/** * 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 org.apache.hadoop.io.Writable; import org.apache.hadoop.io.Text; import java.io.DataInput; import java.io.DataOutput; import java.io.IOException; 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 implements Writable { // used for hashCode private static final int PRIME = 16777619; private String[] files; private 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; } /** * {@inheritDoc} */ @Override public void readFields(DataInput in) throws IOException { int fileCount = in.readInt(); files = new String[fileCount]; for (int i = 0; i < fileCount; i++) { files[i] = Text.readString(in); } cookie = Text.readString(in); } /** * {@inheritDoc} */ @Override public void write(DataOutput out) throws IOException { out.writeInt(files.length); for (int i = 0; i < files.length; i++) { Text.writeString(out, files[i]); } Text.writeString(out, cookie); } /** * {@inheritDoc} */ 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); } /** * {@inheritDoc} */ public int hashCode() { int result = cookie.hashCode(); for (String file : files) { result = PRIME * result + file.hashCode(); } return result; } }