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1   /*
2    * Copyright 2014 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty.handler.ssl;
17  
18  import static io.netty.handler.ssl.ApplicationProtocolUtil.toList;
19  import static io.netty.util.internal.ObjectUtil.checkNotNull;
20  
21  import java.util.List;
22  
23  /**
24   * OpenSSL {@link ApplicationProtocolNegotiator} for NPN.
25   */
26  public final class OpenSslNpnApplicationProtocolNegotiator implements OpenSslApplicationProtocolNegotiator {
27      private final List<String> protocols;
28  
29      public OpenSslNpnApplicationProtocolNegotiator(Iterable<String> protocols) {
30          this.protocols = checkNotNull(toList(protocols), "protocols");
31      }
32  
33      public OpenSslNpnApplicationProtocolNegotiator(String... protocols) {
34          this.protocols = checkNotNull(toList(protocols), "protocols");
35      }
36  
37      @Override
38      public List<String> protocols() {
39          return protocols;
40      }
41  }