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体验新版 GitCode,发现更多精彩内容 >>
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87b7cd63
编写于
1月 20, 2015
作者:
J
Juergen Hoeller
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差异文件
OperatorMatches caches compiled patterns
Issue: SPR-12610 (cherry picked from commit
d34402d3
)
上级
901d7d07
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
19 addition
and
6 deletion
+19
-6
spring-expression/src/main/java/org/springframework/expression/spel/ast/OperatorMatches.java
.../springframework/expression/spel/ast/OperatorMatches.java
+19
-6
未找到文件。
spring-expression/src/main/java/org/springframework/expression/spel/ast/OperatorMatches.java
浏览文件 @
87b7cd63
/*
/*
* Copyright 2002-201
4
the original author or authors.
* Copyright 2002-201
5
the original author or authors.
*
*
* Licensed under the Apache License, Version 2.0 (the "License");
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* you may not use this file except in compliance with the License.
...
@@ -16,6 +16,8 @@
...
@@ -16,6 +16,8 @@
package
org.springframework.expression.spel.ast
;
package
org.springframework.expression.spel.ast
;
import
java.util.concurrent.ConcurrentHashMap
;
import
java.util.concurrent.ConcurrentMap
;
import
java.util.regex.Matcher
;
import
java.util.regex.Matcher
;
import
java.util.regex.Pattern
;
import
java.util.regex.Pattern
;
import
java.util.regex.PatternSyntaxException
;
import
java.util.regex.PatternSyntaxException
;
...
@@ -27,15 +29,20 @@ import org.springframework.expression.spel.SpelMessage;
...
@@ -27,15 +29,20 @@ import org.springframework.expression.spel.SpelMessage;
import
org.springframework.expression.spel.support.BooleanTypedValue
;
import
org.springframework.expression.spel.support.BooleanTypedValue
;
/**
/**
* Implements the matches operator. Matches takes two operands. The first is a string and
* Implements the matches operator. Matches takes two operands:
* the second is a java regex. It will return true when getValue() is called if the first
* The first is a String and the second is a Java regex.
* operand matches the regex.
* It will return {@code true} when {@link #getValue} is called
* if the first operand matches the regex.
*
*
* @author Andy Clement
* @author Andy Clement
* @author Juergen Hoeller
* @since 3.0
* @since 3.0
*/
*/
public
class
OperatorMatches
extends
Operator
{
public
class
OperatorMatches
extends
Operator
{
private
final
ConcurrentMap
<
String
,
Pattern
>
patternCache
=
new
ConcurrentHashMap
<
String
,
Pattern
>();
public
OperatorMatches
(
int
pos
,
SpelNodeImpl
...
operands
)
{
public
OperatorMatches
(
int
pos
,
SpelNodeImpl
...
operands
)
{
super
(
"matches"
,
pos
,
operands
);
super
(
"matches"
,
pos
,
operands
);
}
}
...
@@ -66,8 +73,14 @@ public class OperatorMatches extends Operator {
...
@@ -66,8 +73,14 @@ public class OperatorMatches extends Operator {
}
}
try
{
try
{
Pattern
pattern
=
Pattern
.
compile
((
String
)
right
);
String
leftString
=
(
String
)
left
;
Matcher
matcher
=
pattern
.
matcher
((
String
)
left
);
String
rightString
=
(
String
)
right
;
Pattern
pattern
=
this
.
patternCache
.
get
(
rightString
);
if
(
pattern
==
null
)
{
pattern
=
Pattern
.
compile
(
rightString
);
this
.
patternCache
.
putIfAbsent
(
rightString
,
pattern
);
}
Matcher
matcher
=
pattern
.
matcher
(
leftString
);
return
BooleanTypedValue
.
forValue
(
matcher
.
matches
());
return
BooleanTypedValue
.
forValue
(
matcher
.
matches
());
}
}
catch
(
PatternSyntaxException
ex
)
{
catch
(
PatternSyntaxException
ex
)
{
...
...
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