    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 * Unless required by applicable law or agreed to in writing, software
    012 * distributed under the License is distributed on an "AS IS" BASIS,
    013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 * See the License for the specific language governing permissions and
    015 * limitations under the License.
    016 */
    017package org.apache.commons.imaging.formats.jpeg.segments;
    018
    019import java.io.ByteArrayInputStream;
    020import java.io.IOException;
    021import java.io.InputStream;
    022import java.util.Map;
    023
    024import org.apache.commons.imaging.ImageReadException;
    025import org.apache.commons.imaging.formats.jpeg.JpegImageParser;
    026import org.apache.commons.imaging.formats.jpeg.iptc.IptcParser;
    027import org.apache.commons.imaging.formats.jpeg.iptc.PhotoshopApp13Data;
    028
    029public class App13Segment extends AppnSegment {
    030
    031    public App13Segment(final JpegImageParser parser, final int marker, final byte[] segmentData)
    032            throws IOException {
    033        this(marker, segmentData.length, new ByteArrayInputStream(
    034                segmentData));
    035    }
    036
    037    public App13Segment(final int marker, final int markerLength,
    038            final InputStream is) throws IOException {
    039        super(marker, markerLength, is);
    040
    041        // isIPTCJpegSegment = new IptcParser().isIPTCJpegSegment(bytes);
    042        // if (isIPTCJpegSegment)
    043        // {
    044        // /*
    045        // * In practice, App13 segments are only used for Photoshop/IPTC
    046        // * metadata. However, we should not treat App13 signatures without
    047        // * Photoshop's signature as Photoshop/IPTC segments.
    048        // */
    049        // boolean verbose = false;
    050        // boolean strict = false;
    051        // elements.addAll(new IptcParser().parseIPTCJPEGSegment(bytes,
    052        // verbose, strict));
    053        // }
    054    }
    055
    056    public boolean isPhotoshopJpegSegment() {
    057        return new IptcParser().isPhotoshopJpegSegment(getSegmentData());
    058    }
    059
    060    public PhotoshopApp13Data parsePhotoshopSegment(final Map<String, Object> params)
    061            throws ImageReadException, IOException {
    062        /*
    063         * In practice, App13 segments are only used for Photoshop/IPTC
    064         * metadata. However, we should not treat App13 signatures without
    065         * Photoshop's signature as Photoshop/IPTC segments.
    066         */
    067        if (!isPhotoshopJpegSegment()) {
    068            return null;
    069        }
    070
    071        return new IptcParser().parsePhotoshopSegment(getSegmentData(), params);
    072    }
    073}