com.metamx.druid.master.rules.SizeLoadRule.java Source code

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Here is the source code for com.metamx.druid.master.rules.SizeLoadRule.java

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/*
 * Druid - a distributed column store.
 * Copyright (C) 2012  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 com.metamx.druid.master.rules;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.Range;
import com.metamx.druid.client.DataSegment;
import org.joda.time.DateTime;

/**
 */
public class SizeLoadRule extends LoadRule {
    private final long low;
    private final long high;
    private final Integer replicants;
    private final String tier;
    private final Range<Long> range;

    @JsonCreator
    public SizeLoadRule(@JsonProperty("low") long low, @JsonProperty("high") long high,
            @JsonProperty("replicants") Integer replicants, @JsonProperty("tier") String tier) {
        this.low = low;
        this.high = high;
        this.replicants = replicants;
        this.tier = tier;
        this.range = Range.closedOpen(low, high);
    }

    @Override
    @JsonProperty
    public int getReplicants() {
        return replicants;
    }

    @Override
    public int getReplicants(String tier) {
        return (this.tier.equalsIgnoreCase(tier)) ? replicants : 0;
    }

    @Override
    @JsonProperty
    public String getTier() {
        return tier;
    }

    @Override
    public String getType() {
        return "loadBySize";
    }

    @JsonProperty
    public long getLow() {
        return low;
    }

    @JsonProperty
    public long getHigh() {
        return high;
    }

    @Override
    public boolean appliesTo(DataSegment segment, DateTime referenceTimestamp) {
        return range.contains(segment.getSize());
    }
}