Examples with IndexCommit org.apache.lucene.index.IndexCommit used on opensource projects

Example 46 with IndexCommit

use of org.apache.lucene.index.IndexCommit in project lucene-solr by apache.

the class SnapShooter method createSnapshot.

public NamedList createSnapshot() throws Exception {
    RefCounted<SolrIndexSearcher> searcher = solrCore.getSearcher();
    try {
        if (commitName != null) {
            SolrSnapshotMetaDataManager snapshotMgr = solrCore.getSnapshotMetaDataManager();
            Optional<IndexCommit> commit = snapshotMgr.getIndexCommitByName(commitName);
            if (commit.isPresent()) {
                return createSnapshot(commit.get());
            }
            throw new SolrException(ErrorCode.SERVER_ERROR, "Unable to find an index commit with name " + commitName + " for core " + solrCore.getName());
        } else {
            //TODO should we try solrCore.getDeletionPolicy().getLatestCommit() first?
            IndexDeletionPolicyWrapper deletionPolicy = solrCore.getDeletionPolicy();
            IndexCommit indexCommit = searcher.get().getIndexReader().getIndexCommit();
            deletionPolicy.saveCommitPoint(indexCommit.getGeneration());
            try {
                return createSnapshot(indexCommit);
            } finally {
                deletionPolicy.releaseCommitPoint(indexCommit.getGeneration());
            }
        }
    } finally {
        searcher.decref();
    }
}

Example 47 with IndexCommit

use of org.apache.lucene.index.IndexCommit in project neo4j-mobile-android by neo4j-contrib.

the class LuceneDataSource method listStoreFiles.

@Override
public ClosableIterable<File> listStoreFiles(boolean includeLogicalLogs) throws IOException {
    // Never include logical logs since they are of little importance
    final Collection<File> files = new ArrayList<File>();
    final Collection<SnapshotDeletionPolicy> snapshots = new ArrayList<SnapshotDeletionPolicy>();
    makeSureAllIndexesAreInstantiated();
    for (Map.Entry<IndexIdentifier, Pair<IndexWriter, AtomicBoolean>> writer : indexWriters.entrySet()) {
        SnapshotDeletionPolicy deletionPolicy = (SnapshotDeletionPolicy) writer.getValue().first().getConfig().getIndexDeletionPolicy();
        File indexDirectory = getFileDirectory(baseStorePath, writer.getKey());
        try {
            // Throws IllegalStateException if no commits yet
            IndexCommit commit = deletionPolicy.snapshot(SNAPSHOT_ID);
            for (String fileName : commit.getFileNames()) {
                files.add(new File(indexDirectory, fileName));
            }
            snapshots.add(deletionPolicy);
        } catch (IllegalStateException e) {
        // TODO Review this
        /*
                 * This is insane but happens if we try to snapshot an existing index
                 * that has no commits. This is a bad API design - it should return null
                 * or something. This is not exceptional.
                 */
        }
    }
    files.add(providerStore.getFile());
    return new ClosableIterable<File>() {

        public Iterator<File> iterator() {
            return files.iterator();
        }

        public void close() {
            for (SnapshotDeletionPolicy deletionPolicy : snapshots) {
                try {
                    deletionPolicy.release(SNAPSHOT_ID);
                } catch (IOException e) {
                    // TODO What to do?
                    e.printStackTrace();
                }
            }
        }
    };
}

Example 48 with IndexCommit

use of org.apache.lucene.index.IndexCommit in project jackrabbit by apache.

the class IndexDeletionPolicyImpl method checkCommits.

// -------------------------------< internal >-------------------------------
private void checkCommits(List<? extends IndexCommit> commits) throws IOException {
    long currentTime = System.currentTimeMillis();
    for (int i = 0; i < commits.size() - 1; i++) {
        IndexCommit ic = commits.get(i);
        long lastModified = index.getDirectory().fileModified(ic.getSegmentsFileName());
        if (currentTime - lastModified > maxAge) {
            ic.delete();
        } else {
            // following commits are younger, no need to check
            break;
        }
    }
}

Example 49 with IndexCommit

use of org.apache.lucene.index.IndexCommit in project jackrabbit by apache.

the class IndexDeletionPolicyImpl method onCommit.

public void onCommit(List<? extends IndexCommit> commits) throws IOException {
    checkCommits(commits);
    // report back current generation
    IndexCommit current = commits.get(commits.size() - 1);
    String name = current.getSegmentsFileName();
    if (name.equals(SEGMENTS)) {
        index.setCurrentGeneration(0);
    } else {
        index.setCurrentGeneration(Long.parseLong(name.substring(SEGMENTS.length() + 1), Character.MAX_RADIX));
    }
}

Example 50 with IndexCommit

use of org.apache.lucene.index.IndexCommit in project OpenGrok by OpenGrok.

the class SuggesterProjectData method getCommitVersion.

private long getCommitVersion() throws IOException {
    List<IndexCommit> commits = DirectoryReader.listCommits(indexDir);
    if (commits.size() > 1) {
        throw new IllegalStateException("IndexDeletionPolicy changed, normally only one commit should be stored");
    }
    IndexCommit commit = commits.get(0);
    return commit.getGeneration();
}