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;
  
  import io.cloudslang.dependency.impl.services.DependenciesManagementConfiguration;
  import io.cloudslang.runtime.api.python.PythonRuntimeService;
  import io.cloudslang.runtime.impl.python.executor.services.ExternalPythonExecutorServiceImpl;
  import io.cloudslang.runtime.impl.python.external.ExternalPythonExecutionEngine;
  import io.cloudslang.runtime.impl.python.external.ExternalPythonRuntimeServiceImpl;
  import org.apache.commons.lang3.StringUtils;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.ComponentScan;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.context.annotation.Import;
  
  import java.util.concurrent.Semaphore;
  
  import static io.cloudslang.runtime.impl.python.PythonExecutionConfigurationConsts.PYTHON_EXECUTOR_ENGINE;
  
  /**
   * Created by Genadi Rabinovich, genadi@hpe.com on 05/05/2016.
   */
  @Configuration
  @ComponentScan("io.cloudslang.runtime.impl.python")
  @Import({DependenciesManagementConfiguration.class})
  public class PythonExecutionEngineConfiguration {
  
      @Bean(name = "jythonRuntimeService")
      public PythonRuntimeService pythonRuntimeService() {
          return new PythonRuntimeServiceImpl();
      }
  
      @Bean(name = "externalPythonRuntimeService")
      public PythonRuntimeService externalPythonRuntimeService() {
          Integer pythonProcessPermits = Integer.getInteger("python.concurrent.execution.permits", 30);
          Integer pythonTestingProcessPermits = Integer.getInteger("python.testing.concurrent.execution.permits", 10);
          return new ExternalPythonRuntimeServiceImpl(new Semaphore(pythonProcessPermits), new Semaphore(pythonTestingProcessPermits));
      }
  
      @Bean(name = "externalPythonExecutorService")
      public PythonRuntimeService externalPythonExecutorService() {
          Integer pythonProcessPermits = Integer.getInteger("python.concurrent.execution.permits", 30);
          Integer pythonTestingProcessPermits = Integer.getInteger("python.testing.concurrent.execution.permits", 10);
          return new ExternalPythonExecutorServiceImpl(new Semaphore(pythonProcessPermits), new Semaphore(pythonTestingProcessPermits));
      }
  
      @Bean(name = "jythonExecutionEngine")
      PythonExecutionEngine pythonExecutionEngine() {
          String pooledAndCachedEngine = PythonExecutionPooledAndCachedEngine.class.getSimpleName();
          String cacheEngine = PythonExecutionCachedEngine.class.getSimpleName();
          String simpleEngine = PythonExecutionNotCachedEngine.class.getSimpleName();
  
          String value = System.getProperty(PYTHON_EXECUTOR_ENGINE, pooledAndCachedEngine);
  
          if (StringUtils.equalsIgnoreCase(value, pooledAndCachedEngine)) {
              return new PythonExecutionPooledAndCachedEngine();
          } else if (StringUtils.equalsIgnoreCase(value, cacheEngine)) {
              return new PythonExecutionCachedEngine();
          } else if (StringUtils.equalsIgnoreCase(value, simpleEngine)) {
              return new PythonExecutionNotCachedEngine();
          } else {
              return new PythonExecutionPooledAndCachedEngine();
          }
      }
  
      @Bean(name = "externalPythonExecutionEngine")
      PythonExecutionEngine externalPythonExecutionEngine() {
          return new ExternalPythonExecutionEngine();
      }
  
  
  }
  