public TcpSource tcp(String host, int port) {
		return new TcpSource(host, port);
	}
Construct a new TcpSource with the default target host taken from the environment and the provided port.

@param host the host ip where tcp data will be posted.
@param port the port to connect to
@return an instance of TcpSource
spring-xd-integration-test/src/main/java/org/springframework/xd/integration/fixtures/Sources.java