shell/commands/src/main/java/org/apache/karaf/shell/commands/impl/InfoAction.java - karaf - Git at Google

 /*
  * 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.MemoryPoolMXBean;
 import java.lang.management.MemoryType;
 import java.lang.management.MemoryUsage;
 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.api.action.lifecycle.Reference;
 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.Option;
 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 fmtDec = new DecimalFormat("###,###.##", new DecimalFormatSymbols(Locale.ENGLISH));
     private NumberFormat fmtD = new DecimalFormat("###,##0.000", new DecimalFormatSymbols(Locale.ENGLISH));

     private OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();

     @Option(name="--memory-pools", aliases= {"-mp"}, description="Includes detailed information about memory pools")
     protected boolean showMemoryPools;

     @Reference
     List<InfoProvider> infoProviders;

     public InfoAction() {
         fmtDec.setMinimumFractionDigits(2);
     }

     @Override
     public Object execute() throws Exception {
         int maxNameLen;

         RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
         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 {
             Class< ? > sunOS = Class.forName("com.sun.management.OperatingSystemMXBean");
             printValue("Process CPU time", maxNameLen, printDuration(getValueAsLong(sunOS, "getProcessCpuTime") / 1000000));
             printValue("Process CPU load", maxNameLen, fmtDec.format(getValueAsDouble(sunOS, "getProcessCpuLoad")));
             printValue("System CPU load", maxNameLen, fmtDec.format(getValueAsDouble(sunOS, "getSystemCpuLoad")));
         } catch (Throwable t) {
         }
         try {
             Class<?> unixOS = Class.forName("com.sun.management.UnixOperatingSystemMXBean");
             printValue("Open file descriptors", maxNameLen, printLong(getValueAsLong(unixOS, "getOpenFileDescriptorCount")));
             printValue("Max file descriptors", maxNameLen, printLong(getValueAsLong(unixOS, "getMaxFileDescriptorCount")));
         } 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);
         }

         if (showMemoryPools) {
             List<MemoryPoolMXBean> memoryPools = ManagementFactory.getMemoryPoolMXBeans();
             System.out.println("Memory Pools");
             printValue("Total Memory Pools", maxNameLen, printLong(memoryPools.size()));
             String spaces4 = "   ";
             for (MemoryPoolMXBean pool : memoryPools)
             {
                 String name = pool.getName();
                 MemoryType type = pool.getType();
                 printValue(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();
                     System.out.println(spaces4 + spaces4 + "Peak Usage");
                     printValue(spaces4 + spaces4 + spaces4 + "init", maxNameLen, printLong(init));
                     printValue(spaces4 + spaces4 + spaces4 + "used", maxNameLen, printLong(used));
                     printValue(spaces4 + spaces4 + spaces4 + "committed", maxNameLen, printLong(committed));
                     printValue(spaces4 + spaces4 + spaces4 + "max", maxNameLen, printLong(max));

                     init = usage.getInit();
                     used = usage.getUsed();
                     committed = usage.getCommitted();
                     max = usage.getMax();
                     System.out.println(spaces4 + spaces4 + "Current Usage");
                     printValue(spaces4 + spaces4 + spaces4 + "init", maxNameLen, printLong(init));
                     printValue(spaces4 + spaces4 + spaces4 + "used", maxNameLen, printLong(used));
                     printValue(spaces4 + spaces4 + spaces4 + "committed", maxNameLen, printLong(committed));
                     printValue(spaces4 + spaces4 + spaces4 + "max", maxNameLen, printLong(max));
                 }
             }
         }

         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<>();
         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<>(properties.keySet());
             Collections.sort(sections);
             for (String section : sections) {
                 List<Object> keys = new ArrayList<>(properties.get(section).keySet());
                 if (keys.size() > 0) {
                     System.out.println(section);

                     keys.sort(Comparator.comparing(String::valueOf));

                     for (Object key : keys) {
                         printValue(String.valueOf(key), maxNameLen, String.valueOf(properties.get(section).get(key)));
                     }
                 }
             }
         }
         return null;
     }

     private 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 long getSunOsValueAsLong(OperatingSystemMXBean os, String name) throws Exception {
         Method mth = os.getClass().getMethod(name);
         return (Long) mth.invoke(os);
     }

     private 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 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 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;
         }
     }

 }
	/*
	* 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.MemoryPoolMXBean;
	import java.lang.management.MemoryType;
	import java.lang.management.MemoryUsage;
	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.api.action.lifecycle.Reference;
	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.Option;
	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 fmtDec = new DecimalFormat("###,###.##", new DecimalFormatSymbols(Locale.ENGLISH));
	private NumberFormat fmtD = new DecimalFormat("###,##0.000", new DecimalFormatSymbols(Locale.ENGLISH));

	private OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();

	@Option(name="--memory-pools", aliases= {"-mp"}, description="Includes detailed information about memory pools")
	protected boolean showMemoryPools;

	@Reference
	List<InfoProvider> infoProviders;

	public InfoAction() {
	fmtDec.setMinimumFractionDigits(2);
	}

	@Override
	public Object execute() throws Exception {
	int maxNameLen;

	RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
	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 {
	Class< ? > sunOS = Class.forName("com.sun.management.OperatingSystemMXBean");
	printValue("Process CPU time", maxNameLen, printDuration(getValueAsLong(sunOS, "getProcessCpuTime") / 1000000));
	printValue("Process CPU load", maxNameLen, fmtDec.format(getValueAsDouble(sunOS, "getProcessCpuLoad")));
	printValue("System CPU load", maxNameLen, fmtDec.format(getValueAsDouble(sunOS, "getSystemCpuLoad")));
	} catch (Throwable t) {
	}
	try {
	Class<?> unixOS = Class.forName("com.sun.management.UnixOperatingSystemMXBean");
	printValue("Open file descriptors", maxNameLen, printLong(getValueAsLong(unixOS, "getOpenFileDescriptorCount")));
	printValue("Max file descriptors", maxNameLen, printLong(getValueAsLong(unixOS, "getMaxFileDescriptorCount")));
	} 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);
	}

	if (showMemoryPools) {
	List<MemoryPoolMXBean> memoryPools = ManagementFactory.getMemoryPoolMXBeans();
	System.out.println("Memory Pools");
	printValue("Total Memory Pools", maxNameLen, printLong(memoryPools.size()));
	String spaces4 = " ";
	for (MemoryPoolMXBean pool : memoryPools)
	{
	String name = pool.getName();
	MemoryType type = pool.getType();
	printValue(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();
	System.out.println(spaces4 + spaces4 + "Peak Usage");
	printValue(spaces4 + spaces4 + spaces4 + "init", maxNameLen, printLong(init));
	printValue(spaces4 + spaces4 + spaces4 + "used", maxNameLen, printLong(used));
	printValue(spaces4 + spaces4 + spaces4 + "committed", maxNameLen, printLong(committed));
	printValue(spaces4 + spaces4 + spaces4 + "max", maxNameLen, printLong(max));

	init = usage.getInit();
	used = usage.getUsed();
	committed = usage.getCommitted();
	max = usage.getMax();
	System.out.println(spaces4 + spaces4 + "Current Usage");
	printValue(spaces4 + spaces4 + spaces4 + "init", maxNameLen, printLong(init));
	printValue(spaces4 + spaces4 + spaces4 + "used", maxNameLen, printLong(used));
	printValue(spaces4 + spaces4 + spaces4 + "committed", maxNameLen, printLong(committed));
	printValue(spaces4 + spaces4 + spaces4 + "max", maxNameLen, printLong(max));
	}
	}
	}

	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<>();
	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<>(properties.keySet());
	Collections.sort(sections);
	for (String section : sections) {
	List<Object> keys = new ArrayList<>(properties.get(section).keySet());
	if (keys.size() > 0) {
	System.out.println(section);

	keys.sort(Comparator.comparing(String::valueOf));

	for (Object key : keys) {
	printValue(String.valueOf(key), maxNameLen, String.valueOf(properties.get(section).get(key)));
	}
	}
	}
	}
	return null;
	}

	private 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 long getSunOsValueAsLong(OperatingSystemMXBean os, String name) throws Exception {
	Method mth = os.getClass().getMethod(name);
	return (Long) mth.invoke(os);
	}

	private 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 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 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;
	}
	}

	}