com.qwazr.cluster.manager.ClusterMonitoringThread.java Source code

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Here is the source code for com.qwazr.cluster.manager.ClusterMonitoringThread.java

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/**
 * Copyright 2014-2016 Emmanuel Keller / QWAZR
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 com.qwazr.cluster.manager;

import com.qwazr.utils.server.ServerException;
import com.qwazr.utils.threads.PeriodicThread;
import org.apache.commons.lang3.RandomUtils;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.impl.nio.client.CloseableHttpAsyncClient;
import org.apache.http.impl.nio.client.HttpAsyncClients;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ClusterMonitoringThread extends PeriodicThread {

    private static final Logger logger = LoggerFactory.getLogger(ClusterMonitoringThread.class);

    private final RequestConfig requestConfig;
    private final CloseableHttpAsyncClient httpclient;

    ClusterMonitoringThread(int monitoring_period_seconds) {
        super("Nodes monitoring", monitoring_period_seconds);
        setDaemon(true);
        requestConfig = RequestConfig.custom().setSocketTimeout(monitoring_period)
                .setConnectTimeout(monitoring_period).build();
        httpclient = HttpAsyncClients.custom().setMaxConnPerRoute(2).setMaxConnTotal(100)
                .setDefaultRequestConfig(requestConfig).build();
        httpclient.start();
        start();
    }

    @Override
    public void runner() {
        try {
            for (ClusterNode clusterNode : ClusterManager.INSTANCE.getNodeList())
                checkNode(clusterNode);
        } catch (ServerException e) {
            logger.error(e.getMessage(), e);
        }
    }

    public void checkNode(ClusterNode clusterNode) {
        clusterNode.startCheck(httpclient);
    }

    @Override
    public void run() {
        sleepMs(RandomUtils.nextInt(10000, 15000));
        super.run();
    }
}