jvm cpu memory 등 정보 도구 클래스 가져오기
package commons.utilsKit.VmInfo;
/**
* @author : <br/>
* Date: 13-3-4<br/>
* Time: 3:55<br/>
* connectMethod:[email protected]<br/>
*/
public class MonitorInfoBean {
/** . */
private String totalMemory;
/** . */
private String freeMemory;
/** . */
private String maxMemory;
/** . */
private String osName;
/** . */
private String totalMemorySize;
/** . */
private String freePhysicalMemorySize;
/** . */
private String usedMemory;
public String getUsedMemory() {
return usedMemory;
}
public void setUsedMemory(String usedMemory) {
this.usedMemory = usedMemory;
}
public String getFreePhysicalMemorySize() {
return freePhysicalMemorySize;
}
public void setFreePhysicalMemorySize(String freePhysicalMemorySize) {
this.freePhysicalMemorySize = freePhysicalMemorySize;
}
public String getTotalMemorySize() {
return totalMemorySize;
}
public void setTotalMemorySize(String totalMemorySize) {
this.totalMemorySize = totalMemorySize;
}
public String getFreeMemory() {
return freeMemory;
}
public void setFreeMemory(String freeMemory) {
this.freeMemory = freeMemory;
}
public String getMaxMemory() {
return maxMemory;
}
public void setMaxMemory(String maxMemory) {
this.maxMemory = maxMemory;
}
public String getTotalMemory() {
return totalMemory;
}
public void setTotalMemory(String totalMemory) {
this.totalMemory = totalMemory;
}
/** . */
private int totalThread;
public String getCpuRatio() {
return cpuRatio;
}
public void setCpuRatio(String cpuRatio) {
this.cpuRatio = cpuRatio;
}
/** cpu . */
private String cpuRatio;
public String getOsName() {
return osName;
}
public void setOsName(String osName) {
this.osName = osName;
}
public int getTotalThread() {
return totalThread;
}
public void setTotalThread(int totalThread) {
this.totalThread = totalThread;
}
}package commons.utilsKit.VmInfo;
/**
* @author : <br/>
* Date: 13-3-4<br/>
* Time: 3:56<br/>
* connectMethod:[email protected]<br/>
*/
public interface IMonitorService {
/**
* .
* @return
* @throws Exception
*/
public MonitorInfoBean getMonitorInfoBean() throws Exception;
/**
* PID
* @return
*/
int getPid();
/**
* ID
* @return "pid@hostname"
*/
String getPidHostName();
/**
* jvm
* @return
*/
long getUsedMemoryMB();
/**
* jvm
* @return
*/
long getFreeMemoryMB();
}package commons.utilsKit.VmInfo;
/**
* @author : <br/>
* Date: 13-3-4<br/>
* Time: 3:56<br/>
* connectMethod:[email protected]<br/>
*/
import com.sun.management.OperatingSystemMXBean;
import java.io.*;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.util.StringTokenizer;
public class MonitorServiceImpl implements IMonitorService {
private static final int CPUTIME = 30;
private static final int PERCENT = 100;
private static final int FAULTLENGTH = 10;
private static String linuxVersion = null;
/**
* .
*
* @return
* @throws Exception
* @author GuoHuang
*/
public MonitorInfoBean getMonitorInfoBean() throws Exception {
int kb = 1024;
//
long totalMemory = Runtime.getRuntime().totalMemory() / kb;
//
long freeMemory = Runtime.getRuntime().freeMemory() / kb;
//
long maxMemory = Runtime.getRuntime().maxMemory() / kb;
OperatingSystemMXBean osmxb = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
//
String osName = System.getProperty("os.name");
//
long totalMemorySize = osmxb.getTotalPhysicalMemorySize() / kb;
//
long freePhysicalMemorySize = osmxb.getFreePhysicalMemorySize() / kb;
//
long usedMemory = (osmxb.getTotalPhysicalMemorySize() - osmxb.getFreePhysicalMemorySize()) / kb;
//
ThreadGroup parentThread;
for (parentThread = Thread.currentThread().getThreadGroup(); parentThread.getParent() != null; parentThread = parentThread.getParent());
int totalThread = parentThread.activeCount();
double cpuRatio = 0;
if (osName.toLowerCase().startsWith("windows")) {
cpuRatio = this.getCpuRatioForWindows();
} else {
cpuRatio = getCpuRateForLinux();
}
//
MonitorInfoBean infoBean = new MonitorInfoBean();
infoBean.setFreeMemory(freeMemory/1024+"MB");
infoBean.setFreePhysicalMemorySize(freePhysicalMemorySize/1024+"MB");
infoBean.setMaxMemory(maxMemory/1024+"MB");
infoBean.setOsName(osName);
infoBean.setTotalMemory(totalMemory/1024+"MB");
infoBean.setTotalMemorySize(totalMemorySize/1024+"MB");
infoBean.setTotalThread(totalThread);
infoBean.setUsedMemory(usedMemory/1024+"MB");
infoBean.setCpuRatio(cpuRatio+"%");
return infoBean;
}
@Override
public int getPid() {
RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
String name = runtime.getName(); // format: "pid@hostname"
System.out.println("name:"+name);
try {
return Integer.parseInt(name.substring(0, name.indexOf('@')));
} catch (Exception e) {
return -1;
}
}
@Override
public String getPidHostName() {
RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
return runtime.getName(); // format: "pid@hostname"
}
@Override
public long getUsedMemoryMB() {
return (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory())/1048576; // 1024 * 1024 = 1048576;
}
@Override
public long getFreeMemoryMB() {
return Runtime.getRuntime().freeMemory()/1048576; // 1024 * 1024 = 1048576;
}
private static double getCpuRateForLinux() {
InputStream is = null;
InputStreamReader isr = null;
BufferedReader brStat = null;
StringTokenizer tokenStat = null;
try {
System.out.println("Get usage rate of CUP , linux version: " + linuxVersion);
Process process = Runtime.getRuntime().exec("top -b -n 1");
is = process.getInputStream();
isr = new InputStreamReader(is);
brStat = new BufferedReader(isr);
if (linuxVersion.equals("2.4")) {
brStat.readLine();
brStat.readLine();
brStat.readLine();
brStat.readLine();
tokenStat = new StringTokenizer(brStat.readLine());
tokenStat.nextToken();
tokenStat.nextToken();
String user = tokenStat.nextToken();
tokenStat.nextToken();
String system = tokenStat.nextToken();
tokenStat.nextToken();
String nice = tokenStat.nextToken();
System.out.println(user + " , " + system + " , " + nice);
user = user.substring(0, user.indexOf("%"));
system = system.substring(0, system.indexOf("%"));
nice = nice.substring(0, nice.indexOf("%"));
float userUsage = new Float(user).floatValue();
float systemUsage = new Float(system).floatValue();
float niceUsage = new Float(nice).floatValue();
return (userUsage + systemUsage + niceUsage) / 100;
} else {
brStat.readLine();
brStat.readLine();
tokenStat = new StringTokenizer(brStat.readLine());
tokenStat.nextToken();
tokenStat.nextToken();
tokenStat.nextToken();
tokenStat.nextToken();
tokenStat.nextToken();
tokenStat.nextToken();
tokenStat.nextToken();
String cpuUsage = tokenStat.nextToken();
System.out.println("CPU idle : " + cpuUsage);
Float usage = new Float(cpuUsage.substring(0, cpuUsage.indexOf("%")));
return (1 - usage.floatValue() / 100);
}
} catch (IOException ioe) {
System.out.println(ioe.getMessage());
freeResource(is, isr, brStat);
return 1;
} finally {
freeResource(is, isr, brStat);
}
}
private static void freeResource(InputStream is, InputStreamReader isr,
BufferedReader br) {
try {
if (is != null)
is.close();
if (isr != null)
isr.close();
if (br != null)
br.close();
} catch (IOException ioe) {
System.out.println(ioe.getMessage());
}
}
/**
* CPU .
*
* @return cpu
* @author GuoHuang
*/
private double getCpuRatioForWindows() {
try {
String procCmd = System.getenv("windir") + "\\system32\\wbem\\wmic.exe process get Caption,CommandLine,KernelModeTime,ReadOperationCount,ThreadCount,UserModeTime,WriteOperationCount";
//
long[] c0 = readCpu(Runtime.getRuntime().exec(procCmd));
Thread.sleep(CPUTIME);
long[] c1 = readCpu(Runtime.getRuntime().exec(procCmd));
if (c0 != null && c1 != null) {
long idletime = c1[0] - c0[0];
long busytime = c1[1] - c0[1];
return Double.valueOf(PERCENT * (busytime) / (busytime + idletime)).doubleValue();
} else {
return 0.0;
}
} catch (Exception ex) {
ex.printStackTrace();
return 0.0;
}
}
/**
* CPU .
* @param proc
* @return
* @author GuoHuang
*/
private long[] readCpu(final Process proc) {
long[] retn = new long[2];
try {
proc.getOutputStream().close();
InputStreamReader ir = new InputStreamReader(proc.getInputStream());
LineNumberReader input = new LineNumberReader(ir);
String line = input.readLine();
if (line == null || line.length() < FAULTLENGTH) {
return null;
}
int capidx = line.indexOf("Caption");
int cmdidx = line.indexOf("CommandLine");
int rocidx = line.indexOf("ReadOperationCount");
int umtidx = line.indexOf("UserModeTime");
int kmtidx = line.indexOf("KernelModeTime");
int wocidx = line.indexOf("WriteOperationCount");
long idletime = 0;
long kneltime = 0;
long usertime = 0;
while ((line = input.readLine()) != null) {
if (line.length() < wocidx) {
continue;
}
// ：Caption,CommandLine,KernelModeTime,ReadOperationCount,
// ThreadCount,UserModeTime,WriteOperation
String caption =line.substring( capidx, cmdidx - 1).trim();
String cmd =line.substring(cmdidx, kmtidx - 1).trim();
if (cmd.indexOf("wmic.exe") >= 0) {
continue;
}
String s1 = line.substring(kmtidx, rocidx - 1).trim();
String s2 =line.substring( umtidx, wocidx - 1).trim();
if (caption.equals("System Idle Process") || caption.equals("System")) {
if (s1.length() > 0)
idletime += Long.valueOf(s1).longValue();
if (s2.length() > 0)
idletime += Long.valueOf(s2).longValue();
continue;
}
if (s1.length() > 0)
kneltime += Long.valueOf(s1).longValue();
if (s2.length() > 0)
usertime += Long.valueOf(s2).longValue();
}
retn[0] = idletime;
retn[1] = kneltime + usertime;
return retn;
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
proc.getInputStream().close();
} catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
public static void main(String[] args) throws Exception {
IMonitorService service = new MonitorServiceImpl();
MonitorInfoBean monitorInfo = service.getMonitorInfoBean();
System.out.println("cpu =" + monitorInfo.getCpuRatio());
System.out.println(" =" + monitorInfo.getMaxMemory());
System.out.println(" =" + monitorInfo.getTotalMemory());
System.out.println(" =" + monitorInfo.getFreeMemory());
System.out.println(" =" + monitorInfo.getOsName());
System.out.println(" =" + monitorInfo.getTotalMemorySize());
System.out.println(" =" + monitorInfo.getUsedMemory());
System.out.println(" =" + monitorInfo.getFreePhysicalMemorySize());
System.out.println(" =" + monitorInfo.getTotalThread());
System.out.println("pid: " +service.getPid() );
System.out.println("FreeMemory: " + service.getFreeMemoryMB());
System.out.println("usedMemory: " + service.getUsedMemoryMB());
System.in.read(); // block the program so that we can do some probing on it
}
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