AbstractTransportPoolTest.java

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 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
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 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing,
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package org.elasticsearch.hadoop.rest.pooling;

import org.elasticsearch.hadoop.cfg.Settings;
import org.elasticsearch.hadoop.rest.Transport;
import org.elasticsearch.hadoop.util.SettingsUtils;
import org.elasticsearch.hadoop.util.TestSettings;
import org.junit.Test;

import java.util.UUID;

import static org.elasticsearch.hadoop.cfg.ConfigurationOptions.ES_NET_TRANSPORT_POOLING_EXPIRATION_TIMEOUT;

public class AbstractTransportPoolTest {

    @Test
    public void removeOldConnections() throws Exception {
        Settings settings = new TestSettings();
        settings.setProperty(ES_NET_TRANSPORT_POOLING_EXPIRATION_TIMEOUT, "2s");

        String host = SettingsUtils.discoveredOrDeclaredNodes(settings).get(0);

        TransportPool pool = new TransportPool(UUID.randomUUID().toString(), host, settings);

        Transport transport1 = null;
        Transport transport2 = null;
        Transport transport3 = null;

        try {
            // Checkout three transports all at once, this should create three pooled transports.
            transport1 = pool.borrowTransport();
            transport2 = pool.borrowTransport();
            transport3 = pool.borrowTransport();

            // Close two of them.
            transport1.close();
            transport2.close();

            // Wait the amount of time to close.
            Thread.sleep(settings.getTransportPoolingExpirationTimeout().millis() + 1000L);

            // Will need to remove 2 connections at this point
            pool.removeOldConnections();

        } finally {
            // Close everything
            if (transport1 != null) {
                transport1.close();
            }

            if (transport2 != null) {
                transport2.close();
            }

            if (transport3 != null) {
                transport3.close();
            }
        }
    }

}