Examples with InfoStream org.apache.lucene.util.InfoStream used on opensource projects

Example 11 with InfoStream

use of org.apache.lucene.util.InfoStream in project lucene-solr by apache.

the class RollbackIndexTask method doLogic.

@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;
}

Example 12 with InfoStream

use of org.apache.lucene.util.InfoStream in project lucene-solr by apache.

the class IndexUpgrader method upgrade.

/** Perform the upgrade. */
public void upgrade() throws IOException {
    if (!DirectoryReader.indexExists(dir)) {
        throw new IndexNotFoundException(dir.toString());
    }
    if (!deletePriorCommits) {
        final Collection<IndexCommit> commits = DirectoryReader.listCommits(dir);
        if (commits.size() > 1) {
            throw new IllegalArgumentException("This tool was invoked to not delete prior commit points, but the following commits were found: " + commits);
        }
    }
    iwc.setMergePolicy(new UpgradeIndexMergePolicy(iwc.getMergePolicy()));
    iwc.setIndexDeletionPolicy(new KeepOnlyLastCommitDeletionPolicy());
    try (final IndexWriter w = new IndexWriter(dir, iwc)) {
        InfoStream infoStream = iwc.getInfoStream();
        if (infoStream.isEnabled(LOG_PREFIX)) {
            infoStream.message(LOG_PREFIX, "Upgrading all pre-" + Version.LATEST + " segments of index directory '" + dir + "' to version " + Version.LATEST + "...");
        }
        w.forceMerge(1);
        if (infoStream.isEnabled(LOG_PREFIX)) {
            infoStream.message(LOG_PREFIX, "All segments upgraded to version " + Version.LATEST);
            infoStream.message(LOG_PREFIX, "Enforcing commit to rewrite all index metadata...");
        }
        // fake change to enforce a commit (e.g. if index has no segments)
        w.setLiveCommitData(w.getLiveCommitData());
        assert w.hasUncommittedChanges();
        w.commit();
        if (infoStream.isEnabled(LOG_PREFIX)) {
            infoStream.message(LOG_PREFIX, "Committed upgraded metadata to index.");
        }
    }
}