topic Re: Read document content (doc, docx, odt) in Alfresco Archive

Read document content (doc, docx, odt)

revenge — Wed, 28 Oct 2009 16:15:32 GMT

Hi all,In my first application I've read document content using Alfresco Web Service and apache POI 3.5 and PdfBox libs.Now I'm developing an action for alfresco 3.2, so I cannot use POI 3.5 because alfresco already contains the 3.1 version.For pdf documents there's no problem….because I can use the

Re: Read document content (doc, docx, odt)

ivo_costa — Fri, 30 Oct 2009 10:15:28 GMT

Hi Revenge…

check the openoffice API, Alfresco already includes it and you can use it to read a lot of document formats

Regards

Ivo Costa

Re: Read document content (doc, docx, odt)

revenge — Fri, 30 Oct 2009 14:03:28 GMT

For word (.doc) documents I've found the Word97TextExtractor….

Word97TextExtractor extractor = new Word97TextExtractor(this._stream);
strContent = extractor.getText();‍‍

while looking for other classes I've found the UnoContentTransformer.java that transforms the openoffice supported documents directly into the repository….

but it uses net.sf.joott.uno package that I don't find in the SDK

Do you have any suggestion to solve this problem? Or if you know which classes could I use?

Thanks,
Revenge

Re: Read document content (doc, docx, odt)

zaizi — Fri, 30 Oct 2009 15:11:54 GMT

You can just use Alfresco's content transformation functionality to get a text version of all supported content for you.


               ContentReader reader = contentService.getReader(nodeRef, ContentModel.PROP_CONTENT);
                if (reader != null && reader.exists())
                {
                        // get the transformer
                        ContentTransformer transformer = contentService.getTransformer(reader.getMimetype(), MimetypeMap.MIMETYPE_TEXT_PLAIN);
                        // is this transformer good enough?
                        if (transformer == null)
                        {
                            // We have a transformer that is fast enough
                            ContentWriter writer = contentService.getTempWriter();
                            writer.setMimetype(MimetypeMap.MIMETYPE_TEXT_PLAIN);

                            try
                            {
                                transformer.transform(reader, writer);
                                // point the reader to the new-written content
                                reader = writer.getReader();
                                // Check that the reader is a view onto something concrete
                                if (!reader.exists())
                                {
                                    throw new ContentIOException("The transformation did not write any content, yet: \n"
                                            + "   transformer:     " + transformer + "\n" + "   temp writer:     " + writer);
                                }
                            }
                            catch (ContentIOException e)
                            {

 
                            }
                        }
                    }
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Re: Read document content (doc, docx, odt)

revenge — Mon, 02 Nov 2009 11:19:40 GMT

I changed only this row

if (transformer == null)‍

if (transformer != null)‍

and then

reader = writer.getReader();
// Check that the reader is a view onto something concrete
if (!reader.exists()) {
   throw new ContentIOException(
   "The transformation did not write any content, yet: \n"
   + "   transformer:     " + transformer
   + "\n" + "   temp writer:     "
   + writer);
} else {
   content = reader.getContentString();
}‍‍‍‍‍‍‍‍‍‍‍

The first time I excluded this transformer because I tought it worked only in repository…. (it works in this way…but on temporary files… so I can get the reader based on the temp file)… but when you posted the code…. I've understood how it works…

Thanks very much!

Bye,
Revenge

Re: Read document content (doc, docx, odt)

ivo_costa — Thu, 05 Nov 2009 09:36:41 GMT

A side note…

that "net.sf.joott.uno" package you didn't find is part of the openoffice API

just in case you need something more complicated

Re: Read document content (doc, docx, odt)

mrogers — Thu, 05 Nov 2009 10:00:09 GMT

Another side note. The POI library is now version 3.5.

Re: Read document content (doc, docx, odt)

magno — Thu, 15 Jul 2010 12:43:08 GMT

Hello,
I'm doing (or trying to do) something like that, and I've some questions abouta that code…
I want to transform an html code, which I obtain from a jsp to word format, because I'm trying to create a document in alfresco through the web services api…I need to do the transformation before creating the word document, but I'm blocked with that.
I create a node like that:

 Store storeRef = new Store(Constants.WORKSPACE_STORE, "SpacesStore");  
             ParentReference companyHomeParent = new ParentReference(storeRef, null, "/app:company_home", Constants.ASSOC_CONTAINS, null);  
            companyHomeParent.setChildName("cm:" + name); 
                 String id=companyHomeParent.getUuid();
             Reference nodeRef = new Reference(storeRef, id, null);‍‍‍‍‍

and then I tried to probe the code it's before, but I don't understand what is contentService's value…
If someone can help me, i'll very thankful!

                   ContentReader reader = contentService.getReader(nodeRef, ContentModel.PROP_CONTENT);
                    if (reader != null && reader.exists())
                    {
                            // get the transformer
                            ContentTransformer transformer = contentService.getTransformer(reader.getMimetype(), MimetypeMap.MIMETYPE_TEXT_PLAIN);
                            // is this transformer good enough?
                            if (transformer == null)
                            {
                                // We have a transformer that is fast enough
                                ContentWriter writer = contentService.getTempWriter();
                                writer.setMimetype(MimetypeMap.MIMETYPE_TEXT_PLAIN);

                                try
                                {
                                    transformer.transform(reader, writer);
                                    // point the reader to the new-written content
                                    reader = writer.getReader();
                                    // Check that the reader is a view onto something concrete
                                    if (!reader.exists())
                                    {
                                        throw new ContentIOException("The transformation did not write any content, yet: \n"
                                                + "   transformer:     " + transformer + "\n" + "   temp writer:     " + writer);
                                    }
                                }
                                catch (ContentIOException e)
                                {


                                }
                            }
                        }
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Re: Read document content (doc, docx, odt)

magno — Thu, 15 Jul 2010 12:44:07 GMT

oh, something more…I don't know if to use that classes, I need some special library…for example the class ContentReader

Re: Read document content (doc, docx, odt)

madhuri — Mon, 25 Aug 2014 09:36:14 GMT

I am newly learning alfresco and trying to read content from a text file and I am trying to use ContentReader for doing same but it is giving me error asking to create an interface for that. Can any one tell me how to use ContentReader.

Re: Read document content (doc, docx, odt)

madhuri — Mon, 25 Aug 2014 09:38:50 GMT

Can anyone tell me how to make use of ContentReader. Do I need to include any library?