Package org.apache.log4j.rule
Class LikeRule
- java.lang.Object
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- org.apache.log4j.rule.AbstractRule
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- org.apache.log4j.rule.LikeRule
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- All Implemented Interfaces:
java.io.Serializable
,Rule
public class LikeRule extends AbstractRule
A Rule class supporting java.util.regex regular expression syntax.- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description private java.lang.String
field
Field.private java.util.regex.Matcher
matcher
Regular expression matcher.private java.util.regex.Pattern
pattern
Pattern.private static LoggingEventFieldResolver
RESOLVER
Resolver.(package private) static long
serialVersionUID
Serialization ID.
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Constructor Summary
Constructors Modifier Constructor Description private
LikeRule(java.lang.String field, java.util.regex.Pattern pattern)
Create new instance.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
evaluate(org.apache.log4j.spi.LoggingEvent event, java.util.Map matches)
Returns true if this implementation of the rule accepts the LoggingEvent, or false if not.static Rule
getRule(java.lang.String field, java.lang.String pattern)
Create new instance.static Rule
getRule(java.util.Stack stack)
Create new instance from top two elements of stack.private void
readObject(java.io.ObjectInputStream in)
Deserialize the state of the object.private void
writeObject(java.io.ObjectOutputStream out)
Serialize the state of the object.-
Methods inherited from class org.apache.log4j.rule.AbstractRule
addPropertyChangeListener, firePropertyChange, firePropertyChange, removePropertyChangeListener
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Field Detail
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serialVersionUID
static final long serialVersionUID
Serialization ID.- See Also:
- Constant Field Values
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RESOLVER
private static final LoggingEventFieldResolver RESOLVER
Resolver.
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pattern
private transient java.util.regex.Pattern pattern
Pattern.
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matcher
private transient java.util.regex.Matcher matcher
Regular expression matcher.
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field
private transient java.lang.String field
Field.
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Method Detail
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getRule
public static Rule getRule(java.util.Stack stack)
Create new instance from top two elements of stack.- Parameters:
stack
- stack- Returns:
- new instance
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getRule
public static Rule getRule(java.lang.String field, java.lang.String pattern)
Create new instance.- Parameters:
field
- fieldpattern
- pattern- Returns:
- new instance
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evaluate
public boolean evaluate(org.apache.log4j.spi.LoggingEvent event, java.util.Map matches)
Returns true if this implementation of the rule accepts the LoggingEvent, or false if not.What True/False means can be client-specific.
- Parameters:
event
- LoggingEvent this instance will evaluatematches
- a Map of event field keys to Sets of matching strings (may be null) which will be updated during execution of this method to include field and string matches based on the rule evaluation results- Returns:
- true if this Rule instance accepts the event, otherwise false.
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readObject
private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException
Deserialize the state of the object.- Parameters:
in
- object input stream- Throws:
java.io.IOException
- if IOException during deserializationjava.lang.ClassNotFoundException
- if class not found.
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writeObject
private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException
Serialize the state of the object.- Parameters:
out
- object output stream- Throws:
java.io.IOException
- if IOException during serialization
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