platform/lang-impl/src/com/intellij/ide/util/DeleteUtil.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.ide.util;
  18
  19 import com.intellij.ide.IdeBundle;
  20 import com.intellij.psi.ElementDescriptionUtil;
  21 import com.intellij.psi.PsiDirectoryContainer;
  22 import com.intellij.psi.PsiElement;
  23 import com.intellij.util.containers.FactoryMap;
  24 import com.intellij.util.containers.HashMap;
  25 import org.jetbrains.annotations.NonNls;
  26
  27 import java.text.MessageFormat;
  28 import java.util.Map;
  29
  30 /**
  31  * @author dsl
  32  */
  33 public class DeleteUtil {
  34   private DeleteUtil() {}
  35
  36   public static void appendMessage(int count, @NonNls String propertyKey, StringBuffer buffer) {
  37     if (count > 0) {
  38       if (buffer.length() > 0) {
  39         buffer.append(" ").append(IdeBundle.message("prompt.delete.and")).append(" ");
  40       }
  41       buffer.append(count);
  42       buffer.append(' ');
  43       buffer.append(IdeBundle.message(propertyKey, count));
  44     }
  45   }
  46
  47   public static String generateWarningMessage(String messageTemplate, final PsiElement[] elements) {
  48     if (elements.length == 1) {
  49       String name = ElementDescriptionUtil.getElementDescription(elements [0], DeleteNameDescriptionLocation.INSTANCE);
  50       String type = ElementDescriptionUtil.getElementDescription(elements [0], DeleteTypeDescriptionLocation.SINGULAR);
  51       return MessageFormat.format(messageTemplate, type + " \"" + name + "\"");
  52     }
  53
  54     FactoryMap<String, Integer> countMap = new FactoryMap<String, Integer>() {
  55       protected Integer create(final String key) {
  56         return 0;
  57       }
  58     };
  59     Map<String, String> pluralToSingular = new HashMap<String, String>();
  60     int directoryCount = 0;
  61     String containerType = null;
  62
  63     for (final PsiElement elementToDelete : elements) {
  64       String type = ElementDescriptionUtil.getElementDescription(elementToDelete, DeleteTypeDescriptionLocation.PLURAL);
  65       pluralToSingular.put(type, ElementDescriptionUtil.getElementDescription(elementToDelete, DeleteTypeDescriptionLocation.SINGULAR));
  66       int oldCount = countMap.get(type).intValue();
  67       countMap.put(type, oldCount+1);
  68       if (elementToDelete instanceof PsiDirectoryContainer) {
  69         containerType = type;
  70         directoryCount += ((PsiDirectoryContainer) elementToDelete).getDirectories().length;
  71       }
  72     }
  73
  74     StringBuffer buffer = new StringBuffer();
  75     for (Map.Entry<String, Integer> entry : countMap.entrySet()) {
  76       if (buffer.length() > 0) {
  77         if (buffer.length() > 0) {
  78           buffer.append(" ").append(IdeBundle.message("prompt.delete.and")).append(" ");
  79         }
  80       }
  81       final int count = entry.getValue().intValue();
  82
  83       buffer.append(count).append(" ");
  84       if (count == 1) {
  85         buffer.append(pluralToSingular.get(entry.getKey()));
  86       }
  87       else {
  88         buffer.append(entry.getKey());
  89       }
  90
  91       if (entry.getKey().equals(containerType)) {
  92         buffer.append(" ").append(IdeBundle.message("prompt.delete.directory.paren", directoryCount));
  93       }
  94     }
  95     return MessageFormat.format(messageTemplate, buffer.toString());
  96   }
  97 }