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.ambari.server.security.credential;
  
  /**
   * GenericKeyCredential encapsulates a credential consisting of single key (for example, a password).
   */
  public class GenericKeyCredential implements Credential {
  
    /**
     * The plaintext password value
     */
    private char[] key = null;
  
    /**
     * Creates an empty GenericKeyCredential
     */
    public GenericKeyCredential() {
    }
  
    /**
     * Creates a new GenericKeyCredential
     *
     * @param key a char array containing the key for this credential
     */
    public GenericKeyCredential(char[] key) {
      this.key = key;
    }
  
    /**
     * @return a char array containing the key for this credential
     */
    public char[] getKey() {
      return key;
    }
  
    /**
     * @param key a char array containing the key for this credential
     */
    public void setKey(char[] key) {
      this.key = key;
    }
  
  
    /**
     * Returns a value representation of this GenericKeyCredential
     *
     * @return a String containing the value representation of this GenericKeyCredential
     */
    @Override
    public char[] toValue() {
      return this.key;
    }
  
    /**
     * Renders a new GenericKeyCredential from its value representation
     *
     * @param value a String containing the value representation of this GenericKeyCredential
     * @return a new GenericKeyCredential
     */
    public static GenericKeyCredential fromValue(String value) throws InvalidCredentialValueException {
      return new GenericKeyCredential((value == null) ? null : value.toCharArray());
    }
  }
  