/* * $Id: PdfLister.java,v 1.1 2002/11/19 08:33:38 blowagie Exp $ * $Name:  $ * * Copyright 1999, 2000, 2001, 2002 Bruno Lowagie * * The contents of this file are subject to the Mozilla Public License Version 1.1 * (the "License"); you may not use this file except in compliance with the License. * You may obtain a copy of the License at http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the License. * * The Original Code is 'iText, a free JAVA-PDF library'. * * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie. * All Rights Reserved. * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved. * * This class by Mark Thompson. Copyright (C) 2002 Mark Thompson * * Contributor(s): all the names of the contributors are added in the source code * where applicable. * * Alternatively, the contents of this file may be used under the terms of the * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the * provisions of LGPL are applicable instead of those above.  If you wish to * allow use of your version of this file only under the terms of the LGPL * License and not to allow others to use your version of this file under * the MPL, indicate your decision by deleting the provisions above and * replace them with the notice and other provisions required by the LGPL. * If you do not delete the provisions above, a recipient may use your version * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE. * * This library is free software; you can redistribute it and/or modify it * under the terms of the MPL as stated above or under the terms of the GNU * Library General Public License as published by the Free Software Foundation; * either version 2 of the License, or any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more * details. * * If you didn't download this code from the following link, you should check if * you aren't using an obsolete version: * http://www.lowagie.com/iText/ */ package com.lowagie.text.pdf;import java.io.*;import java.util.Iterator;/** * List a PDF file in human-readable form * @author Mark Thompson */public class PdfLister {    PrintStream out;    public PdfLister(PrintStream out) {        this.out = out;    }    public void listAnyObject(PdfObject object)    {        switch (object.type()) {        case PdfObject.ARRAY:            listArray((PdfArray)object);            break;        case PdfObject.DICTIONARY:            listDict((PdfDictionary) object);            break;        case PdfObject.STRING:            out.println("(" + object.toString() + ")");            break;        default:            out.println(object.toString());            break;        }    }    public void listDict(PdfDictionary dictionary)    {        out.println("<<");        PdfName key;        PdfObject value;        for (Iterator i = dictionary.getKeys().iterator(); i.hasNext(); ) {            key = (PdfName) i.next();            value = (PdfObject) dictionary.get(key);            out.print(key.toString());            out.print(' ');            listAnyObject(value);        }        out.println(">>");    }    public void listArray(PdfArray array)    {        out.println('[');        for (Iterator i = array.getArrayList().iterator(); i.hasNext(); ) {            PdfObject item = (PdfObject)i.next();            listAnyObject(item);        }        out.println(']');    }    public void listStream(PRStream stream, PdfReaderInstance reader)    {        try {            listDict(stream);            out.println("startstream");            byte[] b = reader.getStreamBytes(stream);//                  byte buf[] = new byte[Math.min(stream.getLength(), 4096)];//                  int r = 0;//                  stream.openStream(reader);//                  for (;;) {//                      r = stream.readStream(buf, 0, buf.length);//                      if (r == 0) break;//                      out.write(buf, 0, r);//                  }//                  stream.closeStream();            int len = b.length - 1;            for (int k = 0; k < len; ++k) {                if (b[k] == '\r' && b[k + 1] != '\n')                    b[k] = '\n';            }            out.println(new String(b));            out.println("endstream");        } catch (IOException e) {            System.err.println("I/O exception: " + e);//          } catch (java.util.zip.DataFormatException e) {//              System.err.println("Data Format Exception: " + e);        }    }    public void listPage(PdfImportedPage iPage)    {        int pageNum = iPage.getPageNumber();        PdfReaderInstance readerInst = iPage.getPdfReaderInstance();        PdfReader reader = readerInst.getReader();        PdfDictionary page = reader.getPageN(pageNum);        listDict(page);        PdfObject obj = reader.getPdfObject(page.get(PdfName.CONTENTS));        switch (obj.type) {        case PdfObject.STREAM:            listStream((PRStream)obj, readerInst);            break;        case PdfObject.ARRAY:            for (Iterator i = ((PdfArray)obj).getArrayList().iterator(); i.hasNext();) {                PdfObject o = reader.getPdfObject((PdfObject)i.next());                listStream((PRStream)o, readerInst);                out.println("-----------");            }            break;        }    }}