io.cloudex.framework.utils

Class ObjectUtils

java.lang.Object

io.cloudex.framework.utils.ObjectUtils

public final class ObjectUtils
extends Object

Author:

Omer Dawelbeit (omerio)

Field Summary

Fields

Modifier and Type	Field and Description
static com.google.gson.Gson	GSON
static javax.validation.Validator	VALIDATOR
static javax.validation.ValidatorFactory	VALIDATOR_FACTORY

Constructor Summary

Constructors

Constructor and Description
ObjectUtils()

Method Summary

Modifier and Type	Method and Description
static <T> T	createInstance(Class<T> classOfT, String className) Create an instance of the provided class
static Set<String>	csvToSet(String csv) comma separated string to set
static String	getStringPropertyFromJson(String json, String key) retrive the value of a json property
static <T> List<String>	getValidationErrors(Class<T> classOfT, T object) return a list of validation errors
static <T> boolean	isValid(Class<T> classOfT, T object) check if this instance is valid
static Map<String,Object>	jsonToMap(String json) Convert a json string to map
static void	populate(Object bean, Map<String,? extends Object> properties) Wrapper for BeanUtils.populate, validates that bean has all the properties referenced in the properties map
static void	populate(Object bean, Map<String,? extends Object> properties, boolean validate) Wrapper for BeanUtils.populate, validates that bean has all the properties referenced in the properties map

Methods inherited from class java.lang.Object

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

Field Detail

GSON

public static final com.google.gson.Gson GSON

VALIDATOR_FACTORY

public static final javax.validation.ValidatorFactory VALIDATOR_FACTORY

VALIDATOR

public static final javax.validation.Validator VALIDATOR

Constructor Detail

ObjectUtils

public ObjectUtils()

Method Detail

createInstance

public static <T> T createInstance(Class<T> classOfT,
                                   String className)
                            throws ClassInstantiationException

Create an instance of the provided class

Parameters:

classOfT - - the type of the object to return

className - - the full className

Returns:

an instantiated object casted to type T

Throws:

ClassInstantiationException - if the creation of the instance fails

populate

public static void populate(Object bean,
                            Map<String,? extends Object> properties)
                     throws InstancePopulationException

Wrapper for BeanUtils.populate, validates that bean has all the properties referenced in the properties map

Parameters:

bean - - the bean to populate

properties - - a map of key value pairs used to populate bean

Throws:

InstancePopulationException - if the population of the bean fails

populate

public static void populate(Object bean,
                            Map<String,? extends Object> properties,
                            boolean validate)
                     throws InstancePopulationException

Wrapper for BeanUtils.populate, validates that bean has all the properties referenced in the properties map

Parameters:

bean - - the bean to populate

properties - - a map of key value pairs used to populate bean

validate - - validate that all provided properties are in bean

Throws:

InstancePopulationException - if the population of the bean fails

jsonToMap

public static Map<String,Object> jsonToMap(String json)

Convert a json string to map

Parameters:

json -

Returns:

csvToSet

public static Set<String> csvToSet(String csv)

comma separated string to set

Parameters:

csv -

Returns:

getStringPropertyFromJson

public static String getStringPropertyFromJson(String json,
                                               String key)

retrive the value of a json property

Parameters:

json -

key -

Returns:

isValid

public static <T> boolean isValid(Class<T> classOfT,
                                  T object)

check if this instance is valid

Parameters:

classOfT - - class of the object to validate

object - - the object to validate

Returns:

true if valid, false otherwise

getValidationErrors

public static <T> List<String> getValidationErrors(Class<T> classOfT,
                                                   T object)

return a list of validation errors

Parameters:

classOfT - - class of the object to validate

object - - the object to validate

Returns:

a list of error messages