java/java-impl/src/com/intellij/util/xml/PsiPackageConverter.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.util.xml;
  17
  18 import com.intellij.psi.*;
  19 import com.intellij.psi.impl.source.resolve.reference.impl.providers.PackageReferenceSet;
  20 import org.jetbrains.annotations.NonNls;
  21 import org.jetbrains.annotations.NotNull;
  22 import org.jetbrains.annotations.Nullable;
  23
  24 /**
  25  * @author Konstantin Bulenkov
  26  */
  27 public class PsiPackageConverter extends Converter<PsiPackage> implements CustomReferenceConverter<PsiPackage> {
  28   public PsiPackage fromString(@Nullable @NonNls String s, final ConvertContext context) {
  29     if (s == null) return null;
  30     return JavaPsiFacade.getInstance(context.getPsiManager().getProject()).findPackage(s);
  31   }
  32
  33   public String toString(@Nullable PsiPackage psiPackage, final ConvertContext context) {
  34     return psiPackage == null ? null : psiPackage.getQualifiedName();
  35   }
  36
  37   @NotNull
  38   public PsiReference[] createReferences(GenericDomValue<PsiPackage> genericDomValue, PsiElement element, ConvertContext context) {
  39     final String s = genericDomValue.getStringValue();
  40     if (s == null) {
  41       return PsiReference.EMPTY_ARRAY;
  42     }
  43     return new PackageReferenceSet(s, element, ElementManipulators.getOffsetInElement(element)).getPsiReferences();
  44   }
  45 }