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.controller.internal;
  
  import org.apache.ambari.server.configuration.AmbariServerConfigurationCategory;
  import org.apache.ambari.server.configuration.AmbariServerConfigurationKey;
  import org.apache.ambari.server.configuration.ConfigurationPropertyType;
  
  /**
   * Provides useful utility methods for AMBARI-level configuration related tasks.
   */
  public class AmbariServerConfigurationUtils {
  
    /**
     * Returns the relevant {@link AmbariServerConfigurationKey}
     *
     * @param category     the name of the category
     * @param propertyName the name of the property
     * @return the {@link AmbariServerConfigurationKey representing the given category/property if such category/property
     * exists; {@code null} otherwise
     */
    public static AmbariServerConfigurationKey getConfigurationKey(String category, String propertyName) {
      return getConfigurationKey(AmbariServerConfigurationCategory.translate(category), propertyName);
    }
  
    /**
     * Returns the relevant {@link AmbariServerConfigurationKey}
     *
     * @param category     the {@link AmbariServerConfigurationCategory}
     * @param propertyName the name of the property
     * @return the {@link AmbariServerConfigurationKey representing the given category/property if such category/property
     * exists; {@code null} otherwise
     */
    public static AmbariServerConfigurationKey getConfigurationKey(AmbariServerConfigurationCategory category, String propertyName) {
      return AmbariServerConfigurationKey.translate(category, propertyName);
    }
  
    /**
     * Returns the {@link ConfigurationPropertyType} for the specified Ambari Server configuration property
     *
     * @param category     the name of the category
     * @param propertyName the name of the property
     * @return the type of the given category/property if such category/property
     * exists; {@link ConfigurationPropertyType#UNKNOWN} otherwise
     */
    public static ConfigurationPropertyType getConfigurationPropertyType(String category, String propertyName) {
      return getConfigurationPropertyType(getConfigurationKey(category, propertyName));
    }
  
    /**
     * Returns the {@link ConfigurationPropertyType} for the specified Ambari Server configuration property
     *
     * @param category     the category
     * @param propertyName the name of the property
     * @return the type of the given category/property if such category/property
     * exists; {@link ConfigurationPropertyType#UNKNOWN} otherwise
     */
    public static ConfigurationPropertyType getConfigurationPropertyType(AmbariServerConfigurationCategory category, String propertyName) {
      return getConfigurationPropertyType(getConfigurationKey(category, propertyName));
    }
  
    /**
     * Returns the {@link ConfigurationPropertyType} for the specified Ambari Server configuration property
     *
     * @param configurationKey a {@link AmbariServerConfigurationKey}
     * @return the type of the given category/property if such category/property
     * exists; {@link ConfigurationPropertyType#UNKNOWN} otherwise
     */
    private static ConfigurationPropertyType getConfigurationPropertyType(AmbariServerConfigurationKey configurationKey) {
      return (configurationKey == null) ? ConfigurationPropertyType.UNKNOWN : configurationKey.getConfigurationPropertyType();
    }
  
    /**
     * @param category     the name of the category
     * @param propertyName the name of the property
     * @return the String representation of the type if such category/property
     * exists; {@code null} otherwise
     */
    public static String getConfigurationPropertyTypeName(AmbariServerConfigurationCategory category, String propertyName) {
      final ConfigurationPropertyType configurationPropertyType = getConfigurationPropertyType(category, propertyName);
      return configurationPropertyType == null ? null : configurationPropertyType.name();
    }
  
    /**
     * @param category     the name of the category
     * @param propertyName the name of the property
     * @return the String representation of the type if such category/property
     * exists; {@code null} otherwise
     */
    public static String getConfigurationPropertyTypeName(String category, String propertyName) {
      final ConfigurationPropertyType configurationPropertyType = getConfigurationPropertyType(category, propertyName);
      return configurationPropertyType == null ? null : configurationPropertyType.name();
    }
  
    /**
     * Indicates whether the given property's type is a {@link ConfigurationPropertyType#PASSWORD}
     *
     * @param category     the name of the category
     * @param propertyName the name of the property
     * @return {@code true} in case the given property's type is
     * {@link ConfigurationPropertyType#PASSWORD}; {@code false} otherwise
     */
    public static boolean isPassword(String category, String propertyName) {
      return isPassword(getConfigurationKey(category, propertyName));
    }
  
    /**
     * Indicates whether the given property's type is a {@link ConfigurationPropertyType#PASSWORD}
     *
     * @param category     the name of the category
     * @param propertyName the name of the property
     * @return {@code true} in case the given property's type is
     * {@link ConfigurationPropertyType#PASSWORD}; {@code false} otherwise
     */
    public static boolean isPassword(AmbariServerConfigurationCategory category, String propertyName) {
      return isPassword(getConfigurationKey(category, propertyName));
    }
  
    /**
     * Indicates whether the given property's type is a {@link ConfigurationPropertyType#PASSWORD}
     *
     * @param configurationKey the Ambari Server configiration key
     * @return {@code true} in case the given property's type is
     * {@link ConfigurationPropertyType#PASSWORD}; {@code false} otherwise
     */
    public static boolean isPassword(AmbariServerConfigurationKey configurationKey) {
      return ConfigurationPropertyType.PASSWORD.equals(getConfigurationPropertyType(configurationKey));
    }
  }
  