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.runtime.impl.python.pool;
  
  
  import io.cloudslang.runtime.impl.python.EmbeddedPythonExecutorWrapper;
  import org.vibur.objectpool.ConcurrentPool;
  import org.vibur.objectpool.util.ConcurrentLinkedQueueCollection;
  
  import static java.lang.Long.getLong;
  import static java.util.concurrent.TimeUnit.SECONDS;
  
  public class ViburEmbeddedPythonPoolServiceImpl implements ViburEmbeddedPythonPoolService {
  
      private final ConcurrentPool<EmbeddedPythonExecutorWrapper> poolService;
      private final long timeout;
  
      public ViburEmbeddedPythonPoolServiceImpl(ConcurrentLinkedQueueCollection<EmbeddedPythonExecutorWrapper> collection,
                                                int minPoolSize, int maxPoolSize) {
  
          this.poolService = new ConcurrentPool<>(collection,
                  new ViburEmbeddedPythonFactory(),
                  minPoolSize,
                  maxPoolSize,
                  false);
          this.timeout = getLong("jython.executor.checkoutTimeoutSeconds", 3 * 60 * 60L); // 3 hours
      }
  
      @Override
      public EmbeddedPythonExecutorWrapper tryTakeWithTimeout() {
          return poolService.tryTake(timeout, SECONDS);
      }
  
      @Override
      public void restore(EmbeddedPythonExecutorWrapper pooledObject) {
          poolService.restore(pooledObject);
      }
  
      @Override
      public void close() {
          try {
              poolService.close();
          } catch (Exception ignored) {
          }
      }
  }
  