当前位置: 首页>>代码示例>>Java>>正文

Java AttributeList.get方法代码示例

本文整理汇总了Java中javax.management.AttributeList.get方法的典型用法代码示例。如果您正苦于以下问题：Java AttributeList.get方法的具体用法？Java AttributeList.get怎么用？Java AttributeList.get使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javax.management.AttributeList的用法示例。


在下文中一共展示了AttributeList.get方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: getProcessCpuLoad

import javax.management.AttributeList; //导入方法依赖的package包/类
public static double getProcessCpuLoad() throws Exception {

		MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
		ObjectName name = ObjectName.getInstance("java.lang:type=OperatingSystem");
		AttributeList list = mbs.getAttributes(name, new String[] { "SystemCpuLoad" });

		if (list.isEmpty())
			return Double.NaN;

		Attribute att = (Attribute) list.get(0);
		Double value = (Double) att.getValue();

		// usually takes a couple of seconds before we get real values
		if (value == -1.0)
			return Double.NaN;
		// returns a percentage value with 1 decimal point precision
		return value;
	}
开发者ID:enoy19，项目名称:keyboard-light-composer，代码行数:19，代码来源:CpuUsage.java

示例2: getCpuLoad

import javax.management.AttributeList; //导入方法依赖的package包/类
/**
 * Get CPU Load of Host System
 *
 * @author http://stackoverflow.com/questions/18489273/how-to-get-percentage-of-cpu-usage-of-os-from-java
 */
private double getCpuLoad() {
	try {
		MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
		ObjectName name = ObjectName.getInstance("java.lang:type=OperatingSystem");
		AttributeList list = mbs.getAttributes(name, new String[]{"ProcessCpuLoad"});

		if (list.isEmpty())
			return Double.NaN;

		Attribute att = (Attribute) list.get(0);
		Double value = (Double) att.getValue();

		// usually takes a couple of seconds before we get real values
		if (value == -1.0)
			return Double.NaN;
		// returns a percentage value with 1 decimal point precision
		return ((int) (value * 1000) / 10.0);
	} catch (Exception e) {
		return Double.NaN;
	}
}
开发者ID:twitch4j，项目名称:twitch4j-chatbot，代码行数:27，代码来源:Diagnostics.java

示例3: getProcessCpuLoad

import javax.management.AttributeList; //导入方法依赖的package包/类
public static double getProcessCpuLoad() {
	double cpuLoad;
	try {
		MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
		ObjectName name = ObjectName.getInstance("java.lang:type=OperatingSystem");
		AttributeList list = mbs.getAttributes(name, new String[] { "ProcessCpuLoad" });

		if(list.isEmpty()) {
			return Double.NaN;
		}

		Attribute att = (Attribute) list.get(0);
		Double value = (Double) att.getValue();

		if(value == -1.0) {
			return Double.NaN;
		}

		cpuLoad = value * 100d;
	} catch (InstanceNotFoundException | ReflectionException | MalformedObjectNameException err) {
		cpuLoad = Double.NaN;
	}

	return cpuLoad;
}
开发者ID:Shadorc，项目名称:Shadbot，代码行数:26，代码来源:Utils.java

示例4: getCpuLoad

import javax.management.AttributeList; //导入方法依赖的package包/类
private static double getCpuLoad() {
	// http://stackoverflow.com/questions/18489273/how-to-get-percentage-of-cpu-usage-of-os-from-java
	try {
		MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
		ObjectName name = ObjectName.getInstance("java.lang:type=OperatingSystem");
		AttributeList list = mbs.getAttributes(name, new String[]{ "ProcessCpuLoad" });

		if (list.isEmpty())
			return Double.NaN;

		Attribute att = (Attribute)list.get(0);
		Double value  = (Double)att.getValue();

		// usually takes a couple of seconds before we get real values
		if (value == -1.0)    
			return Double.NaN;
		// returns a percentage value with 1 decimal point precision
		return ((int)(value * 1000) / 10.0);
	} catch(Exception e) {
		return Double.NaN;
	}
}
开发者ID:paul-io，项目名称:momo-2，代码行数:23，代码来源:Diagnostics.java

示例5: getProcessCpuLoad

import javax.management.AttributeList; //导入方法依赖的package包/类
public static double getProcessCpuLoad(MBeanServerConnection mbs)
    throws MalformedObjectNameException, NullPointerException, InstanceNotFoundException,
           ReflectionException, IOException {
  ObjectName name = ObjectName.getInstance("java.lang:type=OperatingSystem");
  AttributeList list = mbs.getAttributes(name, new String[]{"ProcessCpuLoad"});

  if (list.isEmpty()) {
    return 0.0;
  }

  Attribute att = (Attribute) list.get(0);
  Double value = (Double) att.getValue();

  // usually takes a couple of seconds before we get real values
  if (value == -1.0) {
    return 0.0;
  }
  // returns a percentage value with 1 decimal point precision
  return ((int) (value * 1000) / 10.0);
}
开发者ID:pinterest，项目名称:doctorkafka，代码行数:21，代码来源:BrokerStatsRetriever.java

示例6: testReadAttributes

import javax.management.AttributeList; //导入方法依赖的package包/类
@Test
public void testReadAttributes() throws Exception {
    DynamicMBean proxy = JMX.newMBeanProxy(platformMBeanServer, threadPoolDynamicWrapperON, DynamicMBean.class);

    assertEquals(threadCount, proxy.getAttribute(THREAD_COUNT));

    assertEquals(threadPoolConfigBean.isTriggerNewInstanceCreation(),
            proxy.getAttribute(TRIGGER_NEW_INSTANCE_CREATION));

    AttributeList attributes = proxy.getAttributes(new String[] { THREAD_COUNT, TRIGGER_NEW_INSTANCE_CREATION });
    assertEquals(2, attributes.size());
    Attribute threadCountAttr = (Attribute) attributes.get(0);
    assertEquals(THREAD_COUNT, threadCountAttr.getName());
    assertEquals(threadCount, threadCountAttr.getValue());
    Attribute boolTestAttr = (Attribute) attributes.get(1);
    assertEquals(TRIGGER_NEW_INSTANCE_CREATION, boolTestAttr.getName());
    assertEquals(threadPoolConfigBean.isTriggerNewInstanceCreation(), boolTestAttr.getValue());

    MBeanInfo beanInfo = proxy.getMBeanInfo();
    assertEquals(2, beanInfo.getAttributes().length);
}
开发者ID:hashsdn，项目名称:hashsdn-controller，代码行数:22，代码来源:AbstractDynamicWrapperTest.java

示例7: getMetaData

import javax.management.AttributeList; //导入方法依赖的package包/类
public SchedulerMetaData getMetaData() throws SchedulerException {
    AttributeList attributeList = 
        getAttributes(
            new String[] {
                "schedulerName",
                "schedulerInstanceId",
                "inStandbyMode",
                "shutdown",
                "jobStoreClass",
                "threadPoolClass",
                "threadPoolSize",
                "version"
            });
    
    return new SchedulerMetaData(
            (String)attributeList.get(0),
            (String)attributeList.get(1),
            getClass(), true, isStarted(), 
            ((Boolean)attributeList.get(2)).booleanValue(), 
            ((Boolean)attributeList.get(3)).booleanValue(), 
            (Date)invoke("runningSince", new Object[] {}, new String[] {}), 
            ((Integer)invoke("numJobsExecuted", new Object[] {}, new String[] {})).intValue(),
            (Class)attributeList.get(4),
            ((Boolean)invoke("supportsPersistence", new Object[] {}, new String[] {})).booleanValue(),
            ((Boolean)invoke("isClustered", new Object[] {}, new String[] {})).booleanValue(),
            (Class)attributeList.get(5),
            ((Integer)attributeList.get(6)).intValue(),
            (String)attributeList.get(7));
}
开发者ID:AsuraTeam，项目名称:asura，代码行数:30，代码来源:RemoteMBeanScheduler.java

示例8: getAttribute

import javax.management.AttributeList; //导入方法依赖的package包/类
private Attribute getAttribute(AttributeList attributeList, int index) {
    return (Attribute)attributeList.get(index);
}
开发者ID:lamsfoundation，项目名称:lams，代码行数:4，代码来源:RemoteMBeanScheduler.java


注：本文中的javax.management.AttributeList.get方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。