org.eclipse.mylyn.internal.commons.repositories.http.core.IdleConnectionMonitorThread.java Source code

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Here is the source code for org.eclipse.mylyn.internal.commons.repositories.http.core.IdleConnectionMonitorThread.java

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/*******************************************************************************
 * Copyright (c) 2012 Tasktop Technologies and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Tasktop Technologies - initial API and implementation
 *******************************************************************************/

package org.eclipse.mylyn.internal.commons.repositories.http.core;

import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.TimeUnit;

import org.apache.http.conn.ClientConnectionManager;

/**
 * Closes idle connections periodically.
 * 
 * @author spingel
 */
public class IdleConnectionMonitorThread extends Thread {

    private final List<ClientConnectionManager> connectionManagers;

    private long pollingInterval;

    private volatile boolean shutdown;

    private long timeout;

    public IdleConnectionMonitorThread(long pollingInterval) {
        this.pollingInterval = pollingInterval;
        this.connectionManagers = new CopyOnWriteArrayList<ClientConnectionManager>();
        setDaemon(true);
    }

    public void addConnectionManager(ClientConnectionManager manager) {
        connectionManagers.add(manager);
    }

    public long getPollingInterval() {
        return pollingInterval;
    }

    public long getTimeout() {
        return timeout;
    }

    public void removeConnectionManager(ClientConnectionManager manager) {
        connectionManagers.remove(manager);
    }

    @Override
    public void run() {
        try {
            while (!shutdown) {
                for (ClientConnectionManager connectionManager : connectionManagers) {
                    connectionManager.closeExpiredConnections();
                    if (timeout > 0) {
                        connectionManager.closeIdleConnections(timeout, TimeUnit.MILLISECONDS);
                    }
                }

                synchronized (this) {
                    wait(pollingInterval);
                }
            }
        } catch (InterruptedException e) {
            // shutdown
        }
    }

    public void setPollingInterval(long pollingInterval) {
        this.pollingInterval = pollingInterval;
    }

    public void setTimeout(long timeout) {
        this.timeout = timeout;
    }

    public void shutdown() {
        this.shutdown = true;
        synchronized (this) {
            notifyAll();
        }
    }

}