org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance

Class ClassEnhancePluginDefine

java.lang.Object

org.apache.skywalking.apm.agent.core.plugin.AbstractClassEnhancePluginDefine

org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.ClassEnhancePluginDefine

Direct Known Subclasses:

ClassInstanceMethodsEnhancePluginDefine, ClassStaticMethodsEnhancePluginDefine

public abstract class ClassEnhancePluginDefine
extends AbstractClassEnhancePluginDefine

This class controls all enhance operations, including enhance constructors, instance methods and static methods. All the enhances base on three types interceptor point: ConstructorInterceptPoint, InstanceMethodsInterceptPoint and StaticMethodsInterceptPoint If plugin is going to enhance constructors, instance methods, or both, ClassEnhancePluginDefine will add a field of Object type.

Author:

wusheng

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONTEXT_ATTR_NAME New field name.

Constructor Summary

Constructors

Constructor and Description
ClassEnhancePluginDefine()

Method Summary

Modifier and Type	Method and Description
protected net.bytebuddy.dynamic.DynamicType.Builder<?>	enhance(net.bytebuddy.description.type.TypeDescription typeDescription, net.bytebuddy.dynamic.DynamicType.Builder<?> newClassBuilder, ClassLoader classLoader, EnhanceContext context) Begin to define how to enhance class.

Methods inherited from class org.apache.skywalking.apm.agent.core.plugin.AbstractClassEnhancePluginDefine

define, enhanceClass, getConstructorsInterceptPoints, getInstanceMethodsInterceptPoints, getStaticMethodsInterceptPoints, isBootstrapInstrumentation, witnessClasses

Methods inherited from class java.lang.Object

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

Field Detail

CONTEXT_ATTR_NAME

public static final String CONTEXT_ATTR_NAME

New field name.

See Also:

Constant Field Values

Constructor Detail

ClassEnhancePluginDefine

public ClassEnhancePluginDefine()

Method Detail

enhance

protected net.bytebuddy.dynamic.DynamicType.Builder<?> enhance(net.bytebuddy.description.type.TypeDescription typeDescription,
                                                               net.bytebuddy.dynamic.DynamicType.Builder<?> newClassBuilder,
                                                               ClassLoader classLoader,
                                                               EnhanceContext context)
                                                        throws PluginException

Begin to define how to enhance class. After invoke this method, only means definition is finished.

Specified by:

enhance in class AbstractClassEnhancePluginDefine

Parameters:

typeDescription - target class description

newClassBuilder - byte-buddy's builder to manipulate class bytecode.

Returns:

new byte-buddy's builder for further manipulation.

Throws:

PluginException