io.druid.client.HttpServerInventoryViewConfig.java Source code

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Here is the source code for io.druid.client.HttpServerInventoryViewConfig.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.client;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Preconditions;
import org.joda.time.Period;

import java.util.concurrent.TimeUnit;

/**
 */
public class HttpServerInventoryViewConfig {
    // HTTP request timeout
    @JsonProperty
    private final long serverTimeout;

    // Requests to server may fail when it is shutsdown abruptly and there is a lag in coordinator
    // discovering its disappearance. So, failure would be logged only after the acceptable
    // unstableTimeout has passed.
    @JsonProperty
    private final long serverUnstabilityTimeout;

    @JsonProperty
    private final int numThreads;

    @JsonCreator
    public HttpServerInventoryViewConfig(@JsonProperty("serverTimeout") Period serverTimeout,
            @JsonProperty("serverUnstabilityTimeout") Period serverUnstabilityTimeout,
            @JsonProperty("numThreads") Integer numThreads) {
        this.serverTimeout = serverTimeout != null ? serverTimeout.toStandardDuration().getMillis()
                : TimeUnit.MINUTES.toMillis(4);

        this.serverUnstabilityTimeout = serverUnstabilityTimeout != null
                ? serverUnstabilityTimeout.toStandardDuration().getMillis()
                : TimeUnit.MINUTES.toMillis(1);

        this.numThreads = numThreads != null ? numThreads.intValue() : 5;

        Preconditions.checkArgument(this.serverTimeout > 0, "server timeout must be > 0 ms");
        Preconditions.checkArgument(this.numThreads > 1, "numThreads must be > 1");
    }

    public long getServerTimeout() {
        return serverTimeout;
    }

    public long getServerUnstabilityTimeout() {
        return serverUnstabilityTimeout;
    }

    public int getNumThreads() {
        return numThreads;
    }
}