org.codehaus.groovy.runtime

Class StackTraceUtils

java.lang.Object

org.codehaus.groovy.runtime.StackTraceUtils

public class StackTraceUtils
extends java.lang.Object

Originally was grails.utils.GrailsUtils, removed some grails specific stuff. Utility methods removing internal lines from stack traces

Since:

1.5

Author:

Graeme Rocher

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	STACK_LOG_NAME

Constructor Summary

Constructors

Constructor and Description
StackTraceUtils()

Method Summary

Modifier and Type	Method and Description
static void	addClassTest(Closure test) Adds a groovy.lang.Closure to test whether the stack trace element should be added or not.
static java.lang.Throwable	deepSanitize(java.lang.Throwable t) Sanitize the exception and ALL nested causes
static java.lang.Throwable	extractRootCause(java.lang.Throwable t) Extracts the root cause of the exception, no matter how nested it is
static boolean	isApplicationClass(java.lang.String className)
static void	printSanitizedStackTrace(java.lang.Throwable t)
static void	printSanitizedStackTrace(java.lang.Throwable t, java.io.PrintWriter p)
static java.lang.Throwable	sanitize(java.lang.Throwable t) Remove all apparently groovy-internal trace entries from the exception instance
static java.lang.Throwable	sanitizeRootCause(java.lang.Throwable t) Get the root cause of an exception and sanitize it for display to the user

Methods inherited from class java.lang.Object

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

Field Detail

STACK_LOG_NAME

public static final java.lang.String STACK_LOG_NAME

See Also:

Constant Field Values

Constructor Detail

StackTraceUtils

public StackTraceUtils()

Method Detail

addClassTest

public static void addClassTest(Closure test)

Adds a groovy.lang.Closure to test whether the stack trace element should be added or not.

The groovy.lang.Closure will be given the class name as parameter. the return value decides if the element will be added or not.

• true - trace element will be added to the trace
• false - trace element will not be added to the trace
• null - continue with next test

Groovy truth will be used to determine true and false, null is excluded from defaulting to false here. If all tests have been executed and all of them skipped, then the groovy standard filtering will take place.

Parameters:

test - the testing groovy.lang.Closure

sanitize

public static java.lang.Throwable sanitize(java.lang.Throwable t)

Remove all apparently groovy-internal trace entries from the exception instance

This modifies the original instance and returns it, it does not clone

Parameters:

t - the Throwable whose stack trace we want to sanitize

Returns:

The original Throwable but with a sanitized stack trace

printSanitizedStackTrace

public static void printSanitizedStackTrace(java.lang.Throwable t,
                                            java.io.PrintWriter p)

printSanitizedStackTrace

public static void printSanitizedStackTrace(java.lang.Throwable t)

isApplicationClass

public static boolean isApplicationClass(java.lang.String className)

extractRootCause

public static java.lang.Throwable extractRootCause(java.lang.Throwable t)

Extracts the root cause of the exception, no matter how nested it is

Parameters:

t - a Throwable

Returns:

The deepest cause of the exception that can be found

sanitizeRootCause

public static java.lang.Throwable sanitizeRootCause(java.lang.Throwable t)

Get the root cause of an exception and sanitize it for display to the user

This will MODIFY the stacktrace of the root cause exception object and return it

Parameters:

t - a throwable

Returns:

The root cause exception instance, with its stace trace modified to filter out groovy runtime classes

deepSanitize

public static java.lang.Throwable deepSanitize(java.lang.Throwable t)

Sanitize the exception and ALL nested causes

This will MODIFY the stacktrace of the exception instance and all its causes irreversibly

Parameters:

t - a throwable

Returns:

The root cause exception instances, with stack trace modified to filter out groovy runtime classes