io.druid.segment.realtime.appenderator.SegmentIdentifier.java Source code

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Here is the source code for io.druid.segment.realtime.appenderator.SegmentIdentifier.java

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/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets 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 io.druid.segment.realtime.appenderator;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Preconditions;
import io.druid.timeline.DataSegment;
import io.druid.timeline.partition.ShardSpec;
import org.joda.time.Interval;

import java.util.Objects;

public class SegmentIdentifier {
    private final String dataSource;
    private final Interval interval;
    private final String version;
    private final ShardSpec shardSpec;
    private final String asString;

    @JsonCreator
    public SegmentIdentifier(@JsonProperty("dataSource") String dataSource,
            @JsonProperty("interval") Interval interval, @JsonProperty("version") String version,
            @JsonProperty("shardSpec") ShardSpec shardSpec) {
        this.dataSource = Preconditions.checkNotNull(dataSource, "dataSource");
        this.interval = Preconditions.checkNotNull(interval, "interval");
        this.version = Preconditions.checkNotNull(version, "version");
        this.shardSpec = Preconditions.checkNotNull(shardSpec, "shardSpec");
        this.asString = DataSegment.makeDataSegmentIdentifier(dataSource, interval.getStart(), interval.getEnd(),
                version, shardSpec);
    }

    @JsonProperty
    public String getDataSource() {
        return dataSource;
    }

    @JsonProperty
    public Interval getInterval() {
        return interval;
    }

    @JsonProperty
    public String getVersion() {
        return version;
    }

    @JsonProperty
    public ShardSpec getShardSpec() {
        return shardSpec;
    }

    public String getIdentifierAsString() {
        return asString;
    }

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

    @Override
    public int hashCode() {
        return asString.hashCode();
    }

    @Override
    public String toString() {
        return asString;
    }

    public static SegmentIdentifier fromDataSegment(final DataSegment segment) {
        return new SegmentIdentifier(segment.getDataSource(), segment.getInterval(), segment.getVersion(),
                segment.getShardSpec());
    }
}