Package com.avoka.tm.util

Class XmlDoc

java.lang.Object
com.avoka.tm.util.XmlDoc
public class XmlDoc extends Object

Provides XML Document class for use in Groovy scripts. An XmlDoc object wraps an underlying XML Document object and provides convenience methods for performing access and modification operations.

Examples

Please find the XML Document examples below.

XML Read Example

This Groovy example creates an XmlDoc from a delivery formXml string value, and then reads out a values and puts them in a map. 

 import com.avoka.tm.util.*

 XmlDoc xmlDoc = new XmlDoc(formXml)

 Map contact = [:]
 contact.firstName = xmlDoc.getText('//YourDetails/FirstName')
 contact.lastName = xmlDoc.getText('//YourDetails/LastName')
 contact.email = xmlDoc.getText('//YourDetails/Email')
 contact.state = xmlDoc.getText('//Location/State')

Please see the W3C Schools XPath Syntax for more examples.

XML Write Example

This Groovy example writes form prefill data into a formXml XML Document. 

 import com.avoka.tm.util.*

 XmlDoc xmlDoc = new XmlDoc(formXml)

 def userDetails = ...

 xmlDoc.setText('/AvokaSmartForm/YourDetails/FirstName', userDetails.firstName)
 xmlDoc.setText('/AvokaSmartForm/YourDetails/LastName', userDetails.lastName)
 xmlDoc.setText('/AvokaSmartForm/YourDetails/Email', userDetails.email)

You can also add Nodes or a list of Nodes to an XML Document using the addNode(String, Node) or addNodeList(String, List) methods. See the Composer Cascading DD List Example later to see this in action.

Adding XML Content as Text Example

When creating large amounts of XML it is often easer to use string templating techniques to create the XML content and then add this to the target XML document.

The example below is using the addContent(String, String, String) method to add the '/ItemList/Item' elements from the source prefillDataContext XML text to the xmlDoc object under the node '/AvokaSmartForm/Accounts'. 

 import com.avoka.tm.util.*

 // Text prefill XML content
 String prefillDataContent = '<ItemList> <Item>A1</Item> <Item>B2</Item> </ItemList>'

 // Target document to add prefill content to
 XmlDoc xmlDoc = new XmlDoc(formXml)
 xmlDoc.addContent(prefillDataContent, '/ItemList/Item', '/AvokaSmartForm/Accounts')

If you need to replace existing content in an XML Document rather than adding to it, then use the removeNodes(String) method first before adding the content. For example: 

 import com.avoka.tm.util.*

 String prefillDataContent = '<ItemList> <Item>A1</Item> <Item>B2</Item> </ItemList>'

 XmlDoc xmlDoc = new XmlDoc(formXml)

 // Remove any existing data
 xmlDoc.removeNodes('/AvokaSmartForm/Accounts')

 xmlDoc.addContent(prefillDataContent, '/ItemList/Item', '/AvokaSmartForm/Accounts')

See http://en.wikibooks.org/wiki/XQuery for information on how to use XQuery.

Since:
5.0.0

  • Constructor Details

    • XmlDoc

      public XmlDoc(Object source)
      Create an XmlDoc object from the given XML source, either String, Document, InputStream or byte[].
      Parameters:
      source - the source XML, either String, Document, InputStream or byte[].

  • Method Details

    • addContent

      public Node addContent(String sourceContent, String sourceXPath, String targetXPath)
      Add the given XML content from the source XPath to this XML Document object at the specified target XPath.
      Parameters:
      sourceContent - the source XML content to add to the XML Document
      sourceXPath - the XPath to the node within the source XML content to add
      targetXPath - the XPath to add the content to in this XML Document
      Returns:
      the Node of the target XPath

    • addNode

      public Node addNode(String xpath, Node node)
      Add the given Node to the XML Document object at to specified XPath. If the XPath nodes do not exist in the document they will be created. This method will return a deep cloned copy of the given Node which was added to the XML Document at the specified path. XPath expressions must use an absolute path to avoid ambiguity when creating XML path elements, using // search criteria is not permitted.
      Parameters:
      xpath - the XPath location of where to add the node
      node - the Node to add to the XML Document
      Returns:
      the cloned node added to the XML Document at the specified XPath.

    • addNodeList

      public void addNodeList(String xpath, List<Node> nodeList)
      Add the given Node list to the XML Document object at to specified XPath. If the XPath nodes do not exist in the document they will be created. This method will return a deep cloned copy of the given list of Node which was added to the XML Document at the specified path. XPath expressions must use an absolute path to avoid ambiguity when creating XML path elements, using // search criteria is not permitted.
      Parameters:
      xpath - the XPath location of where to add the nodes
      nodeList - the list of Nodes to add to the XML Document

    • getDocument

      public Document getDocument()
      Return the underlying XML Document object.
      Returns:
      the underlying XML Document object.

    • getNode

      public Node getNode(String xpath)
      Return the XML node for the given XPath.
      Parameters:
      xpath - the XPath expression of the node
      Returns:
      the node for the given xpath

    • getNodeList

      public List<Node> getNodeList(String xpath)
      Return the list of XML Nodes for the given XPath expression.
      Parameters:
      xpath - the XPath expression
      Returns:
      the list of XML Nodes for the given XPath expression

    • getText

      public String getText(String xpath)
      Return the text value for the given XPath or null if not found. 
       def xmlDoc = new com.avoka.component.xml.XmlDoc(submissionXml)

 def contact = [:]
 contact.firstName = xmlDoc.getText('//YourDetails/FirstName')
 contact.lastName = xmlDoc.getText('//YourDetails/LastName')
 contact.email = xmlDoc.getText('//YourDetails/Email')
 contact.state = xmlDoc.getText('//Location/State')
      Parameters:
      xpath - the XPath to search
      Returns:
      the text value for the given XPath or null if not found

    • setNode

      public Node setNode(String xpath)

      Create the XML elements specified by the XPath expression if they don't exist, and return the leaf node.

      XPath expressions must use an absolute path to avoid ambiguity when creating XML path elements, using // search criteria is not permitted. 

       def line1 = xmlDoc.set('/AvokaSmartForm/YourDetails/Address/Line1")
      Parameters:
      xpath - the XML elements to create
      Returns:
      the node specified by the XPath if found or the created XML node

    • setText

      public Node setText(String xpath, String textContent)

      Set the content text on the XML element specified by the XPath expression. This method will create the elements specified by the path if they don't exist.

      XPath expressions must use an absolute path to avoid ambiguity when creating XML path elements, using // search criteria is not permitted. 

       xmlDoc.setText('/AvokaSmartForm/YourDetails/Address/Line1", "30 George Street")

      Example

       def xmlDoc = new com.avoka.component.xml.XmlDoc(schemaSeed)

 def userDetails = ...

 xmlDoc.setText('/AvokaSmartForm/YourDetails/FirstName', userDetails.firstName)
 xmlDoc.setText('/AvokaSmartForm/YourDetails/LastName', userDetails.lastName)
 xmlDoc.setText('/AvokaSmartForm/YourDetails/Email', userDetails.email)
      Parameters:
      xpath - the XML element to set the text on, this path will be created if it does not exist
      textContent - the element content text value to set
      Returns:
      the node specified by the XPath if found or the created XML node

    • evalXPath

      public String evalXPath(String xpath)
      Evaluate the XPath expression and return the given string value.

      Example

       def xmlDoc = new XmlDoc(schemaSeed)

 def fullname = xmlDoc.evalXPath("concat(//FirstName, ' ',//LastName)")
      Parameters:
      xpath - the XPath expression (required)
      Returns:
      the evaluated XPath expression as a string value
      Since:
      4.0.0

    • removeNodes

      public boolean removeNodes(String xpath)
      Remove the nodes from the XML Document object specified by the XPath.
      Parameters:
      xpath - the XPath of the nodes to remove
      Returns:
      true if a one or more nodes were removed from the XML Document object

    • removeNodeChildren

      public boolean removeNodeChildren(String xpath)
      Remove the child nodes from the XML Document element specified by the XPath.
      Parameters:
      xpath - the XPath of the parent node whose children should be removed (required)
      Returns:
      true if a one or more nodes were removed from the XML Document object

    • getDataMap

      public Map<String,String> getDataMap(String jsonMap)
      Return a map of XML data element values from the document using the given jsonMap definition.

      Example JSON mapping format: 

       {
    "firstName": "//SmartForm/FormData/Contact/FirstName",
    "lastName": "//SmartForm/FormData/Contact/LastName",
    "email": "//SmartForm/FormData/Contact/Email"
 }
      This method provides a convenience wrapper around XmlUtils.getXmlDataMap(Document, String).
      Parameters:
      jsonMap - the JSON format name to XPath mapping definition (required)
      Returns:
      a map of XML data element values from the given document using the jsonMap definition

    • toFormattedString

      public String toFormattedString()
      Return the formatted string representation of the Document.
      Returns:
      the formatted string representation of the Document

    • toString

      public String toString()
      Return the string representation of the Document.
      Overrides:
      toString in class Object
      Returns:
      the string representation of the Document