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 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.apache.activemq.transport.netty;
  
  import javax.net.ssl.SSLEngine;
  import javax.net.ssl.X509ExtendedKeyManager;
  import java.net.Socket;
  import java.security.Principal;
  import java.security.PrivateKey;
  import java.security.cert.X509Certificate;
  
  /**
   * An X509ExtendedKeyManager wrapper which always chooses and only returns the given alias, and defers retrieval to the
   * delegate key manager.
   */
  public class X509AliasKeyManager extends X509ExtendedKeyManager {
  
     private X509ExtendedKeyManager delegate;
     private String alias;
  
     public X509AliasKeyManager(String alias, X509ExtendedKeyManager delegate) throws IllegalArgumentException {
        if (alias == null) {
           throw new IllegalArgumentException("The given key alias must not be null.");
        }
  
        this.alias = alias;
        this.delegate = delegate;
     }
  
     @Override
     public String chooseClientAlias(String[] keyType, Principal[] issuers, Socket socket) {
        return alias;
     }
  
     @Override
     public String chooseServerAlias(String keyType, Principal[] issuers, Socket socket) {
        return alias;
     }
  
     @Override
     public X509Certificate[] getCertificateChain(String alias) {
        return delegate.getCertificateChain(alias);
     }
  
     @Override
     public String[] getClientAliases(String keyType, Principal[] issuers) {
        return new String[]{alias};
     }
  
     @Override
     public PrivateKey getPrivateKey(String alias) {
        return delegate.getPrivateKey(alias);
     }
  
     @Override
     public String[] getServerAliases(String keyType, Principal[] issuers) {
        return new String[]{alias};
     }
  
     @Override
     public String chooseEngineClientAlias(String[] keyType, Principal[] issuers, SSLEngine engine) {
        return alias;
     }
  
     @Override
     public String chooseEngineServerAlias(String keyType, Principal[] issuers, SSLEngine engine) {
        return alias;
     }
  }
  