org.apache.druid.server.coordinator.rules.ForeverLoadRule.java Source code

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Here is the source code for org.apache.druid.server.coordinator.rules.ForeverLoadRule.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.server.coordinator.rules;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.ImmutableMap;
import org.apache.druid.client.DruidServer;
import org.apache.druid.timeline.DataSegment;
import org.joda.time.DateTime;
import org.joda.time.Interval;

import java.util.Map;

/**
 */
public class ForeverLoadRule extends LoadRule {
    private final Map<String, Integer> tieredReplicants;

    @JsonCreator
    public ForeverLoadRule(@JsonProperty("tieredReplicants") Map<String, Integer> tieredReplicants) {
        this.tieredReplicants = tieredReplicants == null
                ? ImmutableMap.of(DruidServer.DEFAULT_TIER, DruidServer.DEFAULT_NUM_REPLICANTS)
                : tieredReplicants;
        validateTieredReplicants(this.tieredReplicants);
    }

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

    @Override
    @JsonProperty
    public Map<String, Integer> getTieredReplicants() {
        return tieredReplicants;
    }

    @Override
    public int getNumReplicants(String tier) {
        Integer retVal = tieredReplicants.get(tier);
        return (retVal == null) ? 0 : retVal;
    }

    @Override
    public boolean appliesTo(DataSegment segment, DateTime referenceTimestamp) {
        return true;
    }

    @Override
    public boolean appliesTo(Interval interval, DateTime referenceTimestamp) {
        return true;
    }
}