content: /*
   * 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 WARRANTIESOR 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.aries.web.converter.impl;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Properties;
  
  import org.apache.aries.web.converter.WarToWabConverter;
  import org.osgi.framework.Constants;
  
  /**
   * Simple key case-insensitive map where only selected set of keys are 
   * treated in case-insensitive way.
   */
  @SuppressWarnings("serial")
  public class CaseInsensitiveMap extends HashMap<String, String> {
      
      private static final Map<String, String> DEFAULT_KEY_MAP = new HashMap<String, String>();
      static {
          addKeyMapping(DEFAULT_KEY_MAP, Constants.BUNDLE_SYMBOLICNAME);
          addKeyMapping(DEFAULT_KEY_MAP, Constants.BUNDLE_VERSION);
          addKeyMapping(DEFAULT_KEY_MAP, Constants.BUNDLE_MANIFESTVERSION);
          addKeyMapping(DEFAULT_KEY_MAP, Constants.IMPORT_PACKAGE);
          addKeyMapping(DEFAULT_KEY_MAP, Constants.BUNDLE_CLASSPATH);
          addKeyMapping(DEFAULT_KEY_MAP, WarToWabConverter.WEB_CONTEXT_PATH);
      }
      
      private static void addKeyMapping(Map<String, String> mappings, String name) {
          mappings.put(name.toLowerCase(), name);
      }
      
      private Map<String, String> keyMap;
      
      public CaseInsensitiveMap() {
          this.keyMap = new HashMap<String, String>(DEFAULT_KEY_MAP);
      }
      
      public CaseInsensitiveMap(Map<String, String> source) {
          this();
          putAll(source);
      }
      
      public CaseInsensitiveMap(Properties source) {
          this();
          for (Map.Entry<Object, Object> entry : source.entrySet()) {
              String key = entry.getKey().toString();
              String value = entry.getValue().toString();
              put(key, value);
          }
      }
      
      @Override
      public String put(String name, String value) {
          return super.put(getMappedName(name), value);
      }
      
      @Override
      public String get(Object name) {
          if (!(name instanceof String)) {
              return null;
          }
          return super.get(getMappedName((String) name));
      }
      
      @Override
      public boolean containsKey(Object name) {
          if (!(name instanceof String)) {
              return false;
          }
          return super.containsKey(getMappedName((String) name));
      }
      
      private String getMappedName(String name) {
          String mappedName = keyMap.get(name.toLowerCase());
          if (mappedName == null) {
              mappedName = name;
          }
          return mappedName;
      }
  }
  
  