| /** |
| * 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.server.common; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.hdfs.protocol.HdfsConstants; |
| |
| /** |
| * The exception is thrown when external version does not match |
| * current version of the application. |
| * |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| public class IncorrectVersionException extends IOException { |
| private static final long serialVersionUID = 1L; |
| |
| public IncorrectVersionException(String message) { |
| super(message); |
| } |
| |
| public IncorrectVersionException(String minimumVersion, String reportedVersion, |
| String remoteDaemon, String thisDaemon) { |
| this("The reported " + remoteDaemon + " version is too low to communicate" + |
| " with this " + thisDaemon + ". " + remoteDaemon + " version: '" + |
| reportedVersion + "' Minimum " + remoteDaemon + " version: '" + |
| minimumVersion + "'"); |
| } |
| |
| public IncorrectVersionException(int currentLayoutVersion, |
| int versionReported, String ofWhat) { |
| this(versionReported, ofWhat, currentLayoutVersion); |
| } |
| |
| public IncorrectVersionException(int versionReported, |
| String ofWhat, |
| int versionExpected) { |
| this("Unexpected version " |
| + (ofWhat==null ? "" : "of " + ofWhat) + ". Reported: " |
| + versionReported + ". Expecting = " + versionExpected + "."); |
| } |
| |
| } |