Package com.priint.pubserver.parameterparser

Class ReflectionAPIUtils

java.lang.Object

com.priint.pubserver.parameterparser.ReflectionAPIUtils

public class ReflectionAPIUtils
extends java.lang.Object

Utility class for easier working with Java Reflection API.

Constructor Summary

Constructors

Constructor	Description
ReflectionAPIUtils()

Method Summary

Modifier and Type	Method	Description
static java.lang.Object	callBeanMethod(java.lang.String globalName, java.lang.String methodName, java.lang.Object[] params, java.lang.Object bean)	Calls a method of a EJB with given arguments
static java.lang.Object	callBeanMethod(java.lang.String globalName, java.lang.String methodName, java.lang.Object[] params, java.lang.Object bean, boolean throwException)	Calls a method of a EJB with given arguments
static java.lang.Object	callPluginMethod(java.lang.String mappedName, java.lang.String methodName, java.lang.Object[] params)	Calls a method of a plug-in with given arguments
static java.lang.Object	callPluginMethodUnchecked(java.lang.String mappedName, java.lang.String methodName, java.lang.Object[] params)	Calls a method of a plug-in with given arguments
static java.lang.Object	callPluginMethodWithException(java.lang.String mappedName, java.lang.String methodName, java.lang.Object[] params, boolean throwException)	Calls a method of a plug-in with given arguments
static java.lang.Object	callStaticMethod(java.lang.String className, java.lang.String methodName, java.lang.Object[] params)	Calls a static method in a class with given arguments
static java.lang.Object	callStaticMethodUnchecked(java.lang.String className, java.lang.String methodName, java.lang.Object[] params)	Calls a static method in a class with given arguments
static java.lang.Object	castType(java.lang.Object obj, java.lang.Class<?> type)	Called before method invocation on each method argument
static boolean	usesInterface(java.lang.Class<?> clazz, java.lang.Class<?> interfaceClass)	Checks if a class implements an interface
static boolean	usesInterface(java.lang.Class<?> clazz, java.lang.String interfaceClassName)	Checks if a class implements an interface

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionAPIUtils

public ReflectionAPIUtils()

Method Detail

usesInterface

public static boolean usesInterface(java.lang.Class<?> clazz,
                                    java.lang.Class<?> interfaceClass)

Checks if a class implements an interface

Parameters:

clazz - class to check

interfaceClass - interface class

Returns:

true if the class implements the interface

usesInterface

public static boolean usesInterface(java.lang.Class<?> clazz,
                                    java.lang.String interfaceClassName)

Checks if a class implements an interface

Parameters:

clazz - class to check

interfaceClassName - full qualified class name of the interface

Returns:

true if the class implements the interface

callStaticMethod

public static java.lang.Object callStaticMethod(java.lang.String className,
                                                java.lang.String methodName,
                                                java.lang.Object[] params)

Calls a static method in a class with given arguments

Exceptions will be swallowed and only create an entry in the log.

Parameters:

className - full name of the class

methodName - name of the method

params - arguments

Returns:

result of the method call or null in case of an exception.

callStaticMethodUnchecked

public static java.lang.Object callStaticMethodUnchecked(java.lang.String className,
                                                         java.lang.String methodName,
                                                         java.lang.Object[] params)
                                                  throws java.lang.Exception

Calls a static method in a class with given arguments

Exceptions will be passed through as is.

Parameters:

className - full name of the class

methodName - name of the method

params - arguments

Returns:

result of the method call

Throws:

java.lang.Exception - thrown if either class and method are not valid or the call fails

callPluginMethod

public static java.lang.Object callPluginMethod(java.lang.String mappedName,
                                                java.lang.String methodName,
                                                java.lang.Object[] params)

Calls a method of a plug-in with given arguments

Exceptions will be swallowed and only create an entry in the log if in debug mode.

Parameters:

mappedName - JNDI name of the plug-in

methodName - name of the method

params - arguments

Returns:

result of the method call or null in case of an exception.

callPluginMethodUnchecked

public static java.lang.Object callPluginMethodUnchecked(java.lang.String mappedName,
                                                         java.lang.String methodName,
                                                         java.lang.Object[] params)
                                                  throws ParameterInterpreterException

Calls a method of a plug-in with given arguments

All exceptions will be wrapped into a ParameterInterpreterException.

Parameters:

mappedName - JNDI name of the plug-in

methodName - name of the method

params - arguments

Returns:

result of the method call

Throws:

ParameterInterpreterException - is thrown if either plugin is not available or method are not valid or the call fails

callPluginMethodWithException

public static java.lang.Object callPluginMethodWithException(java.lang.String mappedName,
                                                             java.lang.String methodName,
                                                             java.lang.Object[] params,
                                                             boolean throwException)
                                                      throws ParameterInterpreterException

Calls a method of a plug-in with given arguments

Parameters:

mappedName - JNDI name of the plug-in

methodName - name of the method

params - arguments

throwException -

Returns:

result of the method call

Throws:

ParameterInterpreterException - is thrown if either plugin is not available or method are not valid or the call fails

callBeanMethod

public static java.lang.Object callBeanMethod(java.lang.String globalName,
                                              java.lang.String methodName,
                                              java.lang.Object[] params,
                                              java.lang.Object bean,
                                              boolean throwException)
                                       throws ParameterInterpreterException

Calls a method of a EJB with given arguments

Exceptions will be swallowed and only create an entry in the log.

Parameters:

globalName -

methodName -

params -

bean -

Throws:

ParameterInterpreterException

callBeanMethod

public static java.lang.Object callBeanMethod(java.lang.String globalName,
                                              java.lang.String methodName,
                                              java.lang.Object[] params,
                                              java.lang.Object bean)
                                       throws ParameterInterpreterException

Calls a method of a EJB with given arguments

Parameters:

globalName -

methodName -

params -

bean -

Returns:

Throws:

ParameterInterpreterException

castType

public static java.lang.Object castType(java.lang.Object obj,
                                        java.lang.Class<?> type)

Called before method invocation on each method argument

In case of cast problems an error string will be returned as argument content.

Parameters:

obj -

type -

Returns: