View Javadoc
1   /**
2    * Copyright (c) 2004-2011 QOS.ch
3    * All rights reserved.
4    *
5    * Permission is hereby granted, free  of charge, to any person obtaining
6    * a  copy  of this  software  and  associated  documentation files  (the
7    * "Software"), to  deal in  the Software without  restriction, including
8    * without limitation  the rights to  use, copy, modify,  merge, publish,
9    * distribute,  sublicense, and/or sell  copies of  the Software,  and to
10   * permit persons to whom the Software  is furnished to do so, subject to
11   * the following conditions:
12   *
13   * The  above  copyright  notice  and  this permission  notice  shall  be
14   * included in all copies or substantial portions of the Software.
15   *
16   * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
17   * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
18   * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
19   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21   * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
22   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23   *
24   */
25  package org.slf4j.migrator.line;
26  
27  import java.util.ArrayList;
28  import java.util.Iterator;
29  import java.util.regex.Pattern;
30  
31  import org.slf4j.migrator.line.ConversionRule;
32  import org.slf4j.migrator.line.MultiGroupConversionRule;
33  import org.slf4j.migrator.line.RuleSet;
34  import org.slf4j.migrator.line.SingleConversionRule;
35  
36  class TrivialMatcher implements RuleSet {
37  
38      private final ArrayList<ConversionRule> conversionRuleList;
39  
40      public TrivialMatcher() {
41          // simple rule no capturing group is defined, we use default capturing group which is group zero
42          SingleConversionRule cr = new SingleConversionRule(Pattern.compile("import org.slf4j.converter"), "simple replacement with an unique capturing group");
43  
44          // we define 4 differents capturing groups
45          MultiGroupConversionRule cr1 = new MultiGroupConversionRule(Pattern.compile("(first group)( second group)( third group)( 4th group)"));
46          // group zero is ignored during treatment
47          // replacement for the first
48          cr1.addReplacement(1, "1st group");
49          // no replacement for the second group it will remains the same
50          // empty string for the third group it will be deleted
51          cr1.addReplacement(3, "");
52          // no replacement for the third group it will remains the same
53  
54          conversionRuleList = new ArrayList<>();
55          conversionRuleList.add(cr);
56          conversionRuleList.add(cr1);
57      }
58  
59      public Iterator<ConversionRule> iterator() {
60          return conversionRuleList.iterator();
61      }
62  
63  }