001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.exceptions;
019
020import org.apache.yetus.audience.InterfaceAudience;
021
022/**
023 * An error requesting an RPC protocol that the server is not serving.
024 */
025@SuppressWarnings("serial")
026@InterfaceAudience.Public
027public class UnknownProtocolException extends org.apache.hadoop.hbase.DoNotRetryIOException {
028  private Class<?> protocol;
029
030  public UnknownProtocolException(String mesg) {
031    // required for unwrapping from a RemoteException
032    super(mesg);
033  }
034
035  public UnknownProtocolException(Class<?> protocol) {
036    this(protocol, "Server is not handling protocol " + protocol.getName());
037  }
038
039  public UnknownProtocolException(Class<?> protocol, String mesg) {
040    super(mesg);
041    this.protocol = protocol;
042  }
043
044  public Class getProtocol() {
045    return protocol;
046  }
047}