Package edu.internet2.middleware.grouper.ui.util

Class NavExceptionHelper

java.lang.Object

edu.internet2.middleware.grouper.ui.util.NavExceptionHelper

All Implemented Interfaces:

Serializable

public class NavExceptionHelper
extends Object
implements Serializable

Helper class centralise some Exception handling

Version:

$Id: NavExceptionHelper.java,v 1.3 2009-08-12 04:52:14 mchyzer Exp $

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected static final org.apache.commons.logging.Log	LOG

Constructor Summary

Constructors

Constructor	Description
NavExceptionHelper()

Method Summary

Modifier and Type	Method	Description
static Exception	fillInStacktrace(Exception e)	Allows code which constructs an Exception to add a stack trace
String	getMessage(UnrecoverableErrorException cause)	UnrecoverableErrorException can have its own message key and one associated with any 'cause'.
String	key(Throwable t)	Takes class short name for Throwable and builds a key based on that.
String	missingAlternativeParameters(String... params)	Helper method takes alternate parameter / parameter name pairs and constructs a message, if any are empty, indicating what is missing
String	missingParameters(String... params)	Helper method takes alternate parameter / parameter name pairs and constructs a message, if any are empty, indicating what is missing
static String	toLog(Throwable t)	Captures the stack trace for an Exception so it can be logged

Methods inherited from class java.lang.Object

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

Field Details

LOG

protected static final org.apache.commons.logging.Log LOG

Constructor Details

NavExceptionHelper

public NavExceptionHelper()

Method Details

key

public String key(Throwable t)

Takes class short name for Throwable and builds a key based on that. If the key is not present a default catch all is used.

Parameters:

t -

Returns:

key

getMessage

public String getMessage(UnrecoverableErrorException cause)

UnrecoverableErrorException can have its own message key and one associated with any 'cause'. This method takes care of building a message based on the available keys.

Parameters:

cause -

Returns:

message

missingParameters

public String missingParameters(String... params)

Helper method takes alternate parameter / parameter name pairs and constructs a message, if any are empty, indicating what is missing

Parameters:

params -

Returns:

missing parameters

missingAlternativeParameters

public String missingAlternativeParameters(String... params)

Helper method takes alternate parameter / parameter name pairs and constructs a message, if any are empty, indicating what is missing

Parameters:

params -

Returns:

missing parameters

fillInStacktrace

public static Exception fillInStacktrace(Exception e)

Allows code which constructs an Exception to add a stack trace

Parameters:

e -

Returns:

the input Exception

toLog

public static String toLog(Throwable t)

Captures the stack trace for an Exception so it can be logged

Parameters:

t -

Returns:

the stack trace as a String