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     */
018    package org.apache.hadoop.hdfs.web.resources;
019    
020    import org.apache.hadoop.hdfs.server.namenode.NameNode;
021    
022    /** Namenode RPC address parameter. */
023    public class NamenodeRpcAddressParam extends InetSocketAddressParam {
024      /** Parameter name. */
025      public static final String NAME = "namenoderpcaddress";
026      /** Default parameter value. */
027      public static final String DEFAULT = "";
028    
029      private static final Domain DOMAIN = new Domain(NAME);
030    
031      /**
032       * Constructor.
033       * @param str a string representation of the parameter value.
034       */
035      public NamenodeRpcAddressParam(final String str) {
036        super(DOMAIN, str == null || str.equals(DEFAULT)? null: DOMAIN.parse(str));
037      }
038    
039      /**
040       * Construct an object using the RPC address of the given namenode.
041       */
042      public NamenodeRpcAddressParam(final NameNode namenode) {
043        super(DOMAIN, namenode.getNameNodeAddress());
044      }
045    
046      @Override
047      public String getName() {
048        return NAME;
049      }
050    }