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Error downloading word, excel files using webservices

sharon

Hi,

I have been using Alfresco Labs 3 Full Setup for Document Management integrated with my application.
Any file of Microsoft word or excel format gets uploaded into Alfresco repository.
When i try to open it using Alfresco Web client, It opens properly.

However, when i try to open the uploaded file through my application, it gives me "unknown file format" error.
I have debugged my application and realised that the content downloaded from alfresco is corrupted.

The byte array obtained contains corrupted data due to which i get the above error.
The code for downloading is given below:

Store storeRef = new Store(Constants.WORKSPACE_STORE, "SpacesStore");
Content[] contentResultArr = WebServiceFactory.getContentService().read(
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;new Predicate(new Reference[] { new Reference(storeRef, nodeId, null) }, storeRef, null),
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constants.PROP_CONTENT);

Content content = contentResultArr[0];
InputStream outFileContent = ContentUtils.getContentAsInputStream(content);
byte [] contentByteArr = ContentUtils.convertToByteArray(outFileContent);
outFileContent.close();
‍‍‍‍‍‍‍‍‍‍‍

Kindly help me out with this issue.

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Comments

norgan

Hi,
what do you get instead ? I used to work with a Firefox Plugin "PDF Download", but could not download PDFs with this plugin, which were coming from Alfresco. The authentification information got lost on the way and I always got a document with the correct name & extension, but with the "HTML Login.jsp" sourcecode as real content.

My only solution was to not use "PDF Download" so far.

Norgan

sharon

The problem arises when i try to download my content using the convertToByteArray() metohd of ContentUtils:

Content content = contentResultArr[0];
InputStream inputSteam= ContentUtils.getContentAsInputStream(content);
byte [] contentByteArr = ContentUtils.convertToByteArray(inputSteam);
outFileContent.close();
‍‍‍‍‍‍

The InputStream that i receive is perfect (with say length=18k bytes) , but when i try to convert the input stream to byte array, the total byte size reduces to 16K. This happens with all the file formats(word/excel/pdf) with size greater than 16k bytes since the inputSteam.isAvailable() function used internally in convertToByteArray() return only 16k bytes at a time.

I got this rectified by using the getContentAsString() line :

Content content = contentResultArr[0];
String contentString= ContentUtils.getContentAsString(content);
byte [] contentByteArr = contentString.getBytes();
outFileContent.close();
‍‍‍‍‍‍

This solves the byte size prob.

However, now when trying to view the file, it gives memory error.

Temporarily, as a solution, I write the content onto the local system using
ContentUtils.copyContentToFile(content, file);
and read the content from the file using I/O stream.

If any one can help me read out the content directly from alfresco repository, through any other way besides ContentUtils let me know.

Sharon.