io.datalayer.lucene.snapshot.IndexSnapshotTest.java Source code

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Here is the source code for io.datalayer.lucene.snapshot.IndexSnapshotTest.java

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package io.datalayer.lucene.snapshot;

import io.datalayer.lucene.helper.AosAnalyser;

import java.util.Collection;

import org.apache.lucene.index.IndexCommit;
import org.apache.lucene.index.IndexDeletionPolicy;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy;
import org.apache.lucene.index.SnapshotDeletionPolicy;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.Version;
import org.junit.Ignore;
import org.junit.Test;

public class IndexSnapshotTest {

    @Test
    @Ignore
    public void testSnapshot() throws Exception {

        Directory dir = null;

        IndexDeletionPolicy policy = new KeepOnlyLastCommitDeletionPolicy();
        SnapshotDeletionPolicy snapshotter = new SnapshotDeletionPolicy(policy);
        IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_44,
                AosAnalyser.NO_LIMIT_TOKEN_COUNT_SIMPLE_ANALYSER);
        conf.setIndexDeletionPolicy(snapshotter);

        IndexWriter writer = new IndexWriter(dir, conf);

        IndexCommit indexCommit = null;
        try {
            indexCommit = snapshotter.snapshot();
            Collection<String> fileNames = indexCommit.getFileNames();
            /* <iterate over & copy files from fileNames> */
        } finally {
            if (indexCommit != null) {
                snapshotter.release(indexCommit);
            }
        }

        writer.close();

    }

}