/*
    * Copyright 2002-2013 the original author or authors.
    *
    * Licensed 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.springframework.web.socket.adapter.standard;
  
  import java.util.List;
  import java.util.Locale;
  import java.util.Map;
  import javax.websocket.Extension;
  
  import org.springframework.util.LinkedCaseInsensitiveMap;
  import org.springframework.web.socket.WebSocketExtension;
  
  /**
   * A sub-class of {@link org.springframework.web.socket.WebSocketExtension} that
   * can be constructed from an {@link javax.websocket.Extension}.
   *
   * @author Rossen Stoyanchev
   * @since 4.0
   */
  public class StandardToWebSocketExtensionAdapter extends WebSocketExtension {
  
  
  	public StandardToWebSocketExtensionAdapter(Extension extension) {
  		super(extension.getName(), initParameters(extension));
  	}
  
  
  	private static Map<String, String> initParameters(Extension extension) {
  		List<Extension.Parameter> parameters = extension.getParameters();
  		Map<String, String> result = new LinkedCaseInsensitiveMap<String>(parameters.size(), Locale.ENGLISH);
  		for (Extension.Parameter parameter : parameters) {
  			result.put(parameter.getName(), parameter.getValue());
  		}
  		return result;
  	}
  
  }