io.druid.indexer.granularity.UniformGranularitySpec.java Source code

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Here is the source code for io.druid.indexer.granularity.UniformGranularitySpec.java

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/*
 * Druid - a distributed column store.
 * Copyright (C) 2012, 2013  Metamarkets Group Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package io.druid.indexer.granularity;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.metamx.common.Granularity;
import org.joda.time.DateTime;
import org.joda.time.Interval;

import java.util.List;
import java.util.SortedSet;

public class UniformGranularitySpec implements GranularitySpec {
    final private Granularity granularity;
    final private List<Interval> inputIntervals;
    final private ArbitraryGranularitySpec wrappedSpec;

    @JsonCreator
    public UniformGranularitySpec(@JsonProperty("gran") Granularity granularity,
            @JsonProperty("intervals") List<Interval> inputIntervals) {
        List<Interval> granularIntervals = Lists.newArrayList();

        for (Interval inputInterval : inputIntervals) {
            Iterables.addAll(granularIntervals, granularity.getIterable(inputInterval));
        }

        this.granularity = granularity;
        this.inputIntervals = ImmutableList.copyOf(inputIntervals);
        this.wrappedSpec = new ArbitraryGranularitySpec(granularIntervals);
    }

    @Override
    public SortedSet<Interval> bucketIntervals() {
        return wrappedSpec.bucketIntervals();
    }

    @Override
    public Optional<Interval> bucketInterval(DateTime dt) {
        return wrappedSpec.bucketInterval(dt);
    }

    @JsonProperty("gran")
    public Granularity getGranularity() {
        return granularity;
    }

    @JsonProperty("intervals")
    public Iterable<Interval> getIntervals() {
        return inputIntervals;
    }
}