Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.IOException;

import java.util.Map;
import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.core.JsonParseException;

import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

public class Main {
    public static <T> T convertObjectFromMap(Map<String, Object> map, String key, Class<T> tClass) {
        if (map == null)
            return null;
        Object obj = map.get(key);
        String json = null;
        if (obj != null)
            json = serilizeJavaObject(obj);
        else
            return null;

        ObjectMapper mapper = new ObjectMapper();

        T returnVal = null;
        try {
            returnVal = (T) mapper.readValue(json, tClass);
        } catch (JsonParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (JsonMappingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return returnVal;
    }

    public static String serilizeJavaObject(Object value) {
        ObjectMapper objectMapper = new ObjectMapper();
        String json = null;
        try {
            json = objectMapper.writeValueAsString(value);
        } catch (JsonGenerationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (JsonMappingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return json;
    }
}