ByteArrayWrapper.java

/* SAAF: A static analyzer for APK files.
 * Copyright (C) 2013  syssec.rub.de
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.rub.syssec.saaf.application.instructions;

import java.util.Arrays;

/**
 * Small helper class to use byte[] in a HashMap.
 * TODO: Replace it, make it better, ... :)
 * 
 * From: from http://stackoverflow.com/questions/1058149/using-a-byte-array-as-hashmap-key-java 
 */
public class ByteArrayWrapper
{
    private final byte[] data;

    public ByteArrayWrapper(byte[] data) {
        if (data == null) {
            throw new IllegalArgumentException();
        }
        this.data = data;
    }

    @Override
    public boolean equals(Object other) {
        if (!(other instanceof ByteArrayWrapper)) {
            return false;
        }
        return Arrays.equals(data, ((ByteArrayWrapper)other).data);
    }

    @Override
    public int hashCode() {
        return Arrays.hashCode(data);
    }
}