| /* |
| * Copyright 2006 Google Inc. |
| * |
| * 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.google.gwt.util.tools; |
| |
| /** |
| * Argument handler for flags that take an integer as their parameter. |
| */ |
| public abstract class ArgHandlerInt extends ArgHandler { |
| |
| @Override |
| public int handle(String[] args, int startIndex) { |
| int value; |
| if (startIndex + 1 < args.length) { |
| try { |
| value = Integer.parseInt(args[startIndex + 1]); |
| } catch (NumberFormatException e) { |
| // fall-through |
| value = -1; |
| } |
| |
| setInt(value); |
| return 1; |
| } |
| |
| System.err.println(getTag() + " should be followed by an integer"); |
| return -1; |
| } |
| |
| @Override |
| public boolean isRequired() { |
| return false; |
| } |
| |
| public abstract void setInt(int value); |
| } |