查看本类的 API文档回源码主页

   /*
    * Copyright 2014 The Netty Project
    *
    * The Netty Project 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:
    *
    *   https://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 io.netty.handler.codec.http.websocketx.extensions;
  
  import io.netty.util.internal.ObjectUtil;
  
  import java.util.Collections;
  import java.util.Map;
  
  /**
   * A WebSocket Extension data from the <tt>Sec-WebSocket-Extensions</tt> header.
   *
   * See <tt>io.netty.handler.codec.http.HttpHeaders.Names.SEC_WEBSOCKET_EXTENSIONS</tt>.
   */
  public final class WebSocketExtensionData {
  
      private final String name;
      private final Map<String, String> parameters;
  
      public WebSocketExtensionData(String name, Map<String, String> parameters) {
          this.name = ObjectUtil.checkNotNull(name, "name");
          this.parameters = Collections.unmodifiableMap(
                  ObjectUtil.checkNotNull(parameters, "parameters"));
      }
  
      /**
       * @return the extension name.
       */
      public String name() {
          return name;
      }
  
      /**
       * @return the extension optional parameters.
       */
      public Map<String, String> parameters() {
          return parameters;
      }
  }