| /** |
| * 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.web.resources; |
| |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_REPLICATION_DEFAULT; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_REPLICATION_KEY; |
| |
| import org.apache.hadoop.conf.Configuration; |
| |
| /** Replication parameter. */ |
| public class ReplicationParam extends ShortParam { |
| /** Parameter name. */ |
| public static final String NAME = "replication"; |
| /** Default parameter value. */ |
| public static final String DEFAULT = NULL; |
| |
| private static final Domain DOMAIN = new Domain(NAME); |
| |
| /** |
| * Constructor. |
| * @param value the parameter value. |
| */ |
| public ReplicationParam(final Short value) { |
| super(DOMAIN, value, (short)1, null); |
| } |
| |
| /** |
| * Constructor. |
| * @param str a string representation of the parameter value. |
| */ |
| public ReplicationParam(final String str) { |
| this(DOMAIN.parse(str)); |
| } |
| |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| /** @return the value or, if it is null, return the default from conf. */ |
| public short getValue(final Configuration conf) { |
| return getValue() != null? getValue() |
| : (short)conf.getInt(DFS_REPLICATION_KEY, DFS_REPLICATION_DEFAULT); |
| } |
| } |