Java or C++ code- Simple network simulation

Need a programmer for Java or C++ with a little knowledge of Content Delivery Networks (how it works). Should know how it works and should be able to simulate using C++ or Java. This is simple project and doesn’t have to be complicated. Need input from main file and output that’s all I need to simulate a content delivery network with input 1. Graph 2. Tree 3. Node Placement- remember node will server a servers and proxy Output Formula to calculate latency and overhead (for example one mode retrieve information from server node. What would be the latency and cost, and overhead). The formula to calculate that will be provided. Simple - Generate grid that shows the output calculated in formulas.