/*
TempConversionClient.java
by Jeffrey K. Brown

TempConversionClient.java is a Crude Example of how to call a Web Service method.
You'll notice the difference between the way we link to and call the TemperatureConversion
methods versus the WSDL2Java-generated methods.

Basically, in this TempConversionClient, we have to manually set up a lot of the things
that the WSDL2Java does for us, basically eliminating a few different steps and replacing
them with two.

*/
import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.encoding.XMLType;
import org.apache.axis.utils.Options;

import javax.xml.rpc.ParameterMode;

import java.net.*;

public class TempConversionClient {
    
    public static void main (String[] args) throws Exception {
        
        double temperature = 212.0;
        
        String endpoint = "http://viper.transpro.com:8180/axis/TemperatureConversion.jws";
        //String endpoint = "http://localhost:8180/axis/TemperatureConversion.jws";
	
	
	// First we set up a service object.
	Service service=null;
	try {
		service = new Service();
	}
	catch (Exception e) {
		System.out.println("Service Initialization Error");
		e.printStackTrace();
	}
        
	// Next, we set up a function call to that service.
	Call call=null;
	try {
        	call = (Call) service.createCall();
	}
	catch (Exception e) {
		System.out.println("Call Initialization Error");
		e.printStackTrace();
	}
	
	// Then, we point the service call at the server and application
	// running the service.
	try {
        	call.setTargetEndpointAddress(new URL(endpoint));
	}
	catch (Exception e) {
		System.out.println("Error Setting Target Endpoint");
		e.printStackTrace();
	}

	// Now we set up the method name, in this case c2f, the Celcius to Fahrenheit
	try {
		call.setOperationName("c2f");
	}
	catch (Exception e) {
		System.out.println("Error setting Operation!");
		e.printStackTrace();
	}
        
	// The temperature parameter we are sending back must be in the right format,
	// so we explicitly declare that it is an XML-compatible Double.
	try {
        	call.addParameter("temp", XMLType.XSD_DOUBLE, ParameterMode.IN);
	}
	catch (Exception e) {
		System.out.println("Error Adding Parameter");
		e.printStackTrace();
	}
        
	// Then, we specify in this application how we want the result back, I'm not sure
	// if it casts the result in the XML, but I wanted a String back instead of a double
	// because I was experimenting on something, but I forget exactly what.
	
	try {
        	//call.setReturnType(XMLType.XSD_DOUBLE);
		call.setReturnType(XMLType.XSD_STRING);
	}
	catch (Exception e) {
		System.out.println("Error Setting Return Type");
		e.printStackTrace();
	}
        
        System.out.println(""+ temperature + " Degrees F = ");

	// Now we actually call the method passing the array of parameters to the web service.
	// Once received, we print it.
	try {
		 String ret = (String) call.invoke (new Object [] { temperature });
		 System.out.println(ret);
	}
	catch (Exception e) {
		System.out.println("Error Retreiving Return Value");
		e.printStackTrace();
	}

		
	System.out.println("Degrees C");
    }
}