java/java-impl/src/com/intellij/psi/impl/source/PsiJavaFileImpl.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.psi.impl.source;
  17
  18 import com.intellij.lexer.JavaLexer;
  19 import com.intellij.lexer.Lexer;
  20 import com.intellij.openapi.fileTypes.FileType;
  21 import com.intellij.openapi.fileTypes.StdFileTypes;
  22 import com.intellij.openapi.roots.ProjectRootManager;
  23 import com.intellij.openapi.roots.ProjectFileIndex;
  24 import com.intellij.openapi.vfs.VirtualFile;
  25 import com.intellij.psi.FileViewProvider;
  26 import com.intellij.psi.JavaPsiFacade;
  27 import com.intellij.psi.PsiElementFactory;
  28 import com.intellij.psi.PsiPackageStatement;
  29 import com.intellij.psi.search.GlobalSearchScope;
  30 import com.intellij.util.IncorrectOperationException;
  31 import com.intellij.testFramework.LightVirtualFile;
  32 import org.jetbrains.annotations.NotNull;
  33
  34 public class PsiJavaFileImpl extends PsiJavaFileBaseImpl {
  35   public PsiJavaFileImpl(FileViewProvider file) {
  36     super(Constants.JAVA_FILE, Constants.JAVA_FILE, file);
  37   }
  38
  39   public String toString(){
  40     return "PsiJavaFile:" + getName();
  41   }
  42
  43   public Lexer createLexer() {
  44     return new JavaLexer(getLanguageLevel());
  45   }
  46
  47   @NotNull
  48   @Override
  49   public GlobalSearchScope getResolveScope() {
  50     final VirtualFile file = getVirtualFile();
  51     if (file != null && !(file instanceof LightVirtualFile)) {
  52       final ProjectFileIndex index = ProjectRootManager.getInstance(getProject()).getFileIndex();
  53       if (!index.isInSource(file) && !index.isInLibraryClasses(file)) {
  54         return GlobalSearchScope.fileScope(this);
  55       }
  56     }
  57     return super.getResolveScope();
  58   }
  59
  60   @NotNull
  61   public FileType getFileType() {
  62     return StdFileTypes.JAVA;
  63   }
  64
  65   public void setPackageName(final String packageName) throws IncorrectOperationException {
  66     PsiPackageStatement packageStatement = getPackageStatement();
  67     final PsiElementFactory factory = JavaPsiFacade.getInstance(getProject()).getElementFactory();
  68     if (packageStatement != null) {
  69       if (packageName.length() > 0) {
  70         packageStatement.replace(factory.createPackageStatement(packageName));
  71       }
  72       else {
  73         packageStatement.delete();
  74       }
  75     }
  76     else {
  77       if (packageName.length() > 0) {
  78         add(factory.createPackageStatement(packageName));
  79       }
  80     }
  81   }
  82 }