Examples of org.apache.uima.collection.CollectionReader

org.apache.uima.collection.CollectionReader
A CollectionReader is used to iterate over the elements of a Collection. Iteration is done using the {@link #hasNext()} and {@link #getNext(CAS)} methods. Each element of thecollection is returned in a {@link CAS}.
A consuming CollectionReader is one that removes each element from the collection as it is read. To find out whether a CollectionReader will consume elements in this way, call the {@link #isConsuming()} method.
Users of a CollectionReader should always {@link #close() close} it when they arefinished using it.
CollectionReaders are also {@link ConfigurableResource}s, and can be instantiated from descriptors. See {@link org.apache.uima.util.XMLParser#parseCollectionReaderDescription(XMLInputSource)} and{@link org.apache.uima.UIMAFramework#produceCollectionReader(ResourceSpecifier,Map)} for moreinformation.

          annotatorClass,
          dataWriterClass,
          additionalParameters,
          trainingArguments);
      
      CollectionReader collectionReader = evaluation.getCollectionReader(trainFiles);
      evaluation.train(collectionReader, modelsDir);
      
      // create the description
      AnalysisEngineDescription relationExtractorDescription = AnalysisEngineFactory.createPrimitiveDescription(
          annotatorClass,

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    Options options = new Options();
    options.parseOptions(args);


    List<File> trainFiles = Arrays.asList(options.inputDirectory.listFiles());
    CollectionReader collectionReader = getCollectionReader(trainFiles);
    
    AnalysisEngine relationExtractorConsumer = AnalysisEngineFactory.createPrimitive(
        RelationExtractorConsumer.class);
        
    SimplePipeline.runPipeline(collectionReader, relationExtractorConsumer);

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    //add Collection Reader if specified
    if (collectionReaderDescriptor != null) {
      CollectionReaderDescription collectionReaderDescription = UIMAFramework.getXMLParser()
              .parseCollectionReaderDescription(new XMLInputSource(collectionReaderDescriptor));
  
      CollectionReader collectionReader = UIMAFramework
              .produceCollectionReader(collectionReaderDescription);


      uimaEEEngine.setCollectionReader(collectionReader);
    }
    uimaEEEngine.addStatusCallbackListener(new StatusCallbackListenerImpl());

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    // add Collection Reader if specified
    if (collectionReaderDescriptor != null) {
      CollectionReaderDescription collectionReaderDescription = UIMAFramework.getXMLParser()
              .parseCollectionReaderDescription(new XMLInputSource(collectionReaderDescriptor));


      CollectionReader collectionReader = UIMAFramework
              .produceCollectionReader(collectionReaderDescription);


      uimaEEEngine.setCollectionReader(collectionReader);
    }
    uimaEEEngine.addStatusCallbackListener(new StatusCallbackListenerImpl());

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                     UIMAFramework.getXMLParser()
                             .parseCollectionReaderDescription(new XMLInputSource(collectionReaderDescriptor));
             collectionReaderDescription.getCollectionReaderMetaData().
               getConfigurationParameterSettings().
                 setParameterValue("InputDirectory", relativeDataPath);
             CollectionReader collectionReader = UIMAFramework
                     .produceCollectionReader(collectionReaderDescription);
             uimaAsEngine.setCollectionReader(collectionReader);      
         } catch( Throwable e) {
           e.printStackTrace();
         }

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              + "in classloader");
    }
    File collectionReaderDescriptor = new File(filename);
    CollectionReaderDescription collectionReaderDescription = UIMAFramework.getXMLParser()
            .parseCollectionReaderDescription(new XMLInputSource(collectionReaderDescriptor));
    CollectionReader collectionReader = UIMAFramework
            .produceCollectionReader(collectionReaderDescription);
    eeUimaEngine.setCollectionReader(collectionReader);
    initialize(eeUimaEngine, appCtx);
    waitUntilInitialized();
    runCrTest(eeUimaEngine, 7);

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    {
        xmlIn = new XMLInputSource(this.pkgBrowser.getInstallationDescriptor()
                .getMainComponentDesc());
        ResourceSpecifier crSpecifier = UIMAFramework.getXMLParser().parseResourceSpecifier(xmlIn);
    
        CollectionReader cr = UIMAFramework.produceCollectionReader(crSpecifier,
                getResourceManager(this.pkgBrowser), null);
    
        // create Test status object
        TestStatus status = new TestStatus();

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    // Collection Reader
    System.out.println("Initializing Collection Reader");
    ResourceSpecifier colReaderSpecifier = UIMAFramework.getXMLParser()
            .parseCollectionReaderDescription(new XMLInputSource(args[0]));
    CollectionReader collectionReader = UIMAFramework.produceCollectionReader(colReaderSpecifier);


    // AnalysisEngine
    System.out.println("Initializing AnalysisEngine");
    ResourceSpecifier aeSpecifier = UIMAFramework.getXMLParser().parseResourceSpecifier(
            new XMLInputSource(args[1]));

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    {
        xmlIn = new XMLInputSource(this.pkgBrowser.getInstallationDescriptor()
                .getMainComponentDesc());
        ResourceSpecifier crSpecifier = UIMAFramework.getXMLParser().parseResourceSpecifier(xmlIn);
    
        CollectionReader cr = UIMAFramework.produceCollectionReader(crSpecifier,
                getResourceManager(this.pkgBrowser), null);
    
        // create Test status object
        TestStatus status = new TestStatus();

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   *          and call the other runPipeline method.
   */
  public static void runPipeline(final CollectionReaderDescription readerDesc,
          final AnalysisEngineDescription... descs) throws UIMAException, IOException {
    // Create the components
    final CollectionReader reader = createReader(readerDesc);


    try {
      // Run the pipeline
      runPipeline(reader, descs);
    } finally {

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