/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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 org.elasticsearch.monitor.network;
import org.elasticsearch.common.component.AbstractComponent;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.TimeValue;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Enumeration;
/**
* @author kimchy (shay.banon)
*/
public class NetworkService extends AbstractComponent {
private final NetworkProbe probe;
private final NetworkInfo info;
private final TimeValue refreshInterval;
private NetworkStats cachedStats;
@Inject public NetworkService(Settings settings, NetworkProbe probe) {
super(settings);
this.probe = probe;
this.refreshInterval = componentSettings.getAsTime("refresh_interval", TimeValue.timeValueSeconds(5));
logger.debug("Using probe [{}] with refresh_interval [{}]", probe, refreshInterval);
this.info = probe.networkInfo();
this.info.refreshInterval = refreshInterval.millis();
this.cachedStats = probe.networkStats();
if (logger.isDebugEnabled()) {
StringBuilder netDebug = new StringBuilder("net_info");
try {
Enumeration<NetworkInterface> enum_ = NetworkInterface.getNetworkInterfaces();
String hostName = InetAddress.getLocalHost().getHostName();
netDebug.append("\nhost [").append(hostName).append("]\n");
while (enum_.hasMoreElements()) {
NetworkInterface net = enum_.nextElement();
netDebug.append(net.getName()).append('\t').append("display_name [").append(net.getDisplayName()).append("]\n");
Enumeration<InetAddress> addresses = net.getInetAddresses();
netDebug.append("\t\taddress ");
while (addresses.hasMoreElements()) {
netDebug.append("[").append(addresses.nextElement()).append("] ");
}
netDebug.append('\n');
netDebug.append("\t\tmtu [").append(net.getMTU()).append("] multicast [").append(net.supportsMulticast()).append("] ptp [").append(net.isPointToPoint())
.append("] loopback [").append(net.isLoopback()).append("] up [").append(net.isUp()).append("] virtual [").append(net.isVirtual()).append("]")
.append('\n');
}
} catch (Exception ex) {
netDebug.append("Failed to get Network Interface Info [" + ex.getMessage() + "]");
}
logger.debug(netDebug.toString());
}
if (logger.isTraceEnabled()) {
logger.trace("ifconfig\n\n" + ifconfig());
}
}
public NetworkInfo info() {
return this.info;
}
public synchronized NetworkStats stats() {
if ((System.currentTimeMillis() - cachedStats.timestamp()) > refreshInterval.millis()) {
cachedStats = probe.networkStats();
}
return cachedStats;
}
public String ifconfig() {
return probe.ifconfig();
}
}