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 java.net.HttpURLConnection;
021    
022    /** Http DELETE operation parameter. */
023    public class DeleteOpParam extends HttpOpParam<DeleteOpParam.Op> {
024      /** Delete operations. */
025      public static enum Op implements HttpOpParam.Op {
026        DELETE(HttpURLConnection.HTTP_OK),
027    
028        NULL(HttpURLConnection.HTTP_NOT_IMPLEMENTED);
029    
030        final int expectedHttpResponseCode;
031    
032        Op(final int expectedHttpResponseCode) {
033          this.expectedHttpResponseCode = expectedHttpResponseCode;
034        }
035    
036        @Override
037        public HttpOpParam.Type getType() {
038          return HttpOpParam.Type.DELETE;
039        }
040    
041        @Override
042        public boolean getRequireAuth() {
043          return false;
044        }
045    
046        @Override
047        public boolean getDoOutput() {
048          return false;
049        }
050    
051        @Override
052        public boolean getRedirect() {
053          return false;
054        }
055    
056        @Override
057        public int getExpectedHttpResponseCode() {
058          return expectedHttpResponseCode;
059        }
060    
061        @Override
062        public String toQueryString() {
063          return NAME + "=" + this;
064        }
065      }
066    
067      private static final Domain<Op> DOMAIN = new Domain<Op>(NAME, Op.class);
068    
069      /**
070       * Constructor.
071       * @param str a string representation of the parameter value.
072       */
073      public DeleteOpParam(final String str) {
074        super(DOMAIN, DOMAIN.parse(str));
075      }
076    
077      @Override
078      public String getName() {
079        return NAME;
080      }
081    }