| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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.apache.karaf.shell.commands.impl; |
| |
| 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.text.DecimalFormat; |
| import java.text.DecimalFormatSymbols; |
| import java.text.NumberFormat; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.concurrent.Callable; |
| |
| import org.apache.karaf.shell.commands.info.InfoProvider; |
| import org.apache.karaf.shell.api.action.Action; |
| import org.apache.karaf.shell.api.action.Command; |
| import org.apache.karaf.shell.api.action.lifecycle.Service; |
| import org.apache.karaf.shell.support.ansi.SimpleAnsi; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.FrameworkUtil; |
| |
| @Command(scope = "shell", name = "info", description = "Prints system information.") |
| @Service |
| public class InfoAction implements Action { |
| |
| private NumberFormat fmtI = new DecimalFormat("###,###", new DecimalFormatSymbols(Locale.ENGLISH)); |
| private NumberFormat fmtD = new DecimalFormat("###,##0.000", new DecimalFormatSymbols(Locale.ENGLISH)); |
| |
| // @Reference |
| List<InfoProvider> infoProviders; |
| |
| @Override |
| public Object execute() throws Exception { |
| int maxNameLen; |
| |
| RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean(); |
| OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean(); |
| ThreadMXBean threads = ManagementFactory.getThreadMXBean(); |
| MemoryMXBean mem = ManagementFactory.getMemoryMXBean(); |
| ClassLoadingMXBean cl = ManagementFactory.getClassLoadingMXBean(); |
| |
| // |
| // print Karaf informations |
| // |
| maxNameLen = 25; |
| System.out.println("Karaf"); |
| printValue("Karaf version", maxNameLen, System.getProperty("karaf.version")); |
| printValue("Karaf home", maxNameLen, System.getProperty("karaf.home")); |
| printValue("Karaf base", maxNameLen, System.getProperty("karaf.base")); |
| String osgi = getOsgiFramework(); |
| if (osgi != null) { |
| printValue("OSGi Framework", maxNameLen, osgi); |
| } |
| System.out.println(); |
| |
| System.out.println("JVM"); |
| printValue("Java Virtual Machine", maxNameLen, runtime.getVmName() + " version " + runtime.getVmVersion()); |
| printValue("Version", maxNameLen, System.getProperty("java.version")); |
| printValue("Vendor", maxNameLen, runtime.getVmVendor()); |
| printValue("Pid", maxNameLen, getPid()); |
| printValue("Uptime", maxNameLen, printDuration(runtime.getUptime())); |
| try { |
| printValue("Process CPU time", maxNameLen, printDuration(getSunOsValueAsLong(os, "getProcessCpuTime") / 1000000)); |
| } catch (Throwable t) { |
| } |
| printValue("Total compile time", maxNameLen, printDuration(ManagementFactory.getCompilationMXBean().getTotalCompilationTime())); |
| |
| System.out.println("Threads"); |
| printValue("Live threads", maxNameLen, Integer.toString(threads.getThreadCount())); |
| printValue("Daemon threads", maxNameLen, Integer.toString(threads.getDaemonThreadCount())); |
| printValue("Peak", maxNameLen, Integer.toString(threads.getPeakThreadCount())); |
| printValue("Total started", maxNameLen, Long.toString(threads.getTotalStartedThreadCount())); |
| |
| System.out.println("Memory"); |
| printValue("Current heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getUsed())); |
| printValue("Maximum heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getMax())); |
| printValue("Committed heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getCommitted())); |
| printValue("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("Garbage collector", maxNameLen, val); |
| } |
| |
| System.out.println("Classes"); |
| printValue("Current classes loaded", maxNameLen, printLong(cl.getLoadedClassCount())); |
| printValue("Total classes loaded", maxNameLen, printLong(cl.getTotalLoadedClassCount())); |
| printValue("Total classes unloaded", maxNameLen, printLong(cl.getUnloadedClassCount())); |
| |
| System.out.println("Operating system"); |
| printValue("Name", maxNameLen, os.getName() + " version " + os.getVersion()); |
| printValue("Architecture", maxNameLen, os.getArch()); |
| printValue("Processors", maxNameLen, Integer.toString(os.getAvailableProcessors())); |
| try { |
| printValue("Total physical memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getTotalPhysicalMemorySize"))); |
| printValue("Free physical memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getFreePhysicalMemorySize"))); |
| printValue("Committed virtual memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getCommittedVirtualMemorySize"))); |
| printValue("Total swap space", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getTotalSwapSpaceSize"))); |
| printValue("Free swap space", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getFreeSwapSpaceSize"))); |
| } catch (Throwable t) { |
| } |
| |
| //Display Information from external information providers. |
| Map<String, Map<Object, Object>> properties = new HashMap<String, Map<Object, Object>>(); |
| if (infoProviders != null) { |
| // dump all properties to Map, KARAF-425 |
| for (InfoProvider provider : infoProviders) { |
| if (!properties.containsKey(provider.getName())) { |
| properties.put(provider.getName(), new Properties()); |
| } |
| properties.get(provider.getName()).putAll(provider.getProperties()); |
| } |
| |
| List<String> sections = new ArrayList<String>(properties.keySet()); |
| Collections.sort(sections); |
| for (String section : sections) { |
| List<Object> keys = new ArrayList<Object>(properties.get(section).keySet()); |
| if (keys.size() > 0) { |
| System.out.println(section); |
| |
| Collections.sort(keys, new Comparator<Object>() { |
| public int compare(Object o1, Object o2) { |
| return String.valueOf(o1).compareTo(String.valueOf(o2)); |
| } |
| }); |
| |
| for (Object key : keys) { |
| printValue(String.valueOf(key), maxNameLen, String.valueOf(properties.get(section).get(key))); |
| } |
| } |
| } |
| } |
| return null; |
| } |
| |
| private String getPid() { |
| String name = ManagementFactory.getRuntimeMXBean().getName(); |
| String[] parts = name.split("@"); |
| return parts[0]; |
| } |
| |
| private long getSunOsValueAsLong(OperatingSystemMXBean os, String name) throws Exception { |
| Method mth = os.getClass().getMethod(name); |
| return (Long) mth.invoke(os); |
| } |
| |
| private String printLong(long i) { |
| return fmtI.format(i); |
| } |
| |
| private String printSizeInKb(double size) { |
| return fmtI.format((long) (size / 1024)) + " kbytes"; |
| } |
| |
| protected 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; |
| } |
| |
| void printSysValue(String prop, int pad) { |
| printValue(prop, pad, System.getProperty(prop)); |
| } |
| |
| void printValue(String name, int pad, String value) { |
| System.out.println( |
| " " + SimpleAnsi.INTENSITY_BOLD + name + SimpleAnsi.INTENSITY_NORMAL |
| + spaces(pad - name.length()) + " " + value); |
| } |
| |
| String spaces(int nb) { |
| StringBuilder sb = new StringBuilder(); |
| for (int i = 0; i < nb; i++) { |
| sb.append(' '); |
| } |
| return sb.toString(); |
| } |
| |
| 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; |
| } |
| } |
| |
| } |