code: /**
   * 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.cxf.ws.security.wss4j;
  
  import java.io.IOException;
  import java.util.HashMap;
  import java.util.Map;
  
  import javax.security.auth.callback.Callback;
  import javax.security.auth.callback.CallbackHandler;
  import javax.security.auth.callback.UnsupportedCallbackException;
  
  import org.apache.ws.security.WSPasswordCallback;
  
  public class TestPwdCallback implements CallbackHandler {
  
      private static Map<String, String> passwords = new HashMap<String, String>();
  
      static {
          passwords.put("myalias", "myAliasPassword");
          passwords.put("alice", "alicePassword");
      }
  
      public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
          for (int i = 0; i < callbacks.length; i++) {
              WSPasswordCallback pc = (WSPasswordCallback)callbacks[i];
  
              String pass = passwords.get(pc.getIdentifier());
              if (pass != null) {
                  pc.setPassword(pass);
              }
          }
      }
  }
  