/*
 * 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.sling.distribution.queue.impl;

import org.apache.sling.distribution.queue.DistributionQueueItem;
import org.apache.sling.distribution.queue.DistributionQueueItemStatus;
import org.apache.sling.distribution.queue.DistributionQueueState;

/**
 * Utility methods for queues.
 */
public class DistributionQueueUtils {

    /**
     * Calculate the {@link DistributionQueueState} of an item given its status.
     * @param item a queue item
     * @param status an item status
     * @return a queue item state
     */
    public static DistributionQueueState calculateState(DistributionQueueItem item, DistributionQueueItemStatus status) {
        if (item != null && status != null) {

            int attempts = status.getAttempts();

            if (attempts > 0) {
                return DistributionQueueState.BLOCKED;
            } else {
                return DistributionQueueState.RUNNING;
            }
        } else {
            return DistributionQueueState.IDLE;
        }
    }
}