| // |
| // ======================================================================== |
| // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.util; |
| |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.regex.Pattern; |
| |
| public abstract class PatternMatcher |
| { |
| public abstract void matched (URI uri) throws Exception; |
| |
| |
| /** |
| * Find jar names from the provided list matching a pattern. |
| * |
| * If the pattern is null and isNullInclusive is true, then |
| * all jar names will match. |
| * |
| * A pattern is a set of acceptable jar names. Each acceptable |
| * jar name is a regex. Each regex can be separated by either a |
| * "," or a "|". If you use a "|" this or's together the jar |
| * name patterns. This means that ordering of the matches is |
| * unimportant to you. If instead, you want to match particular |
| * jar names, and you want to match them in order, you should |
| * separate the regexs with "," instead. |
| * |
| * Eg "aaa-.*\\.jar|bbb-.*\\.jar" |
| * Will iterate over the jar names and match |
| * in any order. |
| * |
| * Eg "aaa-*\\.jar,bbb-.*\\.jar" |
| * Will iterate over the jar names, matching |
| * all those starting with "aaa-" first, then "bbb-". |
| * |
| * @param pattern the pattern |
| * @param uris the uris to test the pattern against |
| * @param isNullInclusive if true, an empty pattern means all names match, if false, none match |
| * @throws Exception |
| */ |
| public void match (Pattern pattern, URI[] uris, boolean isNullInclusive) |
| throws Exception |
| { |
| if (uris!=null) |
| { |
| String[] patterns = (pattern==null?null:pattern.pattern().split(",")); |
| |
| List<Pattern> subPatterns = new ArrayList<Pattern>(); |
| for (int i=0; patterns!=null && i<patterns.length;i++) |
| { |
| subPatterns.add(Pattern.compile(patterns[i])); |
| } |
| if (subPatterns.isEmpty()) |
| subPatterns.add(pattern); |
| |
| if (subPatterns.isEmpty()) |
| { |
| matchPatterns(null, uris, isNullInclusive); |
| } |
| else |
| { |
| //for each subpattern, iterate over all the urls, processing those that match |
| for (Pattern p : subPatterns) |
| { |
| matchPatterns(p, uris, isNullInclusive); |
| } |
| } |
| } |
| } |
| |
| |
| public void matchPatterns (Pattern pattern, URI[] uris, boolean isNullInclusive) |
| throws Exception |
| { |
| for (int i=0; i<uris.length;i++) |
| { |
| URI uri = uris[i]; |
| String s = uri.toString(); |
| if ((pattern == null && isNullInclusive) |
| || |
| (pattern!=null && pattern.matcher(s).matches())) |
| { |
| matched(uris[i]); |
| } |
| } |
| } |
| } |