Package org.apache.pulsar.common.topics

Class TopicsPatternFactory

java.lang.Object

org.apache.pulsar.common.topics.TopicsPatternFactory

public class TopicsPatternFactory
extends Object

Factory class for creating instances of TopicsPattern based on different regex implementations. It supports JDK regex, RE2J regex, and a fallback mechanism for RE2J with JDK.

Constructor Summary

Constructors

Constructor	Description
TopicsPatternFactory()

Method Summary

Modifier and Type	Method	Description
static TopicsPattern	create(String regex, TopicsPattern.RegexImplementation implementation)	Creates a TopicsPattern from a regex string, using the specified regex implementation.
static TopicsPattern	create(Pattern jdkPattern)	Creates a TopicsPattern from a JDK Pattern.
static TopicsPattern	matchAll()	Creates a TopicsPattern that matches all topics.

Methods inherited from class java.lang.Object

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

Constructor Details

TopicsPatternFactory

public TopicsPatternFactory()

Method Details

create

public static TopicsPattern create(Pattern jdkPattern)

Creates a TopicsPattern from a JDK Pattern. If the pattern contains the topic domain scheme, it will be removed and a RE2J_WITH_JDK_FALLBACK implementation will be used. If the pattern does not contain the topic domain scheme, the input JDK Pattern instance will be used to evaluate topic name matches. The Pulsar Java Client will use this method to create a TopicsPattern from a JDK Pattern.

Parameters:

jdkPattern - the JDK Pattern to create the TopicsPattern from

Returns:

a TopicsPattern instance

create

public static TopicsPattern create(String regex,
 TopicsPattern.RegexImplementation implementation)

Creates a TopicsPattern from a regex string, using the specified regex implementation. The Pulsar Broker will use this method to create a TopicsPattern from a regex string. The implementation is configured in the broker configuration file with the `topicsPatternRegexImplementation` property.

Parameters:

regex - the regex string to create the TopicsPattern from

implementation - the regex implementation to use (RE2J, JDK, or RE2J_WITH_JDK_FALLBACK)

Returns:

a TopicsPattern instance

matchAll

public static TopicsPattern matchAll()

Creates a TopicsPattern that matches all topics.

Returns:

a TopicsPattern instance that matches all topics