soap-network

Simulating network of connected distributed nodes that communicate with each other using SOAP protocole (javax.xml.soap) and TCP sockets (java.net). Nodes can send simple text messages to specified nodes (unicast), group of nodes (multicast) and all nodes in network (broadcast).

Node identification

Nodes can be divided into sub-networks - groups. Each node in the group can be identified by a string consisting of group name and machine name.

group-machine

Group part and machine part are sepparated with single dash letter.

Messages target

Unicast - single node. Target below reffers to node 1 in group a.

a-1

Multicast - group of nodes. Target bellow reffers to all nodes in group a.

a-*

Broadcast - all nodes in the network (self included).

*-*

Node types

There are two node types:

• Simple node
• Router node

Simple node

Simple node is basically a machine in a group (sub-network). It is connected only to the next node in same network.

Router node

Router node is node connected to its group and also to another router node. Router nodes are used to connect sub-networks together. All cross-group communication is managed by this type of nodes.

Sample configurations

3networks-3nodes

start javaw -jar router-node.jar --nodePort=5060 --nodeId="a-R" --nextNetworkNodePort=5061 --nextRouterNodePort=5070
start javaw -jar router-node.jar --nodePort=5070 --nodeId="b-R" --nextNetworkNodePort=5071 --nextRouterNodePort=5080
start javaw -jar router-node.jar --nodePort=5080 --nodeId="c-R" --nextNetworkNodePort=5081 --nextRouterNodePort=5060

start javaw -jar simple-node.jar --nodePort=5061 --nodeId="a-1" --nextNodePort=5062
start javaw -jar simple-node.jar --nodePort=5062 --nodeId="a-2" --nextNodePort=5060
start javaw -jar simple-node.jar --nodePort=5071 --nodeId="b-1" --nextNodePort=5072
start javaw -jar simple-node.jar --nodePort=5072 --nodeId="b-2" --nextNodePort=5070
start javaw -jar simple-node.jar --nodePort=5081 --nodeId="c-1" --nextNodePort=5082
start javaw -jar simple-node.jar --nodePort=5082 --nodeId="c-2" --nextNodePort=5080

Node distribution

Nodes can be distributed on different machines. It is possible to specify target host addresses. If not specified - it defaults to localhost.

start javaw -jar simple-node.jar --nodePort=5082 --nodeId="c-2" --nextNodeHost="192.168.1.2" --nextNodePort=5080

start javaw -jar router-node.jar --nodePort=5080 --nodeId="c-R" --nextNetworkNodeHost="192.168.1.2" --nextNetworkNodePort=5081 --nextRouterNodeHost="192.168.1.3" --nextRouterNodePort=5060

GUI screenshots