edu.illinois.ncsa.domain.util

Class BeanUtil

java.lang.Object

edu.illinois.ncsa.domain.util.BeanUtil

public class BeanUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
BeanUtil()

Method Summary

Modifier and Type	Method and Description
static <T> T	JSONToObject(InputStream is, Class<T> classname) Converts a JSON inputstream to an actual object.
static <T> T	JSONToObject(String json, Class<T> classname) Converts a JSON string to an actual object.
static String	objectToJSON(Object object) Convert the object to JSON.
static <T> T	removeDuplicate(T obj) Check the object for any objects that have same ID but are different instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BeanUtil

public BeanUtil()

Method Detail

JSONToObject

public static <T> T JSONToObject(String json,
                                 Class<T> classname)
                          throws IOException

Converts a JSON string to an actual object. This will convert the string to an object specified by classname. This code will remove any duplicates from the objects created.

Parameters:

json - the json encoded object.

classname - the classname to which the json object should be converted.

Returns:

an object of the same type as the classname.

Throws:

IOException - throws an IOException if the string could not be converted to an actual object.

objectToJSON

public static String objectToJSON(Object object)
                           throws IOException

Convert the object to JSON.

Parameters:

object - the object to be converted

Returns:

a string with the encoded json.

Throws:

IOException - throws an IOException if the object could not be converted.

JSONToObject

public static <T> T JSONToObject(InputStream is,
                                 Class<T> classname)
                          throws IOException

Converts a JSON inputstream to an actual object. This will convert the inputstream to an object specified by classname. This code will remove any duplicates from the objects created.

Parameters:

is - the inputstream with the json code.

classname - the classname to which the json object should be converted.

Returns:

an object of the same type as the classname.

Throws:

IOException - throws an IOException if the string could not be converted to an actual object.

removeDuplicate

public static <T> T removeDuplicate(T obj)

Check the object for any objects that have same ID but are different instance. This can happen when an object is serialized and deserialized (for example to and from JSON). If another object with the same ID has been seen it will replace the requested object. This function will do a deep check of the object.

Parameters:

obj - the object to be checked for duplicates.

Returns:

the object with all duplicates removed