code: /*
   * Copyright © 2014-2017 EntIT Software LLC, a Micro Focus company (L.P.)
   *
   * 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 io.cloudslang.worker.management.services;
  
  import io.cloudslang.orchestrator.entities.Message;
  
  /**
   * User: zruya
   * Date: 08/09/13
   * Time: 17:13
   */
  public interface OutboundBuffer {
  	/**
  	 * Add a collection of messages to the buffer
  	 * Thread safe
  	 *
       * @param messages collection of elements to be added
       */
  	void put(final Message... messages) throws InterruptedException;
  
  	/**
  	 * Drains the buffer
  	 * this method is called in order to drain the buffer,
  	 * it is not safe to call drain concurrently,
  	 * it is safe to call put and drain concurrently
  	 */
  	void drain();
  
  	/**
  	 * @return current amount of messages in the buffer
  	 */
  	int getSize();
  
  	/**
  	 * @return current total weight of messages in the buffer
  	 */
  	int getWeight();
  
      /**
       * @return : the capacity of the buffer
       */
      int getCapacity();
  
  	String getStatus();
  }
  