scheduler/core/src/main/java/org/apache/karaf/scheduler/core/TaskScheduler.java

/*
 * 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.karaf.scheduler.core;

import java.util.Map;
import java.util.Timer;
import java.util.concurrent.ConcurrentHashMap;

public class TaskScheduler {

    private final Timer timer = new Timer();
    private final Map<String,KarafTimerTask> tasks = new ConcurrentHashMap<String, KarafTimerTask>();

    /**
     * Schedule a {@link KarafTimerTask}
     * @param task
     */
    public void schedule(KarafTimerTask task) {
        if(task != null) {
            tasks.put(task.getId(),task);
            timer.schedule(task,0,task.getSchedulePeriod());
        }

    }

    /**
     * Unschedule a {@link KarafTimerTask}
     * @param id The id of the task to unschedule.
     */
    public void unschedule(String id) {
        if(id != null) {
            KarafTimerTask task = tasks.remove(id);
            if(task != null) {
                task.cancel();
            }
        }
    }

}