Add Text/Table with values to pdf !!!

[irenailievska]

I need to add small table filled with properties from my custom content model in the upper right corner of the pdf document. I am supposed to add this to an existing pdf document. This should be executed when I activate the action defined in share-config-custom.xml (DocLibActions). I am a beginner in Alfresco and don`t know how to do this. Read something about iText, but I can't find how to open the pdf document. I have been looking at the tutorial from Jeff Potts about Custom Actions and so far I have added the action to the menu (you can see the action when you click more), have written a bean to register my java executer in service-context.xml and have created the Java class (It doesn't do anything at the moment). I am passing the nodeRef of the document, but how can I find it and open it with iText and add the table in the corner ? Since I have the nodeRef how can I get to the file itself? Is it possible to update the number of the version when I save the changes of the document? It is a little bit urgent so I would appreciate every help I get.

Thanks in advance,
Irena

[s_palyukh]

Hello,

I believe the following post will be useful for you: http://www.marversolutions.com/wordpress/2012/04/15/adding-document-library-actions-in-alfresco-4-0/

[irenailievska]

I have seen this post. It's very helpful and I was using it to write the code I need in order to show the action and call a java class as a executor. But I have no Idea how to get the pdf from nodeRef or how to insert a table in a specific place. If there is a way by using JavaScript I would be glad to try it, although I haven't worked with javaScript very much and would be needing some guidance.
Thanks in advance,
Irena

[s_palyukh]

No, you can't use JS API to add table into PDF file. Use IText to create pdf table (http://itextpdf.com/examples/iia.php?id=75).

If you want to write into the file by NodeRef then look at the org.alfresco.service.cmr.repository.ContentService.

            ContentWriter writer = contentService.getWriter(nodeRef, ContentModel.PROP_CONTENT, true);
            writer.putContent(inputStream);

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[irenailievska]

Ok thanks a lot for the directions !!!

I have two more questions (sorry if they sound stupid - I don't have experience working with alfresco or java for that matter):

1. What is inputStream - because I need to insert table in the pdf document. Is it String or something else ?
2. How do I manipulate with writer ? Do I use it to create the table and to set the position for my table?
I am confused by this because in most of the examples and in the one you gave me, they create new document and I don`t know how to retrieve the existing one. They use :

 Document document = new Document();
        // step 2
        PdfWriter.getInstance(document, new FileOutputStream(filename));
        // step 3
        document.open();
        // step 4
        document.add(createFirstTable());
        // step 5
        document.close();

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and as I have noticed they have

   public static final String RESULT = "results/part1/chapter04/first_table.pdf";
‍‍‍

where they save the document. I need the document to stay in the same place.

Sorry but I am beginner and don`t really understand some of the things.

Thanks,
Irena

[s_palyukh]

1) About inputStream -> http://tutorials.jenkov.com/java-io/inputstream.html
2) You need to get OutputStream from Writer, something like that:

 Document document = new Document();
        // step 1 
        ContentWriter writer = contentService.getWriter(nodeRef, ContentModel.PROP_CONTENT, true);
        // step 2
        PdfWriter.getInstance(document, writer.getContentOutputStream());
        // step 3
        document.open();
        // step 4
        document.add(createFirstTable());
        // step 5
        document.close();
‍‍‍‍‍‍‍‍‍‍‍‍‍

[irenailievska]

If I use document.close() do I still need to use writter.putContent(inputStream) ?
Is this what I need from InputStream ?

InputStream inputStream = new ByteArrayInputStream(content.getBytes(encoding));

‍‍‍‍‍

[s_palyukh]

1) If I use document.close() do I still need to use writter.putContent(inputStream) ? - No, you don't
2) Is this what I need from InputStream ? - If you use PdfWriter to write content then you don't need inputstream

[irenailievska]

I tried doing it like you suggested but there are errors and I can't start the explorer at all.
Here Is my code:

   
package my.action.executer;

import java.util.List;

import my.model.myModel;

import org.alfresco.model.ContentModel;
import org.alfresco.repo.action.ParameterDefinitionImpl;
import org.alfresco.repo.action.executer.ActionExecuterAbstractBase;
import org.alfresco.service.cmr.action.Action;
import org.alfresco.service.cmr.action.ParameterDefinition;
import org.alfresco.service.cmr.dictionary.DataTypeDefinition;
import org.alfresco.service.cmr.repository.ContentService;
import org.alfresco.service.cmr.repository.ContentWriter;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.namespace.QName;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.util.Assert;

import com.itextpdf.text.Document;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;

public class InsertArchiveStamp extends ActionExecuterAbstractBase
   implements InitializingBean {

    public static final String NAME = "watermark";
    public static final String PARAM_TEXT = "watermark-text";

    private ContentService contentService;
    protected NodeService nodeService;
    
    public void setContentService(ContentService contentService) {
   this.contentService = contentService;
    }

    public void afterPropertiesSet() throws Exception {
   Assert.notNull(contentService);
    }

    @Override
    protected void executeImpl(Action action, NodeRef actionedUponNodeRef) {
       
         
       Document document = new Document();
       // step 1 
       try{ 
       ContentWriter writer = contentService.getWriter(actionedUponNodeRef, ContentModel.PROP_CONTENT, true);
       
      // PdfContentByte canvas = ((PdfWriter) writer).getDirectContent();
       // step 2
       PdfWriter.getInstance(document, writer.getContentOutputStream());
       // step 3
       document.open();
       
       
       //////////////////////////////////////////////////////
      
    // a table with three columns
        PdfPTable table = new PdfPTable(4);
        // the cell object
        PdfPCell cell;
        
        // we add a cell with colspan 3
        cell = new PdfPCell(new Phrase("Примено:"));
        cell.setColspan(4);
        table.addCell(cell);
        
        cell = new PdfPCell(new Phrase("Орг.един."));
        table.addCell(cell);
        // we add the four remaining cells with addCell()
        table.addCell("Број:");
        table.addCell("Прилог:");
        table.addCell("Вредност:");
        
        cell = new PdfPCell(new Phrase(""));
        cell.setRowspan(2);
        table.addCell(cell);
        
        cell = new PdfPCell(new Phrase(""));
        cell.setRowspan(2);
        table.addCell(cell);
        
        cell = new PdfPCell(new Phrase(""));
        cell.setRowspan(2);
        table.addCell(cell);
        
        cell = new PdfPCell(new Phrase(""));
        cell.setRowspan(2);
        table.addCell(cell);
        
       
       //////////////////////////////////////////////
       
       // step 4
       document.add(table);
       
       // step 5
       document.close();
     }
     catch(Exception e){
        
     }
       
    }


    /* I THOUGHT TO PUT THE CREATING OF THE TABLE AS IN THE EXAMPLE - IN FUNCTION 
    public static PdfPTable createTable() {
       // a table with three columns
        PdfPTable table = new PdfPTable(4);
        // the cell object
        PdfPCell cell;
        

        ////////////////////////////////////////////////////////////////////////////////////////////

              THIS CODE IS FOR GETTING THE VALUES FROM MY CONTENT MODEL
            
        //QName PROP_QNAME_NAME = QName.createQName(myModel.NAMESPACE_ALFRESCO_MODEL, "name");   
   //String fileName = (String) nodeService.getProperty(actionedUponNodeRef, PROP_QNAME_NAME);



        ///////////////////////////////////////////////////////////////////////////////////////////
        // we add a cell with colspan 3
        cell = new PdfPCell(new Phrase("Примено:"));
        cell.setColspan(4);
        table.addCell(cell);
        
        cell = new PdfPCell(new Phrase("Орг.един."));
        table.addCell(cell);
        // we add the four remaining cells with addCell()
        table.addCell("Број:");
        table.addCell("Прилог:");
        table.addCell("Вредност:");
        
        cell = new PdfPCell(new Phrase(""));
        cell.setRowspan(2);
        table.addCell(cell);
        
        cell = new PdfPCell(new Phrase(""));
        cell.setRowspan(2);
        table.addCell(cell);
        
        cell = new PdfPCell(new Phrase(""));
        cell.setRowspan(2);
        table.addCell(cell);
        
        cell = new PdfPCell(new Phrase(""));
        cell.setRowspan(2);
        table.addCell(cell);
        
        //table.setTotalWidth(104);
        //table.completeRow();
        // write the table to an absolute position
       // table.writeSelectedRows(0, -1, 169, table.getTotalHeight() + 20, canvas);
        return table;
    }
*/
    @Override
    protected void addParameterDefinitions(List<ParameterDefinition> paramList) {
   paramList
      .add(new ParameterDefinitionImpl(PARAM_TEXT,
         DataTypeDefinition.TEXT, 
         false,
         getParamDisplayLabel(PARAM_TEXT)));
         
       return;
    }
    
    public void setNodeService(NodeService nodeService) {
      this.nodeService = nodeService;
   }
}

   
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The action is called on click on the action defined in share-config-custom.xml and there is a bean defined in service-context.xml.


I need to create the table and add values from my content model. I have the piece of code marked in my executor class. I have no idea what could be wrong.
There is a file attached I copied from the console.

Thanks,
Irena

[irenailievska]

There says that there is no itextpdf.text.Element. I don't know how to resolve this