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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* 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.
*
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package com.sun.tools.visualvm.modules.tracer.dtrace;
import com.sun.tools.visualvm.application.Application;
import com.sun.tools.visualvm.modules.tracer.SessionInitializationException;
import com.sun.tools.visualvm.modules.tracer.TracerPackage;
import com.sun.tools.visualvm.modules.tracer.TracerProbe;
import com.sun.tools.visualvm.modules.tracer.TracerProbeDescriptor;
import com.sun.tools.visualvm.modules.tracer.TracerProgressObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.management.ManagementFactory;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import org.openide.util.Exceptions;
import org.openide.util.ImageUtilities;
import org.opensolaris.os.dtrace.Consumer;
import org.opensolaris.os.dtrace.DTraceException;
import org.opensolaris.os.dtrace.LocalConsumer;
/**
*
* @author Tomas Hurka
*/
class DTracePackage extends TracerPackage.SessionAware<Application>{
static final Icon ICON = new ImageIcon(ImageUtilities.loadImage(
"com/sun/tools/visualvm/modules/tracer/dtrace/resources/cpuSmall.png", true)); // NOI18N
private static final String NAME = "DTrace Probes";
private static final String DESCR = "Provides low level system metrics using the DTrace technology.";
private static final int POSITION = 120;
private static final String DSCRIPT_FILE =
"com/sun/tools/visualvm/modules/tracer/dtrace/resources/probes.d"; // NOI18N
private Consumer consumer;
private Application application;
private String probe;
private TracerProgressObject progress;
private TracerProbeDescriptor cpusDesc;
private TracerProbeDescriptor syscallDesc;
private TracerProbeDescriptor bytesIODesc;
private TracerProbeDescriptor jvmOverhead;
DTracePackage(Application app) {
super(NAME,DESCR,ICON,POSITION);
application = app;
}
@Override
public TracerProbeDescriptor[] getProbeDescriptors() {
cpusDesc = CpusMonitorProbe.createDescriptor(ICON, true);
syscallDesc = SyscallsProbe.createDescriptor(ICON, true);
bytesIODesc = BytesIOProbe.createDescriptor(ICON, true);
jvmOverhead = JVMOverheadProbe.createDescriptor(ICON, true);
return new TracerProbeDescriptor[] { cpusDesc, syscallDesc, bytesIODesc, jvmOverhead };
}
@Override
public TracerProbe<Application> getProbe(TracerProbeDescriptor descriptor) {
if (descriptor == cpusDesc) {
return new CpusMonitorProbe(this);
}
if (descriptor == syscallDesc) {
return new SyscallsProbe(this);
}
if (descriptor == bytesIODesc) {
return new BytesIOProbe(this);
}
if (descriptor == jvmOverhead) {
return new JVMOverheadProbe(this);
}
return null;
}
@Override
protected TracerProgressObject sessionInitializing(TracerProbe<Application>[] probes, Application app, int refresh) {
return progress = new TracerProgressObject(5);
}
@Override
protected void sessionStarting(TracerProbe<Application>[] probes, Application app) throws SessionInitializationException {
try {
consumer = new LocalConsumer();
// consumer.addConsumerListener(new ConsumerAdapter() {
//
// @Override
// public void dataReceived(DataEvent e) throws ConsumerException {
// System.out.println(e);
// }
//
// });
progress.addStep("Loading script");
probe = readScript(DSCRIPT_FILE);
progress.addStep("Opening dtrace connection");
consumer.open();
progress.addStep("Attaching to process");
consumer.grabProcess(app.getPid());
progress.addStep("Compiling");
consumer.compile(probe, (String[])null);
progress.addStep("Enabling");
consumer.enable();
} catch (IOException ex) {
throw new SessionInitializationException(ex.getMessage(), ex);
} catch (DTraceException ex) {
throw new SessionInitializationException(ex.getMessage(), ex);
}
}
@Override
protected void sessionRunning(TracerProbe<Application>[] probes, Application app) {
try {
consumer.go();
} catch (DTraceException ex) {
Exceptions.printStackTrace(ex);
}
}
@Override
protected void sessionStopping(TracerProbe<Application>[] probes, Application dataSource) {
consumer.stop();
consumer.close();
}
int getProcessors() {
return ManagementFactory.getOperatingSystemMXBean().getAvailableProcessors();
}
private static String readScript(String scriptFile) throws IOException {
BufferedReader br = new BufferedReader(
new InputStreamReader(DTracePackage.class.
getClassLoader().getResourceAsStream(scriptFile)));
String line = null;
StringBuilder sb = new StringBuilder();
while ((line = br.readLine()) != null)
sb.append(line).append("\n"); // NOI18N
return sb.toString();
}
Consumer getConsumer() {
return consumer;
}
}