pjs/js/rhino/examples/E4X/e4x_example.js

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JavaScript

/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Rhino code, released
* May 6, 1999.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1997-1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* John Schneider
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
print("----------------------------------------");
// Use the XML constructor to parse an string into an XML object
var John = "<employee><name>John</name><age>25</age></employee>";
var Sue ="<employee><name>Sue</name><age>32</age></employee>";
var tagName = "employees";
var employees = new XML("<" + tagName +">" + John + Sue + "</" + tagName +">");
print("The employees XML object constructed from a string is:\n" + employees);
print("----------------------------------------");
// Use an XML literal to create an XML object
var order = <order>
<customer>
<firstname>John</firstname>
<lastname>Doe</lastname>
</customer>
<item>
<description>Big Screen Television</description>
<price>1299.99</price>
<quantity>1</quantity>
</item>
</order>
// Construct the full customer name
var name = order.customer.firstname + " " + order.customer.lastname;
// Calculate the total price
var total = order.item.price * order.item.quantity;
print("The order XML object constructed using a literal is:\n" + order);
print("The total price of " + name + "'s order is " + total);
print("----------------------------------------");
// construct a new XML object using expando and super-expando properties
var order = <order/>;
order.customer.name = "Fred Jones";
order.customer.address.street = "123 Long Lang";
order.customer.address.city = "Underwood";
order.customer.address.state = "CA";
order.item[0] = "";
order.item[0].description = "Small Rodents";
order.item[0].quantity = 10;
order.item[0].price = 6.95;
print("The order custructed using expandos and super-expandos is:\n" + order);
// append a new item to the order
order.item += <item><description>Catapult</description><price>139.95</price></item>;
print("----------------------------------------");
print("The order after appending a new item is:\n" + order);
print("----------------------------------------");
// dynamically construct an XML element using embedded expressions
var tagname = "name";
var attributename = "id";
var attributevalue = 5;
var content = "Fred";
var x = <{tagname} {attributename}={attributevalue}>{content}</{tagname}>;
print("The dynamically computed element value is:\n" + x.toXMLString());
print("----------------------------------------");
// Create a SOAP message
var message = <soap:Envelope
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<soap:Body>
<m:GetLastTradePrice xmlns:m="http://mycompany.com/stocks">
<symbol>DIS</symbol>
</m:GetLastTradePrice>
</soap:Body>
</soap:Envelope>
// declare the SOAP and stocks namespaces
var soap = new Namespace("http://schemas.xmlsoap.org/soap/envelope/");
var stock = new Namespace ("http://mycompany.com/stocks");
// extract the soap encoding style and body from the soap message
var encodingStyle = message.@soap::encodingStyle;
print("The encoding style of the soap message is specified by:\n" + encodingStyle);
// change the stock symbol
message.soap::Body.stock::GetLastTradePrice.symbol = "MYCO";
var body = message.soap::Body;
print("The body of the soap message is:\n" + body);
print("----------------------------------------");
// create an manipulate an XML object using the default xml namespace
default xml namespace = "http://default.namespace.com";
var x = <x/>;
x.a = "one";
x.b = "two";
x.c = <c xmlns="http://some.other.namespace.com">three</c>;
print("XML object constructed using the default xml namespace:\n" + x);
default xml namespace="";
print("----------------------------------------");
var order = <order id = "123456" timestamp="Mon Mar 10 2003 16:03:25 GMT-0800 (PST)">
<customer>
<firstname>John</firstname>
<lastname>Doe</lastname>
</customer>
<item id="3456">
<description>Big Screen Television</description>
<price>1299.99</price>
<quantity>1</quantity>
</item>
<item id = "56789">
<description>DVD Player</description>
<price>399.99</price>
<quantity>1</quantity>
</item>
</order>;
// get the customer element from the orderprint("The customer is:\n" + order.customer);
// get the id attribute from the order
print("The order id is:" + order.@id);
// get all the child elements from the order element
print("The children of the order are:\n" + order.*);
// get the list of all item descriptions
print("The order descriptions are:\n" + order.item.description);
// get second item by numeric index
print("The second item is:\n" + order.item[1]);
// get the list of all child elements in all item elements
print("The children of the items are:\n" + order.item.*);
// get the second child element from the order by index
print("The second child of the order is:\n" + order.*[1]);
// calculate the total price of the order
var totalprice = 0;
for each (i in order.item) {
totalprice += i.price * i.quantity;
}
print("The total price of the order is: " + totalprice);
print("----------------------------------------");
var e = <employees>
<employee id="1"><name>Joe</name><age>20</age></employee>
<employee id="2"><name>Sue</name><age>30</age></employee>
</employees>;
// get all the names in e
print("All the employee names are:\n" + e..name);
// employees with name Joe
print("The employee named Joe is:\n" + e.employee.(name == "Joe"));
// employees with id's 1 & 2
print("Employees with ids 1 & 2:\n" + e.employee.(@id == 1 || @id == 2));
// name of employee with id 1
print("Name of the the employee with ID=1: " + e.employee.(@id == 1).name);
print("----------------------------------------");