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}
}
else {
StringBuffer concat = new StringBuffer();
inti=0;
while (i < values.length) {
if (i != 0) {
concat.append(’,’);
}
concat.append(values[i++]);
}
res.setHeader(header.getName(), concat.toString());
}
The method onMessage is the application code for responding to the message sent by
PriceListRequest and internalized into msg. It uses the static MessageFactory object
messageFactory to create the SOAPMessage object message and then populates it with the
supplier’s current coffee prices.
The method doPost invokes onMessage and passes it msg. In this case, onMessage does not need
to use msg because it simply creates a message containing the supplier’s price list. The
onMessage method in ConfirmationServlet (see “Returning the Order Confirmation” on
page 1036), on the other hand, uses the message passed to it to get the order ID.
public SOAPMessage onMessage(SOAPMessage msg) {
SOAPMessage message = null;
try {
message = messageFactory.createMessage();
SOAPBody body = message.getSOAPBody();
QName bodyName =
new QName("http://sonata.coffeebreak.com", "price-list", "PriceList");
SOAPBodyElement list = body.addBodyElement(bodyName);
QName coffeeN = new QName("coffee");
SOAPElement coffee = list.addChildElement(coffeeN);
QName coffeeNm1 = new QName("coffee-name");
SOAPElement coffeeName = coffee.addChildElement(coffeeNm1);
coffeeName.addTextNode("Arabica");
QName priceName1 = new QName("price");
SOAPElement price1 = coffee.addChildElement(priceName1);
price1.addTextNode("4.50");
QName coffeeNm2 = new QName("coffee-name");
SAAJ Coffee Supplier Service
Chapter 36 • The Coffee Break Application 1035