Examples of InfoStream

org.apache.lucene.util.InfoStream
Debugging API for Lucene classes such as {@link IndexWriter} and {@link SegmentInfos}.
NOTE: Enabling infostreams may cause performance degradation in some components. @lucene.internal

Examples of org.apache.lucene.util.InfoStream

  public void testOutOfMemoryErrorCausesCloseToFail() throws Exception {


    final AtomicBoolean thrown = new AtomicBoolean(false);
    final Directory dir = newDirectory();
    final IndexWriter writer = new IndexWriter(dir,
        newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random())).setInfoStream(new InfoStream() {
        @Override
        public void message(String component, final String message) {
          if (message.startsWith("now flush at close") && thrown.compareAndSet(false, true)) {
            throw new OutOfMemoryError("fake OOME at " + message);
          }

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Examples of org.apache.lucene.util.InfoStream

  }
  
  public void testSimpleMergedSegmentWramer() throws Exception {
    Directory dir = newDirectory();
    final AtomicBoolean didWarm = new AtomicBoolean();
    InfoStream infoStream = new InfoStream() {
      @Override
      public void close() throws IOException {}


      @Override
      public void message(String component, String message) {

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Examples of org.apache.lucene.util.InfoStream

    if (DirectoryReader.indexExists(indexDir)) {
      final List<IndexCommit> commits = DirectoryReader.listCommits(indexDir);
      final IndexCommit commit = commits.get(commits.size() - 1);
      currentRevisionFiles = IndexRevision.revisionFiles(commit);
      currentVersion = IndexRevision.revisionVersion(commit);
      final InfoStream infoStream = InfoStream.getDefault();
      if (infoStream.isEnabled(INFO_STREAM_COMPONENT)) {
        infoStream.message(INFO_STREAM_COMPONENT, "constructor(): currentVersion=" + currentVersion
            + " currentRevisionFiles=" + currentRevisionFiles);
        infoStream.message(INFO_STREAM_COMPONENT, "constructor(): commit=" + commit);
      }
    }
  }

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Examples of org.apache.lucene.util.InfoStream

  }
  
  public void testSimpleMergedSegmentWramer() throws Exception {
    Directory dir = newDirectory();
    final AtomicBoolean didWarm = new AtomicBoolean();
    InfoStream infoStream = new InfoStream() {
      @Override
      public void close() throws IOException {}


      @Override
      public void message(String component, String message) {

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Examples of org.apache.lucene.util.InfoStream

  public void testOutOfMemoryErrorCausesCloseToFail() throws Exception {


    final AtomicBoolean thrown = new AtomicBoolean(false);
    final Directory dir = newDirectory();
    final IndexWriter writer = new IndexWriter(dir,
        newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random())).setInfoStream(new InfoStream() {
        @Override
        public void message(String component, final String message) {
          if (message.startsWith("now flush at close") && thrown.compareAndSet(false, true)) {
            throw new OutOfMemoryError("fake OOME at " + message);
          }

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Examples of org.apache.lucene.util.InfoStream

    // currently: fail in two different places
    final String messageToFailOn = random().nextBoolean() ? 
        "rollback: done finish merges" : "rollback before checkpoint";
    
    // infostream that throws exception during rollback
    InfoStream evilInfoStream = new InfoStream() {
      @Override
      public void message(String component, String message) {
        if (messageToFailOn.equals(message)) {
          throw new RuntimeException("BOOM!");
        }

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Examples of org.apache.lucene.util.InfoStream

  public void testOutOfMemoryErrorCausesCloseToFail() throws Exception {


    final AtomicBoolean thrown = new AtomicBoolean(false);
    final Directory dir = newDirectory();
    final IndexWriter writer = new IndexWriter(dir,
        newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random())).setInfoStream(new InfoStream() {
        @Override
        public void message(String component, final String message) {
          if (message.startsWith("now flush at close") && thrown.compareAndSet(false, true)) {
            throw new OutOfMemoryError("fake OOME at " + message);
          }

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Examples of org.apache.lucene.util.InfoStream

    parseArgs(args).upgrade();
  }
  static IndexUpgrader parseArgs(String[] args) throws IOException {
    String path = null;
    boolean deletePriorCommits = false;
    InfoStream out = null;
    String dirImpl = null;
    int i = 0;
    while (i<args.length) {
      String arg = args[i];
      if ("-delete-prior-commits".equals(arg)) {

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Examples of org.apache.lucene.util.InfoStream

    iwc.setMergePolicy(new UpgradeIndexMergePolicy(iwc.getMergePolicy()));
    iwc.setIndexDeletionPolicy(new KeepOnlyLastCommitDeletionPolicy());
    
    final IndexWriter w = new IndexWriter(dir, iwc);
    try {
      InfoStream infoStream = iwc.getInfoStream();
      if (infoStream.isEnabled("IndexUpgrader")) {
        infoStream.message("IndexUpgrader", "Upgrading all pre-" + Constants.LUCENE_MAIN_VERSION + " segments of index directory '" + dir + "' to version " + Constants.LUCENE_MAIN_VERSION + "...");
      }
      w.forceMerge(1);
      if (infoStream.isEnabled("IndexUpgrader")) {
        infoStream.message("IndexUpgrader", "All segments upgraded to version " + Constants.LUCENE_MAIN_VERSION);
      }
    } finally {
      w.close();
    }
  }

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Examples of org.apache.lucene.util.InfoStream

  public void testOutOfMemoryErrorCausesCloseToFail() throws Exception {


    final AtomicBoolean thrown = new AtomicBoolean(false);
    final Directory dir = newDirectory();
    final IndexWriter writer = new IndexWriter(dir,
        newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random())).setInfoStream(new InfoStream() {
        @Override
        public void message(String component, final String message) {
          if (message.startsWith("now flush at close") && thrown.compareAndSet(false, true)) {
            throw new OutOfMemoryError("fake OOME at " + message);
          }

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