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MSFTBX - Mass Spectrometry File Tool Box
There is a newer version: 1.8.8
/* 
 * Copyright 2016 Dmitry Avtonomov.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package umich.ms.fileio.chunk;

import org.apache.commons.pool2.ObjectPool;
import umich.ms.util.ByteArrayHolder;

import java.lang.ref.WeakReference;

/**
 * @author Dmitry Avtonomov
 */
public class FileChunk {
    int chunkNum;
    long offset;
    int length;
//    WeakReference bahRef = new WeakReference(null);
    ByteArrayHolder bah;
    ObjectPool pool;

    public FileChunk(int chunkNum, long offset, int length) {
        this.chunkNum = chunkNum;
        this.offset = offset;
        this.length = length;
        this.bah = null;
    }

    public int getChunkNum() {
        return chunkNum;
    }

    public long getOffset() {
        return offset;
    }

    public int getLength() {
        return length;
    }

    public ByteArrayHolder getBah() {
        return bah;
    }

    public void setBah(ByteArrayHolder bah) {
        setBah(bah, null);
    }

    /**
     * Sets the byte[] and indicates which pool this array is from.
     * @param bah
     * @param pool
     */
    public void setBah(ByteArrayHolder bah,  ObjectPool pool) {
        this.bah = bah;
        this.pool = pool;
    }

    public ObjectPool getPool() {
        return pool;
    }

    public void setPool(ObjectPool pool) {
        this.pool = pool;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o)
            return true;
        if (!(o instanceof FileChunk))
            return false;

        FileChunk fileChunk = (FileChunk) o;

        if (chunkNum != fileChunk.chunkNum)
            return false;
        if (offset != fileChunk.offset)
            return false;
        return length == fileChunk.length;

    }

    @Override
    public int hashCode() {
        int result = chunkNum;
        result = 31 * result + (int) (offset ^ (offset >>> 32));
        result = 31 * result + length;
        return result;
    }
}