    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.common;
    018
    019import java.io.IOException;
    020import java.io.OutputStream;
    021import java.util.Arrays;
    022
    023public class BinaryConstant {
    024    private final byte[] value;
    025
    026    public BinaryConstant(final byte[] value) {
    027        this.value = value.clone();
    028    }
    029
    030    @Override
    031    public boolean equals(final Object obj) {
    032        if (obj == null) {
    033            return false;
    034        }
    035        if (!(obj instanceof BinaryConstant)) {
    036            return false;
    037        }
    038        final BinaryConstant other = (BinaryConstant) obj;
    039        return equals(other.value);
    040    }
    041
    042    public boolean equals(final byte[] bytes) {
    043        return Arrays.equals(value, bytes);
    044    }
    045
    046    public boolean equals(final byte[] bytes, final int offset, final int length) {
    047        if (value.length != length) {
    048            return false;
    049        }
    050        for (int i = 0; i < length; i++) {
    051            if (value[i] != bytes[offset + i]) {
    052                return false;
    053            }
    054        }
    055        return true;
    056    }
    057
    058    @Override
    059    public int hashCode() {
    060        return Arrays.hashCode(value);
    061    }
    062
    063    public byte get(final int i) {
    064        return value[i];
    065    }
    066
    067    public int size() {
    068        return value.length;
    069    }
    070
    071    public byte[] toByteArray() {
    072        return value.clone();
    073    }
    074
    075    public void writeTo(final OutputStream os) throws IOException {
    076        for (final byte element : value) {
    077            os.write(element);
    078        }
    079    }
    080}