java/java-impl/src/com/intellij/refactoring/move/moveClassesOrPackages/AutocreatingMoveDestination.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   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.intellij.refactoring.move.moveClassesOrPackages;
  17
  18 import com.intellij.openapi.roots.ProjectFileIndex;
  19 import com.intellij.openapi.roots.ProjectRootManager;
  20 import com.intellij.openapi.vfs.VirtualFile;
  21 import com.intellij.psi.PsiDirectory;
  22 import com.intellij.psi.PsiFile;
  23 import com.intellij.psi.PsiManager;
  24 import com.intellij.refactoring.MoveDestination;
  25 import com.intellij.refactoring.PackageWrapper;
  26 import com.intellij.refactoring.RefactoringBundle;
  27 import com.intellij.refactoring.util.RefactoringUtil;
  28 import com.intellij.util.IncorrectOperationException;
  29 import org.jetbrains.annotations.Nullable;
  30
  31 /**
  32  *  @author dsl
  33  */
  34 public abstract class AutocreatingMoveDestination implements MoveDestination {
  35   protected final PackageWrapper myPackage;
  36   protected final PsiManager myManager;
  37   protected final ProjectFileIndex myFileIndex;
  38
  39   public AutocreatingMoveDestination(PackageWrapper targetPackage) {
  40     myPackage = targetPackage;
  41     myManager = myPackage.getManager();
  42     myFileIndex = ProjectRootManager.getInstance(myManager.getProject()).getFileIndex();
  43   }
  44
  45   public abstract PackageWrapper getTargetPackage();
  46
  47   public abstract PsiDirectory getTargetDirectory(PsiDirectory source) throws IncorrectOperationException;
  48
  49   public abstract PsiDirectory getTargetDirectory(PsiFile source) throws IncorrectOperationException;
  50
  51   @Nullable
  52   protected String checkCanCreateInSourceRoot(final VirtualFile targetSourceRoot) {
  53     final String targetQName = myPackage.getQualifiedName();
  54     final String sourceRootPackage = myFileIndex.getPackageNameByDirectory(targetSourceRoot);
  55     if (!RefactoringUtil.canCreateInSourceRoot(sourceRootPackage, targetQName)) {
  56       return RefactoringBundle.message("source.folder.0.has.package.prefix.1", targetSourceRoot.getPresentableUrl(),
  57                                        sourceRootPackage, targetQName);
  58     }
  59     return null;
  60   }
  61 }