ch.ralscha.extdirectspring.util
Class ExtDirectSpringUtil

java.lang.Object
  ch.ralscha.extdirectspring.util.ExtDirectSpringUtil

public class ExtDirectSpringUtil
extends Object

Utility class

Author:

mansari, Ralph Schaer

Method Summary

static <T> T	deserializeJsonToObject(String json, Class<T> clazz) Creates a object from a json String.
static <T> T	deserializeJsonToObject(String json, org.codehaus.jackson.type.TypeReference<T> typeReference) Creates a object from a json String.
static boolean	equal(Object a, Object b) Checks if two objects are equal.
static MethodInfo	findMethodInfo(org.springframework.context.ApplicationContext context, String beanName, String methodName) Retrieves a methodInfo from a method in a spring managed bean.
static Method	findMethodWithAnnotation(Method method, Class<? extends Annotation> annotation) Find a method that is annotated with a specific annotation.
static Object	invoke(org.springframework.context.ApplicationContext context, String beanName, MethodInfo methodInfo, Object[] params) Invokes a method on a Spring managed bean.
static String	serializeObjectToJson(Object obj) Converts a object into a String containing the json representation of this object.
static String	serializeObjectToJson(Object obj, boolean indent) Converts a object into a String containing the json representation of this object.

Methods inherited from class java.lang.Object

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

Method Detail

equal

public static boolean equal(Object a,
                            Object b)

Checks if two objects are equal. Returns true if both objects are null

Parameters:

a - object one

b - object two

Returns:

true if objects are equal

findMethodInfo

public static MethodInfo findMethodInfo(org.springframework.context.ApplicationContext context,
                                        String beanName,
                                        String methodName)

Retrieves a methodInfo from a method in a spring managed bean. The found method will be cached in MethodInfoCache with the key beanName,methodName

Parameters:

context - Spring application context

beanName - name of the bean to find the method in

methodName - name of the method to retrieve

Returns:

the method

Throws:

IllegalArgumentException - if the method is not annotated with a ExtDirectSpring annotation or there is no method in the bean

findMethodWithAnnotation

public static Method findMethodWithAnnotation(Method method,
                                              Class<? extends Annotation> annotation)

Find a method that is annotated with a specific annotation. Starts with the method and goes up to the superclasses of the class.

Parameters:

method - the starting method

annotation - the annotation to look for

Returns:

the method if there is a annotated method, else null

invoke

public static Object invoke(org.springframework.context.ApplicationContext context,
                            String beanName,
                            MethodInfo methodInfo,
                            Object[] params)
                     throws IllegalArgumentException,
                            IllegalAccessException,
                            InvocationTargetException

Invokes a method on a Spring managed bean.

Parameters:

context - a Spring application context

beanName - the name of the bean

methodInfo - the methodInfo object

params - the parameters

Returns:

the result of the method invokation

Throws:

IllegalArgumentException - if there is no bean in the context

IllegalAccessException

InvocationTargetException

serializeObjectToJson

public static String serializeObjectToJson(Object obj)

Converts a object into a String containing the json representation of this object. In case of an exception returns null and logs the exception.

Parameters:

obj - the object to serialize into json

Returns:

obj in json format

serializeObjectToJson

public static String serializeObjectToJson(Object obj,
                                           boolean indent)

Converts a object into a String containing the json representation of this object. In case of an exceptions returns null and logs the exception.

Parameters:

obj - the object to serialize into json

indent - if false writes json on one line

Returns:

obj in json format, null if there is an exception

deserializeJsonToObject

public static <T> T deserializeJsonToObject(String json,
                                            org.codehaus.jackson.type.TypeReference<T> typeReference)

Creates a object from a json String. In case of an exception returns null and logs the exception.

Type Parameters:

T - type of the object to create

Parameters:

json - String with the json

typeReference - TypeReference instance of the desired result type TypeReference

Returns:

the created object, null if there is an exception

deserializeJsonToObject

public static <T> T deserializeJsonToObject(String json,
                                            Class<T> clazz)

Creates a object from a json String. In case of an exception returns null and logs the exception.

Type Parameters:

T - type of the object to create

Parameters:

json - String with the json

clazz - Class of object to create

Returns:

the created object, null if there is an exception