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    1   /*
    2    *  Licensed to the Apache Software Foundation (ASF) under one
    3    *  or more contributor license agreements.  See the NOTICE file
    4    *  distributed with this work for additional information
    5    *  regarding copyright ownership.  The ASF licenses this file
    6    *  to you under the Apache License, Version 2.0 (the
    7    *  "License"); you may not use this file except in compliance
    8    *  with the License.  You may obtain a copy of the License at
    9    *
   10    *   http://www.apache.org/licenses/LICENSE-2.0
   11    *
   12    *  Unless required by applicable law or agreed to in writing,
   13    *  software distributed under the License is distributed on an
   14    *   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   15    *  KIND, either express or implied.  See the License for the
   16    *  specific language governing permissions and limitations
   17    *  under the License.
   18    */
   19   
   20   package org.apache.synapse.transport.base.threads;
   21   
   22   public interface WorkerPool {
   23       public void execute(Runnable task);
   24       public int getActiveCount();
   25       public int getQueueSize();
   26       
   27       /**
   28        * Destroy the worker pool. The pool will immediately stop
   29        * accepting new tasks. All previously submitted tasks will
   30        * be executed. The method blocks until all tasks have
   31        * completed execution, or the timeout occurs, or the current
   32        * thread is interrupted, whichever happens first.
   33        * 
   34        * @param timeout the timeout value in milliseconds
   35        * @throws InterruptedException if the current thread was
   36        *         interrupted while waiting for pending tasks to
   37        *         finish execution
   38        */
   39       public void shutdown(int timeout) throws InterruptedException;
   40   }

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