io.druid.query.spec.LegacySegmentSpec.java Source code

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Here is the source code for io.druid.query.spec.LegacySegmentSpec.java

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/*
 * Druid - a distributed column store.
 * Copyright 2012 - 2015 Metamarkets Group Inc.
 *
 * Licensed 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 io.druid.query.spec;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.google.common.base.Function;
import com.google.common.collect.Lists;
import com.metamx.common.IAE;
import org.joda.time.Interval;

import java.util.Arrays;
import java.util.List;
import java.util.Map;

/**
 */
public class LegacySegmentSpec extends MultipleIntervalSegmentSpec {
    private static List<Interval> convertValue(Object intervals) {
        final List<?> intervalStringList;
        if (intervals instanceof String) {
            intervalStringList = Arrays.asList((((String) intervals).split(",")));
        } else if (intervals instanceof Interval) {
            intervalStringList = Arrays.asList(intervals.toString());
        } else if (intervals instanceof Map) {
            intervalStringList = (List) ((Map) intervals).get("intervals");
        } else if (intervals instanceof List) {
            intervalStringList = (List) intervals;
        } else {
            throw new IAE("Unknown type[%s] for intervals[%s]", intervals.getClass(), intervals);
        }

        return Lists.transform(intervalStringList, new Function<Object, Interval>() {
            @Override
            public Interval apply(Object input) {
                return new Interval(input);
            }
        });
    }

    @JsonCreator
    public LegacySegmentSpec(Object intervals) {
        super(convertValue(intervals));
    }
}