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https://github.com/Alfresco/alfresco-community-repo.git
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cefda8c965
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18931 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
96 lines
3.2 KiB
Java
96 lines
3.2 KiB
Java
/*
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* Copyright (C) 2005-2010 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.jcr.item;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.StringTokenizer;
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import org.alfresco.service.namespace.NamespacePrefixResolver;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.service.namespace.QNamePattern;
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/**
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* Checks if the QName matches the passed JCR pattern.
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*
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* The pattern may be a full name or a partial name with one or more wildcard
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* characters ("*"), or a disjunction (using the "|" character to represent
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* logical OR) of these. For example,
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*
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* isMatch("jcr:* | myapp:report | my doc")
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*
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* Note that leading and trailing whitespace around a disjunct is ignored,
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* but whitespace within a disjunct forms part of the pattern to be matched.
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*
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* The EBNF for namePattern is:
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*
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* namePattern ::= disjunct {'|' disjunct}
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* disjunct ::= name [':' name]
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* name ::= '*' | ['*'] fragment {'*' fragment} ['*']
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* fragment ::= char {char}
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* char ::= nonspace | ' '
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* nonspace ::= (* Any Unicode character except: '/', ':', '[', ']', '*', ''', '"', '|' or any whitespace character *)
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*/
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public class JCRPatternMatch implements QNamePattern
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{
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private List<String> searches = new ArrayList<String>();
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private NamespacePrefixResolver resolver;
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/**
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* Construct
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* @param pattern JCR Pattern
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* @param resolver Namespace Prefix Resolver
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*/
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public JCRPatternMatch(String pattern, NamespacePrefixResolver resolver)
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{
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// TODO: Check for valid pattern
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// Convert to regular expression
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String regexPattern = pattern.replaceAll("\\*", ".*");
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// Split into independent search strings
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StringTokenizer tokenizer = new StringTokenizer(regexPattern, "|", false);
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while (tokenizer.hasMoreTokens())
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{
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String disjunct = tokenizer.nextToken().trim();
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this.searches.add(disjunct);
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}
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this.resolver = resolver;
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}
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/* (non-Javadoc)
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* @see org.alfresco.service.namespace.QNamePattern#isMatch(org.alfresco.service.namespace.QName)
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*/
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public boolean isMatch(QName qname)
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{
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String prefixedName = qname.toPrefixString(resolver);
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for (String search : searches)
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{
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if (prefixedName.matches(search))
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{
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return true;
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}
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}
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return false;
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}
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}
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