ambari-infra-manager/src/main/java/org/apache/ambari/infra/conf/security/HadoopCredential.java

/*
 * 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.infra.conf.security;

import java.util.Optional;

public class HadoopCredential implements Secret {

  private final HadoopCredentialStore hadoopCredentialStore;
  private final String propertyName;

  public HadoopCredential(HadoopCredentialStore hadoopCredentialStore, String propertyName) {
    this.propertyName = propertyName;
    this.hadoopCredentialStore = hadoopCredentialStore;
  }

  @Override
  public Optional<String> get() {
    if (hadoopCredentialStore == null) {
      return Optional.empty();
    }

    return hadoopCredentialStore.get(propertyName).map(String::new);
  }
}