001 /**************************************************************** 002 * Licensed to the Apache Software Foundation (ASF) under one * 003 * or more contributor license agreements. See the NOTICE file * 004 * distributed with this work for additional information * 005 * regarding copyright ownership. The ASF licenses this file * 006 * to you under the Apache License, Version 2.0 (the * 007 * "License"); you may not use this file except in compliance * 008 * with the License. You may obtain a copy of the License at * 009 * * 010 * http://www.apache.org/licenses/LICENSE-2.0 * 011 * * 012 * Unless required by applicable law or agreed to in writing, * 013 * software distributed under the License is distributed on an * 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * 015 * KIND, either express or implied. See the License for the * 016 * specific language governing permissions and limitations * 017 * under the License. * 018 ****************************************************************/ 019 020 package org.apache.james.jspf.parser; 021 022 import org.apache.james.jspf.terms.Configuration; 023 024 import java.util.regex.Matcher; 025 026 /** 027 * 028 * Provides a MatchResult view of a subset of another MatchResult 029 */ 030 public class MatcherBasedConfiguration implements Configuration { 031 032 private Matcher wrapped; 033 034 private int start; 035 036 private int count; 037 038 /** 039 * @param w 040 * Original MatchResult 041 * @param start 042 * the position where the subresult start 043 * @param count 044 * number of groups part of the subresult 045 */ 046 public MatcherBasedConfiguration(Matcher w, int start, int count) { 047 this.wrapped = w; 048 this.count = count; 049 this.start = start; 050 } 051 052 /** 053 * @see org.apache.james.jspf.terms.Configuration#group(int) 054 */ 055 public String group(int arg0) { 056 return wrapped.group(arg0 + start); 057 } 058 059 /** 060 * @see org.apache.james.jspf.terms.Configuration#groupCount() 061 */ 062 public int groupCount() { 063 return count; 064 } 065 066 }