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/*
* ============LICENSE_START=======================================================
* ONAP : ccsdk features
* ================================================================================
* Copyright (C) 2019 highstreet technologies GmbH 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.onap.ccsdk.features.sdnr.wt.dataprovider.http.about;
import java.io.File;
import java.io.IOException;
import java.lang.management.ClassLoadingMXBean;
import java.lang.management.GarbageCollectorMXBean;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.lang.management.OperatingSystemMXBean;
import java.lang.management.RuntimeMXBean;
import java.lang.management.ThreadMXBean;
import java.lang.reflect.Method;
import java.nio.file.Files;
import java.nio.file.Path;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import java.util.Iterator;
import java.util.Locale;
import java.util.concurrent.Callable;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Stream;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.FrameworkUtil;
public class SystemInfo {
private static NumberFormat fmtI = new DecimalFormat("###,###", new DecimalFormatSymbols(Locale.ENGLISH));
private static NumberFormat fmtDec = new DecimalFormat("###,###.##", new DecimalFormatSymbols(Locale.ENGLISH));
private static NumberFormat fmtD = new DecimalFormat("###,##0.000", new DecimalFormatSymbols(Locale.ENGLISH));
private static OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
protected static boolean showMemoryPools = false;
public static String getMdSalVersion(String def) {
return getMdSalVersion("", def);
}
public static String getYangToolsVersion(String def) {
return getYangToolsVersion("", def);
}
public static String getMdSalVersion(String baseOdlDirectory, String def) {
return getFeatureVersionByFolder(baseOdlDirectory, "system/org/opendaylight/mdsal/mdsal-binding-api/", def);
}
public static String getYangToolsVersion(String baseOdlDirectory, String def) {
return getFeatureVersionByFolder(baseOdlDirectory, "system/org/opendaylight/yangtools/odl-yangtools-common/",
def);
}
private static String getFeatureVersionByFolder(String baseOdlDirectory, String dir, String def) {
final String regex = "^[0-9]+\\.[0-9]+\\.[0-9]+(-SNAPSHOT)?$";
Stream<Path> entries = null;
try {
if (baseOdlDirectory != null && baseOdlDirectory.length() > 0 && !baseOdlDirectory.endsWith("/")) {
baseOdlDirectory += "/";
}
entries = Files.list(new File(baseOdlDirectory + dir).toPath());
} catch (IOException e) {
}
if (entries == null) {
return def;
}
final Pattern pattern = Pattern.compile(regex);
Iterator<Path> it = entries.iterator();
Path p;
File f;
while (it.hasNext()) {
p = it.next();
f = p.toFile();
if (f.isDirectory()) {
final Matcher matcher = pattern.matcher(f.getName().toString());
if (matcher.find()) {
def = matcher.group(0);
break;
}
}
}
entries.close();
return def;
}
public static String get() throws Exception {
StringBuilder sb = new StringBuilder();
int maxNameLen;
RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
ThreadMXBean threads = ManagementFactory.getThreadMXBean();
MemoryMXBean mem = ManagementFactory.getMemoryMXBean();
ClassLoadingMXBean cl = ManagementFactory.getClassLoadingMXBean();
//
// print Karaf informations
//
maxNameLen = 25;
sb.append("Karaf\n");
printValue(sb, "Karaf version", maxNameLen, System.getProperty("karaf.version"));
printValue(sb, "Karaf home", maxNameLen, System.getProperty("karaf.home"));
printValue(sb, "Karaf base", maxNameLen, System.getProperty("karaf.base"));
String osgi = getOsgiFramework();
if (osgi != null) {
printValue(sb, "OSGi Framework", maxNameLen, osgi);
}
sb.append("JVM\n");
printValue(sb, "Java Virtual Machine", maxNameLen, runtime.getVmName() + " version " + runtime.getVmVersion());
printValue(sb, "Version", maxNameLen, System.getProperty("java.version"));
printValue(sb, "Vendor", maxNameLen, runtime.getVmVendor());
printValue(sb, "Pid", maxNameLen, getPid());
printValue(sb, "Uptime", maxNameLen, printDuration(runtime.getUptime()));
try {
Class<?> sunOS = Class.forName("com.sun.management.OperatingSystemMXBean");
printValue(sb, "Process CPU time", maxNameLen,
printDuration(getValueAsLong(sunOS, "getProcessCpuTime") / 1000000.0));
printValue(sb, "Process CPU load", maxNameLen, fmtDec.format(getValueAsDouble(sunOS, "getProcessCpuLoad")));
printValue(sb, "System CPU load", maxNameLen, fmtDec.format(getValueAsDouble(sunOS, "getSystemCpuLoad")));
} catch (Throwable t) {
}
try {
Class<?> unixOS = Class.forName("com.sun.management.UnixOperatingSystemMXBean");
printValue(sb, "Open file descriptors", maxNameLen,
printLong(getValueAsLong(unixOS, "getOpenFileDescriptorCount")));
printValue(sb, "Max file descriptors", maxNameLen,
printLong(getValueAsLong(unixOS, "getMaxFileDescriptorCount")));
} catch (Throwable t) {
}
printValue(sb, "Total compile time", maxNameLen,
printDuration(ManagementFactory.getCompilationMXBean().getTotalCompilationTime()));
sb.append("Threads\n");
printValue(sb, "Live threads", maxNameLen, Integer.toString(threads.getThreadCount()));
printValue(sb, "Daemon threads", maxNameLen, Integer.toString(threads.getDaemonThreadCount()));
printValue(sb, "Peak", maxNameLen, Integer.toString(threads.getPeakThreadCount()));
printValue(sb, "Total started", maxNameLen, Long.toString(threads.getTotalStartedThreadCount()));
sb.append("Memory\n");
printValue(sb, "Current heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getUsed()));
printValue(sb, "Maximum heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getMax()));
printValue(sb, "Committed heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getCommitted()));
printValue(sb, "Pending objects", maxNameLen, Integer.toString(mem.getObjectPendingFinalizationCount()));
for (GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
String val = "Name = '" + gc.getName() + "', Collections = " + gc.getCollectionCount() + ", Time = "
+ printDuration(gc.getCollectionTime());
printValue(sb, "Garbage collector", maxNameLen, val);
}
// if (showMemoryPools) {
// List<MemoryPoolMXBean> memoryPools = ManagementFactory.getMemoryPoolMXBeans();
// sb.append("Memory Pools\n");
// printValue(sb, "Total Memory Pools", maxNameLen, printLong(memoryPools.size()));
// String spaces4 = " ";
// for (MemoryPoolMXBean pool : memoryPools) {
// String name = pool.getName();
// MemoryType type = pool.getType();
// printValue(sb, spaces4 + "Pool (" + type + ")", maxNameLen, name);
//
// // PeakUsage/CurrentUsage
// MemoryUsage peakUsage = pool.getPeakUsage();
// MemoryUsage usage = pool.getUsage();
//
// if (usage != null && peakUsage != null) {
// long init = peakUsage.getInit();
// long used = peakUsage.getUsed();
// long committed = peakUsage.getCommitted();
// long max = peakUsage.getMax();
// sb.append(spaces4 + spaces4 + "Peak Usage\n");
// printValue(sb, spaces4 + spaces4 + spaces4 + "init", maxNameLen, printLong(init));
// printValue(sb, spaces4 + spaces4 + spaces4 + "used", maxNameLen, printLong(used));
// printValue(sb, spaces4 + spaces4 + spaces4 + "committed", maxNameLen, printLong(committed));
// printValue(sb, spaces4 + spaces4 + spaces4 + "max", maxNameLen, printLong(max));
//
// init = usage.getInit();
// used = usage.getUsed();
// committed = usage.getCommitted();
// max = usage.getMax();
// sb.append(spaces4 + spaces4 + "Current Usage\n");
// printValue(sb, spaces4 + spaces4 + spaces4 + "init", maxNameLen, printLong(init));
// printValue(sb, spaces4 + spaces4 + spaces4 + "used", maxNameLen, printLong(used));
// printValue(sb, spaces4 + spaces4 + spaces4 + "committed", maxNameLen, printLong(committed));
// printValue(sb, spaces4 + spaces4 + spaces4 + "max", maxNameLen, printLong(max));
// }
// }
// }
sb.append("Classes\n");
printValue(sb, "Current classes loaded", maxNameLen, printLong(cl.getLoadedClassCount()));
printValue(sb, "Total classes loaded", maxNameLen, printLong(cl.getTotalLoadedClassCount()));
printValue(sb, "Total classes unloaded", maxNameLen, printLong(cl.getUnloadedClassCount()));
sb.append("Operating system\n");
printValue(sb, "Name", maxNameLen, os.getName() + " version " + os.getVersion());
printValue(sb, "Architecture", maxNameLen, os.getArch());
printValue(sb, "Processors", maxNameLen, Integer.toString(os.getAvailableProcessors()));
try {
printValue(sb, "Total physical memory", maxNameLen,
printSizeInKb(getSunOsValueAsLong(os, "getTotalPhysicalMemorySize")));
printValue(sb, "Free physical memory", maxNameLen,
printSizeInKb(getSunOsValueAsLong(os, "getFreePhysicalMemorySize")));
printValue(sb, "Committed virtual memory", maxNameLen,
printSizeInKb(getSunOsValueAsLong(os, "getCommittedVirtualMemorySize")));
printValue(sb, "Total swap space", maxNameLen,
printSizeInKb(getSunOsValueAsLong(os, "getTotalSwapSpaceSize")));
printValue(sb, "Free swap space", maxNameLen,
printSizeInKb(getSunOsValueAsLong(os, "getFreeSwapSpaceSize")));
} catch (Throwable t) {
}
return sb.toString();
}
private static String getPid() {
// In Java 9 the new process API can be used:
// long pid = ProcessHandle.current().getPid();
String name = ManagementFactory.getRuntimeMXBean().getName();
String[] parts = name.split("@");
return parts[0];
}
private static long getSunOsValueAsLong(OperatingSystemMXBean os, String name) throws Exception {
Method mth = os.getClass().getMethod(name);
return (Long) mth.invoke(os);
}
private static long getValueAsLong(Class<?> osImpl, String name) throws Exception {
if (osImpl.isInstance(os)) {
Method mth = osImpl.getMethod(name);
return (Long) mth.invoke(os);
}
return -1;
}
private static double getValueAsDouble(Class<?> osImpl, String name) throws Exception {
if (osImpl.isInstance(os)) {
Method mth = osImpl.getMethod(name);
return (Double) mth.invoke(os);
}
return -1;
}
private static String printLong(long i) {
return fmtI.format(i);
}
private static String printSizeInKb(double size) {
return fmtI.format((long) (size / 1024)) + " kbytes";
}
protected static String printDuration(double uptime) {
uptime /= 1000;
if (uptime < 60) {
return fmtD.format(uptime) + " seconds";
}
uptime /= 60;
if (uptime < 60) {
long minutes = (long) uptime;
String s = fmtI.format(minutes) + (minutes > 1 ? " minutes" : " minute");
return s;
}
uptime /= 60;
if (uptime < 24) {
long hours = (long) uptime;
long minutes = (long) ((uptime - hours) * 60);
String s = fmtI.format(hours) + (hours > 1 ? " hours" : " hour");
if (minutes != 0) {
s += " " + fmtI.format(minutes) + (minutes > 1 ? " minutes" : " minute");
}
return s;
}
uptime /= 24;
long days = (long) uptime;
long hours = (long) ((uptime - days) * 24);
String s = fmtI.format(days) + (days > 1 ? " days" : " day");
if (hours != 0) {
s += " " + fmtI.format(hours) + (hours > 1 ? " hours" : " hour");
}
return s;
}
static void printSysValue(StringBuilder sb, String prop, int pad) {
printValue(sb, prop, pad, System.getProperty(prop));
}
static void printValue(StringBuilder sb, String name, int pad, String value) {
sb.append(" " + // SimpleAnsi.INTENSITY_BOLD +
name + // SimpleAnsi.INTENSITY_NORMAL +
spaces(pad - name.length()) + " " + value + "\n");
}
static String spaces(int nb) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < nb; i++) {
sb.append(' ');
}
return sb.toString();
}
static String getOsgiFramework() {
try {
Callable<String> call = new Callable<String>() {
@Override
public String call() throws Exception {
BundleContext context = FrameworkUtil.getBundle(getClass()).getBundleContext();
Bundle sysBundle = context.getBundle(0);
return sysBundle.getSymbolicName() + "-" + sysBundle.getVersion();
}
};
return call.call();
} catch (Throwable t) {
// We're not in OSGi, just safely return null
return null;
}
}
}
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