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java.lang.Object org.apache.tiles.util.WildcardHelper
public class WildcardHelper
This class is an utility class that perform wilcard-patterns matching and isolation taken from Apache Struts that is taken, in turn, from Apache Struts.
Field Summary | |
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protected static int |
MATCH_BEGIN
The int representing begin in the pattern int [] . |
protected static int |
MATCH_END
The int value that terminates the pattern int [] . |
protected static int |
MATCH_FILE
The int representing '*' in the pattern int [] . |
protected static int |
MATCH_PATH
The int representing '**' in the pattern int [] . |
protected static int |
MATCH_THEEND
The int representing end in pattern int [] . |
Constructor Summary | |
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WildcardHelper()
|
Method Summary | |
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int[] |
compilePattern(String data)
Translate the given String into a int []
representing the pattern matchable by this class. |
static String |
convertParam(String val,
Map<Integer,String> vars)
Inserts into a value wildcard-matched strings where specified. |
protected int |
indexOfArray(int[] r,
int rpos,
int rend,
char[] d,
int dpos)
Get the offset of a part of an int array within a char array. |
protected int |
lastIndexOfArray(int[] r,
int rpos,
int rend,
char[] d,
int dpos)
Get the offset of a last occurance of an int array within a char array. |
boolean |
match(Map<Integer,String> map,
String data,
int[] expr)
Match a pattern agains a string and isolates wildcard replacement into a Stack . |
protected boolean |
matchArray(int[] r,
int rpos,
int rend,
char[] d,
int dpos)
Matches elements of array r from rpos to rend with array d, starting from dpos. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected static final int MATCH_FILE
int []
.
protected static final int MATCH_PATH
int []
.
protected static final int MATCH_BEGIN
int []
.
protected static final int MATCH_THEEND
int []
.
protected static final int MATCH_END
int []
.
Constructor Detail |
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public WildcardHelper()
Method Detail |
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public int[] compilePattern(String data)
Translate the given String
into a int []
representing the pattern matchable by this class.
This function translates a String
into an int array
converting the special '*' and '\' characters.
Here is how the conversion algorithm works:
When more than two '*' characters, not separated by another character,
are found their value is considered as '**' (MATCH_PATH).
The array is always terminated by a special value (MATCH_END).
All MATCH* values are less than zero, while normal characters are equal
or greater.
data
- The string to translate.
NullPointerException
- If data is null.public boolean match(Map<Integer,String> map, String data, int[] expr)
Stack
.
map
- The map to store matched valuesdata
- The string to matchexpr
- The compiled wildcard expression
NullPointerException
- If any parameters are nullprotected int indexOfArray(int[] r, int rpos, int rend, char[] d, int dpos)
r
- The array containing the data that need to be matched in d.rpos
- The index of the first character in r to look for.rend
- The index of the last character in r to look for plus 1.d
- The array of char that should contain a part of r.dpos
- The starting offset in d for the matching.
protected int lastIndexOfArray(int[] r, int rpos, int rend, char[] d, int dpos)
r
- The array containing the data that need to be matched in d.rpos
- The index of the first character in r to look for.rend
- The index of the last character in r to look for plus 1.d
- The array of char that should contain a part of r.dpos
- The starting offset in d for the matching.
protected boolean matchArray(int[] r, int rpos, int rend, char[] d, int dpos)
r
- The array containing the data that need to be matched in d.rpos
- The index of the first character in r to look for.rend
- The index of the last character in r to look for.d
- The array of char that should start from a part of r.dpos
- The starting offset in d for the matching.
public static String convertParam(String val, Map<Integer,String> vars)
Inserts into a value wildcard-matched strings where specified.
val
- The value to convertvars
- A Map of wildcard-matched strings
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