org.apache.commons.lang3.exception
Class DefaultExceptionContext

java.lang.Object
  org.apache.commons.lang3.exception.DefaultExceptionContext

All Implemented Interfaces:

Serializable, ExceptionContext

public class DefaultExceptionContext
extends Object
implements ExceptionContext, Serializable

Default implementation of the context storing the label-value pairs for contexted exceptions.

This implementation is serializable, however this is dependent on the values that are added also being serializable.

Since:

3.0

See Also:

ContextedException, ContextedRuntimeException, Serialized Form

Constructor Summary

DefaultExceptionContext()

Method Summary

DefaultExceptionContext	addContextValue(String label, Object value) Adds a contextual label-value pair into this context.
List<Pair<String,Object>>	getContextEntries() Retrieves the full list of label-value pairs defined in the contextual data.
Set<String>	getContextLabels() Retrieves the full set of labels defined in the contextual data.
List<Object>	getContextValues(String label) Retrieves all the contextual data values associated with the label.
Object	getFirstContextValue(String label) Retrieves the first available contextual data value associated with the label.
String	getFormattedExceptionMessage(String baseMessage) Builds the message containing the contextual information.
DefaultExceptionContext	setContextValue(String label, Object value) Sets a contextual label-value pair into this context.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultExceptionContext

public DefaultExceptionContext()

Method Detail

addContextValue

public DefaultExceptionContext addContextValue(String label,
                                               Object value)

Adds a contextual label-value pair into this context.

The pair will be added to the context, independently of an already existing pair with the same label.

Specified by:

addContextValue in interface ExceptionContext

Parameters:

label - the label of the item to add, null not recommended

value - the value of item to add, may be null

Returns:

this, for method chaining, not null

setContextValue

public DefaultExceptionContext setContextValue(String label,
                                               Object value)

Sets a contextual label-value pair into this context.

The pair will be added normally, but any existing label-value pair with the same label is removed from the context.

Specified by:

setContextValue in interface ExceptionContext

Parameters:

label - the label of the item to add, null not recommended

value - the value of item to add, may be null

Returns:

this, for method chaining, not null

getContextValues

public List<Object> getContextValues(String label)

Retrieves all the contextual data values associated with the label.

Specified by:

getContextValues in interface ExceptionContext

Parameters:

label - the label to get the contextual values for, may be null

Returns:

the contextual values associated with the label, never null

getFirstContextValue

public Object getFirstContextValue(String label)

Retrieves the first available contextual data value associated with the label.

Specified by:

getFirstContextValue in interface ExceptionContext

Parameters:

label - the label to get the contextual value for, may be null

Returns:

the first contextual value associated with the label, may be null

getContextLabels

public Set<String> getContextLabels()

Retrieves the full set of labels defined in the contextual data.

Specified by:

getContextLabels in interface ExceptionContext

Returns:

the set of labels, not null

getContextEntries

public List<Pair<String,Object>> getContextEntries()

Retrieves the full list of label-value pairs defined in the contextual data.

Specified by:

getContextEntries in interface ExceptionContext

Returns:

the list of pairs, not null

getFormattedExceptionMessage

public String getFormattedExceptionMessage(String baseMessage)

Builds the message containing the contextual information.

Specified by:

getFormattedExceptionMessage in interface ExceptionContext

Parameters:

baseMessage - the base exception message without context information appended

Returns:

the exception message with context information appended, never null