当前位置: 首页>>代码示例>>Java>>正文


Java DTraceProviderFactory类代码示例

本文整理汇总了Java中sun.tracing.dtrace.DTraceProviderFactory的典型用法代码示例。如果您正苦于以下问题:Java DTraceProviderFactory类的具体用法?Java DTraceProviderFactory怎么用?Java DTraceProviderFactory使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。


DTraceProviderFactory类属于sun.tracing.dtrace包,在下文中一共展示了DTraceProviderFactory类的1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: getDefaultFactory

import sun.tracing.dtrace.DTraceProviderFactory; //导入依赖的package包/类
/**
 * Returns an implementation of a {@code ProviderFactory} which
 * creates instances of Providers.
 *
 * The created Provider instances will be linked to all appropriate
 * and enabled system-defined tracing mechanisms in the JDK.
 *
 * @return a {@code ProviderFactory} that is used to create Providers.
 */
public static ProviderFactory getDefaultFactory() {
    HashSet<ProviderFactory> factories = new HashSet<ProviderFactory>();

    // Try to instantiate a DTraceProviderFactory
    String prop = AccessController.doPrivileged(
        new GetPropertyAction("com.sun.tracing.dtrace"));

    if ( (prop == null || !prop.equals("disable")) &&
         DTraceProviderFactory.isSupported() ) {
        factories.add(new DTraceProviderFactory());
    }

    // Try to instantiate an output stream factory
    prop = AccessController.doPrivileged(
        new GetPropertyAction("sun.tracing.stream"));
    if (prop != null) {
        for (String spec : prop.split(",")) {
            PrintStream ps = getPrintStreamFromSpec(spec);
            if (ps != null) {
                factories.add(new PrintStreamProviderFactory(ps));
            }
        }
    }

    // See how many factories we instantiated, and return an appropriate
    // factory that encapsulates that.
    if (factories.size() == 0) {
        return new NullProviderFactory();
    } else if (factories.size() == 1) {
        return factories.toArray(new ProviderFactory[1])[0];
    } else {
        return new MultiplexProviderFactory(factories);
    }
}
 
开发者ID:SunburstApps,项目名称:OpenJSharp,代码行数:44,代码来源:ProviderFactory.java


注:本文中的sun.tracing.dtrace.DTraceProviderFactory类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。