| /** |
| * 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.namenode.ha; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.NameNodeProxiesClient; |
| import org.apache.hadoop.ipc.AlignmentContext; |
| import org.apache.hadoop.security.UserGroupInformation; |
| |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| public class ClientHAProxyFactory<T> implements HAProxyFactory<T> { |
| |
| private AlignmentContext alignmentContext; |
| |
| public void setAlignmentContext(AlignmentContext alignmentContext) { |
| this.alignmentContext = alignmentContext; |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public T createProxy(Configuration conf, InetSocketAddress nnAddr, |
| Class<T> xface, UserGroupInformation ugi, boolean withRetries, |
| AtomicBoolean fallbackToSimpleAuth) throws IOException { |
| if (alignmentContext != null) { |
| return (T) NameNodeProxiesClient.createProxyWithAlignmentContext( |
| nnAddr, conf, ugi, false, fallbackToSimpleAuth, alignmentContext); |
| } |
| return (T) NameNodeProxiesClient.createNonHAProxyWithClientProtocol( |
| nnAddr, conf, ugi, false, fallbackToSimpleAuth); |
| } |
| |
| @Override |
| public T createProxy(Configuration conf, InetSocketAddress nnAddr, |
| Class<T> xface, UserGroupInformation ugi, boolean withRetries) |
| throws IOException { |
| return createProxy(conf, nnAddr, xface, ugi, withRetries, null); |
| } |
| } |