content: /**
   * 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.apex.malhar.python;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import org.junit.Rule;
  import org.junit.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.apache.apex.api.EmbeddedAppLauncher;
  import org.apache.apex.api.Launcher;
  import org.apache.apex.malhar.lib.function.Function;
  import org.apache.apex.malhar.python.test.JepPythonTestContext;
  import org.apache.apex.malhar.python.test.PythonAvailabilityTestRule;
  import org.apache.hadoop.conf.Configuration;
  
  import com.datatorrent.api.Attribute;
  
  import static org.junit.Assert.assertEquals;
  
  public class PythonExecutorApplicationTest
  {
    private static final List<Object> results = Collections.synchronizedList(new ArrayList<>());
  
    private static final transient Logger LOG = LoggerFactory.getLogger(PythonExecutorApplicationTest.class);
  
    @Rule
    public PythonAvailabilityTestRule jepAvailabilityBasedTest = new PythonAvailabilityTestRule();
  
  
    @SuppressWarnings("serial")
    private static final Function.MapFunction<Object, Void> outputFn = new Function.MapFunction<Object, Void>()
    {
      @Override
      public Void f(Object input)
      {
        results.add(input);
        return null;
      }
    };
  
    @JepPythonTestContext(jepPythonBasedTest = true)
    @Test
    public void testApplication() throws Exception
    {
      Configuration conf = new Configuration(false);
      conf.addResource(this.getClass().getResourceAsStream("/META-INF/properties.xml"));
      EmbeddedAppLauncher<?> launcher = Launcher.getLauncher(Launcher.LaunchMode.EMBEDDED);
      Attribute.AttributeMap launchAttributes = new Attribute.AttributeMap.DefaultAttributeMap();
      launchAttributes.put(EmbeddedAppLauncher.RUN_ASYNC, true);
      PythonExecutorApplication pythonExecutorApplication = new PythonExecutorApplication();
      pythonExecutorApplication.outputFn =  outputFn;
      Launcher.AppHandle appHandle = launcher.launchApp(pythonExecutorApplication, conf, launchAttributes);
      int sleepTimeCounterForLoopExit = 0;
      int sleepTimePerIteration = 1000;
      // wait until expected result count or timeout
      while (results.size() < pythonExecutorApplication.pojoDataGenerator.getMaxTuples()) {
        sleepTimeCounterForLoopExit += sleepTimePerIteration;
        if (sleepTimeCounterForLoopExit > 30000) {
          break;
        }
        LOG.info("Test sleeping until the application time out is reached");
        Thread.sleep(sleepTimePerIteration);
      }
      appHandle.shutdown(Launcher.ShutdownMode.KILL);
      assertEquals(pythonExecutorApplication.pojoDataGenerator.getMaxTuples(), results.size());
    }
  
  }
  
  
  
  
  
  
  
  