Developing org.w3c.dom.Node implementations specifically tailored for handling JSON data

I am in search of a way to utilize org.w3c.dom.Node for data types other than XML, such as json or avro. With this implementation, I can make use of functions designed for org.w3c.dom.Node, like xpath.

org.w3c.dom.Node document = new JsonDocument(myJsonMessage);

XPathFactory xpathFactory = XPathFactory.newInstance();
XPath xpath = xpathFactory.newXPath();

String msg = xpath.evaluate("/document/element", document);

The value of msg represents the result of x path evaluation on a json document, requiring an implementation of Node/Document for Json.

javajsondom

Answer №1

One easy approach could be to transform your JSON data into XML format and then leverage your current tools for executing xpath queries.

Learn how to Convert JSON to XML

Answer №2

When working with org.w3c.dom.Node, it serves as an interface to implement various formats like json, avro, and bson for MongoDB. This implementation allows us to utilize xpath and xslt functionalities on these formats seamlessly.

It is important to note that some document types are more "rich" than others, such as XML which includes a value for each node while other formats may not.

For instance:

<MyDocument>
  <MyChild1>Child1Value</MyChild1>
  <MyChild2>Child2Value</MyChild2>
  <MyChild3 attribute1="Child3 attribute1" attribute2="Child3 attribute2"></MyChild3>
</MyDocument>

To represent the same document in JSON, a convention must be introduced. In the following example, the key "_rootValue" is used for the node value:

  {
    "MyDocument": {
      "MyChild1": {
        "_rootValue": "Child1Value"
      },
      "MyChild2": {
        "_rootValue": "Child2Value"
      },
      "MyChild3": {
        "attribute1": "Child3 attribute1",
        "attribute2": "Child3 attribute2"
      },
    }
  }

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