com.datadoghq.trace.agent

Class TraceAnnotationsManager

java.lang.Object

com.datadoghq.trace.agent.TraceAnnotationsManager

public class TraceAnnotationsManager
extends Object

This manager is loaded at pre-main.

It loads all the scripts contained in all the 'oatrules.btm' resource files then instrument all the methods annoted with the @Trace.

Constructor Summary

Constructors

Constructor and Description
TraceAnnotationsManager()

Method Summary

Modifier and Type	Method and Description
static void	finishInitialization(ClassLoader classLoader) This method is separated out from initialize to allow Spring Boot's LaunchedURLClassLoader to call it once it is loaded.
static void	initialize(org.jboss.byteman.agent.Retransformer trans) This method initializes the manager.
static void	loadAnnotationsRules(String... scannedPackages) Find all the methods annoted with @Trace and inject rules
static List<String>	loadRules(String rulesFileName, ClassLoader classLoader) This method loads any OpenTracing Agent rules (otarules.btm) found as resources within the supplied classloader.
static void	uninstallScripts(List<String> installedScripts, List<String> patterns) Uninstall some scripts from a list of patterns.

Methods inherited from class java.lang.Object

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

Constructor Detail

TraceAnnotationsManager

public TraceAnnotationsManager()

Method Detail

initialize

public static void initialize(org.jboss.byteman.agent.Retransformer trans)

This method initializes the manager.

Parameters:

trans - The ByteMan retransformer

finishInitialization

public static void finishInitialization(ClassLoader classLoader)

This method is separated out from initialize to allow Spring Boot's LaunchedURLClassLoader to call it once it is loaded.

Parameters:

classLoader -

uninstallScripts

public static void uninstallScripts(List<String> installedScripts,
                                    List<String> patterns)
                             throws Exception

Uninstall some scripts from a list of patterns. All the rules that contain the pattern will be uninstalled

Parameters:

patterns - not case sensitive (eg. "mongo", "apache http", "elasticsearch", etc...])

Throws:

Exception

loadRules

public static List<String> loadRules(String rulesFileName,
                                     ClassLoader classLoader)

This method loads any OpenTracing Agent rules (otarules.btm) found as resources within the supplied classloader.

Parameters:

classLoader - The classloader

loadAnnotationsRules

public static void loadAnnotationsRules(String... scannedPackages)

Find all the methods annoted with @Trace and inject rules