Examples of org.apache.uima.analysis_engine.AnalysisEngineDescription

org.apache.uima.analysis_engine.AnalysisEngineDescription
An AnalysisEngineDescription contains all of the information needed to instantiate and use an {@link org.apache.uima.analysis_engine.AnalysisEngine}.
The {@link org.apache.uima.UIMAFramework#produceAnalysisEngine(ResourceSpecifier)} factory methodis used to create an AnalysisEngine instance from a AnalysisEngineDescription. This insulates applications from knowledge of the particular AnalysisEngine implementation being used.
The AnalysisEngine Description contains the following information:
For a Primitive AnalysisEngine:
- Name of main annotator class
For an Aggregate AnalysisEngine:
- A set of Resource Specifiers that specify the component AnalysisEngines that comprise the aggregate.
- Optionally, a Resource Specifier for the FlowController component that determines routing of the CAS to the component AnalysisEngines.
For All AnalysisEngines:
- A set of Resource Specifiers that specify the external resources needed by this AnalysisEngine.
- {@link AnalysisEngineMetaData Metadata} for this AnalysisEngine - this includes thecapabilities of this AnalysisEngine, the TypeSystem used by this AnalysisEngine, and other parameters.

    while (iter.hasNext()) {
      Object current = iter.next();
      if (current instanceof ProcessingResourceMetaData) {
        mdList.add((ProcessingResourceMetaData) ((ProcessingResourceMetaData) current).clone());
      } else if (current instanceof AnalysisEngineDescription) {
        AnalysisEngineDescription aeDesc = (AnalysisEngineDescription) current;
        mdList.add((ProcessingResourceMetaData) aeDesc.getAnalysisEngineMetaData().clone());
        // expand aggregate
        if (!aeDesc.isPrimitive()) {
          Map<String, ResourceSpecifier> delegateMap;
          try {
            delegateMap = aeDesc.getAllComponentSpecifiers(aResourceManager);
          } catch (InvalidXMLException e) {
            throw new ResourceInitializationException(e);
          }
          Iterator<Map.Entry<String, ResourceSpecifier>> delIter = delegateMap.entrySet().iterator();
          while (delIter.hasNext()) {

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  }


  public void testCreateAnalysisProcessData() throws Exception {
    try {
      // create simple primitive TAE with type system and indexes
      AnalysisEngineDescription desc = new AnalysisEngineDescription_impl();
      desc.setPrimitive(true);
      desc.getMetaData().setName("Test Primitive TAE");
      desc.setAnnotatorImplementationName("org.apache.uima.analysis_engine.impl.TestAnnotator");


      TypeSystemDescription typeSystem = new TypeSystemDescription_impl();
      TypeDescription type1 = typeSystem.addType("Type1", "Test Type One",
              CAS.TYPE_NAME_ANNOTATION);
      FeatureDescription feat1 = new FeatureDescription_impl();
      feat1.setName("Feature1");
      feat1.setRangeTypeName(CAS.TYPE_NAME_INTEGER);
      type1.setFeatures(new FeatureDescription[] { feat1 });
      TypeDescription type2 = typeSystem.addType("Type2", "Test Type Two",
              CAS.TYPE_NAME_ANNOTATION);
      FeatureDescription feat2 = new FeatureDescription_impl();
      feat2.setName("Feature2");
      feat2.setRangeTypeName("EnumType");
      type2.setFeatures(new FeatureDescription[] { feat2 });
      TypeDescription enumType = typeSystem.addType("EnumType", "Test Enumerated Type",
              "uima.cas.String");
      enumType.setAllowedValues(new AllowedValue[] { new AllowedValue_impl("One", "First Value"),
          new AllowedValue_impl("Two", "Second Value") });
      desc.getAnalysisEngineMetaData().setTypeSystem(typeSystem);


      TypePriorities typePriorities = new TypePriorities_impl();
      TypePriorityList priorityList = typePriorities.addPriorityList();
      priorityList.addType("Type1");
      priorityList.addType("Type2");
      desc.getAnalysisEngineMetaData().setTypePriorities(typePriorities);


      FsIndexDescription index1 = new FsIndexDescription_impl();
      index1.setLabel("Index1");
      index1.setTypeName("Type1");
      FsIndexKeyDescription key1 = new FsIndexKeyDescription_impl();
      key1.setFeatureName("Feature1");
      key1.setComparator(FSIndexComparator.STANDARD_COMPARE);
      index1.setKeys(new FsIndexKeyDescription[] { key1 });
      FsIndexDescription index2 = new FsIndexDescription_impl();
      index2.setLabel("Index2");
      index2.setTypeName("Type2");
      index2.setKind(FsIndexDescription.KIND_SET);
      FsIndexKeyDescription key2 = new FsIndexKeyDescription_impl();
      key2.setFeatureName("Feature2");
      key2.setComparator(FSIndexComparator.REVERSE_STANDARD_COMPARE);
      index2.setKeys(new FsIndexKeyDescription[] { key2 });
      FsIndexDescription index3 = new FsIndexDescription_impl();
      index3.setLabel("Index3");
      index3.setTypeName("uima.tcas.Annotation");
      index3.setKind(FsIndexDescription.KIND_SORTED);
      FsIndexKeyDescription key3 = new FsIndexKeyDescription_impl();
      key3.setFeatureName("begin");
      key3.setComparator(FSIndexComparator.STANDARD_COMPARE);
      FsIndexKeyDescription key4 = new FsIndexKeyDescription_impl();
      key4.setTypePriority(true);
      index3.setKeys(new FsIndexKeyDescription[] { key3, key4 });
      desc.getAnalysisEngineMetaData().setFsIndexes(
              new FsIndexDescription[] { index1, index2, index3 });


      // instantiate TextAnalysisEngine
      PrimitiveAnalysisEngine_impl ae = new PrimitiveAnalysisEngine_impl();
      ae.initialize(desc, null); // this calls createAnalysisProcessData

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    try {
      // create aggregate analysis engine whose delegates each declare
      // type system, type priorities, and indexes
      XMLInputSource in = new XMLInputSource(JUnitExtension
              .getFile("TextAnalysisEngineImplTest/AggregateTaeForMergeTest.xml"));
      AnalysisEngineDescription desc = UIMAFramework.getXMLParser().parseAnalysisEngineDescription(in);
      AggregateAnalysisEngine_impl ae = new AggregateAnalysisEngine_impl();
      ae.initialize(desc, Collections.EMPTY_MAP);
      // initialize method automatically calls processDelegateAnalysisEngineMetaData()


      // test results of merge

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  }


  public void testCollectionProcessComplete() throws Exception {
    try {
      // test simple primitive TextAnalysisEngine (using TestAnnotator class)
      AnalysisEngineDescription primitiveDesc = new AnalysisEngineDescription_impl();
      primitiveDesc.setPrimitive(true);
      primitiveDesc
              .setAnnotatorImplementationName("org.apache.uima.analysis_engine.impl.TestAnnotator");
      primitiveDesc.getMetaData().setName("Test Primitive TAE");
      PrimitiveAnalysisEngine_impl ae = new PrimitiveAnalysisEngine_impl();
      ae.initialize(primitiveDesc, null);
      ae.collectionProcessComplete(new ProcessTrace_impl());


      // test simple aggregate TextAnalysisEngine (again using TestAnnotator class)
      AnalysisEngineDescription aggDesc = new AnalysisEngineDescription_impl();
      aggDesc.setPrimitive(false);
      aggDesc.getMetaData().setName("Test Aggregate TAE");
      aggDesc.getDelegateAnalysisEngineSpecifiersWithImports().put("Test", primitiveDesc);
      FixedFlow_impl flow = new FixedFlow_impl();
      aggDesc.getAnalysisEngineMetaData().setFlowConstraints(flow);
      AggregateAnalysisEngine_impl aggAe = new AggregateAnalysisEngine_impl();
      aggAe.initialize(aggDesc, null);
      aggAe.collectionProcessComplete(new ProcessTrace_impl());
      
      //test that fixedFlow order is used
      File descFile = JUnitExtension.getFile("TextAnalysisEngineImplTest/AggregateForCollectionProcessCompleteTest.xml");
      AnalysisEngineDescription cpcTestDesc = UIMAFramework.getXMLParser().parseAnalysisEngineDescription(new XMLInputSource(descFile));
      AnalysisEngine cpcTestAe = UIMAFramework.produceAnalysisEngine(cpcTestDesc);
      cpcTestAe.collectionProcessComplete();
      assertEquals("One", AnnotatorForCollectionProcessCompleteTest.lastValue);
    } catch (Exception e) {
      JUnitExtension.handleException(e);

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  }


  public void testBatchProcessComplete() throws Exception {
    try {
      // test simple primitive TextAnalysisEngine (using TestAnnotator class)
      AnalysisEngineDescription primitiveDesc = new AnalysisEngineDescription_impl();
      primitiveDesc.setPrimitive(true);
      primitiveDesc
              .setAnnotatorImplementationName("org.apache.uima.analysis_engine.impl.TestAnnotator");
      primitiveDesc.getMetaData().setName("Test Primitive TAE");
      PrimitiveAnalysisEngine_impl ae = new PrimitiveAnalysisEngine_impl();
      ae.initialize(primitiveDesc, null);
      ae.batchProcessComplete(new ProcessTrace_impl());


      // test simple aggregate TextAnalysisEngine (again using TestAnnotator class)
      AnalysisEngineDescription aggDesc = new AnalysisEngineDescription_impl();
      aggDesc.setPrimitive(false);
      aggDesc.getMetaData().setName("Test Aggregate TAE");
      aggDesc.getDelegateAnalysisEngineSpecifiersWithImports().put("Test", primitiveDesc);
      FixedFlow_impl flow = new FixedFlow_impl();
      flow.setFixedFlow(new String[] { "Test" });
      aggDesc.getAnalysisEngineMetaData().setFlowConstraints(flow);
      AggregateAnalysisEngine_impl aggAe = new AggregateAnalysisEngine_impl();
      aggAe.initialize(aggDesc, null);
      aggAe.batchProcessComplete(new ProcessTrace_impl());
    } catch (Exception e) {
      JUnitExtension.handleException(e);

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    }
  }


  public void testTypeSystemInit() throws Exception {
    try {
      AnalysisEngineDescription aggWithCcDesc = UIMAFramework.getXMLParser().parseAnalysisEngineDescription(
              new XMLInputSource(JUnitExtension
                      .getFile("TextAnalysisEngineImplTest/AggregateTaeWithCasConsumer.xml")));
      AggregateAnalysisEngine_impl aggAe = new AggregateAnalysisEngine_impl();
      aggAe.initialize(aggWithCcDesc, null);
      CAS tcas = aggAe.newCAS();

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  }


  public void testProcessAndOutputNewCASes() throws Exception {
    try {
      // primitive
      AnalysisEngineDescription segmenterDesc = UIMAFramework.getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(JUnitExtension
                              .getFile("TextAnalysisEngineImplTest/NewlineSegmenter.xml")));
      AnalysisEngine ae = UIMAFramework.produceAnalysisEngine(segmenterDesc);
      CAS cas = ae.newCAS();
      cas.setDocumentText("Line one\nLine two\nLine three");
      CasIterator iter = ae.processAndOutputNewCASes(cas);
      assertTrue(iter.hasNext());
      CAS outCas = iter.next();
      assertEquals("Line one", outCas.getDocumentText());
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line two", outCas.getDocumentText());
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line three", outCas.getDocumentText());
      outCas.release();
      assertFalse(iter.hasNext());


      // aggregate
      AnalysisEngineDescription aggSegDesc = UIMAFramework.getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(JUnitExtension
                              .getFile("TextAnalysisEngineImplTest/AggregateWithSegmenter.xml")));
      ae = UIMAFramework.produceAnalysisEngine(aggSegDesc);
      cas = ae.newCAS();
      cas.setDocumentText("Line one\nLine two\nLine three");
      iter = ae.processAndOutputNewCASes(cas);
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line one", outCas.getDocumentText());
      assertEquals("Line one", TestAnnotator.lastDocument);
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line two", outCas.getDocumentText());
      assertEquals("Line two", TestAnnotator.lastDocument);
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line three", outCas.getDocumentText());
      assertEquals("Line three", TestAnnotator.lastDocument);
      outCas.release();
      assertFalse(iter.hasNext());
      // Annotator should NOT get the original CAS according to the default flow
      assertEquals("Line three", TestAnnotator.lastDocument);


      // nested aggregate
      AnalysisEngineDescription nestedAggSegDesc = UIMAFramework
              .getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(
                              JUnitExtension
                                      .getFile("TextAnalysisEngineImplTest/AggregateContainingAggregateSegmenter.xml")));
      ae = UIMAFramework.produceAnalysisEngine(nestedAggSegDesc);
      cas = ae.newCAS();
      cas.setDocumentText("Line one\nLine two\nLine three");
      iter = ae.processAndOutputNewCASes(cas);
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line one", outCas.getDocumentText());
      assertEquals("Line one", TestAnnotator.lastDocument);
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line two", outCas.getDocumentText());
      assertEquals("Line two", TestAnnotator.lastDocument);
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line three", outCas.getDocumentText());
      assertEquals("Line three", TestAnnotator.lastDocument);
      outCas.release();
      assertFalse(iter.hasNext());
      // Annotator should NOT get the original CAS according to the default flow
      assertEquals("Line three", TestAnnotator.lastDocument);


      // two segmenters
      AnalysisEngineDescription twoSegDesc = UIMAFramework.getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(JUnitExtension
                              .getFile("TextAnalysisEngineImplTest/AggregateWith2Segmenters.xml")));
      ae = UIMAFramework.produceAnalysisEngine(twoSegDesc);
      cas = ae.newCAS();
      cas.setDocumentText("One\tTwo\nThree\tFour");
      iter = ae.processAndOutputNewCASes(cas);
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("One", outCas.getDocumentText());
      assertEquals("One", TestAnnotator.lastDocument);
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Two", outCas.getDocumentText());
      assertEquals("Two", TestAnnotator.lastDocument);
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Three", outCas.getDocumentText());
      assertEquals("Three", TestAnnotator.lastDocument);
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Four", outCas.getDocumentText());
      assertEquals("Four", TestAnnotator.lastDocument);
      outCas.release();
      assertFalse(iter.hasNext());
      // Annotator should NOT get the original CAS according to the default flow
      assertEquals("Four", TestAnnotator.lastDocument);


      // dropping segments
      aggSegDesc = UIMAFramework.getXMLParser().parseAnalysisEngineDescription(
              new XMLInputSource(JUnitExtension
                      .getFile("TextAnalysisEngineImplTest/AggregateSegmenterForDropTest.xml")));
      ae = UIMAFramework.produceAnalysisEngine(aggSegDesc);
      cas = ae.newCAS();
      cas.setDocumentText("Line one\nDROP\nLine two\nDROP\nLine three");
      // results should be the same as the first aggregate segmenter test.
      // segmetns whose text is DROP should not be output.
      iter = ae.processAndOutputNewCASes(cas);
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line one", outCas.getDocumentText());
      assertEquals("Line one", TestAnnotator.lastDocument);
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line two", outCas.getDocumentText());
      assertEquals("Line two", TestAnnotator.lastDocument);
      outCas.release();
      assertTrue(iter.hasNext());
      outCas = iter.next();
      assertEquals("Line three", outCas.getDocumentText());
      assertEquals("Line three", TestAnnotator.lastDocument);
      outCas.release();
      assertFalse(iter.hasNext());
      // Annotator should NOT get the original CAS according to the default flow
      assertEquals("Line three", TestAnnotator.lastDocument);
      
      //with ParallelStep
      AnalysisEngineDescription desc = UIMAFramework.getXMLParser().parseAnalysisEngineDescription(
        new XMLInputSource(JUnitExtension.getFile("TextAnalysisEngineImplTest/AggregateForParallelStepCasMultiplierTest.xml")));
      ae = UIMAFramework.produceAnalysisEngine(desc);
      cas.reset();
      cas.setDocumentText("One\tTwo\nThree\tFour");
      iter = ae.processAndOutputNewCASes(cas);
      Set<String> expectedOutputs = new HashSet<String>();
      expectedOutputs.add("One");
      expectedOutputs.add("Two\nThree");
      expectedOutputs.add("Four");
      expectedOutputs.add("One\tTwo");
      expectedOutputs.add("Three\tFour");
      while (iter.hasNext()) {
        outCas = iter.next();
        assertTrue(expectedOutputs.remove(outCas.getDocumentText()));        
        outCas.release();
      }
      assertTrue(expectedOutputs.isEmpty());


      
      // test aggregate with 2 AEs sharing resource manager
      AnalysisEngineDescription aggregateSegDesc = UIMAFramework.getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(JUnitExtension
                              .getFile("TextAnalysisEngineImplTest/AggregateWithSegmenter.xml")));
      
      ResourceManager rsrcMgr = UIMAFramework.newDefaultResourceManager();

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  }


  public void testProcessAndOutputNewCASesWithError() throws Exception {
    try {
      // aggregate
      AnalysisEngineDescription aggSegDesc = UIMAFramework
              .getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(
                              JUnitExtension
                                      .getFile("TextAnalysisEngineImplTest/AggregateWithSegmenterForErrorTest.xml")));
      AnalysisEngine ae = UIMAFramework.produceAnalysisEngine(aggSegDesc);
      
      CAS cas = ae.newCAS();
      for (int i = 0; i < 2; i++) // verify we can do this more than once
      {
        FlowControllerForErrorTest.reset();
        cas.setDocumentText("Line one\nLine two\nERROR");
        CasIterator iter = ae.processAndOutputNewCASes(cas);
        assertTrue(iter.hasNext());
        CAS outCas = iter.next();
        assertEquals("Line one", outCas.getDocumentText());
        outCas.release();
        assertTrue(iter.hasNext());
        outCas = iter.next();
        assertEquals("Line two", outCas.getDocumentText());
        outCas.release();
        try {
          UIMAFramework.getLogger().setLevel(Level.OFF);  // Suppress logging of expected exception
          assertTrue(iter.hasNext());
          outCas = iter.next();
          fail(); // the above should throw an exception
        } catch (AnalysisEngineProcessException e) {
          UIMAFramework.getLogger().setLevel(Level.INFO); // Restore to apparent default of INFO
        }
        //check that FlowController was notified twice, once for the 
        //segment's flow and once for the complete document's flow
        assertEquals(2, FlowControllerForErrorTest.abortedDocuments.size());
        assertTrue(FlowControllerForErrorTest.abortedDocuments.contains("ERROR"));
        assertTrue(FlowControllerForErrorTest.abortedDocuments.contains("Line one\nLine two\nERROR"));


        cas.reset();
      }


      // nested aggregate
      AnalysisEngineDescription nestedAggSegDesc = UIMAFramework
              .getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(
                              JUnitExtension
                                      .getFile("TextAnalysisEngineImplTest/NestedAggregateSegmenterForErrorTest.xml")));
      ae = UIMAFramework.produceAnalysisEngine(nestedAggSegDesc);
      cas = ae.newCAS();
      for (int i = 0; i < 2; i++) // verify we can do this more than once
      {
        FlowControllerForErrorTest.reset();
        cas.setDocumentText("Line one\nLine two\nERROR");
        CasIterator iter = ae.processAndOutputNewCASes(cas);
        assertTrue(iter.hasNext());
        CAS outCas = iter.next();
        assertEquals("Line one", outCas.getDocumentText());
        outCas.release();
        assertTrue(iter.hasNext());
        outCas = iter.next();
        assertEquals("Line two", outCas.getDocumentText());
        outCas.release();
        try {
          UIMAFramework.getLogger().setLevel(Level.OFF);  // Suppress logging of expected exception
          assertTrue(iter.hasNext());
          outCas = iter.next();
          fail(); // the above should throw an exception
        } catch (AnalysisEngineProcessException e) {
          UIMAFramework.getLogger().setLevel(Level.INFO); // Restore to apparent default of INFO
        }
        //check that FlowController was notified three times, once for the 
        //segment's flow and twice for the complete document's flow (once
        //in each aggregate)
        assertEquals(3, FlowControllerForErrorTest.abortedDocuments.size());
        assertTrue(FlowControllerForErrorTest.abortedDocuments.contains("ERROR"));
        assertTrue(FlowControllerForErrorTest.abortedDocuments.contains("Line one\nLine two\nERROR"));
        FlowControllerForErrorTest.abortedDocuments.remove("Line one\nLine two\nERROR");
        assertTrue(FlowControllerForErrorTest.abortedDocuments.contains("Line one\nLine two\nERROR"));
        
        cas.reset();
      }


      // 2 segmenters
      AnalysisEngineDescription twoSegDesc = UIMAFramework
              .getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(
                              JUnitExtension
                                      .getFile("TextAnalysisEngineImplTest/AggregateWith2SegmentersForErrorTest.xml")));
      ae = UIMAFramework.produceAnalysisEngine(twoSegDesc);
      cas = ae.newCAS();
      for (int i = 0; i < 2; i++) // verify we can do this more than once
      {
        FlowControllerForErrorTest.abortedDocuments.clear();
        cas.setDocumentText("One\tTwo\nThree\tERROR");
        CasIterator iter = ae.processAndOutputNewCASes(cas);
        assertTrue(iter.hasNext());
        CAS outCas = iter.next();
        assertEquals("One", outCas.getDocumentText());
        outCas.release();
        assertTrue(iter.hasNext());
        outCas = iter.next();
        assertEquals("Two", outCas.getDocumentText());
        outCas.release();
        assertTrue(iter.hasNext());
        outCas = iter.next();
        assertEquals("Three", outCas.getDocumentText());
        outCas.release();
        try {
          UIMAFramework.getLogger().setLevel(Level.OFF);  // Suppress logging of expected exception
          assertTrue(iter.hasNext());
          outCas = iter.next();
          fail(); // the above should throw an exception
        } catch (AnalysisEngineProcessException e) {
          UIMAFramework.getLogger().setLevel(Level.INFO); // Restore to apparent default of INFO
        }
        //check that FlowController was notified three times, once for each level of granularity
        assertEquals(3, FlowControllerForErrorTest.abortedDocuments.size());
        assertTrue(FlowControllerForErrorTest.abortedDocuments.contains("ERROR"));
        assertTrue(FlowControllerForErrorTest.abortedDocuments.contains("Three\tERROR"));
        assertTrue(FlowControllerForErrorTest.abortedDocuments.contains("One\tTwo\nThree\tERROR"));
        
        cas.reset();
      }


      // segmenter that requests too many CASes
      AnalysisEngineDescription segmenterDesc = UIMAFramework.getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(JUnitExtension
                              .getFile("TextAnalysisEngineImplTest/BadSegmenter.xml")));
      ae = UIMAFramework.produceAnalysisEngine(segmenterDesc);
      cas = ae.newCAS();
      cas.setDocumentText("Line one\nLine two\nLine three");
      CasIterator iter = ae.processAndOutputNewCASes(cas);
      assertTrue(iter.hasNext());
      CAS outCas = iter.next(); // first call OK
      outCas.release();
      assertTrue(iter.hasNext());
      // next call should fail with AnalysisEngineProcessException
      try {
        UIMAFramework.getLogger().setLevel(Level.OFF);  // Suppress logging of expected exception
        iter.next();
        fail(); // should not get here
      } catch (AnalysisEngineProcessException e) {
        UIMAFramework.getLogger().setLevel(Level.INFO); // Restore to apparent default of INFO
      }
      
      // bad segmenter in an aggregate
      AnalysisEngineDescription aggWithBadSegmenterDesc = UIMAFramework.getXMLParser()
      .parseAnalysisEngineDescription(
              new XMLInputSource(JUnitExtension
                      .getFile("TextAnalysisEngineImplTest/AggregateWithBadSegmenterForErrorTest.xml")));
      ae = UIMAFramework.produceAnalysisEngine(aggWithBadSegmenterDesc);
      FlowControllerForErrorTest.reset();

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  }


  public void testResegment() throws Exception {
    try {
      // primitive
      AnalysisEngineDescription segmenterDesc = UIMAFramework.getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(JUnitExtension
                              .getFile("TextAnalysisEngineImplTest/NewlineResegmenter.xml")));
      AnalysisEngine ae = UIMAFramework.produceAnalysisEngine(segmenterDesc);
      CAS inputCas1 = ae.newCAS();

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  public void testProcessWithError() throws Exception {
    try {
      //This test uses an aggregate AE fails if the document text is set to "ERROR".
      AnalysisEngineDescription aeDesc = UIMAFramework.getXMLParser()
              .parseAnalysisEngineDescription(
                      new XMLInputSource(JUnitExtension.getFile("TextAnalysisEngineImplTest/AggregateForErrorTest.xml")));
      AnalysisEngine ae = UIMAFramework.produceAnalysisEngine(aeDesc);
      FlowControllerForErrorTest.reset();
      CAS cas = ae.newCAS();

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