interchange/document_metadata

package com.pdflib.cookbook.pcos.interchange;

import java.io.IOException;

import com.pdflib.pCOS;

import com.pdflib.pCOSException;

import com.pdflib.cookbook.pcos.pcos_cookbook_example;

/**

 * Retrieve the document's XMP meta data.

 * <p>

 * Required software: pCOS interface 3 (pCOS 2.x, PDFlib 7.x, TET 2.2,

 * PLOP 3.x)<br>

 * Required data: PDF document

 *

 * @version  $Id: document_metadata.java,v 1.2 2007/09/19 09:29:33 stm Exp $

 */

public class document_metadata extends pcos_cookbook_example {

   

    /* This is where the data files are. Adjust as necessary. */

    private final static String SEARCH_PATH = "../input";

    private final static String KEY = "/Root/Metadata";

    public void example_code(pCOS p, String filename) throws pCOSException, Exception {

        /* Open the PDF document */

        int doc = p.open_document(filename, "");

        if (doc == -1)

            throw new Exception("Error: " + p.get_errmsg());

       

        System.out.println("File name: " + p.get_string(doc, "filename"));

       

        String objtype = p.get_string(doc, "type:" + KEY);

       

        if (objtype.equals("stream")) {

            byte[] contents = p.get_stream(doc, "", KEY);

            if (contents != null && contents.length > 0) {

                try {

                    System.out.write(contents);

                }

                catch (IOException e) {

                    System.err.println("IOException occurred:");

                    System.err.println(e.getMessage());

                }

            }

            else {

                System.out.println("Not found");

            }

        }

        else {

            System.out.println("Not found");

        }

       

        p.close_document(doc);

    }

   

    public document_metadata(String[] argv, String readable_name,

        String search_path, String full_rcs_file_name, String revision) {

        super(argv, readable_name, search_path, full_rcs_file_name, revision);

    }

    public static void main(String argv[]) {

        document_metadata example = new document_metadata(argv,

            "Document XMP metadata", SEARCH_PATH,

            "$RCSfile: document_metadata.java,v $", "$Revision: 1.2 $");

        example.execute();

    }

}