case-study/jdt-after/core refactoring/org/eclipse/jdt/internal/corext/refactoring/util/QualifiedNameSearchResult.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2011 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.corext.refactoring.util;
  12
  13 import java.util.Arrays;
  14 import java.util.Collection;
  15 import java.util.HashMap;
  16 import java.util.Iterator;
  17 import java.util.List;
  18 import java.util.Map;
  19 import java.util.Set;
  20
  21 import org.eclipse.core.resources.IFile;
  22
  23 import org.eclipse.ltk.core.refactoring.Change;
  24 import org.eclipse.ltk.core.refactoring.CompositeChange;
  25 import org.eclipse.ltk.core.refactoring.TextChange;
  26 import org.eclipse.ltk.core.refactoring.TextFileChange;
  27
  28 import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages;
  29
  30 public class QualifiedNameSearchResult {
  31
  32         private Map<IFile, TextChange> fChanges;
  33
  34         public QualifiedNameSearchResult() {
  35                 fChanges= new HashMap<IFile, TextChange>();
  36         }
  37
  38         public TextChange getChange(IFile file) {
  39                 TextChange result= fChanges.get(file);
  40                 if (result == null) {
  41                         result= new TextFileChange(file.getName(), file);
  42                         fChanges.put(file, result);
  43                 }
  44                 return result;
  45         }
  46
  47         public TextChange[] getAllChanges() {
  48                 Collection<TextChange> values= fChanges.values();
  49                 return values.toArray(new TextChange[values.size()]);
  50         }
  51
  52         public IFile[] getAllFiles() {
  53                 Set<IFile> keys= fChanges.keySet();
  54                 return keys.toArray(new IFile[keys.size()]);
  55         }
  56
  57         public Change getSingleChange(IFile[] alreadyTouchedFiles) {
  58                 Collection<TextChange> values= fChanges.values();
  59                 if (values.size() == 0)
  60                         return null;
  61
  62                 CompositeChange result= new CompositeChange(RefactoringCoreMessages.QualifiedNameSearchResult_change_name);
  63                 result.markAsSynthetic();
  64                 List<IFile> files= Arrays.asList(alreadyTouchedFiles);
  65                 for (Iterator<TextChange> iter= values.iterator(); iter.hasNext();) {
  66                         TextFileChange change= (TextFileChange)iter.next();
  67                         if (!files.contains(change.getFile())) {
  68                                 result.add(change);
  69                         }
  70                 }
  71                 return result;
  72         }
  73 }