DifferenceInfo.java

package io.blobkeeper.cluster.domain;

/*
 * Copyright (C) 2015 by Denis M. Gabaydulin
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

import com.google.common.base.MoreObjects;
import com.google.common.base.Objects;
import io.blobkeeper.common.util.LeafNode;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

public class DifferenceInfo implements Serializable {
    private static final long serialVersionUID = 8519422458593620668L;

    private int disk;
    private int partition;
    private List<LeafNode> difference = new ArrayList<>();
    private boolean completelyDifferent = false;

    public int getDisk() {
        return disk;
    }

    public void setDisk(int disk) {
        this.disk = disk;
    }

    public int getPartition() {
        return partition;
    }

    public void setPartition(int partition) {
        this.partition = partition;
    }

    public List<LeafNode> getDifference() {
        return difference;
    }

    public boolean isNoDiff() {
        return difference.isEmpty() && !isCompletelyDifferent();
    }

    public void setDifference(List<LeafNode> difference) {
        this.difference = difference;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        DifferenceInfo that = (DifferenceInfo) o;

        return Objects.equal(this.disk, that.disk) &&
                Objects.equal(this.partition, that.partition);
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(disk, partition);
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
                .add("disk", disk)
                .add("partition", partition)
                .add("diff", difference)
                .add("completelyDifferent", completelyDifferent)
                .toString();
    }

    /**
     * This flag used for replication of an active partition. We don't know the merkle tree yet.
     */
    public boolean isCompletelyDifferent() {
        return completelyDifferent;
    }

    public void setCompletelyDifferent(boolean completelyDifferent) {
        this.completelyDifferent = completelyDifferent;
    }
}