/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.sanselan.formats.jpeg.iptc;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.sanselan.ImageReadException;
import org.apache.sanselan.ImageWriteException;
import org.apache.sanselan.common.byteSources.ByteSource;
import org.apache.sanselan.common.byteSources.ByteSourceArray;
import org.apache.sanselan.common.byteSources.ByteSourceFile;
import org.apache.sanselan.common.byteSources.ByteSourceInputStream;
import org.apache.sanselan.formats.jpeg.xmp.JpegRewriter;
/**
* Interface for Exif write/update/remove functionality for Jpeg/JFIF images.
* <p>
* <p>
* See the source of the IPTCUpdateExample class for example usage.
*
* @see org.apache.sanselan.sampleUsage.WriteIPTCExample
*/
public class JpegIptcRewriter extends JpegRewriter implements IPTCConstants
{
/**
* Reads a Jpeg image, removes all IPTC data from the App13 segment but
* leaves the other data in that segment (if present) unchanged and writes
* the result to a stream.
* <p>
*
* @param src
* Image file.
* @param os
* OutputStream to write the image to.
*
* @see java.io.File
* @see java.io.OutputStream
*/
public void removeIPTC(File src, OutputStream os)
throws ImageReadException, IOException, ImageWriteException
{
ByteSource byteSource = new ByteSourceFile(src);
removeIPTC(byteSource, os);
}
/**
* Reads a Jpeg image, removes all IPTC data from the App13 segment but
* leaves the other data in that segment (if present) unchanged and writes
* the result to a stream.
* <p>
*
* @param src
* Byte array containing Jpeg image data.
* @param os
* OutputStream to write the image to.
*/
public void removeIPTC(byte src[], OutputStream os)
throws ImageReadException, IOException, ImageWriteException
{
ByteSource byteSource = new ByteSourceArray(src);
removeIPTC(byteSource, os);
}
/**
* Reads a Jpeg image, removes all IPTC data from the App13 segment but
* leaves the other data in that segment (if present) unchanged and writes
* the result to a stream.
* <p>
*
* @param src
* InputStream containing Jpeg image data.
* @param os
* OutputStream to write the image to.
*/
public void removeIPTC(InputStream src, OutputStream os)
throws ImageReadException, IOException, ImageWriteException
{
ByteSource byteSource = new ByteSourceInputStream(src, null);
removeIPTC(byteSource, os);
}
/**
* Reads a Jpeg image, removes all IPTC data from the App13 segment but
* leaves the other data in that segment (if present) unchanged and writes
* the result to a stream.
* <p>
*
* @param byteSource
* ByteSource containing Jpeg image data.
* @param os
* OutputStream to write the image to.
*/
public void removeIPTC(ByteSource byteSource, OutputStream os)
throws ImageReadException, IOException, ImageWriteException
{
JFIFPieces jfifPieces = analyzeJFIF(byteSource);
List oldPieces = jfifPieces.pieces;
List photoshopApp13Segments = findPhotoshopApp13Segments(oldPieces);
if (photoshopApp13Segments.size() > 1)
throw new ImageReadException(
"Image contains more than one Photoshop App13 segment.");
List newPieces = removePhotoshopApp13Segments(oldPieces);
if (photoshopApp13Segments.size() == 1)
{
JFIFPieceSegment oldSegment = (JFIFPieceSegment) photoshopApp13Segments
.get(0);
Map params = new HashMap();
PhotoshopApp13Data oldData = new IPTCParser()
.parsePhotoshopSegment(oldSegment.segmentData, params);
List newBlocks = oldData.getNonIptcBlocks();
List newRecords = new ArrayList();
PhotoshopApp13Data newData = new PhotoshopApp13Data(newRecords,
newBlocks);
byte segmentBytes[] = new IPTCParser()
.writePhotoshopApp13Segment(newData);
JFIFPieceSegment newSegment = new JFIFPieceSegment(
oldSegment.marker, segmentBytes);
newPieces.add(oldPieces.indexOf(oldSegment), newSegment);
}
writeSegments(os, newPieces);
}
/**
* Reads a Jpeg image, replaces the IPTC data in the App13 segment but
* leaves the other data in that segment (if present) unchanged and writes
* the result to a stream.
*
* @param src
* Byte array containing Jpeg image data.
* @param os
* OutputStream to write the image to.
* @param newData
* structure containing IPTC data.
*/
public void writeIPTC(byte src[], OutputStream os,
PhotoshopApp13Data newData) throws ImageReadException, IOException,
ImageWriteException
{
ByteSource byteSource = new ByteSourceArray(src);
writeIPTC(byteSource, os, newData);
}
/**
* Reads a Jpeg image, replaces the IPTC data in the App13 segment but
* leaves the other data in that segment (if present) unchanged and writes
* the result to a stream.
*
* @param src
* InputStream containing Jpeg image data.
* @param os
* OutputStream to write the image to.
* @param newData
* structure containing IPTC data.
*/
public void writeIPTC(InputStream src, OutputStream os,
PhotoshopApp13Data newData) throws ImageReadException, IOException,
ImageWriteException
{
ByteSource byteSource = new ByteSourceInputStream(src, null);
writeIPTC(byteSource, os, newData);
}
/**
* Reads a Jpeg image, replaces the IPTC data in the App13 segment but
* leaves the other data in that segment (if present) unchanged and writes
* the result to a stream.
*
* @param src
* Image file.
* @param os
* OutputStream to write the image to.
* @param newData
* structure containing IPTC data.
*/
public void writeIPTC(File src, OutputStream os, PhotoshopApp13Data newData)
throws ImageReadException, IOException, ImageWriteException
{
ByteSource byteSource = new ByteSourceFile(src);
writeIPTC(byteSource, os, newData);
}
/**
* Reads a Jpeg image, replaces the IPTC data in the App13 segment but
* leaves the other data in that segment (if present) unchanged and writes
* the result to a stream.
*
* @param byteSource
* ByteSource containing Jpeg image data.
* @param os
* OutputStream to write the image to.
* @param newData
* structure containing IPTC data.
*/
public void writeIPTC(ByteSource byteSource, OutputStream os,
PhotoshopApp13Data newData) throws ImageReadException, IOException,
ImageWriteException
{
JFIFPieces jfifPieces = analyzeJFIF(byteSource);
List oldPieces = jfifPieces.pieces;
List photoshopApp13Segments = findPhotoshopApp13Segments(oldPieces);
if (photoshopApp13Segments.size() > 1)
throw new ImageReadException(
"Image contains more than one Photoshop App13 segment.");
List newPieces = removePhotoshopApp13Segments(oldPieces);
{
// discard old iptc blocks.
List newBlocks = newData.getNonIptcBlocks();
byte[] newBlockBytes = new IPTCParser().writeIPTCBlock(newData
.getRecords());
int blockType = IMAGE_RESOURCE_BLOCK_IPTC_DATA;
byte[] blockNameBytes = new byte[0];
IPTCBlock newBlock = new IPTCBlock(blockType, blockNameBytes,
newBlockBytes);
newBlocks.add(newBlock);
newData = new PhotoshopApp13Data(newData.getRecords(), newBlocks);
byte segmentBytes[] = new IPTCParser()
.writePhotoshopApp13Segment(newData);
JFIFPieceSegment newSegment = new JFIFPieceSegment(
JPEG_APP13_Marker, segmentBytes);
newPieces = insertAfterLastAppSegments(newPieces, Arrays
.asList(new JFIFPieceSegment[] { newSegment, }));
}
writeSegments(os, newPieces);
}
}