com.google.gwt.util.tools.ArgHandlerInt Maven / Gradle / Ivy
/*
* 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);
}