scouter.agent.counter.task.FDInfo Maven / Gradle / Ivy
/*
* Copyright 2015 the original author or authors.
* @https://github.com/scouter-project/scouter
*
* 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
*
* 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 scouter.agent.counter.task;
import java.lang.management.ManagementFactory;
import java.lang.management.OperatingSystemMXBean;
import com.sun.management.UnixOperatingSystemMXBean;
import scouter.agent.Logger;
import scouter.agent.counter.CounterBasket;
import scouter.agent.counter.anotation.Counter;
import scouter.lang.TimeTypeEnum;
import scouter.lang.counters.CounterConstants;
import scouter.lang.pack.PerfCounterPack;
import scouter.lang.value.ListValue;
public class FDInfo {
public static boolean availableFdInfo = true;
@Counter
public void process(CounterBasket pw) {
if (availableFdInfo == false) {
return;
}
// Currently supported only sun jvm on unix platform
try {
OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
if(os instanceof UnixOperatingSystemMXBean){
UnixOperatingSystemMXBean unixOs = (UnixOperatingSystemMXBean) os;
long max = unixOs.getMaxFileDescriptorCount();
long open = unixOs.getOpenFileDescriptorCount();
ListValue fdUsage = new ListValue();
fdUsage.add(max);
fdUsage.add(open);
PerfCounterPack p = pw.getPack(TimeTypeEnum.REALTIME);
p.put(CounterConstants.JAVA_FD_USAGE, fdUsage);
} else {
availableFdInfo = false;
}
} catch (Throwable th) {
Logger.println(th.getMessage());
availableFdInfo = false;
}
}
}