1 |
tdb |
1.1 |
//---PACKAGE DECLARATION--- |
2 |
tdb |
1.4 |
package uk.org.iscream.cms.server.util; |
3 |
tdb |
1.1 |
|
4 |
|
|
//---IMPORTS--- |
5 |
|
|
import java.util.*; |
6 |
|
|
|
7 |
|
|
/** |
8 |
|
|
* A class containing useful methods for manipulating |
9 |
|
|
* String objects. |
10 |
|
|
* |
11 |
tdb |
1.4 |
* @author $Author: tdb1 $ |
12 |
tdb |
1.5 |
* @version $Id: StringUtils.java,v 1.4 2001/05/29 17:02:35 tdb1 Exp $ |
13 |
tdb |
1.1 |
*/ |
14 |
|
|
public class StringUtils { |
15 |
|
|
|
16 |
|
|
//---FINAL ATTRIBUTES--- |
17 |
|
|
|
18 |
|
|
/** |
19 |
|
|
* The current CVS revision of this class |
20 |
|
|
*/ |
21 |
tdb |
1.5 |
public static final String REVISION = "$Revision: 1.4 $"; |
22 |
tdb |
1.1 |
|
23 |
|
|
//---STATIC METHODS--- |
24 |
|
|
|
25 |
|
|
/** |
26 |
|
|
* Searches a string and replaces all occurences |
27 |
|
|
* of the given search text with the given replacement |
28 |
|
|
* text. |
29 |
|
|
* |
30 |
|
|
* @param text the text to search and replace in |
31 |
|
|
* @param search the string to look for and replace |
32 |
|
|
* @param replace the text to replace with |
33 |
|
|
* @return the updated version of text |
34 |
|
|
*/ |
35 |
|
|
public static String replaceText(String text, String search, String replace) { |
36 |
|
|
StringBuffer textBuffer = new StringBuffer(text); |
37 |
|
|
int currIndex = 0; |
38 |
|
|
currIndex = text.indexOf(search, currIndex); |
39 |
|
|
while(currIndex != -1) { |
40 |
|
|
if (currIndex != -1) { |
41 |
|
|
textBuffer.delete(currIndex, currIndex + search.length()); |
42 |
|
|
textBuffer.insert(currIndex, replace); |
43 |
|
|
} |
44 |
|
|
text = textBuffer.toString(); |
45 |
|
|
currIndex = text.indexOf(search, currIndex + search.length()); |
46 |
|
|
} |
47 |
|
|
return new String(textBuffer); |
48 |
ajm |
1.2 |
} |
49 |
|
|
|
50 |
|
|
/** |
51 |
|
|
* This method takes an array of String's and a |
52 |
|
|
* String to look for and returns the position |
53 |
|
|
* in the array that the string occurs. |
54 |
|
|
* |
55 |
|
|
* @param search the string to look for |
56 |
|
|
* @param array the array to look in |
57 |
|
|
* |
58 |
|
|
* @return the position in the array |
59 |
|
|
*/ |
60 |
|
|
public static int getStringPos(String search, String[] array) { |
61 |
|
|
for(int x = 0; x < array.length; x++) { |
62 |
|
|
if (array[x].equals(search)) { |
63 |
|
|
return x; |
64 |
|
|
} |
65 |
|
|
} |
66 |
|
|
return -1; |
67 |
tdb |
1.5 |
} |
68 |
|
|
|
69 |
|
|
/** |
70 |
|
|
* Checks that a given string is not matched within the |
71 |
|
|
* given list of strings. For example:<br> |
72 |
|
|
* <br> |
73 |
|
|
* Given "stue5de.ukc.ac.uk"<br> |
74 |
|
|
* And "raptor.ukc.ac.uk;stue*.ukc.ac.uk<br> |
75 |
|
|
* <br> |
76 |
|
|
* This method would return true as there is a match |
77 |
|
|
* |
78 |
|
|
* @param source the string to look for |
79 |
|
|
* @param group the group to search for a wilcard entry |
80 |
|
|
* |
81 |
|
|
* @return if there is a match |
82 |
|
|
*/ |
83 |
|
|
public static boolean wildcardCheck(String source, String group) { |
84 |
|
|
boolean foundMatch = false; |
85 |
|
|
StringTokenizer st = new StringTokenizer(group, ";"); |
86 |
|
|
// go through all the hosts in the group |
87 |
|
|
while (st.hasMoreTokens()) { |
88 |
|
|
String host = st.nextToken(); |
89 |
|
|
// this host has wildcards |
90 |
|
|
if(host.indexOf("*") != -1) { |
91 |
|
|
StringTokenizer hostst = new StringTokenizer(host, "*"); |
92 |
|
|
String part = ""; |
93 |
|
|
int index = 0; |
94 |
|
|
// the first token will be everything at the start |
95 |
|
|
// unless it starts with a wildcard |
96 |
|
|
if(!host.startsWith("*")) { |
97 |
|
|
part = hostst.nextToken(); |
98 |
|
|
if (source.startsWith(part)) { |
99 |
|
|
foundMatch = true; |
100 |
|
|
index = part.length(); |
101 |
|
|
} |
102 |
|
|
// all of the start of the string is matched |
103 |
|
|
} else { |
104 |
|
|
foundMatch = true; |
105 |
|
|
} |
106 |
|
|
// if the start matched, we want to check the rest... |
107 |
|
|
if (foundMatch) { |
108 |
|
|
while (hostst.hasMoreTokens()) { |
109 |
|
|
part = hostst.nextToken(); |
110 |
|
|
// if the next section can't be matched |
111 |
|
|
// then this isn't in the source |
112 |
|
|
if(source.substring(index).indexOf(part) == -1) { |
113 |
|
|
foundMatch = false; |
114 |
|
|
// we don't want to look through any more of it |
115 |
|
|
break; |
116 |
|
|
} else { |
117 |
|
|
foundMatch = true; |
118 |
|
|
index += source.substring(index).indexOf(part) + part.length(); |
119 |
|
|
} |
120 |
|
|
} |
121 |
|
|
// if we reach here and we've found a match |
122 |
|
|
// we want to check that the last part |
123 |
|
|
// of the wildcard string is the last part |
124 |
|
|
// of the source, if it is, we break out |
125 |
|
|
// and finish as we've found a match. |
126 |
|
|
// if the end of the wildcard is a *, then |
127 |
|
|
// we don't care |
128 |
|
|
if (!host.endsWith("*") && foundMatch) { |
129 |
|
|
if ((source.endsWith(part))) { |
130 |
|
|
//_logger.write(toString(), Logger.DEBUG, "wildcard match found for - " + source + " in - " + host); |
131 |
|
|
break; |
132 |
|
|
// if there is no match, say so so we go round again |
133 |
|
|
} else { |
134 |
|
|
foundMatch = false; |
135 |
|
|
} |
136 |
|
|
} else if (foundMatch) { |
137 |
|
|
//_logger.write(toString(), Logger.DEBUG, "wildcard match found for - " + source + " in - " + host); |
138 |
|
|
break; |
139 |
|
|
} |
140 |
|
|
} |
141 |
|
|
} |
142 |
|
|
} |
143 |
|
|
return foundMatch; |
144 |
tdb |
1.1 |
} |
145 |
|
|
|
146 |
|
|
//---CONSTRUCTORS--- |
147 |
|
|
|
148 |
|
|
//---PUBLIC METHODS--- |
149 |
|
|
|
150 |
|
|
/** |
151 |
|
|
* Overrides the {@link java.lang.Object#toString() Object.toString()} |
152 |
|
|
* method to provide clean logging (every class should have this). |
153 |
|
|
* |
154 |
tdb |
1.4 |
* This uses the uk.org.iscream.cms.server.util.FormatName class |
155 |
tdb |
1.1 |
* to format the toString() |
156 |
|
|
* |
157 |
|
|
* @return the name of this class and its CVS revision |
158 |
|
|
*/ |
159 |
|
|
public String toString() { |
160 |
|
|
return FormatName.getName( |
161 |
|
|
_name, |
162 |
|
|
getClass().getName(), |
163 |
|
|
REVISION); |
164 |
|
|
} |
165 |
|
|
|
166 |
|
|
//---PRIVATE METHODS--- |
167 |
|
|
|
168 |
|
|
//---ACCESSOR/MUTATOR METHODS--- |
169 |
|
|
|
170 |
|
|
//---ATTRIBUTES--- |
171 |
|
|
|
172 |
|
|
/** |
173 |
|
|
* This is the friendly identifier of the |
174 |
|
|
* component this class is running in. |
175 |
|
|
* eg, a Filter may be called "filter1", |
176 |
|
|
* If this class does not have an owning |
177 |
|
|
* component, a name from the configuration |
178 |
|
|
* can be placed here. This name could also |
179 |
|
|
* be changed to null for utility classes. |
180 |
|
|
*/ |
181 |
|
|
private String _name = null; |
182 |
|
|
|
183 |
|
|
//---STATIC ATTRIBUTES--- |
184 |
|
|
|
185 |
|
|
} |