Handle duplicate elements as Array when converting XML to JSON

src/main/java/com/paymentcomponents/libraries/rest/sdk/wrapper/utils/DuplicateToArrayJsonNodeDeserializer.java

@@ -0,0 +1,29 @@
+package com.paymentcomponents.libraries.rest.sdk.wrapper.utils;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.deser.std.JsonNodeDeserializer;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.JsonNodeFactory;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+public class DuplicateToArrayJsonNodeDeserializer extends JsonNodeDeserializer {
+
+ @Override
+ protected void _handleDuplicateField(JsonParser p, DeserializationContext ctxt,
+ JsonNodeFactory nodeFactory, String fieldName, ObjectNode objectNode,
+ JsonNode oldValue, JsonNode newValue) throws JsonProcessingException {
+ ArrayNode node;
+ if (oldValue instanceof ArrayNode) {
+ node = (ArrayNode) oldValue;
+ node.add(newValue);
+ } else {
+ node = nodeFactory.arrayNode();
+ node.add(oldValue);
+ node.add(newValue);
+ }
+ objectNode.set(fieldName, node);
+ }
+}

src/main/java/com/paymentcomponents/libraries/rest/sdk/wrapper/utils/Utils.java

@@ -1,6 +1,7 @@
 package com.paymentcomponents.libraries.rest.sdk.wrapper.utils;
 
 import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.module.SimpleModule;
 import com.fasterxml.jackson.dataformat.xml.XmlMapper;
 
 import javax.xml.datatype.DatatypeConfigurationException;
@@ -17,11 +18,16 @@ public static String convertXmlToJson(String xml, String additionalRootElement)
  String json = "";
  try {
  XmlMapper xmlMapper = new XmlMapper();
+ xmlMapper.registerModule(new SimpleModule().addDeserializer(
+ JsonNode.class,
+ new DuplicateToArrayJsonNodeDeserializer()
+ ));
  JsonNode node = xmlMapper.readTree(xml.getBytes());
  json = node.toString();
  if (additionalRootElement != null && !additionalRootElement.isEmpty()) {
  json = "{ \"" + additionalRootElement + "\": " + json + " } ";
  }
+ json = json.replaceAll("\"\":", "\"Value\":");
  } catch (Exception e) {
  e.printStackTrace();
  }