JsonNode: (draft1) node value update

src/main/java/kz/arta/synergy/astdev/custom_bp/Main.java

@@ -27,6 +27,7 @@ import javax.ejb.ActivationConfigProperty;
 import javax.ejb.MessageDriven;
 import org.codehaus.jackson.map.ObjectMapper;
 import org.codehaus.jackson.node.ArrayNode;
+import org.codehaus.jackson.node.ObjectNode;
 import org.codehaus.jackson.type.TypeReference;
 
 @MessageDriven(name = "CustomBP", activationConfig = {
@@ -118,7 +119,19 @@ public class Main implements MessageListener {
         }
     }
 
-//    private void postDataToCard()
+    private void setComponentValueByID (String formJson, String oldFieldName, String newFieldName) {
+        ObjectMapper mapper = new ObjectMapper();
+        String result = new String();
+        
+        try {
+            
+            JsonNode rootNode = mapper.readTree(formJson);
+            
+        } catch (Exception exc) {
+            LOGGER.error("GMP: Invalid card data");
+            LOGGER.error(exc.getMessage(), exc);
+        }
+    }
     
     private void unlockRoute() {
         try {
@@ -150,6 +163,21 @@ public class Main implements MessageListener {
         return new String();
     }
     
+    private static void replaceValueInNode(Iterator<JsonNode> iter, String fieldName, String newFieldValue) {
+        try {
+            while (iter.hasNext()) {
+                JsonNode n = iter.next();
+                if (n.has("id")) {
+                    if (fieldName.equals(n.get("id").asText())) {
+                        ((ObjectNode) n).put("key", newFieldValue);
+                    }
+                }
+            }
+        } catch (Exception exc) {
+            LOGGER.error(exc.getMessage(), exc);
+        }
+    }
+    
     private static String searchInNode(Iterator<JsonNode> iter, String fieldName, fieldType ft) {
         String result = new String();
         // different form's component keeps data in different places
@@ -173,23 +201,24 @@ public class Main implements MessageListener {
         return result;
     }
     
-    private static String getComponentValueByID(final String formJson, final String fieldName, fieldType ft) {
+    private static String getComponentValueByID(String formJson, String fieldName, fieldType ft) {
         ObjectMapper mapper = new ObjectMapper();
         String result = new String();
-        String componentType = new String();
         
         try {
             JsonNode rootNode = mapper.readTree(formJson);        
             
-            // gettint first level (root) 'data' node, there may be only two levels
+            // getting first level (root) 'data' node, there may be only two levels
             ArrayNode rootDN = (ArrayNode) rootNode.get("data");
             Iterator<JsonNode> rootDNIterator = rootDN.getElements();
             
+            // searching for field value in root 'data' node
             result = searchInNode(rootDNIterator, fieldName, ft);
             if (!result.isEmpty()) {
                 return result;
             }
             
+            // root 'data' value does not contain the expected value, search in second (last possible) 'data'
             Iterator<JsonNode> rootDNIterator2 = rootDN.getElements();
             while (rootDNIterator2.hasNext()) {
                 ArrayNode childNode = (ArrayNode) rootDNIterator2.next().get("data");