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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.common.monitoring;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.lang.management.RuntimeMXBean;
import java.lang.management.ThreadMXBean;
import java.util.HashMap;
import java.util.Map;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import org.hyperic.sigar.FileSystem;
import org.hyperic.sigar.Sigar;
import org.openecomp.sdc.common.impl.ExternalConfiguration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MonitoringMetricsFetcher {
private static Logger monitoringLogger = LoggerFactory.getLogger("asdc.fe.monitoring.fetcher");
private static volatile MonitoringMetricsFetcher instance;
private static RuntimeMXBean runtimeMXBean;
private static ThreadMXBean threadMXBean;
private static MemoryMXBean memoryMXBean;
private static MBeanServer platformMBeanServer;
private static Sigar sigarSession;
private static String appName;
private static String jvmName = "Unknown";
private final String PROCESS_CPU_TIME_ATTR = "ProcessCpuTime";
private static String FE_JVM_NAME = "jetty-fe";
private static String BE_JVM_NAME = "jetty-be";
private MonitoringMetricsFetcher() {
};
public static MonitoringMetricsFetcher getInstance() {
if (instance == null) {
instance = init();
}
return instance;
}
public MonitoringEvent getMonitoringMetrics() {
MonitoringEvent monitoringEvent = new MonitoringEvent();
monitoringEvent.setHostid(getFQDN());
monitoringEvent.setHostcpu(getHostCpuTime());
monitoringEvent.setHostmem(getHostUsedMemory());
monitoringEvent.setHostdisk(getHostUsedDisk().toString());
monitoringEvent.setJvmid(jvmName);
monitoringEvent.setJvmcpu(getJvmCpuTime());
monitoringEvent.setJvmmem(getJvmUsedHeapMemory());
monitoringEvent.setJvmtnum(getJvmThreads());
monitoringEvent.setAppid(appName);
// this is probably from healthcheck
// TODO
monitoringEvent.setAppstat("appStatus");
return monitoringEvent;
}
private static synchronized MonitoringMetricsFetcher init() {
if (instance == null) {
instance = new MonitoringMetricsFetcher();
threadMXBean = ManagementFactory.getThreadMXBean();
memoryMXBean = ManagementFactory.getMemoryMXBean();
runtimeMXBean = ManagementFactory.getRuntimeMXBean();
platformMBeanServer = ManagementFactory.getPlatformMBeanServer();
sigarSession = new Sigar();
appName = ExternalConfiguration.getAppName();
monitoringLogger.debug("appName is {}", appName);
// Accoridng to Yaki, there is no "calculated" jvmName like it was
// in TAS,
// just "jetty-be" or "jetty-fe"
if (appName.contains("fe")) {
jvmName = FE_JVM_NAME;
} else if (appName.contains("be")) {
jvmName = BE_JVM_NAME;
} else {
monitoringLogger
.warn("Couldn't determine jvmName, appName is expected to contain \"be\" or \"fe\" string");
}
}
return instance;
}
/**
* Returns the number of live threads for this JVM
*
* @return number of live threads
*/
private Integer getJvmThreads() {
return threadMXBean.getThreadCount();
}
/**
* Returns the number of used heap memory (bytes)
*
* @return the number of used heap memory (bytes)
*/
private long getJvmUsedHeapMemory() {
return memoryMXBean.getHeapMemoryUsage().getUsed();
}
/**
* Returns the jvm cpu time (msec)
*
* @return the jvm cpu time (msec)
*/
private long getJvmCpuTime() {
long cpuTime = -1;
try {
cpuTime = (long) platformMBeanServer.getAttribute(
new ObjectName(ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME), PROCESS_CPU_TIME_ATTR);
} catch (Exception e) {
monitoringLogger.error("Couldn't measure JVM CPU time, error: {}", e);
}
return cpuTime;
}
/**
* Returns the host total cpu time (msec)
*
* @return the host total cpu time (msec)
*/
private long getHostCpuTime() {
long cpuTime = -1;
try {
cpuTime = sigarSession.getCpu().getTotal();
} catch (Exception e) {
monitoringLogger.error("Couldn't measure host CPU time, error: {}", e);
}
return cpuTime;
}
/**
* Returns the host used memory(msec)
*
* @return the host used memory(msec)
*/
private Double getHostUsedMemory() {
Double memory = -1.0;
try {
memory = sigarSession.getMem().getUsedPercent();
} catch (Exception e) {
monitoringLogger.error("Couldn't measure host used memory, error: {}", e);
}
return memory;
}
/**
* Returns the percentage of all available FS
*
* @return the host avail disk(bytes)
*/
private Map<String, Double> getHostUsedDisk() {
Map<String, Double> res = new HashMap<>();
try {
FileSystem[] fileSystemList = sigarSession.getFileSystemList();
for (FileSystem fileSystem : fileSystemList) {
String dirName = fileSystem.getDirName();
double usePercent = sigarSession.getFileSystemUsage(dirName).getUsePercent() * 100;
res.put(dirName, usePercent);
}
} catch (Exception e) {
monitoringLogger.error("Couldn't measure host used disk, error: {}", e);
}
return res;
}
/**
* Returns the FQDN
*
* @return the FQDN
*/
private String getFQDN() {
String fqdn = "";
try {
fqdn = sigarSession.getFQDN();
} catch (Exception e) {
monitoringLogger.error("Couldn't get FQDN, error: {}", e);
}
return fqdn;
}
}
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