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.iptc;
018
019import java.util.Objects;
020
021/**
022 * Represents an IPTC block, a set of key-value pairs of Photoshop IPTC data.
023 */
024public class IptcBlock {
025    // N.B. The class is used in public API parameter types
026
027    private final int blockType;
028    private final byte[] blockNameBytes;
029    private final byte[] blockData;
030
031    public IptcBlock(final int blockType, final byte[] blockNameBytes, final byte[] blockData) {
032        Objects.requireNonNull(blockNameBytes, "Block name bytes must not be null.");
033        Objects.requireNonNull(blockNameBytes, "Block data bytes must not be null.");
034        this.blockData = blockData;
035        this.blockNameBytes = blockNameBytes;
036        this.blockType = blockType;
037    }
038
039    public int getBlockType() {
040        return blockType;
041    }
042
043    public byte[] getBlockNameBytes() {
044        return blockNameBytes.clone();
045    }
046
047    public byte[] getBlockData() {
048        return blockData.clone();
049    }
050
051
052    public boolean isIPTCBlock() {
053        return blockType == IptcConstants.IMAGE_RESOURCE_BLOCK_IPTC_DATA;
054    }
055}