Copyright 2009 Konstantinos Kougios. 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. 