Examples with QueryableIndexStorageAdapter org.apache.druid.segment.QueryableIndexStorageAdapter used on opensource projects

Example 46 with QueryableIndexStorageAdapter

use of org.apache.druid.segment.QueryableIndexStorageAdapter in project druid by druid-io.

the class IngestSegmentFirehoseTest method testReadFromIndexAndWriteAnotherIndex.

@Test
public void testReadFromIndexAndWriteAnotherIndex() throws Exception {
    // Tests a "reindexing" use case that is a common use of ingestSegment.
    File segmentDir = tempFolder.newFolder();
    createTestIndex(segmentDir);
    try (final QueryableIndex qi = indexIO.loadIndex(segmentDir);
        final IncrementalIndex index = new OnheapIncrementalIndex.Builder().setIndexSchema(new IncrementalIndexSchema.Builder().withDimensionsSpec(DIMENSIONS_SPEC_REINDEX).withMetrics(AGGREGATORS_REINDEX.toArray(new AggregatorFactory[0])).build()).setMaxRowCount(5000).build()) {
        final StorageAdapter sa = new QueryableIndexStorageAdapter(qi);
        final WindowedStorageAdapter wsa = new WindowedStorageAdapter(sa, sa.getInterval());
        final IngestSegmentFirehose firehose = new IngestSegmentFirehose(ImmutableList.of(wsa, wsa), TransformSpec.NONE, ImmutableList.of("host", "spatial"), ImmutableList.of("visited_sum", "unique_hosts"), null);
        int count = 0;
        while (firehose.hasMore()) {
            final InputRow row = firehose.nextRow();
            Assert.assertNotNull(row);
            if (count == 0) {
                Assert.assertEquals(DateTimes.of("2014-10-22T00Z"), row.getTimestamp());
                Assert.assertEquals("host1", row.getRaw("host"));
                Assert.assertEquals("0,1", row.getRaw("spatial"));
                Assert.assertEquals(10L, row.getRaw("visited_sum"));
                Assert.assertEquals(1.0d, ((HyperLogLogCollector) row.getRaw("unique_hosts")).estimateCardinality(), 0.1);
            }
            count++;
            index.add(row);
        }
        Assert.assertEquals(18, count);
        // Check the index
        Assert.assertEquals(9, index.size());
        final IncrementalIndexStorageAdapter queryable = new IncrementalIndexStorageAdapter(index);
        Assert.assertEquals(2, queryable.getAvailableDimensions().size());
        Assert.assertEquals("host", queryable.getAvailableDimensions().get(0));
        Assert.assertEquals("spatial", queryable.getAvailableDimensions().get(1));
        Assert.assertEquals(ImmutableList.of("visited_sum", "unique_hosts"), queryable.getAvailableMetrics());
        // Do a spatial filter
        final IngestSegmentFirehose firehose2 = new IngestSegmentFirehose(ImmutableList.of(new WindowedStorageAdapter(queryable, Intervals.of("2000/3000"))), TransformSpec.NONE, ImmutableList.of("host", "spatial"), ImmutableList.of("visited_sum", "unique_hosts"), new SpatialDimFilter("spatial", new RadiusBound(new float[] { 1, 0 }, 0.1f)));
        final InputRow row = firehose2.nextRow();
        Assert.assertFalse(firehose2.hasMore());
        Assert.assertEquals(DateTimes.of("2014-10-22T00Z"), row.getTimestamp());
        Assert.assertEquals("host2", row.getRaw("host"));
        Assert.assertEquals("1,0", row.getRaw("spatial"));
        Assert.assertEquals(40L, row.getRaw("visited_sum"));
        Assert.assertEquals(1.0d, ((HyperLogLogCollector) row.getRaw("unique_hosts")).estimateCardinality(), 0.1);
    }
}