Class DestinationPatternsMessageCondition
- java.lang.Object
- org.springframework.messaging.handler.AbstractMessageCondition<DestinationPatternsMessageCondition>
- org.springframework.messaging.handler.DestinationPatternsMessageCondition
- All Implemented Interfaces:
MessageCondition<DestinationPatternsMessageCondition>
public class DestinationPatternsMessageCondition extends AbstractMessageCondition<DestinationPatternsMessageCondition>
AMessageCondition
for matching the destination of a Message against one or more destination patterns using aPathMatcher
.- Since:
- 4.0
- Author:
- Rossen Stoyanchev
Field Summary
Fields Modifier and Type Field Description static String
LOOKUP_DESTINATION_HEADER
Constructor Summary
Constructors Constructor Description DestinationPatternsMessageCondition(String... patterns)
Creates a new instance with the given destination patterns.DestinationPatternsMessageCondition(String[] patterns, PathMatcher pathMatcher)
Alternative constructor accepting a custom PathMatcher.
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description DestinationPatternsMessageCondition
combine(DestinationPatternsMessageCondition other)
Returns a new instance with URL patterns from the current instance ("this") and the "other" instance as follows: If there are patterns in both instances, combine the patterns in "this" with the patterns in "other" usingPathMatcher.combine(String, String)
.int
compareTo(DestinationPatternsMessageCondition other, Message<?> message)
Compare the two conditions based on the destination patterns they contain.protected Collection<String>
getContent()
Return the collection of objects the message condition is composed of (e.g.DestinationPatternsMessageCondition
getMatchingCondition(Message<?> message)
Check if any of the patterns match the given Message destination and return an instance that is guaranteed to contain matching patterns, sorted viaPathMatcher.getPatternComparator(String)
.Set<String>
getPatterns()
protected String
getToStringInfix()
The notation to use when printing discrete items of content.Methods inherited from class org.springframework.messaging.handler.AbstractMessageCondition
equals, hashCode, toString
Field Detail
LOOKUP_DESTINATION_HEADER
public static final String LOOKUP_DESTINATION_HEADER
- See Also:
- Constant Field Values
Constructor Detail
DestinationPatternsMessageCondition
public DestinationPatternsMessageCondition(String... patterns)
Creates a new instance with the given destination patterns. Each pattern that is not empty and does not start with "/" is prepended with "/".- Parameters:
patterns
- 0 or more URL patterns; if 0 the condition will match to every request.
DestinationPatternsMessageCondition
public DestinationPatternsMessageCondition(String[] patterns, PathMatcher pathMatcher)
Alternative constructor accepting a custom PathMatcher.- Parameters:
patterns
- the URL patterns to use; if 0, the condition will match to every request.pathMatcher
- the PathMatcher to use
Method Detail
getPatterns
public Set<String> getPatterns()
getContent
protected Collection<String> getContent()
Description copied from class:AbstractMessageCondition
Return the collection of objects the message condition is composed of (e.g. destination patterns), nevernull
.- Specified by:
getContent
in classAbstractMessageCondition<DestinationPatternsMessageCondition>
getToStringInfix
protected String getToStringInfix()
Description copied from class:AbstractMessageCondition
The notation to use when printing discrete items of content. For example " || " for URL patterns or " && " for param expressions.- Specified by:
getToStringInfix
in classAbstractMessageCondition<DestinationPatternsMessageCondition>
combine
public DestinationPatternsMessageCondition combine(DestinationPatternsMessageCondition other)
Returns a new instance with URL patterns from the current instance ("this") and the "other" instance as follows:- If there are patterns in both instances, combine the patterns in "this" with the patterns in "other" using
PathMatcher.combine(String, String)
. - If only one instance has patterns, use them.
- If neither instance has patterns, use an empty String (i.e. "").
- Parameters:
other
- the condition to combine with- Returns:
- the resulting message condition
- If there are patterns in both instances, combine the patterns in "this" with the patterns in "other" using
getMatchingCondition
public DestinationPatternsMessageCondition getMatchingCondition(Message<?> message)
Check if any of the patterns match the given Message destination and return an instance that is guaranteed to contain matching patterns, sorted viaPathMatcher.getPatternComparator(String)
.- Parameters:
message
- the message to match to- Returns:
- the same instance if the condition contains no patterns; or a new condition with sorted matching patterns; or
null
either if a destination can not be extracted or there is no match
compareTo
public int compareTo(DestinationPatternsMessageCondition other, Message<?> message)
Compare the two conditions based on the destination patterns they contain. Patterns are compared one at a time, from top to bottom viaPathMatcher.getPatternComparator(String)
. If all compared patterns match equally, but one instance has more patterns, it is considered a closer match.It is assumed that both instances have been obtained via
getMatchingCondition(Message)
to ensure they contain only patterns that match the request and are sorted with the best matches on top.