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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. 
 *
 * ====================================================================
 * Licensed 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.jclouds.vcloud.domain;

import java.util.Date;

import javax.annotation.Nullable;

import org.jclouds.vcloud.domain.internal.TaskImpl;

import com.google.inject.ImplementedBy;

/**
 * Whenever the result of a request cannot be returned immediately, the server creates a Task
 * object. Tasks owned by an object such as a vApp or vDC are contained in the Tasks element of the
 * object’s XML representation. This element is read‐only.
 */
@ImplementedBy(TaskImpl.class)
public interface Task extends ReferenceType {
   /**
    * The current status of the task.
    */
   String getOperation();

   /**
    * The current status of the task.
    */
   TaskStatus getStatus();

   /**
    * date and time when the task was started.
    */
   Date getStartTime();

   /**
    * date and time when the task completed. Does not appear for running tasks.
    */
   Date getEndTime();

   /**
    * date and time at which the task expires. By default, tasks expire 24 hours after their start
    * time. Expired tasks cannot be queried.
    */
   Date getExpiryTime();

   /**
    * A link to the object that owns the task. For copy operations, the owner is the copy that is
    * being created. For delete operations, the owner is the deleted object, so this element is not
    * included. For all other operations, the owner is the object to which the request was made.
    */
   ReferenceType getOwner();

   /**
    * error message or related information returned by the task
    */
   @Nullable
   VCloudError getError();

}