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root/i-scream/projects/cms/source/util/uk/org/iscream/cms/util/StringUtils.java

Comparing projects/cms/source/util/uk/org/iscream/cms/util/StringUtils.java (file contents):
Revision 1.5 by tdb, Mon Dec 10 22:49:19 2001 UTC vs.
Revision 1.9 by tdb, Wed Feb 5 14:27:59 2003 UTC

#	Line 1 | Line 1
1	+	/*
2	+	* i-scream central monitoring system
3	+	* http://www.i-scream.org.uk
4	+	* Copyright (C) 2000-2002 i-scream
5	+	*
6	+	* This program is free software; you can redistribute it and/or
7	+	* modify it under the terms of the GNU General Public License
8	+	* as published by the Free Software Foundation; either version 2
9	+	* of the License, or (at your option) any later version.
10	+	*
11	+	* This program is distributed in the hope that it will be useful,
12	+	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	+	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14	+	* GNU General Public License for more details.
15	+	*
16	+	* You should have received a copy of the GNU General Public License
17	+	* along with this program; if not, write to the Free Software
18	+	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19	+	*/
20	+
21		//---PACKAGE DECLARATION---
22	<	package uk.org.iscream.cms.server.util;
22	>	package uk.org.iscream.cms.util;
23
24		//---IMPORTS---
25		import java.util.*;
#	Line 67 | Line 87 | public class StringUtils {
87		}
88
89		/**
90	<	* Checks that a given string is not matched within the
91	<	* given list of strings. For example:<br>
90	>	* Checks if a given string matches a
91	>	* wildcard expression. For example:<br>
92		* <br>
93	<	* Given "stue5de.ukc.ac.uk"<br>
94	<	* And   "raptor.ukc.ac.uk;stue*.ukc.ac.uk<br>
93	>	* Given "testingstring"<br>
94	>	* And   "test*ing"<br>
95		* <br>
96	<	* This method would return true as there is a match
96	>	* This method would return true as there is a match.
97		*
98	<	* @param source the string to look for
99	<	* @param group the group to search for a wilcard entry
98	>	* @param in the string to check
99	>	* @param expression the wildcard expression to match against
100		*
101		* @return if there is a match
102		*/
103	<	public static boolean wildcardCheck(String source, String group) {
104	<	boolean foundMatch = false;
105	<	StringTokenizer st = new StringTokenizer(group, ";");
106	<	// go through all the hosts in the group
107	<	while (st.hasMoreTokens()) {
108	<	String host = st.nextToken();
109	<	// this host has wildcards
110	<	if(host.indexOf("*") != -1) {
111	<	StringTokenizer hostst = new StringTokenizer(host, "*");
112	<	String part = "";
113	<	int index = 0;
114	<	// the first token will be everything at the start
115	<	// unless it starts with a wildcard
116	<	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;
103	>	public static boolean wildcardMatch(String in, String expression) {
104	>	// check actually has wildcards
105	>	if(expression.indexOf("*") != -1) {
106	>	StringTokenizer st = new StringTokenizer(expression, "*");
107	>	String part = "";
108	>	int index = 0;
109	>	// the first token will be everything at the start
110	>	// unless it starts with a wildcard
111	>	// -- if it starts with a wildcard the start
112	>	//    will always match
113	>	if(!expression.startsWith("*")) {
114	>	part = st.nextToken();
115	>	if (in.startsWith(part)) {
116	>	index = part.length();
117		}
118	<	// if the start matched, we want to check the rest...
119	<	if (foundMatch) {
120	<	while (hostst.hasMoreTokens()) {
121	<	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	<	}
118	>	else {
119	>	// doesn't start with the first part
120	>	// can't be a match
121	>	return false;
122		}
123		}
124	+	while (st.hasMoreTokens()) {
125	+	part = st.nextToken();
126	+	// if the next section can't be matched
127	+	// then this isn't in the input string
128	+	if(in.substring(index).indexOf(part) == -1) {
129	+	// we don't want to look through any more of it
130	+	// can't be a match if this part isn't there
131	+	return false;
132	+	}
133	+	else {
134	+	// move index pointer to start of the "rest"
135	+	// where the rest is everything after what we just matched
136	+	index += in.substring(index).indexOf(part) + part.length();
137	+	}
138	+	}
139	+	// if we reach here and we've found a match
140	+	// we want to check that the last part
141	+	// of the wildcard string is the last part
142	+	// of the input string, if it is, we break out
143	+	// and finish as we've found a match.
144	+	// if the end of the wildcard is a *, then
145	+	// we don't care
146	+	if (!expression.endsWith("*")) {
147	+	if ((in.endsWith(part))) {
148	+	return true;
149	+	}
150	+	else {
151	+	// doesn't end with the first part
152	+	// can't be a match
153	+	return false;
154	+	}
155	+	// ends with a *, so it matches the
156	+	// end regardless
157	+	}
158	+	else {
159	+	return true;
160	+	}
161		}
162	<	return foundMatch;
162	>	else if(in.equals(expression)) {
163	>	// might as well do a check if they're the same
164	>	// bit daft to call this whole method if they are though :)
165	>	return true;
166	>	}
167	>	else {
168	>	// obviously doesn't match if it's not a wildcard
169	>	// expression or isn't equal :)
170	>	return false;
171	>	}
172		}
173
174		//---CONSTRUCTORS---

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