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PearMergerTest.java

/*
 * 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.uima.tools.pear.merger;

import java.io.File;
import java.io.FileNotFoundException;

import junit.framework.Assert;
import junit.framework.TestCase;

import org.apache.uima.UIMAFramework;
import org.apache.uima.analysis_engine.AnalysisEngine;
import org.apache.uima.analysis_engine.AnalysisEngineDescription;
import org.apache.uima.cas.CAS;
import org.apache.uima.pear.tools.InstallationController;
import org.apache.uima.pear.tools.InstallationDescriptor;
import org.apache.uima.pear.util.FileUtil;
import org.apache.uima.resource.ResourceManager;
import org.apache.uima.test.junit_extension.JUnitExtension;
import org.apache.uima.util.XMLInputSource;
import org.apache.uima.util.XMLParser;

/**
 * The <code>PearMergerTest</code> class provides JUnit test cases for the jedii_pear_merger
 * component. The test cases are based on the sample input PEARs located in the
 * 'pearTests/pearMergerTests' folder.
 * 
 */
00046 public class PearMergerTest extends TestCase {
  // relative location of sample PEARs
  private static String TEST_FOLDER = "pearTests/pearMergerTests";

  // sample input PEAR files
  private static String INP_PEAR_1_FILE = "uima.example.DateTime.pear";

  private static String INP_PEAR_2_FILE = "uima.example.RoomNumber.pear";

  // output aggregate PEAR file
  private static String OUT_PEAR_ID = "uima.example.RoomDateTimeAggregate";

  // Temporary working directory
  private File _tempWorkingDir = null;

  /**
   * @see junit.framework.TestCase#setUp()
   */
00064   protected void setUp() throws Exception {
    
    // create temporary working directory
    File tempFile = File.createTempFile("pear_merger_test_", "tmp");
    if (tempFile.delete()) {
      File tempDir = tempFile;
      if (tempDir.mkdirs())
        _tempWorkingDir = tempDir;
    }
  }

  /**
   * @see junit.framework.TestCase#tearDown()
   */
00078   protected void tearDown() throws Exception {
    if (_tempWorkingDir != null) {
      FileUtil.deleteDirectory(_tempWorkingDir);
    }
  }
  
  /**
   * Runs test for org.apache.uima.pear.merger.PMController class by merging 2 sample input PEARs
   * into the output aggregate PEAR. Then, the output PEAR is installed by using
   * org.apache.uima.pear.tools.InstallationController, and the installed component is verified by
   * instantiating the aggregate TAE and creating CAS object.
   * 
   * @throws Exception
   */
00092   public void testPearMerger() throws Exception {
    // check temporary working directory
    if (_tempWorkingDir == null)
      throw new FileNotFoundException("temp directory not found");
    // check sample PEAR files
    File[] inpPearFiles = new File[2];
    inpPearFiles[0] = JUnitExtension.getFile(TEST_FOLDER + File.separator + INP_PEAR_1_FILE);
    if (!inpPearFiles[0].isFile())
      throw new FileNotFoundException("sample PEAR 1 not found");
    inpPearFiles[1] = JUnitExtension.getFile(TEST_FOLDER + File.separator + INP_PEAR_2_FILE);
    if (!inpPearFiles[1].isFile())
      throw new FileNotFoundException("sample PEAR 2 not found");
    // specify output aggregate PEAR file
    File outPearFile = new File(_tempWorkingDir, OUT_PEAR_ID + ".pear");
    // create PMController instance and perform merging operation
    PMController.setLogFileEnabled(false);
    PMController pmController = new PMController(inpPearFiles, OUT_PEAR_ID, outPearFile);
    boolean done = pmController.mergePears();
    // check merging results
    Assert.assertTrue(done);
    Assert.assertTrue(outPearFile.isFile());
    // install the output PEAR file and check the results
    InstallationController insController = new InstallationController(OUT_PEAR_ID, outPearFile,
            _tempWorkingDir);
    InstallationDescriptor insDesc = insController.installComponent();
    Assert.assertTrue(insDesc != null);
    Assert.assertTrue(OUT_PEAR_ID.equals(insDesc.getMainComponentId()));
    // verify the installed component
    // customize ResourceManager by adding component CLASSPATH
    ResourceManager resMngr = UIMAFramework.newDefaultResourceManager();
    String compClassPath = InstallationController.buildComponentClassPath(insDesc
            .getMainComponentRoot(), insDesc, false);
    // instantiate the aggregate AE
    resMngr.setExtensionClassPath(compClassPath, true);
    String compDescFilePath = insDesc.getMainComponentDesc();
    XMLParser xmlPaser = UIMAFramework.getXMLParser();
    XMLInputSource xmlInput = new XMLInputSource(compDescFilePath);
    AnalysisEngineDescription aeSpec = xmlPaser.parseAnalysisEngineDescription(xmlInput);
    AnalysisEngine ae = UIMAFramework.produceAnalysisEngine(aeSpec, resMngr, null);
    Assert.assertTrue(ae != null);
    // create CAS object
    CAS cas = ae.newCAS();
    Assert.assertTrue(cas != null);
    
    //process CAS
    cas.setDocumentText("Sample text for testing");
    ae.process(cas);
    
    // clean-up the results
    pmController.cleanUp();
  }
}

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