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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one   *
3    * or more contributor license agreements.  See the NOTICE file *
4    * distributed with this work for additional information        *
5    * regarding copyright ownership.  The ASF licenses this file   *
6    * to you under the Apache License, Version 2.0 (the            *
7    * "License"); you may not use this file except in compliance   *
8    * with the License.  You may obtain a copy of the License at   *
9    *                                                              *
10   *   http://www.apache.org/licenses/LICENSE-2.0                 *
11   *                                                              *
12   * Unless required by applicable law or agreed to in writing,   *
13   * software distributed under the License is distributed on an  *
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
15   * KIND, either express or implied.  See the License for the    *
16   * specific language governing permissions and limitations      *
17   * under the License.                                           *
18   */
19  package org.apache.rat.configuration.builders;
20  
21  import org.apache.commons.lang3.StringUtils;
22  import org.apache.rat.ConfigurationException;
23  import org.apache.rat.analysis.matchers.FullTextMatcher;
24  import org.apache.rat.analysis.matchers.SimpleTextMatcher;
25  
26  /**
27   * Builds text matcher.  The specific implementation is based on the complexity of the text to match.
28   */
29  public class TextBuilder extends AbstractBuilder {
30  
31      private String text;
32  
33      /**
34       * Sets the text to match.
35       * @param text the text to match
36       * @return this builder.
37       */
38      public TextBuilder setSimpleText(String text) {
39          this.text = text.trim();
40          if (StringUtils.isBlank(text)) {
41              throw new ConfigurationException("'text' may not be null");
42          }
43          return this;
44      }
45  
46      @Override
47      public SimpleTextMatcher build() {
48          if (StringUtils.isBlank(text)) {
49              throw new ConfigurationException("text value is required");
50          }
51          boolean complex = text.contains(" ") | text.contains("\\t") | text.contains("\\n") | text.contains("\\r")
52                  | text.contains("\\f") | text.contains("\\v");
53  
54          return complex ? new FullTextMatcher(getId(), text) : new SimpleTextMatcher(getId(), text);
55      }
56  
57      @Override
58      public String toString() {
59          if (text.length() > 20) {
60              return "TextBuilder: " + text.substring(0, 20) + "...";
61          }
62          return "TextBuilder: " + text;
63      }
64  }