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/*
 * Copyright 2014-2015 Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * 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.hawkular.metrics.tasks.api;

import java.util.Map;

import org.hawkular.metrics.tasks.impl.Lease;

import rx.Observable;
import rx.Subscriber;
import rx.Subscription;
import rx.functions.Action1;

/**
 * @author jsanda
 */
public interface TaskScheduler {

    Subscription subscribe(Action1 onNext);

    Subscription subscribe(Subscriber subscriber);

    Observable getTasks();

    Observable start();

//    Observable createTask(String name, Map parameters, Trigger trigger);

    Observable scheduleTask(String name, String groupKey, int executionOrder, Map parameters,
            Trigger trigger);

    void shutdown();

    Observable getFinishedTimeSlices();

    boolean isRunning();

}