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.Context; 19 import com.google.currysrc.api.process.Processor; 20 21 import org.eclipse.jdt.core.dom.ASTVisitor; 22 import org.eclipse.jdt.core.dom.CompilationUnit; 23 import org.eclipse.jdt.core.dom.Name; 24 import org.eclipse.jdt.core.dom.QualifiedName; 25 import org.eclipse.jdt.core.dom.rewrite.ASTRewrite; 26 27 /** 28 * Changes any qualified names in the AST that start with {@code oldPrefix} to start with 29 * {@code newPrefix} instead. 30 */ 31 public final class ModifyQualifiedNames implements Processor { 32 33 private final String oldPrefix; 34 35 private final String newPrefix; 36 37 public ModifyQualifiedNames(String oldPrefix, String newPrefix) { 38 this.oldPrefix = oldPrefix; 39 this.newPrefix = newPrefix; 40 } 41 42 @Override 43 public void process(Context context, CompilationUnit cu) { 44 final ASTRewrite rewrite = context.rewrite(); 45 ASTVisitor visitor = new ASTVisitor(true /* visitDocTags */) { 46 @Override 47 public boolean visit(QualifiedName node) { 48 Name qualifier = node.getQualifier(); 49 if (qualifier != null) { 50 String fullyQualifiedName = qualifier.getFullyQualifiedName(); 51 if (fullyQualifiedName.startsWith(oldPrefix)) { 52 String newQualifierString = newPrefix + fullyQualifiedName 53 .substring(oldPrefix.length()); 54 Name newQualifier = node.getAST().newName(newQualifierString); 55 rewrite.replace(qualifier, newQualifier, null /* editGroup */); 56 } 57 } 58 return false; 59 } 60 }; 61 cu.accept(visitor); 62 } 63 64 @Override 65 public String toString() { 66 return "ModifyQualifiedNames{" + 67 "oldPrefix='" + oldPrefix + '\'' + 68 ", newPrefix='" + newPrefix + '\'' + 69 '}'; 70 } 71 } 72
