader.exists());
    ContentWriter writer = contentService.getWriter(contentNodeRef, ContentModel.PROP_CONTENT, true);
    writer.setEncoding("UTF-8");
    writer.setMimetype(MimetypeMap.MIMETYPE_XML);
    writer.putContent(alfrescoModelReader);
    
    // Execute the action
    executer.execute(action, contentNodeRef);
    
    // Check the node's properties.  The EAGER overwrite policy should have replaced the required
    // properties.
    String checkTitle = (String) nodeService.getProperty(contentNodeRef, ContentModel.PROP_TITLE);
    String checkDescription = (String) nodeService.getProperty(contentNodeRef, ContentModel.PROP_DESCRIPTION);
    assertEquals("fm:forummodel", checkTitle);
    assertEquals("Forum Model", checkDescription);
}
 

@Override
protected void executeImpl(Action ruleAction, NodeRef actionedUponNodeRef) 
{
	NodeService nodeService = serviceRegistry.getNodeService();
	ContentService contentService = serviceRegistry.getContentService();
	byte[] sigBytes;

	if (nodeService.exists(actionedUponNodeRef) == false)
       {
           return;
       }
   	 
       String location = (String)ruleAction.getParameterValue(PARAM_LOCATION);
       String geolocation = (String)ruleAction.getParameterValue(PARAM_GEOLOCATION);
       String reason = (String)ruleAction.getParameterValue(PARAM_REASON);
       String keyPassword = (String)ruleAction.getParameterValue(PARAM_KEY_PASSWORD);
       
	// get a hash of the document
       InputStream contentStream = contentService.
       		getReader(actionedUponNodeRef, ContentModel.PROP_CONTENT).getContentInputStream();
	
       try
       {
           // get the user's private key
        String user = AuthenticationUtil.getRunAsUser();
    	SignatureProvider signatureProvider = signatureProviderFactory.getSignatureProvider(user);
        KeyStore keystore = signatureProvider.getUserKeyStore(keyPassword);
        PrivateKey key = (PrivateKey)keystore.getKey(alias, keyPassword.toCharArray());
        
        // compute the document hash
        byte[] hash = signatureProvider.computeHash(contentStream);
        
		// sign the hash
		sigBytes = signatureProvider.signHash(hash, keyPassword);
		
		// create a "signature" node and associate it with the signed doc
        NodeRef sig = addSignatureNodeAssociation(actionedUponNodeRef, location, reason, 
        		"none", new java.util.Date(), geolocation, -1, "none");
        
		// save the signature
		ContentWriter writer = contentService.getWriter(sig, ContentModel.PROP_CONTENT, true);
		writer.putContent(new ByteArrayInputStream(sigBytes));
		
		// also save the expected hash in the signature
		nodeService.setProperty(sig, CounterSignSignatureModel.PROP_DOCHASH, new String(hash));
       }
       catch(UnrecoverableKeyException uke)
       {
       	throw new AlfrescoRuntimeException(uke.getMessage());
       } 
       catch (KeyStoreException kse) 
       {
		throw new AlfrescoRuntimeException(kse.getMessage());
	} 
       catch (NoSuchAlgorithmException nsae) 
	{
		throw new AlfrescoRuntimeException(nsae.getMessage());
	} 
       catch (Exception e) 
       {
		throw new AlfrescoRuntimeException(e.getMessage());
	}
}