Java Code Examples for org.apache.chemistry.opencmis.client.api.Document#getContentStream()

/**
 * This is a custom implementation of the doGet method of the
 * {@link HttpServlet}.
 * <p>
 * Here, we expect an "objectId" to be passed as input parameter. This
 * objectId will be fetched to the {@link Session} to fetch the existing
 * document(if present).
 */
protected void doGet(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException {
	final String objectId = request.getParameter("objectId");
	try {
		if (openCmisSession != null) {
			Document doc = (Document) openCmisSession.getObject(objectId);
			ContentStream content = doc.getContentStream();
			String type = content.getMimeType();
			String name = content.getFileName();
			int length = (int) content.getLength();
			InputStream stream = content.getStream();
			response.setContentType(type);
			response.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + name);
			response.setContentLength(length);
			ioCopy(stream, response.getOutputStream());
		} else {
			response.setStatus(501);
		}

	} catch (Exception exception) {
		LOGGER.error(exception.getMessage());
	}

}
 

public void testDownloadEvent() throws InterruptedException
{
    Repository repository = getRepository("admin", "admin");
    Session session = repository.createSession();
    Folder rootFolder = session.getRootFolder();
    String docname = "mydoc-" + GUID.generate() + ".txt";
    Map<String, String> props = new HashMap<String, String>();
    {
        props.put(PropertyIds.OBJECT_TYPE_ID, "D:cmiscustom:document");
        props.put(PropertyIds.NAME, docname);
    }
    
    // content
    byte[] byteContent = "Hello from Download testing class".getBytes();
    InputStream stream = new ByteArrayInputStream(byteContent);
    ContentStream contentStream = new ContentStreamImpl(docname, BigInteger.valueOf(byteContent.length), "text/plain", stream);

    Document doc1 = rootFolder.createDocument(props, contentStream, VersioningState.MAJOR);
    NodeRef doc1NodeRef = cmisIdToNodeRef(doc1.getId());
    
    ContentStream content = doc1.getContentStream();
    assertNotNull(content);
    
    //range request
    content = doc1.getContentStream(BigInteger.valueOf(2),BigInteger.valueOf(4));
    assertNotNull(content);
}
 

public void testEncodingForCreateContentStream()
{
    ServiceRegistry serviceRegistry = (ServiceRegistry) ctx.getBean(ServiceRegistry.SERVICE_REGISTRY);
    FileFolderService ffs = serviceRegistry.getFileFolderService();
    // Authenticate as system
    AuthenticationComponent authenticationComponent = (AuthenticationComponent) ctx
            .getBean(BEAN_NAME_AUTHENTICATION_COMPONENT);
    authenticationComponent.setSystemUserAsCurrentUser();
    try
    {
        /* Create the document using openCmis services */
        Repository repository = getRepository("admin", "admin");
        Session session = repository.createSession();
        Folder rootFolder = session.getRootFolder();
        Document document = createDocument(rootFolder, "test_file_" + GUID.generate() + ".txt", session);

        ContentStream content = document.getContentStream();
        assertNotNull(content);

        content = document.getContentStream(BigInteger.valueOf(2), BigInteger.valueOf(4));
        assertNotNull(content);

        NodeRef doc1NodeRef = cmisIdToNodeRef(document.getId());
        FileInfo fileInfo = ffs.getFileInfo(doc1NodeRef);
        Map<QName, Serializable> properties = fileInfo.getProperties();
        ContentDataWithId contentData = (ContentDataWithId) properties
                .get(QName.createQName("{http://www.alfresco.org/model/content/1.0}content"));
        String encoding = contentData.getEncoding();

        assertEquals("ISO-8859-1", encoding);
    }
    finally
    {
        authenticationComponent.clearCurrentSecurityContext();
    }
}
 

public ContentData getContent(String objectId) throws IOException
{
    CmisObject o = getObject(objectId);
    if(o instanceof Document)
    {
        Document d = (Document)o;
        ContentStream res = d.getContentStream();
        ContentData c = new ContentData(res);
        return c;
    }
    else
    {
        throw new IllegalArgumentException("Object does not exist or is not a document");
    }
}