Ce contenu n'est pas disponible dans la langue sélectionnée.
7.7. Mixed-DOM-and-SAX Example
Procedure 7.1. Task
- Take an XML message such as the following sample:
<shopping> <category type="groceries"> <item>Chocolate</item> <item>Coffee</item> </category> <category type="supplies"> <item>Paper</item> <item quantity="4">Pens</item> </category> <category type="present"> <item when="Aug 10">Kathryn's Birthday</item> </category> </shopping>
- You can modify the "supplies" category in the above shopping list by adding two more "pens". To do this, write a simple Groovy script and aim it at the message's <category> elements.
- As a result, the script simply iterates over the <item> elements in the category, and in instances where the category type is "supplies" and the item is "pens", the quantity is incremented by two:
<?xml version="1.0"?> <smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd" xmlns:core="http://www.milyn.org/xsd/smooks/smooks-core-1.3.xsd" xmlns:g="http://www.milyn.org/xsd/smooks/groovy-1.1.xsd"> <core:filterSettings type="SAX" /> <g:groovy executeOnElement="category"> <g:script> <!-- use(DOMCategory) { // Modify "supplies": we need an extra 2 pens... if (category.'@type' == 'supplies') { category.item.each { item -> if (item.text() == 'Pens') { item['@quantity'] = item.'@quantity'.toInteger() + 2; } } } } // When using the SAX filter, we need to explicitly write the fragment // to the result stream... writeFragment(category); --> </g:script> </g:groovy> </smooks-resource-list>