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A thundr module enabling thundr for use on GAE (Google App Engine)

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/*
 * This file is a component of thundr, a software library from 3wks.
 * Read more: http://3wks.github.io/thundr/
 * Copyright (C) 2015 3wks, 
 *
 * 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 com.threewks.thundr.gae.job;

import java.util.UUID;

import org.joda.time.DateTime;

import com.googlecode.objectify.annotation.Entity;
import com.googlecode.objectify.annotation.Id;
import com.googlecode.objectify.annotation.Index;
import com.threewks.thundr.Experimental;

@Experimental
@Entity
public class JobStatus {
	public enum Status {
		Queued,
		QueuedForRetry,
		Running,
		Complete,
		FailedPermanently;
	}

	@Id
	private String id = UUID.randomUUID().toString();

	@Index
	private Status status = Status.Queued;

	@Index
	private int attempts = 0;

	@Index
	private int percentage = 0;

	@Index
	private DateTime lastUpdated = new DateTime();

	@Index
	private DateTime created = new DateTime();

	public JobStatus() {

	}

	public UUID getId() {
		return UUID.fromString(id);
	}

	public int getPercentage() {
		return percentage;
	}

	public Status getStatus() {
		return status;
	}

	public void incrementAttempts() {
		this.attempts += 1;
	}

	public void updateStatus(Status status) {
		this.status = status;
		this.lastUpdated = new DateTime();
	}

	public int getAttempts() {
		return attempts;
	}

	public boolean isComplete() {
		return status == Status.Complete;
	}
}