java/java-impl/src/com/intellij/psi/filters/getters/FilterGetter.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.filters.getters;
  17
  18 import com.intellij.codeInsight.completion.CompletionContext;
  19 import com.intellij.psi.PsiElement;
  20 import com.intellij.psi.filters.ContextGetter;
  21 import com.intellij.psi.filters.ElementFilter;
  22
  23 import java.util.ArrayList;
  24 import java.util.List;
  25
  26 /**
  27  * Created by IntelliJ IDEA.
  28  * User: ik
  29  * Date: 15.04.2003
  30  * Time: 17:18:58
  31  * To change this template use Options | File Templates.
  32  */
  33 public class FilterGetter implements ContextGetter{
  34   private final ContextGetter myBaseGetter;
  35   private final ElementFilter myFilter;
  36
  37   public FilterGetter(ContextGetter baseGetter, ElementFilter filter){
  38     myBaseGetter = baseGetter;
  39     myFilter = filter;
  40   }
  41
  42   public Object[] get(PsiElement context, CompletionContext completionContext){
  43     final List results = new ArrayList();
  44     final Object[] elements = myBaseGetter.get(context, completionContext);
  45     for (final Object element : elements) {
  46       if (myFilter.isClassAcceptable(element.getClass()) && myFilter.isAcceptable(element, context)) {
  47         results.add(element);
  48       }
  49     }
  50     return results.toArray();
  51   }
  52 }