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  5. java.lang.management.MemoryUsage#from ( )

java.lang.management.MemoryUsage#from ( )源码实例Demo

下面列出了java.lang.management.MemoryUsage#from ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： openjdk-8   文件： MemoryUsageCompositeData.java 
public static void badTypeCompositeData() throws Exception {
    final int K = 1024;
    final Object[] values = {
        new Integer(5 * K),
        new Long(1 * K),
        new Long(10 * K),
        new Long(2 * K),
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          badMUItemTypes);
    CompositeData cd =
       new CompositeDataSupport(muct,
                                memoryUsageItemNames,
                                values);
    try {
        MemoryUsage u = MemoryUsage.from(cd);
    } catch (IllegalArgumentException e) {
        System.out.println("Expected exception: " +
            e.getMessage());
        return;
    }
    throw new RuntimeException(
        "IllegalArgumentException not thrown");
}
源代码2 项目： openjdk-jdk8u   文件： MemoryUsageCompositeData.java 
public static void badTypeCompositeData() throws Exception {
    final int K = 1024;
    final Object[] values = {
        new Integer(5 * K),
        new Long(1 * K),
        new Long(10 * K),
        new Long(2 * K),
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          badMUItemTypes);
    CompositeData cd =
       new CompositeDataSupport(muct,
                                memoryUsageItemNames,
                                values);
    try {
        MemoryUsage u = MemoryUsage.from(cd);
    } catch (IllegalArgumentException e) {
        System.out.println("Expected exception: " +
            e.getMessage());
        return;
    }
    throw new RuntimeException(
        "IllegalArgumentException not thrown");
}
源代码3 项目： baratine   文件： MemoryPoolAdapter.java 
public long getEdenFree()
  throws JMException
{
  CompositeData data
    = (CompositeData) _mbeanServer.getAttribute(getEdenName(), "Usage");

  MemoryUsage usage = MemoryUsage.from(data);

  return usage.getMax() - usage.getUsed();
}
源代码4 项目： dragonwell8_jdk   文件： MemoryUsageCompositeData.java 
public static void badNameCompositeData() throws Exception {
    final int K = 1024;
    final Object[] values = {
        new Long(5 * K),
        new Long(1 * K),
        new Long(10 * K),
        new Long(2 * K),
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                           badMUItemNames,
                           badMUItemNames,
                           memoryUsageItemTypes);
    CompositeData cd =
        new CompositeDataSupport(muct,
                                 badMUItemNames,
                                 values);
    try {
        MemoryUsage u = MemoryUsage.from(cd);
    } catch (IllegalArgumentException e) {
        System.out.println("Expected exception: " +
            e.getMessage());
        return;
    }
    throw new RuntimeException(
        "IllegalArgumentException not thrown");
}
源代码5 项目： baratine   文件： MemoryPoolAdapter.java 
public long getEdenCommitted()
  throws JMException
{
  CompositeData data
    = (CompositeData) _mbeanServer.getAttribute(getEdenName(), "Usage");

  MemoryUsage usage = MemoryUsage.from(data);

  return usage.getCommitted();
}
源代码6 项目： openjdk-jdk8u-backup   文件： MemoryUsageCompositeData.java 
public static void badTypeCompositeData() throws Exception {
    final int K = 1024;
    final Object[] values = {
        new Integer(5 * K),
        new Long(1 * K),
        new Long(10 * K),
        new Long(2 * K),
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          badMUItemTypes);
    CompositeData cd =
       new CompositeDataSupport(muct,
                                memoryUsageItemNames,
                                values);
    try {
        MemoryUsage u = MemoryUsage.from(cd);
    } catch (IllegalArgumentException e) {
        System.out.println("Expected exception: " +
            e.getMessage());
        return;
    }
    throw new RuntimeException(
        "IllegalArgumentException not thrown");
}
源代码7 项目： openjdk-jdk8u-backup   文件： MemoryUsageCompositeData.java 
public static void badNameCompositeData() throws Exception {
    final int K = 1024;
    final Object[] values = {
        new Long(5 * K),
        new Long(1 * K),
        new Long(10 * K),
        new Long(2 * K),
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                           badMUItemNames,
                           badMUItemNames,
                           memoryUsageItemTypes);
    CompositeData cd =
        new CompositeDataSupport(muct,
                                 badMUItemNames,
                                 values);
    try {
        MemoryUsage u = MemoryUsage.from(cd);
    } catch (IllegalArgumentException e) {
        System.out.println("Expected exception: " +
            e.getMessage());
        return;
    }
    throw new RuntimeException(
        "IllegalArgumentException not thrown");
}
源代码8 项目： baratine   文件： MemoryPoolAdapter.java 
public long getTenuredMax()
  throws JMException
{
  CompositeData data
    = (CompositeData) _mbeanServer.getAttribute(getTenuredName(), "Usage");

  MemoryUsage usage = MemoryUsage.from(data);

  return usage.getMax();
}
源代码9 项目： jdk8u-dev-jdk   文件： MemoryUsageCompositeData.java 
public static void badNameCompositeData() throws Exception {
    final int K = 1024;
    final Object[] values = {
        new Long(5 * K),
        new Long(1 * K),
        new Long(10 * K),
        new Long(2 * K),
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                           badMUItemNames,
                           badMUItemNames,
                           memoryUsageItemTypes);
    CompositeData cd =
        new CompositeDataSupport(muct,
                                 badMUItemNames,
                                 values);
    try {
        MemoryUsage u = MemoryUsage.from(cd);
    } catch (IllegalArgumentException e) {
        System.out.println("Expected exception: " +
            e.getMessage());
        return;
    }
    throw new RuntimeException(
        "IllegalArgumentException not thrown");
}
源代码10 项目： jdk8u60   文件： MemoryUsageCompositeData.java 
public static void badTypeCompositeData() throws Exception {
    final int K = 1024;
    final Object[] values = {
        new Integer(5 * K),
        new Long(1 * K),
        new Long(10 * K),
        new Long(2 * K),
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          badMUItemTypes);
    CompositeData cd =
       new CompositeDataSupport(muct,
                                memoryUsageItemNames,
                                values);
    try {
        MemoryUsage u = MemoryUsage.from(cd);
    } catch (IllegalArgumentException e) {
        System.out.println("Expected exception: " +
            e.getMessage());
        return;
    }
    throw new RuntimeException(
        "IllegalArgumentException not thrown");
}
源代码11 项目： openjdk-jdk9   文件： MemoryUsageCompositeData.java 
public static void badTypeCompositeData() throws Exception {
    final int K = 1024;
    final Object[] values = {
        new Integer(5 * K),
        new Long(1 * K),
        new Long(10 * K),
        new Long(2 * K),
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          badMUItemTypes);
    CompositeData cd =
       new CompositeDataSupport(muct,
                                memoryUsageItemNames,
                                values);
    try {
        MemoryUsage u = MemoryUsage.from(cd);
    } catch (IllegalArgumentException e) {
        System.out.println("Expected exception: " +
            e.getMessage());
        return;
    }
    throw new RuntimeException(
        "IllegalArgumentException not thrown");
}
源代码12 项目： jdk8u_jdk   文件： MemoryUsageCompositeData.java 
public static void createGoodCompositeData() throws Exception {
    final int K = 1024;
    // these values are synchronized with the item names
    final Object[] values = {
        new Long(5 * K),  // committed
        new Long(1 * K),  // init
        new Long(10 * K), // max
        new Long(2 * K),  // used
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          memoryUsageItemTypes);
    CompositeData cd =
        new CompositeDataSupport(muct,
                                 memoryUsageItemNames,
                                 values);
    MemoryUsage u = MemoryUsage.from(cd);
    if (u.getInit() != ((Long) values[INIT]).longValue()) {
        throw new RuntimeException("init = " + u.getInit() +
           " expected = " + values[INIT]);
    }
    if (u.getUsed() != ((Long) values[USED]).longValue()) {
        throw new RuntimeException("used = " + u.getUsed() +
           " expected = " + values[USED]);
    }
    if (u.getCommitted() != ((Long) values[COMMITTED]).longValue()) {
        throw new RuntimeException("committed = " + u.getCommitted() +
           " expected = " + values[COMMITTED]);
    }
    if (u.getMax() != ((Long) values[MAX]).longValue()) {
        throw new RuntimeException("max = " + u.getMax() +
           " expected = " + values[MAX]);
    }
    System.out.println(u);
}
源代码13 项目： hottub   文件： MemoryUsageCompositeData.java 
public static void createGoodCompositeData() throws Exception {
    final int K = 1024;
    // these values are synchronized with the item names
    final Object[] values = {
        new Long(5 * K),  // committed
        new Long(1 * K),  // init
        new Long(10 * K), // max
        new Long(2 * K),  // used
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          memoryUsageItemTypes);
    CompositeData cd =
        new CompositeDataSupport(muct,
                                 memoryUsageItemNames,
                                 values);
    MemoryUsage u = MemoryUsage.from(cd);
    if (u.getInit() != ((Long) values[INIT]).longValue()) {
        throw new RuntimeException("init = " + u.getInit() +
           " expected = " + values[INIT]);
    }
    if (u.getUsed() != ((Long) values[USED]).longValue()) {
        throw new RuntimeException("used = " + u.getUsed() +
           " expected = " + values[USED]);
    }
    if (u.getCommitted() != ((Long) values[COMMITTED]).longValue()) {
        throw new RuntimeException("committed = " + u.getCommitted() +
           " expected = " + values[COMMITTED]);
    }
    if (u.getMax() != ((Long) values[MAX]).longValue()) {
        throw new RuntimeException("max = " + u.getMax() +
           " expected = " + values[MAX]);
    }
    System.out.println(u);
}
源代码14 项目： dragonwell8_jdk   文件： MemoryNotifInfoCompositeData.java 
public static MemoryUsage getUsage(CompositeData cd) {
    CompositeData usageData = (CompositeData) cd.get(USAGE);
    return MemoryUsage.from(usageData);
}
源代码15 项目： openjdk-8-source   文件： MemoryUsageCompositeData.java 
public static void createGoodCompositeData() throws Exception {
    final int K = 1024;
    // these values are synchronized with the item names
    final Object[] values = {
        new Long(5 * K),  // committed
        new Long(1 * K),  // init
        new Long(10 * K), // max
        new Long(2 * K),  // used
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          memoryUsageItemTypes);
    CompositeData cd =
        new CompositeDataSupport(muct,
                                 memoryUsageItemNames,
                                 values);
    MemoryUsage u = MemoryUsage.from(cd);
    if (u.getInit() != ((Long) values[INIT]).longValue()) {
        throw new RuntimeException("init = " + u.getInit() +
           " expected = " + values[INIT]);
    }
    if (u.getUsed() != ((Long) values[USED]).longValue()) {
        throw new RuntimeException("used = " + u.getUsed() +
           " expected = " + values[USED]);
    }
    if (u.getCommitted() != ((Long) values[COMMITTED]).longValue()) {
        throw new RuntimeException("committed = " + u.getCommitted() +
           " expected = " + values[COMMITTED]);
    }
    if (u.getMax() != ((Long) values[MAX]).longValue()) {
        throw new RuntimeException("max = " + u.getMax() +
           " expected = " + values[MAX]);
    }
    System.out.println(u);
}
源代码16 项目： jdk8u-jdk   文件： MemoryUsageCompositeData.java 
public static void createGoodCompositeData() throws Exception {
    final int K = 1024;
    // these values are synchronized with the item names
    final Object[] values = {
        new Long(5 * K),  // committed
        new Long(1 * K),  // init
        new Long(10 * K), // max
        new Long(2 * K),  // used
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          memoryUsageItemTypes);
    CompositeData cd =
        new CompositeDataSupport(muct,
                                 memoryUsageItemNames,
                                 values);
    MemoryUsage u = MemoryUsage.from(cd);
    if (u.getInit() != ((Long) values[INIT]).longValue()) {
        throw new RuntimeException("init = " + u.getInit() +
           " expected = " + values[INIT]);
    }
    if (u.getUsed() != ((Long) values[USED]).longValue()) {
        throw new RuntimeException("used = " + u.getUsed() +
           " expected = " + values[USED]);
    }
    if (u.getCommitted() != ((Long) values[COMMITTED]).longValue()) {
        throw new RuntimeException("committed = " + u.getCommitted() +
           " expected = " + values[COMMITTED]);
    }
    if (u.getMax() != ((Long) values[MAX]).longValue()) {
        throw new RuntimeException("max = " + u.getMax() +
           " expected = " + values[MAX]);
    }
    System.out.println(u);
}
源代码17 项目： jdk8u-dev-jdk   文件： MemoryUsageCompositeData.java 
public static void createGoodCompositeData() throws Exception {
    final int K = 1024;
    // these values are synchronized with the item names
    final Object[] values = {
        new Long(5 * K),  // committed
        new Long(1 * K),  // init
        new Long(10 * K), // max
        new Long(2 * K),  // used
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          memoryUsageItemTypes);
    CompositeData cd =
        new CompositeDataSupport(muct,
                                 memoryUsageItemNames,
                                 values);
    MemoryUsage u = MemoryUsage.from(cd);
    if (u.getInit() != ((Long) values[INIT]).longValue()) {
        throw new RuntimeException("init = " + u.getInit() +
           " expected = " + values[INIT]);
    }
    if (u.getUsed() != ((Long) values[USED]).longValue()) {
        throw new RuntimeException("used = " + u.getUsed() +
           " expected = " + values[USED]);
    }
    if (u.getCommitted() != ((Long) values[COMMITTED]).longValue()) {
        throw new RuntimeException("committed = " + u.getCommitted() +
           " expected = " + values[COMMITTED]);
    }
    if (u.getMax() != ((Long) values[MAX]).longValue()) {
        throw new RuntimeException("max = " + u.getMax() +
           " expected = " + values[MAX]);
    }
    System.out.println(u);
}
源代码18 项目： jdk8u-jdk   文件： MemoryNotifInfoCompositeData.java 
public static MemoryUsage getUsage(CompositeData cd) {
    CompositeData usageData = (CompositeData) cd.get(USAGE);
    return MemoryUsage.from(usageData);
}
源代码19 项目： openjdk-8   文件： MemoryUsageCompositeData.java 
public static void createGoodCompositeData() throws Exception {
    final int K = 1024;
    // these values are synchronized with the item names
    final Object[] values = {
        new Long(5 * K),  // committed
        new Long(1 * K),  // init
        new Long(10 * K), // max
        new Long(2 * K),  // used
        "Dummy",
        "Dummy",
    };

    CompositeType muct =
        new CompositeType("MyMemoryUsageCompositeType",
                          "CompositeType for MemoryUsage",
                          memoryUsageItemNames,
                          memoryUsageItemNames,
                          memoryUsageItemTypes);
    CompositeData cd =
        new CompositeDataSupport(muct,
                                 memoryUsageItemNames,
                                 values);
    MemoryUsage u = MemoryUsage.from(cd);
    if (u.getInit() != ((Long) values[INIT]).longValue()) {
        throw new RuntimeException("init = " + u.getInit() +
           " expected = " + values[INIT]);
    }
    if (u.getUsed() != ((Long) values[USED]).longValue()) {
        throw new RuntimeException("used = " + u.getUsed() +
           " expected = " + values[USED]);
    }
    if (u.getCommitted() != ((Long) values[COMMITTED]).longValue()) {
        throw new RuntimeException("committed = " + u.getCommitted() +
           " expected = " + values[COMMITTED]);
    }
    if (u.getMax() != ((Long) values[MAX]).longValue()) {
        throw new RuntimeException("max = " + u.getMax() +
           " expected = " + values[MAX]);
    }
    System.out.println(u);
}
源代码20 项目： openjdk-jdk9   文件： MemoryNotifInfoCompositeData.java 
public static MemoryUsage getUsage(CompositeData cd) {
    CompositeData usageData = (CompositeData) cd.get(USAGE);
    return MemoryUsage.from(usageData);
}
 方法所在类
java.lang.management.MemoryUsage
 同类方法
getMax ( )
getUsed ( )
getCommitted ( )
from ( )
getInit ( )