Examples of org.apache.lucene.store.MockRAMDirectory.failOn()

Class org.apache.lucene.store.MockRAMDirectory

Examples of org.apache.lucene.store.MockRAMDirectory.failOn()

org.apache.lucene.store.MockRAMDirectory.failOn()
add a Failure object to the list of objects to be evaluated at every potential failure point

  // we are hitting exceptions during flushing.
  public void testFlushExceptions() throws IOException {


    MockRAMDirectory directory = new MockRAMDirectory();
    FailOnlyOnFlush failure = new FailOnlyOnFlush();
    directory.failOn(failure);


    IndexWriter writer = new IndexWriter(directory, ANALYZER, true, IndexWriter.MaxFieldLength.UNLIMITED);
    ConcurrentMergeScheduler cms = new ConcurrentMergeScheduler();
    writer.setMergeScheduler(cms);
    writer.setMaxBufferedDocs(2);

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    }
  }


  public void testSubclassConcurrentMergeScheduler() throws IOException {
    MockRAMDirectory dir = new MockRAMDirectory();
    dir.failOn(new FailOnlyOnMerge());


    Document doc = new Document();
    Field idField = new Field("id", "", Field.Store.YES, Field.Index.NOT_ANALYZED);
    doc.add(idField);

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  // LUCENE-1044: test exception during sync
  public void testExceptionDuringSync() throws IOException {
    MockRAMDirectory dir = new MockRAMDirectory();
    FailOnlyInSync failure = new FailOnlyInSync();
    dir.failOn(failure);


    IndexWriter writer  = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
    failure.setDoFail();


    ConcurrentMergeScheduler cms = new ConcurrentMergeScheduler();

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    IndexWriter w = new IndexWriter(dir, new WhitespaceAnalyzer(), true, IndexWriter.MaxFieldLength.UNLIMITED);
    Document doc = new Document();
    doc.add(new Field("field", "a field", Field.Store.YES,
                      Field.Index.ANALYZED));
    w.addDocument(doc);
    dir.failOn(failure);
    try {
      w.close();
      fail();
    } catch (IOException ioe) {
      fail("expected only RuntimeException");

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  // one segment only takes out those docs in that one flush
  public void testDocumentsWriterAbort() throws IOException {
    MockRAMDirectory dir = new MockRAMDirectory();
    FailOnlyOnFlush failure = new FailOnlyOnFlush();
    failure.setDoFail();
    dir.failOn(failure);


    IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
    writer.setMaxBufferedDocs(2);
    Document doc = new Document();
    String contents = "aa bb cc dd ee ff gg hh ii jj kk";

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    doc.add(new Field("field", "aaa bbb ccc ddd eee fff ggg hhh iii jjj", Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS));


    for(int i=0;i<6;i++)
      writer.addDocument(doc);


    dir.failOn(failure);
    failure.setDoFail();
    try {
      writer.addDocument(doc);
      writer.addDocument(doc);
      writer.commit();

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      for(int i=0;i<NUM_THREADS;i++)
        threads[i].start();


      Thread.sleep(10);


      dir.failOn(failure);
      failure.setDoFail();


      for(int i=0;i<NUM_THREADS;i++) {
        threads[i].join();
        assertTrue("hit unexpected Throwable", threads[i].error == null);

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  // one segment only takes out those docs in that one flush
  public void testDocumentsWriterAbort() throws IOException {
    MockRAMDirectory dir = new MockRAMDirectory();
    FailOnlyOnFlush failure = new FailOnlyOnFlush();
    failure.setDoFail();
    dir.failOn(failure);


    IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
    writer.setMaxBufferedDocs(2);
    Document doc = new Document();
    String contents = "aa bb cc dd ee ff gg hh ii jj kk";

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    doc.add(new Field("field", "aaa bbb ccc ddd eee fff ggg hhh iii jjj", Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS));


    for(int i=0;i<6;i++)
      writer.addDocument(doc);


    dir.failOn(failure);
    failure.setDoFail();
    try {
      writer.addDocument(doc);
      writer.addDocument(doc);
      fail("did not hit exception");

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      for(int i=0;i<NUM_THREADS;i++)
        threads[i].start();


      Thread.sleep(10);


      dir.failOn(failure);
      failure.setDoFail();


      for(int i=0;i<NUM_THREADS;i++) {
        threads[i].join();
        assertTrue("hit unexpected Throwable", threads[i].error == null);

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