io.druid.indexing.overlord.ImmutableZkWorker.java Source code

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Here is the source code for io.druid.indexing.overlord.ImmutableZkWorker.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.indexing.overlord;

import com.google.common.collect.ImmutableSet;
import io.druid.indexing.common.task.Task;
import io.druid.indexing.worker.Worker;

import java.util.Set;

/**
 * A snapshot of a {@link io.druid.indexing.overlord.ZkWorker}
 */
public class ImmutableZkWorker {
    private final Worker worker;
    private final int currCapacityUsed;
    private final ImmutableSet<String> availabilityGroups;

    public ImmutableZkWorker(Worker worker, int currCapacityUsed, Set<String> availabilityGroups) {
        this.worker = worker;
        this.currCapacityUsed = currCapacityUsed;
        this.availabilityGroups = ImmutableSet.copyOf(availabilityGroups);
    }

    public Worker getWorker() {
        return worker;
    }

    public int getCurrCapacityUsed() {
        return currCapacityUsed;
    }

    public Set<String> getAvailabilityGroups() {
        return availabilityGroups;
    }

    public boolean isValidVersion(String minVersion) {
        return worker.getVersion().compareTo(minVersion) >= 0;
    }

    public boolean canRunTask(Task task) {
        return (worker.getCapacity() - getCurrCapacityUsed() >= task.getTaskResource().getRequiredCapacity()
                && !getAvailabilityGroups().contains(task.getTaskResource().getAvailabilityGroup()));
    }
}