Package org.apache.log4j.helpers

Class MessageFormatter

java.lang.Object

org.apache.log4j.helpers.MessageFormatter

public class MessageFormatter
extends Object

Formats messages according to very simple rules. See format(String, Object) and format(String, Object, Object) for more details.

Author:

Ceki Gülcü

Constructor Summary

Constructors

Constructor	Description
MessageFormatter()

Method Summary

Modifier and Type	Method	Description
static String	format(String messagePattern, Object argument)	Performs single argument substitution for the 'messagePattern' passed as parameter.
static String	format(String messagePattern, Object arg1, Object arg2)	/** Performs a two argument substitution for the 'messagePattern' passed as parameter.

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageFormatter

public MessageFormatter()

Method Detail

format

public static String format(String messagePattern,
                            Object argument)

Performs single argument substitution for the 'messagePattern' passed as parameter.

For example, MessageFormatter.format("Hi {}.", "there"); will return the string "Hi there.".

The {} pair is called the formatting element. It serves to designate the location where the argument needs to be inserted within the pattern.

Parameters:

messagePattern - The message pattern which will be parsed and formatted

argument - The argument to be inserted instead of the formatting element

Returns:

The formatted message

format

public static String format(String messagePattern,
                            Object arg1,
                            Object arg2)

/** Performs a two argument substitution for the 'messagePattern' passed as parameter.

For example, MessageFormatter.format("Hi {}. My name is {}.", "there", "David"); will return the string "Hi there. My name is David.".

The '{}' pair is called a formatting element. It serves to designate the location where the arguments need to be inserted within the message pattern.

Parameters:

messagePattern - The message pattern which will be parsed and formatted

arg1 - The first argument to replace the first formatting element

arg2 - The second argument to replace the second formatting element

Returns:

The formatted message