Developing Web Services with Open Source by Chris Peltz & Claire Rogers
WSJ Vol 03 Issue 12 - pg.12

Listing 1

public class Weather extends Object {
    public static Forecast getWeather(String zip)
	throws Exception  {
	Connection conn = null;
	Forecast f = null;
	try {
		Class.forName("com.mysql.jdbc.Driver").newInstance();
		conn=DriverManager.getConnection("jdbc:mysql://localhost/weatherdb",
			"hpuser","hppwd");
		String select = "select * from zipcode where zipcode = ?";
		PreparedStatement stmt = conn.prepareStatement(select);
		stmt.setString(1,zip);
		ResultsSet rs = stmt.executeQuery();
		rs.next();
		String city = rs.getString("city");
		String state = rs.getString("state");
		String date = "2003-04-02";

		select = "select * from forecast where zipcode = ? and dt = ?";
		stmt = conn.prepareStatement(select);
		stmt.setString(1,zip);
		stmt.setString(2,date);
		rs = stmt.executeQuery();
	   	rs.next();
	   	f = new Forecast(zip,city,state,date, rs.getString("forecast"),
		rs.getShort("high"),
 			rs.getShort("low"), rs.getByte("precip") );
		return f;
	}
}

Listing 2

public class Forecast {

	public Forecast(String z, String c, String s, String d, String f, short h, short l,
	byte p) {
		zip = z;
		city = c;
		state = s;
		date = d;
		forecast = f;
		hi = h;
		low = l;
		precip = p;
	}
}

Listing 3

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions ...">
 <wsdl:types>
  <schema ...>
   <import namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
   <complexType name="Forecast">
    <sequence>
     <element name="zip" nillable="true" type="xsd:string"/>
     <element name="city" nillable="true" type="xsd:string"/>
     <element name="state" nillable="true" type="xsd:string"/>
     <element name="date" nillable="true" type="xsd:string"/>
     <element name="forecast" nillable="true" type="xsd:string"/>
     <element name="hi" type="xsd:short"/>
     <element name="low" type="xsd:short"/>
     <element name="precip" type="xsd:byte"/>
    </sequence>
   </complexType>
  </schema>
 </wsdl:types>
 
 <wsdl:message name="getWeatherResponse">
   <wsdl:part name="getWeatherReturn" type="tns2:Forecast"/>
 </wsdl:message>
 <wsdl:message name="getWeatherRequest">
 <wsdl:part name="in0" type="xsd:string"/>
   </wsdl:message>
 <wsdl:portType name="Weather">
   <wsdl:operation name="getWeather" parameterOrder="in0">
     <wsdl:input name="getWeatherRequest" message="impl:getWeatherRequest"/>
     <wsdl:output name="getWeatherResponse" message="impl:getWeatherResponse"/>
   </wsdl:operation>
 </wsdl:portType>

 <wsdl:binding name="weatherSoapBinding" type="impl:Weather">
   ...
 </wsdl:binding>

 <wsdl:service name="WeatherService">
   <wsdl:port name="weather" binding="impl:weatherSoapBinding">
     <wsdlsoap:address location="http://localhost:8080/axis/services/weather"/>
   </wsdl:port>
 </wsdl:service>

</wsdl:definitions>

Listing 4

public weather.ws.Forecast getWeather(java.lang.String in0)
throws java.rmi.RemoteException {
		weather.Weather w = new weather.Weather();
	weather.Forecast f = w.getWeather(in0);
	weather.ws.Forecast f1 = new weather.ws.Forecast();
	f1.setZip(f.zip);
	f1.setCity(f.city);
	f1.setState(f.state);
	...
	return f1;
}

Listing 5

<service name="weather" provider="java:RPC" style="rpc" use="encoded">
	<parameter name="wsdlTargetNamespace" value="urn:weather"/>
	<parameter name="wsdlServiceElement" value="WeatherService"/>
	<parameter name="wsdlServicePort" value="weather"/>
	<parameter name="className" value="weather.ws.WeatherSoapBindingImpl"/>
	<parameter name="wsdlPortType" value="Weather"/>
	<operation name="getWeather" qname="operNS:getWeather"
	xmlns:operNS="urn:weather" returnQName="getWeatherReturn"
	returnType="rtns:Forecast" xmlns:rtns="http://weather" >
<parameter name="in0" type="tns:string" xmlns:tns="http://www.w3.org/2001/XMLSchema"/>
	</operation>
...
</service>

Listing 6

<target name="wsdl2java" depends="java2wsdl" description="Create Java Bindings">
	<axis-wsdl2java
		output="${proj.dir}"
		serverside="true"
		url="${proj.dir}/Weather.wsdl">
	</axis-wsdl2java>
</target>
<target name="compilews" depends="wsdl2java" description="Compile Web Services">
	<javac srcdir="${ws.dir}"
		destdir="${build.classes.dir}"
		classpathref="axis.classpath">
	</javac>
</target>
<target name="deploy" depends="compilews" description="Deploy WS">
	<jar destfile="${proj.dir}/Weather.jar">
		<fileset dir="${proj.dir}/weather">
			<include name="**/*.class"/>
		</fileset>
	</jar>
	<copy file="${proj.dir}/Weather.jar" todir="${axis.web-inf}"/>
	<axis-admin xmlfile="${proj.dir}/weather/ws/deploy.wsdd"/>
</target>

Listing 7

public class WeatherClient {
  public static void main(String [] args) {
    WeatherService service = new WeatherServiceLocator();
    Weather weather = service.getweather();
    Forecast forecast = weather.getWeather(args[0]);

    System.out.println("Forecast:" + forecast.getForecast());
 }
}

Listing 8

# setup protocol
protocol = ProtocolHandler.getProtocol("soap")
body = SOAPBody()
protocol.setBody(body)

# define the location of the web service
protocol.setHost("localhost")
protocol.setPath("axis/servlet/AxisServlet")
protocol.setPort( 8081 )

# Send a request to the getWeather method in the weather web service
body.setTarget("weather")
body.setMethod("getWeather")
body.addParameter( "zip", String, "80538", None )

# create a bean serializer
beanSer = BeanSerializer()
qName = QName("http://weather", "Forecast")
protocol.setMapTypes( Constants.NS_URI_SOAP_ENC, qName, Forecast, beanSer, beanSer  )

# print result
for i in range(100):
    response = protocol.connect()
print "TIME: ", Long(response.getTotalTime()).toString()