| /* |
| * Copyright 2000-2013 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.util; |
| |
| import java.util.ArrayList; |
| |
| public class UniqueFileNamesProvider { |
| private final ArrayList<String> myExistingNames; |
| |
| public UniqueFileNamesProvider() { |
| myExistingNames = new ArrayList<String>(); |
| } |
| |
| public String suggestName(String originalName) { |
| String s = convertName(originalName); |
| if (!contains(s)) { |
| myExistingNames.add(s); |
| return s; |
| } |
| |
| for (int postfix = myExistingNames.size(); ; postfix++){ |
| String s1 = s + postfix; |
| if (!contains(s1)) { |
| myExistingNames.add(s1); |
| return s1; |
| } |
| } |
| } |
| |
| private boolean contains(String s) { |
| for (int i = 0; i < myExistingNames.size(); i++) { |
| if (myExistingNames.get(i).equalsIgnoreCase(s)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public static String convertName(String s) { |
| if (s == null || s.isEmpty()) { |
| return "_"; |
| } |
| StringBuffer buf = new StringBuffer(); |
| for (int i = 0; i < s.length(); i++) { |
| char c = s.charAt(i); |
| if (Character.isJavaIdentifierPart(c) || c == ' ') { |
| buf.append(c); |
| } |
| else { |
| buf.append('_'); |
| } |
| } |
| return buf.toString(); |
| } |
| |
| public void reserveFileName(final String fileName) { |
| myExistingNames.add(fileName); |
| } |
| } |