package com.fasterxml.jackson.module.jaxb.deser;

import java.io.IOException;
import java.util.Iterator;

import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import com.fasterxml.jackson.core.*;

import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import com.fasterxml.jackson.databind.node.ArrayNode;

Author:Ryan Heaton
Deprecated:Since 2.10 not used
/** * @author Ryan Heaton * * @deprecated Since 2.10 not used */
@Deprecated // since 2.10 -- not used anywhere? public class DomElementJsonDeserializer extends StdDeserializer<Element> { private static final long serialVersionUID = 1L; private final DocumentBuilder builder; public DomElementJsonDeserializer() { super(Element.class); try { DocumentBuilderFactory bf = DocumentBuilderFactory.newInstance(); bf.setNamespaceAware(true); // [modules-base#84]: add secure processing settings bf.setExpandEntityReferences(false); builder = bf.newDocumentBuilder(); try { bf.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true); } catch(Exception e) { // not necessarily supported by all implementations } } catch (ParserConfigurationException e) { throw new RuntimeException(); } } public DomElementJsonDeserializer(DocumentBuilder b) { super(Element.class); builder = b; } @Override public Element deserialize(JsonParser p, DeserializationContext ctxt) throws IOException { Document document = builder.newDocument(); JsonNode n = p.readValueAsTree(); return fromNode(p, document, n); } protected Element fromNode(JsonParser p, Document document, JsonNode jsonNode) throws IOException { String ns = jsonNode.get("namespace") != null ? jsonNode.get("namespace").asText() : null; String name = jsonNode.get("name") != null ? jsonNode.get("name").asText() : null; if (name == null) { throw JsonMappingException.from(p, "No name for DOM element was provided in the JSON object."); } Element element = document.createElementNS(ns, name); JsonNode attributesNode = jsonNode.get("attributes"); if (attributesNode != null && attributesNode instanceof ArrayNode) { Iterator<JsonNode> atts = attributesNode.elements(); while (atts.hasNext()) { JsonNode node = atts.next(); ns = node.get("namespace") != null ? node.get("namespace").asText() : null; name = node.get("name") != null ? node.get("name").asText() : null; String value = node.get("$") != null ? node.get("$").asText() : null; if (name != null) { element.setAttributeNS(ns, name, value); } } } JsonNode childsNode = jsonNode.get("children"); if (childsNode != null && childsNode instanceof ArrayNode) { Iterator<JsonNode> els = childsNode.elements(); while (els.hasNext()) { JsonNode node = els.next(); name = node.get("name") != null ? node.get("name").asText() : null; String value = node.get("$") != null ? node.get("$").asText() : null; if (value != null) { element.appendChild(document.createTextNode(value)); } else if (name != null) { element.appendChild(fromNode(p, document, node)); } } } return element; } }