Java class with method to get node value from JSON String using Jackson

getNodeText.java

import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.map.ObjectMapper;

/**
 * The readNodeValue method allows us to get a node value
 * using the JSON Jackson library in Java. In this case
 * we are interested in getting the value of a child node 
 * nested inside of a father node. 
 * 
 * The JSON input would be like this:
 * {FatherNode: { ChildNode:(value),...}}
 * 
 * @author Enrique Valdes
 **/
public class ReadJsonNode {
  
  public static String readNodeValue(String jsonInput){
    
    ObjectMapper objectMapper = new ObjectMapper();
    JsonNode jsonNode;
    String value = "";
    
    try {
      jsonNode = objectMapper.readTree(jsonInput);
      jsonNode = jsonNode.get("FatherNode");
      value =  jsonNode.get("ChildNode").getTextValue();
    } catch (Exception e) {
      e.printStackTrace();
    }
    return value;
  }
  
}