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A collection of various utility classes to ease working with strings, files, command lines, XML and more.

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package org.codehaus.plexus.util;

/*
 * Copyright The Codehaus Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;

/**
 * 

Describes a match target for SelectorUtils.

* *

Significantly more efficient than using strings, since re-evaluation and re-tokenizing is avoided.

* * @author Kristian Rosenvold */ public class MatchPattern { private final String source; private final String regexPattern; private final String separator; private final String[] tokenized; private final char[][] tokenizedChar; private MatchPattern( String source, String separator ) { regexPattern = SelectorUtils.isRegexPrefixedPattern( source ) ? source.substring( SelectorUtils.REGEX_HANDLER_PREFIX.length(), source.length() - SelectorUtils.PATTERN_HANDLER_SUFFIX.length() ) : null; this.source = SelectorUtils.isAntPrefixedPattern( source ) ? source.substring( SelectorUtils.ANT_HANDLER_PREFIX.length(), source.length() - SelectorUtils.PATTERN_HANDLER_SUFFIX.length() ) : source; this.separator = separator; tokenized = tokenizePathToString( this.source, separator ); tokenizedChar = new char[tokenized.length][]; for ( int i = 0; i < tokenized.length; i++ ) { tokenizedChar[i] = tokenized[i].toCharArray(); } } public boolean matchPath( String str, boolean isCaseSensitive ) { if ( regexPattern != null ) { return str.matches( regexPattern ); } else { return SelectorUtils.matchAntPathPattern( this, str, separator, isCaseSensitive ); } } boolean matchPath( String str, char[][] strDirs, boolean isCaseSensitive ) { if ( regexPattern != null ) { return str.matches( regexPattern ); } else { return SelectorUtils.matchAntPathPattern( getTokenizedPathChars(), strDirs, isCaseSensitive ); } } public boolean matchPatternStart( String str, boolean isCaseSensitive ) { if ( regexPattern != null ) { // FIXME: ICK! But we can't do partial matches for regex, so we have to reserve judgement until we have // a file to deal with, or we can definitely say this is an exclusion... return true; } else { String altStr = str.replace( '\\', '/' ); return SelectorUtils.matchAntPathPatternStart( this, str, File.separator, isCaseSensitive ) || SelectorUtils.matchAntPathPatternStart( this, altStr, "/", isCaseSensitive ); } } public String[] getTokenizedPathString() { return tokenized; } public char[][] getTokenizedPathChars() { return tokenizedChar; } public boolean startsWith( String string ) { return source.startsWith( string ); } static String[] tokenizePathToString( String path, String separator ) { List ret = new ArrayList(); StringTokenizer st = new StringTokenizer( path, separator ); while ( st.hasMoreTokens() ) { ret.add( st.nextToken() ); } return ret.toArray( new String[ret.size()] ); } public static MatchPattern fromString( String source ) { return new MatchPattern( source, File.separator ); } }




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