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API classes for Brooklyn

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/*
 * 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.brooklyn.api.mgmt;

import java.util.Map;
import java.util.Set;
import java.util.concurrent.Callable;
import java.util.concurrent.Executor;

import org.apache.brooklyn.api.entity.Entity;

/**
 * This is a Brooklyn extension to the Java {@link Executor}.
 * 
 * The "context" could, for example, be an {@link Entity} so that tasks executed 
 * can be annotated as executing in that context.
 */
public interface ExecutionContext extends Executor {

    /**
     * Get the tasks executed through this context (returning an immutable set).
     */
    Set> getTasks();

    /**
     * See {@link ExecutionManager#submit(Map, TaskAdaptable)} for properties that can be passed in.
     */
    Task submit(Map properties, Runnable runnable);

    /**
     * See {@link ExecutionManager#submit(Map, TaskAdaptable)} for properties that can be passed in.
     */
     Task submit(Map properties, Callable callable);

    /** {@link ExecutionManager#submit(Runnable) */
    Task submit(Runnable runnable);
 
    /** {@link ExecutionManager#submit(Callable) */
     Task submit(Callable callable);

    /** See {@link ExecutionManager#submit(Map, TaskAdaptable)}. */
     Task submit(TaskAdaptable task);
    
    /**
     * See {@link ExecutionManager#submit(Map, TaskAdaptable)} for properties that can be passed in.
     */
     Task submit(Map properties, TaskAdaptable task);

    boolean isShutdown();

}