kanela.agent.bootstrap.context

Class ContextHandler

java.lang.Object

kanela.agent.bootstrap.context.ContextHandler

public final class ContextHandler
extends java.lang.Object

ContextHandler provides methods for accessing and manipulating the context from instrumented bytecode.

ContextHandler avoids tight coupling with the concrete implementation of the context by accessing and manipulating the context through the ContextProvider interface.

Both ContextHandler and ContextProvider are loaded by the bootstrap classloader so that they can be used from classes loaded by the bootstrap classloader. A concrete implementation of ContextProvider will be loaded by the system classloader. This allows for using the same context implementation as the instrumented application.

ContextHandler is implemented as a static class to allow for easy and fast use from instrumented bytecode. We cannot use dependency injection for the instrumented bytecode.

Since:

0.10

Method Summary

Modifier and Type	Method and Description
static void	setContextProvider(ContextProvider contextProvider)
static <A> java.util.concurrent.Callable	wrapInContextAware(java.util.concurrent.Callable<A> callable)
static java.lang.Runnable	wrapInContextAware(java.lang.Runnable runnable)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

setContextProvider

public static void setContextProvider(ContextProvider contextProvider)

wrapInContextAware

public static java.lang.Runnable wrapInContextAware(java.lang.Runnable runnable)

wrapInContextAware

public static <A> java.util.concurrent.Callable wrapInContextAware(java.util.concurrent.Callable<A> callable)