Java code to Download File from site document library.

[shibu]

Can any body give the java code to download files from a site document library?

[mitpatoliya]

you can do through the download url associated with each content.
Just call that url in the java and in response you will get that file.

[shibu]

How can I get the download URL?

I tried with the following code :
<code>
public static String webService(String dir, String fileName)
         throws Exception {
      String downloadURL = null;

      try {
         // Let us say you know the directory and filename For Eg:

         // String dir = "app:company_home/sites/my-site/documentLibrary/";
         // String fileName = "Stake";
         System.out.println("dir ::" + dir);
         System.out.println("fileName ::" + fileName);

         // Start the session
         AuthenticationUtils.startSession("admin", "admin");
         String ticket = AuthenticationUtils.getCurrentTicket();

         // Create a reference to the parent where we want to create content
         Store storeRef = new Store(Constants.WORKSPACE_STORE, "SpacesStore");

         // Reference reference = new Reference(storeRef, null,
         // "/app:company_home/cmsmileyCMCOE/cm:COE1/*[@cm:name=\"" +
         // "eProfilerPPT" + "\"]");
         // Create a new Reference to the node you want (variable path here).
         String path = dir + "*[@cm:name=\"" + fileName + "\"]";
         Reference reference = new Reference(storeRef, null, path);
         ContentServiceSoapBindingStub contentService = WebServiceFactory
               .getContentService();

         // Read the content from the respository
         Content[] readResult = contentService.read(new Predicate(
               new Reference[] { reference }, storeRef, null),
               Constants.PROP_CONTENT);
         Content contentRef = readResult[0];

         // Get the ticket URL as above and the downloadURL here points to
         // the url where the content is present.
         System.out.println("contentRef.getUrl() : " + contentRef.getUrl());
         String ticketURL = "?ticket=" + ticket;
         downloadURL = contentRef.getUrl() + ticketURL;
         System.out.println("downloadURL in webService(): " + downloadURL);
      } catch (Throwable e) {
         System.out.println(e.toString());
      } finally {
         // End the session
         // AuthenticationUtils.endSession();
      }
      return downloadURL;
   }
<code>



This is returning null value when calling with a site document library;
String url = webService("app:company_home/sites/my-site/documentLibrary/", "Alfresco Doccument.odt");
While printing path , it displays : app:company_home/sites/my-site/documentLibrary/*[@cm:name="Alfresco Doccument.odt"] .
And exception is throwing when "Content[] readResult" is defined.

But working fine if I called like;
String url = webService("/app:company_home/cm:sample/", "images.jpeg");

So the problem is happening when site document library path is passing.
How to fix it?
Please help me to fix it.

[shibu]

I got the answer.
Path of the site document library will be "app:company_home/st:sites/cm:my-site/cm:documentLibrary".

[mrball]

Hi,
I found the content url and it works if I put it in an htlm anchor:

<a href="http://localhost:8080/alfresco/d/a/workspace/SpacesStore/70847d54-dd4d-4660-a557-f788a8f2b94e/test.d...">Download file </a>
‍‍‍

I would like to create a "bulk download" in JAVA code to download a Collection of a content from alfresco.
Is it possible?

I used <strong>org.apache.http.client.HttpClient httpClient = new DefaultHttpClient();</strong>

String defaultURL= "http://localhost:8080/alfresco/d/a/workspace/SpacesStore/70847d54-dd4d-4660-a557-f788a8f2b94e/test.d...";
HttpGet httpget = new HttpGet(defaultURL);
org.apache.http.client.HttpClient httpClient = new DefaultHttpClient();
HttpResponse response = httpClient.execute(httpget);
HttpEntity entity = response.getEntity();
if (entity != null) {
long len = entity.getContentLength();
InputStream inputStream = entity.getContent();
…….

// Something here to get the input stream 
// and the file object to put into the zip file
‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Finally I create a Zip file where I have all files.
Now I have this zip file with all files, but all file have zero bytes size.

To help you, I tell you that the value of "len" is "-1"

[shailu13]

Thank you @shinu your post helped me

[poonam_sangle]

above code is not working…I got Error starting session, I have added line
WebServiceFactory.setEndpointAddress("http://192.168.1.90:8484/alfresco/api"); still I have same error

[divyank]

Iam getting the same error session is not getting started even after including WebServiceFactory.setEndpointAddress("http://192.168.1.90:8484/alfresco/api"); Iam using the same code abpve to download a file


public String webService(String dir, String fileName)   throws Exception

{

         String downloadURL = null;
         try {


            System.out.println("dir ::" + dir);

            System.out.println("fileName ::" + fileName);

   

            // Start the session
         //   WebServiceFactory.setEndpointAddress("http://127.0.0.1:8080/alfresco/api");
            AuthenticationUtils.startSession("admin", "Password123");

            String ticket = AuthenticationUtils.getTicket();

   

            // Create a reference to the parent where we want to create content

            Store storeRef = new Store(Constants.WORKSPACE_STORE, "SpacesStore");

   

            // Reference reference = new Reference(storeRef, null,

            // "/app:company_home/cmsmileyCMCOE/cm:COE1/*[@cm:name=\"" +

            // "eProfilerPPT" + "\"]");

            // Create a new Reference to the node you want (variable path here).

            String path = dir + "*[@cm:name=\"" + fileName + "\"]";

            Reference reference = new Reference(storeRef, null, path);

            ContentServiceSoapBindingStub contentService = WebServiceFactory

                  .getContentService();

   

            // Read the content from the respository

            Content[] readResult = contentService.read(new Predicate(

                  new Reference[] { reference }, storeRef, null),

                  Constants.PROP_CONTENT);

            Content contentRef = readResult[0];

   

            // Get the ticket URL as above and the downloadURL here points to

            // the url where the content is present.

            System.out.println("contentRef.getUrl() : " + contentRef.getUrl());

            String ticketURL = "?ticket=" + ticket;

            downloadURL = contentRef.getUrl() + ticketURL;

            System.out.println("downloadURL in webService(): " + downloadURL);

         } catch (Throwable e) {

            System.out.println(e.toString());

         } finally {

            // End the session

            // AuthenticationUtils.endSession();

         }

         return downloadURL;

      }

What can be my directory if i have a file in a site created by me called "mysite" document library



Iam using Alfresco community edition 5.0.d