    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.ImageReadException;
    030import org.apache.commons.imaging.common.BinaryFunctions;
    031
    032public class IccTag {
    033
    034    private static final Logger LOGGER = Logger.getLogger(IccTag.class.getName());
    035
    036    public final int signature;
    037    public final int offset;
    038    public final int length;
    039    public final IccTagType fIccTagType;
    040    private byte[] data;
    041    private IccTagDataType itdt;
    042    private int dataTypeSignature;
    043
    044    // public final byte[] data;
    045
    046    public IccTag(final int signature, final int offset, final int length, final IccTagType fIccTagType) {
    047        this.signature = signature;
    048        this.offset = offset;
    049        this.length = length;
    050        this.fIccTagType = fIccTagType;
    051    }
    052
    053    public void setData(final byte[] bytes) throws IOException {
    054        data = bytes;
    055
    056        try (InputStream bis = new ByteArrayInputStream(bytes)) {
    057            dataTypeSignature = BinaryFunctions.read4Bytes("data type signature", bis,
    058                    "ICC: corrupt tag data", ByteOrder.BIG_ENDIAN);
    059
    060            itdt = getIccTagDataType(dataTypeSignature);
    061            // if (itdt != null)
    062            // {
    063            // System.out.println("\t\t\t" + "itdt: " + itdt.name);
    064            // }
    065        }
    066    }
    067
    068    private IccTagDataType getIccTagDataType(final int quad) {
    069        for (final IccTagDataType iccTagDataType : IccTagDataTypes.values()) {
    070            if (iccTagDataType.getSignature() == quad) {
    071                return iccTagDataType;
    072            }
    073        }
    074
    075        return null;
    076    }
    077
    078    public void dump(final String prefix) throws ImageReadException, IOException {
    079        try (StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw)) {
    080            dump(pw, prefix);
    081            pw.flush();
    082            sw.flush();
    083            LOGGER.fine(sw.toString());
    084        }
    085    }
    086
    087    public void dump(final PrintWriter pw, final String prefix) throws ImageReadException,
    088            IOException {
    089        pw.println(prefix
    090                + "tag signature: "
    091                + Integer.toHexString(signature)
    092                + " ("
    093                + new String(new byte[] {
    094                        (byte) (0xff & (signature >> 24)),
    095                        (byte) (0xff & (signature >> 16)),
    096                        (byte) (0xff & (signature >> 8)),
    097                        (byte) (0xff & (signature >> 0)), }, StandardCharsets.US_ASCII)
    098                + ")");
    099
    100        if (data == null) {
    101            pw.println(prefix + "data: " + Arrays.toString((byte[]) null));
    102        } else {
    103            pw.println(prefix + "data: " + data.length);
    104
    105            pw.println(prefix
    106                    + "data type signature: "
    107                    + Integer.toHexString(dataTypeSignature)
    108                    + " ("
    109                    + new String(new byte[] {
    110                            (byte) (0xff & (dataTypeSignature >> 24)),
    111                            (byte) (0xff & (dataTypeSignature >> 16)),
    112                            (byte) (0xff & (dataTypeSignature >> 8)),
    113                            (byte) (0xff & (dataTypeSignature >> 0)), }, StandardCharsets.US_ASCII)
    114                    + ")");
    115
    116            if (itdt == null) {
    117                pw.println(prefix + "IccTagType : " + "unknown");
    118            } else {
    119                pw.println(prefix + "IccTagType : " + itdt.getName());
    120                itdt.dump(prefix, data);
    121            }
    122
    123        }
    124
    125        pw.println("");
    126        pw.flush();
    127
    128    }
    129}