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Java example source code file (SummaryTab.java)
This example Java source code file (SummaryTab.java) is included in the alvinalexander.com
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Learn more about this Java project at its project page.
The SummaryTab.java Java example source code
/*
* Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.tools.jconsole;
import java.awt.*;
import java.io.*;
import java.lang.management.*;
import java.lang.reflect.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import javax.swing.*;
import static sun.tools.jconsole.Formatter.*;
import static sun.tools.jconsole.Utilities.*;
@SuppressWarnings("serial")
class SummaryTab extends Tab {
private static final String cpuUsageKey = "cpu";
private static final String newDivider = "<tr> |
";
private static final String newTable = "<tr> | ";
private static final String newLeftTable = "<tr>";
private static final String newRightTable = "<td colspan=2 align=left>";
private static final String endTable = "</table>";
private static final int CPU_DECIMALS = 1;
private CPUOverviewPanel overviewPanel;
private DateFormat headerDateTimeFormat;
private String pathSeparator = null;
HTMLPane info;
private static class Result {
long upTime = -1L;
long processCpuTime = -1L;
long timeStamp;
int nCPUs;
String summary;
}
public static String getTabName() {
return Messages.SUMMARY_TAB_TAB_NAME;
}
public SummaryTab(VMPanel vmPanel) {
super(vmPanel, getTabName());
setLayout(new BorderLayout());
info = new HTMLPane();
setAccessibleName(info, getTabName());
add(new JScrollPane(info));
headerDateTimeFormat =
Formatter.getDateTimeFormat(Messages.SUMMARY_TAB_HEADER_DATE_TIME_FORMAT);
}
public SwingWorker<?, ?> newSwingWorker() {
return new SwingWorker<Result, Object>() {
public Result doInBackground() {
return formatSummary();
}
protected void done() {
try {
Result result = get();
if (result != null) {
info.setText(result.summary);
if (overviewPanel != null &&
result.upTime > 0L &&
result.processCpuTime >= 0L) {
overviewPanel.updateCPUInfo(result);
}
}
} catch (InterruptedException ex) {
} catch (ExecutionException ex) {
if (JConsole.isDebug()) {
ex.printStackTrace();
}
}
}
};
}
StringBuilder buf;
synchronized Result formatSummary() {
Result result = new Result();
ProxyClient proxyClient = vmPanel.getProxyClient();
if (proxyClient.isDead()) {
return null;
}
buf = new StringBuilder();
append("<table cellpadding=1>");
try {
RuntimeMXBean rmBean = proxyClient.getRuntimeMXBean();
CompilationMXBean cmpMBean = proxyClient.getCompilationMXBean();
ThreadMXBean tmBean = proxyClient.getThreadMXBean();
MemoryMXBean memoryBean = proxyClient.getMemoryMXBean();
ClassLoadingMXBean clMBean = proxyClient.getClassLoadingMXBean();
OperatingSystemMXBean osMBean = proxyClient.getOperatingSystemMXBean();
com.sun.management.OperatingSystemMXBean sunOSMBean =
proxyClient.getSunOperatingSystemMXBean();
append("<tr>");
append("<center>" + Messages.SUMMARY_TAB_TAB_NAME + "");
String dateTime =
headerDateTimeFormat.format(System.currentTimeMillis());
append("<center>" + dateTime + "");
append(newDivider);
{ // VM info
append(newLeftTable);
append(Messages.CONNECTION_NAME, vmPanel.getDisplayName());
append(Messages.VIRTUAL_MACHINE,
Resources.format(Messages.SUMMARY_TAB_VM_VERSION,
rmBean.getVmName(), rmBean.getVmVersion()));
append(Messages.VENDOR, rmBean.getVmVendor());
append(Messages.NAME, rmBean.getName());
append(endTable);
append(newRightTable);
result.upTime = rmBean.getUptime();
append(Messages.UPTIME, formatTime(result.upTime));
if (sunOSMBean != null) {
result.processCpuTime = sunOSMBean.getProcessCpuTime();
append(Messages.PROCESS_CPU_TIME, formatNanoTime(result.processCpuTime));
}
if (cmpMBean != null) {
append(Messages.JIT_COMPILER, cmpMBean.getName());
append(Messages.TOTAL_COMPILE_TIME,
cmpMBean.isCompilationTimeMonitoringSupported()
? formatTime(cmpMBean.getTotalCompilationTime())
: Messages.UNAVAILABLE);
} else {
append(Messages.JIT_COMPILER, Messages.UNAVAILABLE);
}
append(endTable);
}
append(newDivider);
{ // Threads and Classes
append(newLeftTable);
int tlCount = tmBean.getThreadCount();
int tdCount = tmBean.getDaemonThreadCount();
int tpCount = tmBean.getPeakThreadCount();
long ttCount = tmBean.getTotalStartedThreadCount();
String[] strings1 = formatLongs(tlCount, tpCount,
tdCount, ttCount);
append(Messages.LIVE_THREADS, strings1[0]);
append(Messages.PEAK, strings1[1]);
append(Messages.DAEMON_THREADS, strings1[2]);
append(Messages.TOTAL_THREADS_STARTED, strings1[3]);
append(endTable);
append(newRightTable);
long clCount = clMBean.getLoadedClassCount();
long cuCount = clMBean.getUnloadedClassCount();
long ctCount = clMBean.getTotalLoadedClassCount();
String[] strings2 = formatLongs(clCount, cuCount, ctCount);
append(Messages.CURRENT_CLASSES_LOADED, strings2[0]);
append(Messages.TOTAL_CLASSES_LOADED, strings2[2]);
append(Messages.TOTAL_CLASSES_UNLOADED, strings2[1]);
append(null, "");
append(endTable);
}
append(newDivider);
{ // Memory
MemoryUsage u = memoryBean.getHeapMemoryUsage();
append(newLeftTable);
String[] strings1 = formatKByteStrings(u.getUsed(), u.getMax());
append(Messages.CURRENT_HEAP_SIZE, strings1[0]);
append(Messages.MAXIMUM_HEAP_SIZE, strings1[1]);
append(endTable);
append(newRightTable);
String[] strings2 = formatKByteStrings(u.getCommitted());
append(Messages.COMMITTED_MEMORY, strings2[0]);
append(Messages.SUMMARY_TAB_PENDING_FINALIZATION_LABEL,
Messages.SUMMARY_TAB_PENDING_FINALIZATION_VALUE,
memoryBean.getObjectPendingFinalizationCount());
append(endTable);
append(newTable);
Collection<GarbageCollectorMXBean> garbageCollectors =
proxyClient.getGarbageCollectorMXBeans();
for (GarbageCollectorMXBean garbageCollectorMBean : garbageCollectors) {
String gcName = garbageCollectorMBean.getName();
long gcCount = garbageCollectorMBean.getCollectionCount();
long gcTime = garbageCollectorMBean.getCollectionTime();
append(Messages.GARBAGE_COLLECTOR,
Resources.format(Messages.GC_INFO, gcName, gcCount,
(gcTime >= 0) ? formatTime(gcTime)
: Messages.UNAVAILABLE),
4);
}
append(endTable);
}
append(newDivider);
{ // Operating System info
append(newLeftTable);
String osName = osMBean.getName();
String osVersion = osMBean.getVersion();
String osArch = osMBean.getArch();
result.nCPUs = osMBean.getAvailableProcessors();
append(Messages.OPERATING_SYSTEM, osName + " " + osVersion);
append(Messages.ARCHITECTURE, osArch);
append(Messages.NUMBER_OF_PROCESSORS, result.nCPUs+"");
if (pathSeparator == null) {
// Must use separator of remote OS, not File.pathSeparator
// from this local VM. In the future, consider using
// RuntimeMXBean to get the remote system property.
pathSeparator = osName.startsWith("Windows ") ? ";" : ":";
}
if (sunOSMBean != null) {
String[] kbStrings1 =
formatKByteStrings(sunOSMBean.getCommittedVirtualMemorySize());
String[] kbStrings2 =
formatKByteStrings(sunOSMBean.getTotalPhysicalMemorySize(),
sunOSMBean.getFreePhysicalMemorySize(),
sunOSMBean.getTotalSwapSpaceSize(),
sunOSMBean.getFreeSwapSpaceSize());
append(Messages.COMMITTED_VIRTUAL_MEMORY, kbStrings1[0]);
append(endTable);
append(newRightTable);
append(Messages.TOTAL_PHYSICAL_MEMORY, kbStrings2[0]);
append(Messages.FREE_PHYSICAL_MEMORY, kbStrings2[1]);
append(Messages.TOTAL_SWAP_SPACE, kbStrings2[2]);
append(Messages.FREE_SWAP_SPACE, kbStrings2[3]);
}
append(endTable);
}
append(newDivider);
{ // VM arguments and paths
append(newTable);
String args = "";
java.util.List<String> inputArguments = rmBean.getInputArguments();
for (String arg : inputArguments) {
args += arg + " ";
}
append(Messages.VM_ARGUMENTS, args, 4);
append(Messages.CLASS_PATH, rmBean.getClassPath(), 4);
append(Messages.LIBRARY_PATH, rmBean.getLibraryPath(), 4);
append(Messages.BOOT_CLASS_PATH,
rmBean.isBootClassPathSupported()
? rmBean.getBootClassPath()
: Messages.UNAVAILABLE,
4);
append(endTable);
}
} catch (IOException e) {
if (JConsole.isDebug()) {
e.printStackTrace();
}
proxyClient.markAsDead();
return null;
} catch (UndeclaredThrowableException e) {
if (JConsole.isDebug()) {
e.printStackTrace();
}
proxyClient.markAsDead();
return null;
}
append("</table>");
result.timeStamp = System.currentTimeMillis();
result.summary = buf.toString();
return result;
}
private synchronized void append(String str) {
buf.append(str);
}
void append(String label, String value) {
append(newRow(label, value));
}
private void append(String label, String value, int columnPerRow) {
if (columnPerRow == 4 && pathSeparator != null) {
value = value.replace(pathSeparator,
"<b>" + pathSeparator);
}
append(newRow(label, value, columnPerRow));
}
OverviewPanel[] getOverviewPanels() {
if (overviewPanel == null) {
overviewPanel = new CPUOverviewPanel();
}
return new OverviewPanel[] { overviewPanel };
}
private static class CPUOverviewPanel extends OverviewPanel {
private long prevUpTime, prevProcessCpuTime;
CPUOverviewPanel() {
super(Messages.CPU_USAGE, cpuUsageKey, Messages.CPU_USAGE, Plotter.Unit.PERCENT);
getPlotter().setDecimals(CPU_DECIMALS);
}
public void updateCPUInfo(Result result) {
if (prevUpTime > 0L && result.upTime > prevUpTime) {
// elapsedCpu is in ns and elapsedTime is in ms.
long elapsedCpu = result.processCpuTime - prevProcessCpuTime;
long elapsedTime = result.upTime - prevUpTime;
// cpuUsage could go higher than 100% because elapsedTime
// and elapsedCpu are not fetched simultaneously. Limit to
// 99% to avoid Plotter showing a scale from 0% to 200%.
float cpuUsage =
Math.min(99F,
elapsedCpu / (elapsedTime * 10000F * result.nCPUs));
cpuUsage = Math.max(0F, cpuUsage);
getPlotter().addValues(result.timeStamp,
Math.round(cpuUsage * Math.pow(10.0, CPU_DECIMALS)));
getInfoLabel().setText(Resources.format(Messages.CPU_USAGE_FORMAT,
String.format("%."+CPU_DECIMALS+"f", cpuUsage)));
}
this.prevUpTime = result.upTime;
this.prevProcessCpuTime = result.processCpuTime;
}
}
}
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