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1   /**
2    *
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *     http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   */
19  
20  package org.apache.hadoop.hbase.exceptions;
21  
22  /**
23   * An error requesting an RPC protocol that the server is not serving.
24   */
25  @SuppressWarnings("serial")
26  public class UnknownProtocolException extends org.apache.hadoop.hbase.DoNotRetryIOException {
27    private Class<?> protocol;
28  
29    public UnknownProtocolException(String mesg) {
30      // required for unwrapping from a RemoteException
31      super(mesg);
32    }
33  
34    public UnknownProtocolException(Class<?> protocol) {
35      this(protocol, "Server is not handling protocol "+protocol.getName());
36    }
37  
38    public UnknownProtocolException(Class<?> protocol, String mesg) {
39      super(mesg);
40      this.protocol = protocol;
41    }
42  
43    public Class getProtocol() {
44      return protocol;
45    }
46  }