org.apache.hadoop.hdfs.server.common.IncorrectVersionException.java Source code

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Here is the source code for org.apache.hadoop.hdfs.server.common.IncorrectVersionException.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.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 + ".");
    }

}