From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001
From: tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Fri, 1 Dec 2006 12:20:24 +0000
Subject: Initial import of release 2.2.

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../org/pdfbox/examples/persistence/AppendDoc.java | 357 +++++++++++++++++++++
 1 file changed, 357 insertions(+)
 create mode 100644 src/main/java/org/pdfbox/examples/persistence/AppendDoc.java

(limited to 'src/main/java/org/pdfbox/examples/persistence/AppendDoc.java')

diff --git a/src/main/java/org/pdfbox/examples/persistence/AppendDoc.java b/src/main/java/org/pdfbox/examples/persistence/AppendDoc.java
new file mode 100644
index 0000000..68e254c
--- /dev/null
+++ b/src/main/java/org/pdfbox/examples/persistence/AppendDoc.java
@@ -0,0 +1,357 @@
+/**
+ * Copyright (c) 2003-2004, www.pdfbox.org
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of pdfbox; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://www.pdfbox.org
+ *
+ */
+package org.pdfbox.examples.persistence;
+
+import java.io.IOException;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import org.pdfbox.cos.COSBase;
+import org.pdfbox.cos.COSDictionary;
+import org.pdfbox.cos.COSName;
+import org.pdfbox.cos.COSArray;
+import org.pdfbox.cos.COSNumber;
+import org.pdfbox.cos.COSInteger;
+import org.pdfbox.cos.COSObject;
+import org.pdfbox.cos.COSStream;
+
+import org.pdfbox.pdmodel.PDDocument;
+import org.pdfbox.pdmodel.PDDocumentInformation;
+import org.pdfbox.pdmodel.PDPage;
+
+import org.pdfbox.pdmodel.common.PDStream;
+
+import org.pdfbox.exceptions.COSVisitorException;
+
+/**
+ * This example concatenates two documents and writes the result.
+ *
+ * @author Michael Traut
+ * @version $Revision: 1.17 $
+ */
+public class AppendDoc
+{
+    /**
+     * Constructor.
+     */
+    public AppendDoc()
+    {
+        super();
+    }
+    /**
+     * append all pages from source to destination.
+     *
+     * todo: this method will go to the pdfmodel package one day
+     *
+     * @param destination the document to receive the pages
+     * @param source the document originating the new pages
+     *
+     * @throws IOException If there is an error accessing data from either document.
+     */
+    public void appendDocument(PDDocument destination, PDDocument source) throws IOException
+    {
+        if( destination.isEncrypted() )
+        {
+            throw new IOException( "Error: destination PDF is encrypted, can't append encrypted PDF documents." );
+        }
+        if( source.isEncrypted() )
+        {
+            throw new IOException( "Error: destination PDF is encrypted, can't append encrypted PDF documents." );
+        }
+        PDDocumentInformation destInfo = destination.getDocumentInformation();
+        PDDocumentInformation srcInfo = source.getDocumentInformation();
+        destInfo.getDictionary().mergeInto( srcInfo.getDictionary() );
+        
+        COSDictionary destTrailer = destination.getDocument().getTrailer();
+        COSDictionary destRoot = (COSDictionary)destTrailer.getDictionaryObject( COSName.ROOT );
+
+        COSDictionary srcTrailer = source.getDocument().getTrailer();
+        COSDictionary srcRoot = (COSDictionary)srcTrailer.getDictionaryObject( COSName.ROOT );
+
+        COSName openAction = COSName.getPDFName( "OpenAction" );
+        if( destRoot.getDictionaryObject( openAction ) == null )
+        {
+            COSBase open = srcRoot.getDictionaryObject( openAction );
+            if( open != null )
+            {
+                destRoot.setItem( openAction, copyStreamsIntoDocument( destination, open ) );
+            }
+        }
+
+        COSName acroForm = COSName.getPDFName( "AcroForm" );
+        COSDictionary destAcroForm = (COSDictionary)destRoot.getDictionaryObject( acroForm );
+        COSDictionary srcAcroForm = (COSDictionary)srcRoot.getDictionaryObject( acroForm );
+        if( srcAcroForm != null )
+        {
+            if( destAcroForm == null )
+            {
+                destRoot.setItem( acroForm, copyStreamsIntoDocument( destination, srcAcroForm ) );
+            }
+            else
+            {
+                //****************need to do proper merge***************
+                //destAcroForm.addAll( (COSArray)copyStreamsIntoDocument( destination, srcAcroForm ) );
+            }            
+        }
+
+        COSName threads = COSName.getPDFName( "Threads" );
+        COSArray destThreads = (COSArray)destRoot.getDictionaryObject( threads );
+        COSArray srcThreads = (COSArray)srcRoot.getDictionaryObject( threads );
+        if( srcThreads != null )
+        {
+            if( destThreads == null )
+            {
+                destRoot.setItem( threads, copyStreamsIntoDocument( destination, srcThreads ) );
+            }
+            else
+            {
+                destThreads.addAll( (COSArray)copyStreamsIntoDocument( destination, srcThreads ) );
+            }
+        }
+
+        COSName names = COSName.getPDFName( "Names" );
+        COSDictionary destNames = (COSDictionary)destRoot.getDictionaryObject( names );
+        COSDictionary srcNames = (COSDictionary)srcRoot.getDictionaryObject( names );
+        if( srcNames != null )
+        {
+            if( destNames == null )
+            {
+                destRoot.setItem( names, copyStreamsIntoDocument( destination, srcNames ) );
+            }
+            else
+            {
+                //warning, potential for collision here!!
+                destNames.mergeInto( (COSDictionary)copyStreamsIntoDocument( destination, srcNames ) );
+            }
+        }
+        
+        COSName outlines = COSName.getPDFName( "Outlines" );
+        COSDictionary destOutlines = (COSDictionary)destRoot.getDictionaryObject( outlines );
+        COSDictionary srcOutlines = (COSDictionary)srcRoot.getDictionaryObject( outlines );
+        if( srcOutlines != null && destOutlines == null )
+        {
+            destRoot.setItem( outlines, copyStreamsIntoDocument( destination, srcOutlines ) );
+        }
+        
+        COSName pagemode = COSName.getPDFName( "PageMode" );
+        COSBase srcPageMode = srcRoot.getDictionaryObject( pagemode );
+        if( srcOutlines != null && destOutlines == null )
+        {
+            destRoot.setItem( pagemode, copyStreamsIntoDocument( destination, srcPageMode ) );
+        }
+
+        COSName pageLabels = COSName.getPDFName( "PageLabels" );
+        COSDictionary destLabels = (COSDictionary)destRoot.getDictionaryObject( pageLabels );
+        COSDictionary srcLabels = (COSDictionary)srcRoot.getDictionaryObject( pageLabels );
+        if( srcLabels != null )
+        {
+            int destPageCount = destination.getNumberOfPages();
+            COSArray destNums = null;
+            if( destLabels == null )
+            {
+                destLabels = new COSDictionary();
+                destNums = new COSArray();
+                destLabels.setItem( COSName.getPDFName( "Nums" ), destNums );
+                destRoot.setItem( pageLabels, destLabels );
+            }
+            else
+            {
+                destNums = (COSArray)destLabels.getDictionaryObject( COSName.getPDFName( "Nums" ) );
+            }
+            COSArray srcNums = (COSArray)srcLabels.getDictionaryObject( COSName.getPDFName( "Nums" ) );
+            for( int i=0; i<srcNums.size(); i+=2 )
+            {
+                COSNumber labelIndex = (COSNumber)srcNums.getObject( i );
+                long labelIndexValue = labelIndex.intValue();
+                destNums.add( new COSInteger( labelIndexValue + destPageCount ) );
+                destNums.add( copyStreamsIntoDocument( destination, srcNums.getObject( i+1 ) ) );
+            }
+        }
+        
+        COSName metadata = COSName.getPDFName( "Metadata" );
+        COSStream destMetadata = (COSStream)destRoot.getDictionaryObject( metadata );
+        COSStream srcMetadata = (COSStream)srcRoot.getDictionaryObject( metadata );
+        if( destMetadata == null && srcMetadata != null )
+        {
+            PDStream newStream = new PDStream( destination, srcMetadata.getUnfilteredStream(), false );
+            newStream.getStream().mergeInto( srcMetadata );
+            newStream.addCompression();
+            destRoot.setItem( metadata, newStream );
+        }
+
+        //finally append the pages
+        List pages = source.getDocumentCatalog().getAllPages();
+        Iterator pageIter = pages.iterator();
+        while( pageIter.hasNext() )
+        {
+            PDPage page = (PDPage)pageIter.next();
+            PDPage newPage = 
+                new PDPage( (COSDictionary)copyStreamsIntoDocument( destination, page.getCOSDictionary() ) );
+            destination.addPage( newPage );
+        }
+    }
+    Map clonedVersion = new HashMap();
+    
+    private COSBase copyStreamsIntoDocument( PDDocument destination, COSBase base ) throws IOException
+    {
+        
+        COSBase retval = (COSBase)clonedVersion.get( base );
+        if( retval != null )
+        {
+            return retval;
+        }
+        if( base instanceof COSObject )
+        {
+            COSObject object = (COSObject)base; 
+            retval = new COSObject(copyStreamsIntoDocument( destination, object.getObject() ) );
+        }
+        else if( base instanceof COSArray )
+        {
+            retval = new COSArray();
+            COSArray array = (COSArray)base;
+            for( int i=0; i<array.size(); i++ )
+            {
+                ((COSArray)retval).add( copyStreamsIntoDocument( destination, array.get( i ) ) );
+            }
+        }
+        else if( base instanceof COSDictionary )
+        {
+            COSDictionary dic = (COSDictionary)base;
+            List keys = dic.keyList();
+            if( base instanceof COSStream )
+            {
+                COSStream originalStream = (COSStream)base;
+                PDStream stream = new PDStream( destination, originalStream.getFilteredStream(), true );
+                clonedVersion.put( base, stream.getStream() );
+                for( int i=0; i<keys.size(); i++ )
+                {
+                    COSName key = (COSName)keys.get( i );
+                    stream.getStream().setItem( key, copyStreamsIntoDocument(destination,dic.getItem(key)));
+                }
+                retval = stream.getStream();
+            }
+            else
+            {     
+                retval = new COSDictionary();
+                clonedVersion.put( base, retval );
+                for( int i=0; i<keys.size(); i++ )
+                {
+                    COSName key = (COSName)keys.get( i );
+                    ((COSDictionary)retval).setItem( key, copyStreamsIntoDocument(destination,dic.getItem(key)));
+                }
+            }
+        }
+        else
+        {
+            retval = base;
+        }
+        clonedVersion.put( base, retval );
+        return retval;
+    }
+
+    /**
+     * concat two pdf documents.
+     *
+     * @param in1 The first template file
+     * @param in2 The second template file
+     * @param out The created fiel with all pages from document one and document two
+     *
+     * @throws IOException If there is an error writing the data.
+     * @throws COSVisitorException If there is an error generating the PDF document.
+     */
+    public void doIt(String in1, String in2, String out) throws IOException, COSVisitorException
+    {
+        PDDocument doc1 = null;
+        PDDocument doc2 = null;
+        try
+        {
+            doc1 = PDDocument.load( in1 );
+            doc2 = PDDocument.load( in2 );
+
+            appendDocument(doc1, doc2);
+            doc1.save( out );
+        }
+        catch( Exception e )
+        {
+            e.printStackTrace();
+        }
+        finally
+        {
+            close( doc1 );
+            close( doc2 );
+        }
+    }
+
+    private void close( PDDocument doc ) throws IOException
+    {
+        if( doc != null )
+        {
+            doc.close();
+        }
+    }
+
+    /**
+     * This will concat two pdf documents.
+     * <br />
+     * see usage() for commandline
+     *
+     * @param args command line arguments
+     */
+    public static void main(String[] args)
+    {
+        AppendDoc app = new AppendDoc();
+        try
+        {
+            if( args.length != 3 )
+            {
+                app.usage();
+            }
+            else
+            {
+                app.doIt( args[0], args[1], args[2]);
+            }
+        }
+        catch( Exception e )
+        {
+            e.printStackTrace();
+        }
+    }
+    /**
+     * This will print out a message telling how to use this example.
+     */
+    private void usage()
+    {
+        System.err.println( "usage: " + this.getClass().getName() + " <input-file1> <input-file2> <output-file>" );
+    }
+}
\ No newline at end of file
-- 
cgit v1.2.3