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.icc;
018
019import java.io.ByteArrayInputStream;
020import java.io.IOException;
021import java.io.InputStream;
022import java.io.PrintWriter;
023import java.io.StringWriter;
024import java.nio.ByteOrder;
025import java.nio.charset.StandardCharsets;
026import java.util.Arrays;
027import java.util.logging.Logger;
028
029import org.apache.commons.imaging.ImagingException;
030import org.apache.commons.imaging.common.BinaryFunctions;
031
032public class IccTag {
033
034    static final int SHALLOW_SIZE = 40;
035    private static final Logger LOGGER = Logger.getLogger(IccTag.class.getName());
036
037    public final int signature;
038    public final int offset;
039    public final int length;
040    public final IccTagType fIccTagType;
041    private byte[] data;
042    private IccTagDataType itdt;
043    private int dataTypeSignature;
044
045    // public final byte[] data;
046
047    public IccTag(final int signature, final int offset, final int length, final IccTagType fIccTagType) {
048        this.signature = signature;
049        this.offset = offset;
050        this.length = length;
051        this.fIccTagType = fIccTagType;
052    }
053
054    public void dump(final PrintWriter pw, final String prefix) throws ImagingException, IOException {
055        pw.println(prefix + "tag signature: " + Integer.toHexString(signature) + " (" + new String(new byte[] { (byte) (0xff & signature >> 24),
056                (byte) (0xff & signature >> 16), (byte) (0xff & signature >> 8), (byte) (0xff & signature >> 0), }, StandardCharsets.US_ASCII) + ")");
057
058        if (data == null) {
059            pw.println(prefix + "data: " + Arrays.toString((byte[]) null));
060        } else {
061            pw.println(prefix + "data: " + data.length);
062
063            pw.println(prefix + "data type signature: " + Integer.toHexString(dataTypeSignature) + " ("
064                    + new String(new byte[] { (byte) (0xff & dataTypeSignature >> 24), (byte) (0xff & dataTypeSignature >> 16),
065                            (byte) (0xff & dataTypeSignature >> 8), (byte) (0xff & dataTypeSignature >> 0), }, StandardCharsets.US_ASCII)
066                    + ")");
067
068            if (itdt == null) {
069                pw.println(prefix + "IccTagType : " + "unknown");
070            } else {
071                pw.println(prefix + "IccTagType : " + itdt.getName());
072                itdt.dump(prefix, data);
073            }
074
075        }
076
077        pw.println("");
078        pw.flush();
079
080    }
081
082    public void dump(final String prefix) throws ImagingException, IOException {
083        try (StringWriter sw = new StringWriter();
084                PrintWriter pw = new PrintWriter(sw)) {
085            dump(pw, prefix);
086            pw.flush();
087            sw.flush();
088            LOGGER.fine(sw.toString());
089        }
090    }
091
092    private IccTagDataType getIccTagDataType(final int quad) {
093        for (final IccTagDataType iccTagDataType : IccTagDataTypes.values()) {
094            if (iccTagDataType.getSignature() == quad) {
095                return iccTagDataType;
096            }
097        }
098
099        return null;
100    }
101
102    public void setData(final byte[] bytes) throws IOException {
103        data = bytes;
104
105        try (InputStream bis = new ByteArrayInputStream(bytes)) {
106            dataTypeSignature = BinaryFunctions.read4Bytes("data type signature", bis, "ICC: corrupt tag data", ByteOrder.BIG_ENDIAN);
107
108            itdt = getIccTagDataType(dataTypeSignature);
109            // if (itdt != null)
110            // {
111            // System.out.println("\t\t\t" + "itdt: " + itdt.name);
112            // }
113        }
114    }
115}