org.apache.hadoop.hdfs.protocol.CorruptFileBlocks.java Source code

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Here is the source code for org.apache.hadoop.hdfs.protocol.CorruptFileBlocks.java

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/**
 * 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.
 */
package org.apache.hadoop.hdfs.protocol;

import java.util.Arrays;

/**
 * Contains a list of paths corresponding to corrupt files and a cookie
 * used for iterative calls to NameNode.listCorruptFileBlocks.
 *
 */
public class CorruptFileBlocks {
    // used for hashCode
    private static final int PRIME = 16777619;

    private final String[] files;
    private final String cookie;

    public CorruptFileBlocks() {
        this(new String[0], "");
    }

    public CorruptFileBlocks(String[] files, String cookie) {
        this.files = files;
        this.cookie = cookie;
    }

    public String[] getFiles() {
        return files;
    }

    public String getCookie() {
        return cookie;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof CorruptFileBlocks)) {
            return false;
        }
        CorruptFileBlocks other = (CorruptFileBlocks) obj;
        return cookie.equals(other.cookie) && Arrays.equals(files, other.files);
    }

    @Override
    public int hashCode() {
        int result = cookie.hashCode();

        for (String file : files) {
            result = PRIME * result + file.hashCode();
        }

        return result;
    }
}