Package org.apache.lucene.util

Examples of org.apache.lucene.util.InfoStream$NoOutput

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  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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    // 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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    c.setMergePolicy(new UpgradeIndexMergePolicy(c.getMergePolicy()));
    c.setIndexDeletionPolicy(new KeepOnlyLastCommitDeletionPolicy());
   
    final IndexWriter w = new IndexWriter(dir, c);
    try {
      InfoStream infoStream = c.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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  }
 
  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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    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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    if (indexExists) { // both indexes exist
      final IndexCommit indexCommit = IndexReplicationHandler.getLastCommit(indexDir);
      final IndexCommit taxoCommit = IndexReplicationHandler.getLastCommit(taxoDir);
      currentRevisionFiles = IndexAndTaxonomyRevision.revisionFiles(indexCommit, taxoCommit);
      currentVersion = IndexAndTaxonomyRevision.revisionVersion(indexCommit, taxoCommit);
      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(): indexCommit=" + indexCommit
            + " taxoCommit=" + taxoCommit);
      }
    }
  }
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  @Override
  public int doLogic() throws IOException {
    IndexWriter iw = getRunData().getIndexWriter();
    if (iw != null) {
      // If infoStream was set to output to a file, close it.
      InfoStream infoStream = iw.getConfig().getInfoStream();
      if (infoStream != null) {
        infoStream.close();
      }
      iw.rollback();
      getRunData().setIndexWriter(null);
    }
    return 1;
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  @Override
  public int doLogic() throws IOException {
    IndexWriter iw = getRunData().getIndexWriter();
    if (iw != null) {
      // If infoStream was set to output to a file, close it.
      InfoStream infoStream = iw.getConfig().getInfoStream();
      if (infoStream != null) {
        infoStream.close();
      }
      iw.close(doWait);
      getRunData().setIndexWriter(null);
    }
    return 1;
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