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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.google.currysrc.processors;
     17 
     18 import com.google.currysrc.api.process.Reporter;
     19 
     20 import org.eclipse.jdt.core.dom.Comment;
     21 
     22 /**
     23  * Replaces all occurrences of {@code oldText} with {@code newText}.
     24  */
     25 public final class ReplaceTextCommentScanner extends BaseModifyCommentScanner {
     26   private final String oldText;
     27   private final String newText;
     28 
     29   public ReplaceTextCommentScanner(String oldText, String newText) {
     30     this.oldText = oldText;
     31     this.newText = newText;
     32   }
     33 
     34   @Override
     35   protected String processComment(Reporter reporter, Comment commentNode, String commentText) {
     36     String newCommentText = commentText.replace(oldText, newText);
     37     if (newCommentText.equals(commentText)) {
     38       return null;
     39     }
     40     return newCommentText;
     41   }
     42 
     43   @Override
     44   public String toString() {
     45     return "ReplaceTextCommentScanner{" +
     46         "oldText='" + oldText + '\'' +
     47         ", newText='" + newText + '\'' +
     48         '}';
     49   }
     50 }
     51