Updating xml using xpath
Document Builder Instance()Document Builder() def input Stream = new Byte Array Input Stream(songs.bytes) def document = builder.parse(input Stream) def output = new String Writer() def converter = new Dom To Groovy(new Print Writer(output)) (1) converter.print(document) (2) String xml Recovered = new Groovy Shell() .evaluate(""" def writer = new String Writer() def builder = new
Markup Builder(writer) builder.$ return String() """) (3) assert new Xml Slurper().parse Text(xml Recovered)title.text() == 'Here I go' (4) is that when former creates the nodes they won’t be available until the document’s been evaluated again, so you should parse the transformed document again in order to be able to see the new nodes.
There are other useful expressions that you can use to query the data.
Read this w3school page for more details: are few examples of using different expressions of xpath to fetch some information from xml document.
A simple way is to load xml into Data Set then bind the Data Set to Grid View so you can edit XML files using Grid View. Once you get the stubs, then its actually a very neat way of doing it. id=53 I would download the source code as the HTML formatting is a little skew on that site.
Here is sample code: article shows how to edit xml-files using a Grid View control.
In order to handle namespaces with greater ease, XMLStarlet (versions 1.2.1 ) will use the namespace prefixes declared on the root element of the input document.
This time again the difference is whether you want the new nodes to be available right away or not.
Also another alternative is As I understand you need to add/delete/update the xml file. After that i want to be able to read every text ( see xml file) to buid an text file like this: The Distinguished Gentleman; Her Alibi; Other People's Money I personally would use xsd to generate the stub classes for your XML fragment, then use the XMLSerializer class to serialise and deserialise the data back and forth.
Markup Builder */ response.value.books.book.replace Node def new Node = response.value.books.book assert new Node.name() == "book" assert new [email protected] == "3" assert new Node.title.text() == "To Kill a Mockingbird" assert new Node.author.text() == "Harper Lee" assert new [email protected]() == "3"def response = new Xml Slurper().parse Text(books) /* Use the same syntax as
Markup Builder */ response.value.books.book.replace Node assert response.value.books.book.title.text() == "Don Quixote" /* That mkp is a special namespace used to escape away from the normal building mode of the builder and get access to helper markup methods 'yield', 'pi', 'comment', 'out', 'namespaces', 'xml Declaration' and 'yield Unescaped' */ def result = new Streaming Markup Builder()String() def changed Response = new Xml Slurper().parse Text(result) assert changed Response.value.books.book.title.text() == "To Kill a Mockingbird" Finally both parsers also use the same approach for adding a new attribute to a given attribute.
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Additional the user may create new records using some text fields and a button.