/*
* Copyright (c) 2009, 2011, 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
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package com.sun.tools.visualvm.host.remote.model;
import com.sun.tools.visualvm.application.Application;
import com.sun.tools.visualvm.application.jvm.JvmFactory;
import com.sun.tools.visualvm.core.datasupport.Stateful;
import com.sun.tools.visualvm.host.Host;
import com.sun.tools.visualvm.host.model.HostOverview;
import com.sun.tools.visualvm.tools.jmx.JmxModel;
import com.sun.tools.visualvm.tools.jmx.JmxModelFactory;
import com.sun.tools.visualvm.tools.jmx.JvmMXBeans;
import com.sun.tools.visualvm.tools.jmx.JvmMXBeansFactory;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.lang.management.OperatingSystemMXBean;
import java.lang.reflect.UndeclaredThrowableException;
import java.rmi.ConnectException;
import java.util.Properties;
import java.util.Set;
import javax.management.AttributeNotFoundException;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanException;
import javax.management.MBeanServerConnection;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.ReflectionException;
/**
*
* @author Tomas Hurka
*/
class RemoteHostOverview extends HostOverview {
private static final ObjectName osMXBeanName = getOperatingSystemMXBeanName();
private static final String TotalPhysicalMemorySizeAttr = "TotalPhysicalMemorySize"; // NOI18N
private static final String TotalPhysicalMemorySizeAttr1 = "TotalPhysicalMemory"; // NOI18N
private static final String FreePhysicalMemorySizeAttr = "FreePhysicalMemorySize"; // NOI18N
private static final String TotalSwapSpaceSizeAttr = "TotalSwapSpaceSize"; // NOI18N
private static final String FreeSwapSpaceSizeAttr = "FreeSwapSpaceSize"; // NOI18N
private volatile OperatingSystemMXBean osMXBean;
private volatile MBeanServerConnection connection;
private volatile boolean loadAverageAvailable;
private volatile Application jmxApp;
private String totalPhysicalMemorySizeAttr;
private Host remoteHost;
private boolean staticDataInitialized;
private String name;
private String version;
private String patchLevel;
private String arch;
RemoteHostOverview(Host h) {
remoteHost = h;
}
public String getName() {
initStaticData();
return name;
}
public String getVersion() {
initStaticData();
return version;
}
public String getPatchLevel() {
initStaticData();
return patchLevel;
}
public String getArch() {
initStaticData();
return arch;
}
public int getAvailableProcessors() {
checkJmxApp();
if (jmxApp == null) {
return -1;
}
try {
return osMXBean.getAvailableProcessors();
} catch (UndeclaredThrowableException ex) {
if (ex.getCause() instanceof ConnectException) {
jmxApp = null;
return getAvailableProcessors();
}
throw ex;
}
}
public String getHostName() {
return remoteHost.getHostName();
}
public double getSystemLoadAverage() {
if (loadAverageAvailable) {
checkJmxApp();
if (jmxApp == null) {
return -1;
}
try {
return osMXBean.getSystemLoadAverage();
} catch (UndeclaredThrowableException ex) {
if (ex.getCause() instanceof ConnectException) {
jmxApp = null;
return getSystemLoadAverage();
}
throw ex;
}
}
return -1;
}
public long getTotalPhysicalMemorySize() {
checkJmxApp();
if (jmxApp == null) {
return -1;
}
try {
return getAttribute(totalPhysicalMemorySizeAttr);
} catch (IOException ex) {
jmxApp = null;
return getTotalPhysicalMemorySize();
}
}
public long getFreePhysicalMemorySize() {
checkJmxApp();
if (jmxApp == null) {
return -1;
}
try {
return getAttribute(FreePhysicalMemorySizeAttr);
} catch (IOException ex) {
jmxApp = null;
return getTotalPhysicalMemorySize();
}
}
public long getTotalSwapSpaceSize() {
checkJmxApp();
if (jmxApp == null) {
return -1;
}
try {
return getAttribute(TotalSwapSpaceSizeAttr);
} catch (IOException ex) {
jmxApp = null;
return getTotalPhysicalMemorySize();
}
}
public long getFreeSwapSpaceSize() {
checkJmxApp();
if (jmxApp == null) {
return -1;
}
try {
return getAttribute(FreeSwapSpaceSizeAttr);
} catch (IOException ex) {
jmxApp = null;
return getTotalPhysicalMemorySize();
}
}
public String getHostAddress() {
return remoteHost.getInetAddress().getHostAddress();
}
private synchronized void initStaticData() {
if (staticDataInitialized) return;
checkJmxApp();
if (jmxApp == null) return;
Properties sysProp = JvmFactory.getJVMFor(jmxApp).getSystemProperties();
name = osMXBean.getName();
version = osMXBean.getVersion();
patchLevel = sysProp.getProperty("sun.os.patch.level", ""); // NOI18N
arch = osMXBean.getArch();
String bits = sysProp.getProperty("sun.arch.data.model"); // NOI18N
if (bits != null) {
arch += " "+bits+"bit"; // NOI18N
}
staticDataInitialized = true;
}
private Application getJMXApplication() {
Set<Application> apps = remoteHost.getRepository().getDataSources(Application.class);
for (Application app : apps) {
if (app.getState() != Stateful.STATE_AVAILABLE) continue;
JmxModel jmx = JmxModelFactory.getJmxModelFor(app);
if (jmx != null && jmx.getConnectionState().equals(JmxModel.ConnectionState.CONNECTED)) {
JvmMXBeans mxbeans = JvmMXBeansFactory.getJvmMXBeans(jmx);
connection = jmx.getMBeanServerConnection();
if (mxbeans != null && connection != null) {
osMXBean = mxbeans.getOperatingSystemMXBean();
loadAverageAvailable = false;
try {
loadAverageAvailable = osMXBean.getSystemLoadAverage() >= 0;
} catch (UndeclaredThrowableException ex) {
Throwable cause = ex.getCause();
if (!(cause instanceof AttributeNotFoundException)) {
throw ex;
}
}
try {
connection.getAttribute(osMXBeanName, TotalPhysicalMemorySizeAttr);
totalPhysicalMemorySizeAttr = TotalPhysicalMemorySizeAttr;
} catch (AttributeNotFoundException ex) {
totalPhysicalMemorySizeAttr = TotalPhysicalMemorySizeAttr1;
} catch (InstanceNotFoundException ex) {
throw new RuntimeException(ex);
} catch (ReflectionException ex) {
throw new RuntimeException(ex);
} catch (MBeanException ex) {
throw new RuntimeException(ex);
} catch (IOException ex) {
throw new RuntimeException(ex);
}
return app;
}
}
}
return null;
}
private synchronized void checkJmxApp() {
if (jmxApp == null || jmxApp.getState() != Stateful.STATE_AVAILABLE) {
jmxApp = getJMXApplication();
}
}
private long getAttribute(String name) throws IOException {
Object val = null;
try {
val = connection.getAttribute(osMXBeanName, name);
} catch (AttributeNotFoundException ex) {
return -1;
} catch (InstanceNotFoundException ex) {
throw new RuntimeException(ex);
} catch (MBeanException ex) {
throw new RuntimeException(ex);
} catch (ReflectionException ex) {
throw new RuntimeException(ex);
}
if (val instanceof Number) {
return ((Number)val).longValue();
}
return -1;
}
private static ObjectName getOperatingSystemMXBeanName() {
try {
return new ObjectName(ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME);
} catch (MalformedObjectNameException ex) {
throw new IllegalArgumentException(ex);
}
}
}