org.apache.druid.segment.indexing.granularity.UniformGranularitySpec.java Source code

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Here is the source code for org.apache.druid.segment.indexing.granularity.UniformGranularitySpec.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.druid.segment.indexing.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 org.apache.druid.java.util.common.granularity.Granularities;
import org.apache.druid.java.util.common.granularity.Granularity;
import org.joda.time.DateTime;
import org.joda.time.Interval;

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

public class UniformGranularitySpec implements GranularitySpec {
    private static final Granularity DEFAULT_SEGMENT_GRANULARITY = Granularities.DAY;
    private static final Granularity DEFAULT_QUERY_GRANULARITY = Granularities.NONE;

    private final Granularity segmentGranularity;
    private final Granularity queryGranularity;
    private final Boolean rollup;
    private final List<Interval> inputIntervals;
    private final ArbitraryGranularitySpec wrappedSpec;

    @JsonCreator
    public UniformGranularitySpec(@JsonProperty("segmentGranularity") Granularity segmentGranularity,
            @JsonProperty("queryGranularity") Granularity queryGranularity, @JsonProperty("rollup") Boolean rollup,
            @JsonProperty("intervals") List<Interval> inputIntervals) {
        this.queryGranularity = queryGranularity == null ? DEFAULT_QUERY_GRANULARITY : queryGranularity;
        this.rollup = rollup == null ? Boolean.TRUE : rollup;
        this.segmentGranularity = segmentGranularity == null ? DEFAULT_SEGMENT_GRANULARITY : segmentGranularity;

        if (inputIntervals != null) {
            List<Interval> granularIntervals = Lists.newArrayList();
            for (Interval inputInterval : inputIntervals) {
                Iterables.addAll(granularIntervals, this.segmentGranularity.getIterable(inputInterval));
            }
            this.inputIntervals = ImmutableList.copyOf(inputIntervals);
            this.wrappedSpec = new ArbitraryGranularitySpec(queryGranularity, rollup, granularIntervals);
        } else {
            this.inputIntervals = null;
            this.wrappedSpec = null;
        }
    }

    public UniformGranularitySpec(Granularity segmentGranularity, Granularity queryGranularity,
            List<Interval> inputIntervals) {
        this(segmentGranularity, queryGranularity, true, inputIntervals);
    }

    @Override
    public Optional<SortedSet<Interval>> bucketIntervals() {
        if (wrappedSpec == null) {
            return Optional.absent();
        } else {
            return wrappedSpec.bucketIntervals();
        }
    }

    @Override
    public List<Interval> inputIntervals() {
        return inputIntervals == null ? ImmutableList.of() : ImmutableList.copyOf(inputIntervals);
    }

    @Override
    public Optional<Interval> bucketInterval(DateTime dt) {
        if (wrappedSpec == null) {
            return Optional.absent();
        } else {
            return wrappedSpec.bucketInterval(dt);
        }
    }

    @Override
    @JsonProperty("segmentGranularity")
    public Granularity getSegmentGranularity() {
        return segmentGranularity;
    }

    @Override
    @JsonProperty("rollup")
    public boolean isRollup() {
        return rollup;
    }

    @Override
    @JsonProperty("queryGranularity")
    public Granularity getQueryGranularity() {
        return queryGranularity;
    }

    @JsonProperty("intervals")
    public Optional<List<Interval>> getIntervals() {
        return Optional.fromNullable(inputIntervals);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        UniformGranularitySpec that = (UniformGranularitySpec) o;

        if (segmentGranularity != that.segmentGranularity) {
            return false;
        }
        if (!queryGranularity.equals(that.queryGranularity)) {
            return false;
        }
        if (!rollup.equals(that.rollup)) {
            return false;
        }

        if (inputIntervals != null ? !inputIntervals.equals(that.inputIntervals) : that.inputIntervals != null) {
            return false;
        }
        return !(wrappedSpec != null ? !wrappedSpec.equals(that.wrappedSpec) : that.wrappedSpec != null);

    }

    @Override
    public int hashCode() {
        int result = segmentGranularity.hashCode();
        result = 31 * result + queryGranularity.hashCode();
        result = 31 * result + rollup.hashCode();
        result = 31 * result + (inputIntervals != null ? inputIntervals.hashCode() : 0);
        result = 31 * result + (wrappedSpec != null ? wrappedSpec.hashCode() : 0);
        return result;
    }

    @Override
    public String toString() {
        return "UniformGranularitySpec{" + "segmentGranularity=" + segmentGranularity + ", queryGranularity="
                + queryGranularity + ", rollup=" + rollup + ", inputIntervals=" + inputIntervals + ", wrappedSpec="
                + wrappedSpec + '}';
    }

    @Override
    public GranularitySpec withIntervals(List<Interval> inputIntervals) {
        return new UniformGranularitySpec(segmentGranularity, queryGranularity, rollup, inputIntervals);
    }
}