java/java-impl/src/com/intellij/codeInsight/generation/GenerateFieldOrPropertyHandler.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
  17 package com.intellij.codeInsight.generation;
  18
  19 import com.intellij.openapi.project.Project;
  20 import com.intellij.psi.*;
  21 import com.intellij.psi.codeStyle.JavaCodeStyleManager;
  22 import com.intellij.psi.codeStyle.VariableKind;
  23 import com.intellij.psi.util.PropertyMemberType;
  24 import com.intellij.util.IncorrectOperationException;
  25 import org.jetbrains.annotations.NotNull;
  26
  27 import java.util.Arrays;
  28 import java.util.Collections;
  29 import java.util.List;
  30
  31 /**
  32  * @author Gregory.Shrago
  33  */
  34 public class GenerateFieldOrPropertyHandler extends GenerateMembersHandlerBase {
  35   private final String myAttributeName;
  36   private final PsiType myType;
  37   private final PropertyMemberType myMemberType;
  38   private final PsiAnnotation[] myAnnotations;
  39
  40   public GenerateFieldOrPropertyHandler(String attributeName, PsiType type, final PropertyMemberType memberType, final PsiAnnotation... annotations) {
  41     super("");
  42     myAttributeName = attributeName;
  43     myType = type;
  44     myMemberType = memberType;
  45     myAnnotations = annotations;
  46   }
  47
  48   protected ClassMember[] chooseOriginalMembers(PsiClass aClass, Project project) {
  49     return ClassMember.EMPTY_ARRAY;
  50   }
  51
  52
  53   @NotNull
  54   public List<? extends GenerationInfo> generateMemberPrototypes(PsiClass aClass, ClassMember[] members) throws IncorrectOperationException {
  55     final PsiElementFactory psiElementFactory = JavaPsiFacade.getInstance(aClass.getProject()).getElementFactory();
  56     try {
  57       final String name = myMemberType == PropertyMemberType.FIELD? myAttributeName : JavaCodeStyleManager.getInstance(aClass.getProject()).propertyNameToVariableName(myAttributeName, VariableKind.FIELD);
  58       final PsiField psiField = psiElementFactory.createField(name, myType);
  59       final GenerationInfo[] objects = new GenerateGetterAndSetterHandler().generateMemberPrototypes(aClass, new PsiFieldMember(psiField));
  60       final GenerationInfo getter = objects[0];
  61       final GenerationInfo setter = objects[1];
  62       if (myAnnotations.length > 0) {
  63         final PsiMember targetMember;
  64         switch (myMemberType) {
  65           case FIELD: targetMember = psiField;
  66             break;
  67           case GETTER: targetMember = getter.getPsiMember();
  68             break;
  69           case SETTER: targetMember = setter.getPsiMember();
  70             break;
  71           default: targetMember = null;
  72             break;
  73         }
  74         assert targetMember != null;
  75         for (PsiAnnotation annotation : myAnnotations) {
  76           targetMember.getModifierList().addAfter(annotation, null);
  77         }
  78
  79         JavaCodeStyleManager.getInstance(targetMember.getProject()).shortenClassReferences(targetMember.getModifierList());
  80       }
  81       return Arrays.asList(new PsiGenerationInfo<PsiField>(psiField), getter, setter);
  82     }
  83     catch (IncorrectOperationException e) {
  84       assert false : e;
  85       return Collections.emptyList();
  86     }
  87   }
  88
  89   protected ClassMember[] getAllOriginalMembers(PsiClass aClass) {
  90     throw new UnsupportedOperationException();
  91   }
  92
  93   protected GenerationInfo[] generateMemberPrototypes(PsiClass aClass, ClassMember originalMember) throws IncorrectOperationException {
  94     throw new UnsupportedOperationException();
  95   }
  96 }