Examining MyUddiPing

<< MyUddiPing.java | SOAPConnectionFactory Class >>

154

SOAP

WITH

TTACHMENTS

API

FOR

AVA

The file

build.xml

is the

asant

build file for this example.

The file

build.properties

defines one property.

The file

uddi.properties

contains the URL of the destination (a UDDI test reg-

istry). To install this registry, follow the instructions in Preliminaries: Getting
Access to a Registry (page 175). If the Application Server where you install the
registry is running on a remote system, open

uddi.properties

in a text editor

and replace

localhost

with the name of the remote system.

The

prepare

target creates a directory named

build

. To invoke the

prepare

tar-

get, you type the following at the command line:

asant prepare

The target named

build

compiles the source file

MyUddiPing.java

and puts the

resulting

.class

file in the

build

directory. So to do these tasks, you type the

following at the command line:

asant build

Examining MyUddiPing

We will go through the file

MyUddiPing.java

a few lines at a time, concentrat-

ing on the last section. This is the part of the application that accesses only the
content you want from the XML message returned by the UDDI registry.

The first lines of code import the interfaces used in the application.

import javax.xml.soap.SOAPConnectionFactory;
import javax.xml.soap.SOAPConnection;
import javax.xml.soap.MessageFactory;
import javax.xml.soap.SOAPMessage;
import javax.xml.soap.SOAPHeader;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPBodyElement;
import javax.xml.soap.SOAPElement;
import javax.xml.namespace.QName;
import java.net.URL;
import java.util.Properties;
import java.util.Enumeration;
import java.util.Iterator;
import java.io.FileInputStream;