XML Parsing in Apex
Read the response stream as a XML document using DOM.XmlNode class.
public class XmlToJsonConvert {
public static Map<String,Object> xmlToMap(String xml){
//Intializing XML Document
Dom.document doc = new Dom.Document();
doc.load(xml);
//Getting root element and parse it recursively
Dom.XMLNode root = doc.getRootElement();
Object temp = parse(root);
//final map to store data
Map<String,Object> finalJsonResult = new Map<String,Object> {root.getName() => temp};
return finalJsonResult;
}
public static Object parse(Dom.XMLNode node){
Map<String,Object> nodeNameCount = new Map<String,Object>();
Map<String, List<Object>> jsonResult = new Map<String, List<Object>>();
// get child element
List<Dom.XMLNode> childrens = node.getChildElements();
// if it is emty then retun text value
if(childrens.isEmpty()){
return node.getText();
}
// Create map to store child ocuurence count
Map<String,Integer> nodeNameCountMap = new Map<String,Integer>();
// itegrate child elemets and make a map
for(Dom.XMLNode child : childrens){
String nodeName = child.getName();
if(!nodeNameCountMap.containsKey(nodeName)){
nodeNameCountMap.put(nodeName,0);
}
Integer oldCound = nodeNameCountMap.get(nodeName);
nodeNameCountMap.put(nodeName, oldCound + 1);
}
//iterating over child elements and parsing them recursively
for(Dom.XMLNode child : childrens) {
Object temp = parse(child);
String nodeName = child.getName();
// Check child is an array
Boolean childIsArray = ( nodeNameCountMap.get(nodeName) > 1);
//if array then save value in list else string
if(childIsArray){
if(jsonResult.get(nodeName) == null){
jsonResult.put(nodeName,new List<Object>{temp});
}else{
List<Object> tempList = (List<Object>) jsonResult.get(nodeName);
tempList.add(temp);
jsonResult.put(nodeName, tempList);
}
}else{
jsonResult.put(nodeName,new List<Object>{temp});
}
}
return jsonResult;
}
}
//input xml data
String xml = '<customers><customer id="55000"><name>Test Cust</name><address><street>100 Main</street><city>Pune</city><state>MH</state><zip>01701</zip></address><address><street>720 Prospect</street><city>Nashik</city><state>MH</state><zip>01701</zip></address></customer></customers>';
Map<String, Object> jsonResult = XmlToJsonConvert.xmlToMap(xml);
System.debug(jsonResult);
System.debug(Json.serialize(jsonResult));
Debug Log:
