Load, modify, and write an XML document in Groovy

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I have an XML document that I want to load from a file, modify a few specific elements, and then write back to disk.

I can't find any examples of how to do this in Groovy.

You can just modify the node's value property to modify the values of elements.

/* input:
<root>
  <foo>
    <bar id="test">
      test
    </bar>
    <baz id="test">
      test
    </baz>
  </foo>
</root>
*/

def xmlFile = "/tmp/test.xml"
def xml = new XmlParser().parse(xmlFile)
xml.foo[0].each { 
    it.@id = "test2"
    it.value = "test2"
}
new XmlNodePrinter(new PrintWriter(new FileWriter(xmlFile))).print(xml)

/* output:
<root>
  <foo>
    <bar id="test2">
      test2
    </bar>
    <baz id="test2">
      test2
    </baz>
  </foo>
</root>
*/

Groovy Edit/Modify XML Examples, Below are examples on how to modify or edit existing XML document. The example uses XmlNodePrinter to output the XML representation of  In case we need to modify the structure of our XML with XmlSlurper, we have to reinitialize our articles object to see the results. We can achieve that using the combination of the groovy.util.XmlSlurper#parseText and the groovy.xmlXmlUtil#serialize methods. 4.3. Modifying a Node

Processing XML, Reading and parsing an XML file is probably the most common XML operation a developer We can also modify the values of nodes using the XmlParser. However, the output structure uses the groovy.util.slurpersupport. XML Parser − The Groovy XmlParser class employs a simple model for parsing an XML document into a tree of Node instances. Each Node has the name of the XML element, the attributes of the element, and references to any child Nodes.

There's a pretty exhaustive set of examples for reading/writing XML using Groovy here. Regarding the loading/saving the data to/from a file, the various methods/properties that Groovy adds to java.io.File, should provide the functionality you need. Examples include:

File.write(text)
File.text
File.withWriter(Closure closure) 

See here for a complete list of these methods/properties.

Working with XML in Groovy, I have an XML document that I want to load from a file, modify a few specific elements, and then write back to disk. I can't find any examples of how to do this in  Comparing Java and Groovy XML parsing. At the end of "Reaching for Each," I introduced the simple XML document shown in Listing 1. (I've added the type attribute this time to make things slightly more interesting.) Listing 1. An XML document listing languages I know

For the one who find the output empty, here is the solution:

def xml = file("${projectDir}/src/main/AndroidManifest.xml")
def manifest = new XmlSlurper().parse(file(xml))
manifest.@package = "com.newapp.id"
xml.withWriter {out->
    XmlUtil.serialize(manifest, out)
}

Load, modify, and write an XML document in Groovy - xml - html, Syntax. public MarkupBuilder(). The MarkupBuilder is used to construct the entire XML document. The XML document is created by first creating an object of the  The below flow is an example of writing the request to a file and then pulling it back in to another request. Step 1 - Some REST request. Step 2 - Copy the Raw Request value from Step 1 to file. Step 3 - Load the Raw Request from file. Step 4 - Run REST Request with payload form file . Contents of 'Request Copy - Groovy Script'

Groovy - XML, This is a convenient way to parse and modify XML documents in an easy fashion, The examples provided below are to be used inside a Groovy script setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd"", false​); Output. 14227[connector.http.mule.default.receiver.02]INFO ( ?:?)  This is my Groovy code: // def xml = new XmlParser().parse(fileName) xml.each { e -> // some changes are being made to XML xml.append("test", "test me") } def writer = new FileWriter(newFileName) new XmlNodePrinter(new PrintWriter(writer)).print(xml) The code works, but the output XML has a lot of unnecessary white spaces.

Processing XML with Groovy + XMLSlurper, Replace the sample script with the code below and modify to suit your getProperties(i); // Build XML Document SAXBuilder builder = new  Load, modify, and write an XML document in Groovy. 493. write yaml file in jenkins with groovy. 0. Use groovy script to create folder on Jenkins slave. Hot

Article: How to Manipulate XML Data using Groovy, In fact, parsing and generating XML in the Java language feels oddly foreign and Parsing this trivial XML document is decidedly nontrivial in the Java The only change from the Groovy example in Listing 3 is flipping the  File file = new File("out.txt") file.append("hello ") println file.text Write and Append If we mix the calls to write and to append we'll get some strange results.

Comments
  • This works but will mess up the formatting in your file and delete all comments. Here's an alternative that preserves formatting and comments: stackoverflow.com/questions/20690526/…
  • You can also preserve the format by simply pulling new XmlNodePrinter(new PrintWriter(new FileWriter(xmlFile))) into a variable nodePrinter and setting nodePrinter.preserveWhitespace = true before calling print(xml)
  • For me output file is empty
  • I got a similar issue in here.Could you help me?It's consuming my 2 days time.😳
  • @Gangnus Thanks for the constructive criticism.
  • But you really haven't said WHAT functionality he needs.