/*
 * The contents of this file are subject to the terms of the Common Development and
 * Distribution License (the License). You may not use this file except in compliance with the
 * License.
 *
 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
 * specific language governing permission and limitations under the License.
 *
 * When distributing Covered Software, include this CDDL Header Notice in each file and include
 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
 * Header, with the fields enclosed by brackets [] replaced by your own identifying
 * information: "Portions Copyright [year] [name of copyright owner]".
 *
 * Copyright 2008 Sun Microsystems, Inc.
 * Portions Copyright 2014-2015 ForgeRock AS.
 */
package org.opends.server.admin;
import org.forgerock.i18n.LocalizableMessage;



import java.util.Locale;
import java.util.MissingResourceException;



/**
 * Defines an optional action which administators must perform after
 * they have modified a property. By default modifications to
 * properties are assumed to take effect immediately and require no
 * additional administrative action. Developers should be aware that,
 * where feasible, they should implement components such that property
 * modifications require no additional administrative action. This is
 * required in order to minimize server downtime during administration
 * and provide a more user-friendly experience.
 */
public final class AdministratorAction {

  /**
   * Specifies the type of administrator action which must be
   * performed in order for pending changes to take effect.
   */
  public static enum Type {
    /**
     * Used when modifications to a property require a component
     * restart in order to take effect (usually by disabling and
     * re-enabling the component). May have a description describing
     * any additional administrator action that is required when the
     * component is restarted.
     */
    COMPONENT_RESTART("component-restart"),

    /**
     * Used when modifications to a property take effect immediately,
     * and no additional administrator action is required. May have a
     * description describing how changes to the modified property
     * will take effect.
     */
    NONE("none"),

    /**
     * Used when modifications to a property require an additional
     * administrative action in order to take effect. This should be
     * used when neither a server restart nor a component restart are
     * applicable. Always has a description which describes the
     * additional administrator action which is required when the
     * property is modified.
     */
    OTHER("other"),

    /**
     * Used when modifications to a property require a server restart
     * in order to take effect. May have a description describing any
     * additional administrator action that is required when the
     * component is restarted.
     */
    SERVER_RESTART("server-restart");

    /** The user-friendly name of the type. */
    private final String name;



    /** Private constructor. */
    private Type(String name) {
      this.name = name;
    }



    /** {@inheritDoc} */
    @Override
    public String toString() {
      return name;
    }

  }

  /**
   * The managed object definition associated with this administrator
   * action.
   */
  private final AbstractManagedObjectDefinition<?, ?> definition;

  /**
   * The name of the property definition associated with this
   * administrator action.
   */
  private final String propertyName;

  /** The type of administration action. */
  private final Type type;



  /**
   * Create a new administrator action.
   *
   * @param type
   *          The type of this administration action.
   * @param d
   *          The managed object definition associated with this
   *          administrator action.
   * @param propertyName
   *          The name of the property definition associated with this
   *          administrator action.
   */
  public AdministratorAction(Type type,
      AbstractManagedObjectDefinition<?, ?> d, String propertyName) {
    this.type = type;
    this.definition = d;
    this.propertyName = propertyName;
  }



  /**
   * Gets the synopsis of this administrator action in the default
   * locale.
   *
   * @return Returns the synopsis of this administrator action in the
   *         default locale, or <code>null</code> if there is no
   *         synopsis defined.
   */
  public final LocalizableMessage getSynopsis() {
    return getSynopsis(Locale.getDefault());
  }



  /**
   * Gets the synopsis of this administrator action in the specified
   * locale.
   *
   * @param locale
   *          The locale.
   * @return Returns the synopsis of this administrator action in the
   *         specified locale, or <code>null</code> if there is no
   *         synopsis defined.
   */
  public final LocalizableMessage getSynopsis(Locale locale) {
    ManagedObjectDefinitionI18NResource resource =
      ManagedObjectDefinitionI18NResource.getInstance();
    String property = "property." + propertyName
        + ".requires-admin-action.synopsis";
    try {
      return resource.getMessage(definition, property, locale);
    } catch (MissingResourceException e) {
      return null;
    }
  }



  /**
   * Gets the type of this administrator action.
   *
   * @return Returns the type of this administrator action.
   */
  public final Type getType() {
    return type;
  }
}