java/java-impl/src/com/intellij/refactoring/removemiddleman/usageInfo/InlineDelegatingCall.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.removemiddleman.usageInfo;
  17
  18 import com.intellij.psi.*;
  19 import com.intellij.refactoring.psi.MutationUtils;
  20 import com.intellij.refactoring.util.FixableUsageInfo;
  21 import com.intellij.util.IncorrectOperationException;
  22
  23 public class InlineDelegatingCall extends FixableUsageInfo {
  24   private final PsiMethodCallExpression expression;
  25   private final String myAccess;
  26   private final String delegatingName;
  27   private final int[] paramaterPermutation;
  28
  29   public InlineDelegatingCall(PsiMethodCallExpression expression,
  30                               int[] paramaterPermutation,
  31                               String access,
  32                               String delegatingName) {
  33     super(expression);
  34     this.expression = expression;
  35     this.paramaterPermutation = paramaterPermutation;
  36     myAccess = access;
  37     this.delegatingName = delegatingName;
  38   }
  39
  40   public void fixUsage() throws IncorrectOperationException {
  41     final StringBuffer replacementText = new StringBuffer();
  42     final PsiReferenceExpression methodExpression = expression.getMethodExpression();
  43     final PsiElement qualifier = methodExpression.getQualifier();
  44     if (qualifier != null) {
  45       final String qualifierText = qualifier.getText();
  46       replacementText.append(qualifierText + '.');
  47     }
  48     replacementText.append(myAccess).append(".");
  49     replacementText.append(delegatingName).append('(');
  50     final PsiExpressionList argumentList = expression.getArgumentList();
  51     assert argumentList != null;
  52     final PsiExpression[] args = argumentList.getExpressions();
  53     boolean first = true;
  54     for (int i : paramaterPermutation) {
  55       if (!first) {
  56         replacementText.append(", ");
  57       }
  58       first = false;
  59       final String argText = args[i].getText();
  60       replacementText.append(argText);
  61     }
  62     replacementText.append(')');
  63     final String replacementTextString = replacementText.toString();
  64     MutationUtils.replaceExpression(replacementTextString, expression);
  65   }
  66 }