/**
* Returns Adapter Descriptor mapped class instance based on adapter descriptor name.
*
* @param adapterDescriptorName Name of Adapter Descriptor.
* @return Adapter Class Instance.
*/
public IAdapter getAdapterInstance(String adapterDescriptorName) {
AdapterDescriptor adapterDescriptor =
resourceManager.getAdapterDescriptor(adapterDescriptorName);
String mapTo = adapterDescriptor.getMapTo();
return (IAdapter) ClassUtils.createClassInstance(mapTo);
}
/**
* Returns Handler mapped method instance based on adapter name, handler name and its handler
* parameter types.
*
* @param adapterDescriptorName Name of Adapter.
* @param handlerName Name of Handler.
* @param handlerParameterTypes Type of Parameters.
* @return Handler Method Instance.
*/
public Method getHandlerInstance(
String adapterDescriptorName, String handlerName, Class<?>... handlerParameterTypes) {
AdapterDescriptor adapterDescriptor =
resourceManager.getAdapterDescriptor(adapterDescriptorName);
Handler handler = adapterDescriptor.getHandler(handlerName);
return ClassUtils.createMethodBasedOnClassName(
adapterDescriptor.getMapTo(), handler.getMapTo(), handlerParameterTypes);
}
private AdapterFactory() {
resourceManager.setAdapterFactory(adapterFactory);
}
/** It caches Adapter Instance and based on requirement server request. */
public class AdapterFactory {
private Map<String, IAdapter> adapters = new HashMap<String, IAdapter>();
private Map<String, Method> handlers = new HashMap<String, Method>();
private ResourceManager resourceManager = ResourceManager.getInstance();
private static AdapterFactory adapterFactory = null;
private AdapterFactory() {
resourceManager.setAdapterFactory(adapterFactory);
}
/**
* It provides an instance of AdapterResources class.
*
* @return AdapterResources instance.
*/
public static final AdapterFactory getInstance() {
if (adapterFactory == null) {
adapterFactory = new AdapterFactory();
}
return adapterFactory;
}
/**
* Returns Adapter Descriptor mapped class instance based on adapter descriptor name.
*
* @param adapterDescriptorName Name of Adapter Descriptor.
* @return Adapter Class Instance.
*/
public IAdapter getAdapterInstance(String adapterDescriptorName) {
AdapterDescriptor adapterDescriptor =
resourceManager.getAdapterDescriptor(adapterDescriptorName);
String mapTo = adapterDescriptor.getMapTo();
return (IAdapter) ClassUtils.createClassInstance(mapTo);
}
/**
* Returns Adapter mapped class instance based on adapter name. If adapter instance is not cache
* it will create new instance of that class.
*
* @param adapterName Name of Adapter.
* @return Adapter Class Instance.
*/
public IAdapter requireAdapterInstance(String adapterName) {
boolean contain = adapters.containsValue(adapterName);
if (contain) {
return adapters.get(adapterName);
}
IAdapter adapterObject = getAdapterInstance(adapterName);
adapters.put(adapterName, adapterObject);
return adapterObject;
}
/**
* Returns Handler mapped method instance based on adapter name, handler name and its handler
* parameter types.
*
* @param adapterDescriptorName Name of Adapter.
* @param handlerName Name of Handler.
* @param handlerParameterTypes Type of Parameters.
* @return Handler Method Instance.
*/
public Method getHandlerInstance(
String adapterDescriptorName, String handlerName, Class<?>... handlerParameterTypes) {
AdapterDescriptor adapterDescriptor =
resourceManager.getAdapterDescriptor(adapterDescriptorName);
Handler handler = adapterDescriptor.getHandler(handlerName);
return ClassUtils.createMethodBasedOnClassName(
adapterDescriptor.getMapTo(), handler.getMapTo(), handlerParameterTypes);
}
/**
* Returns Handler mapped method instance based on adapter name, handler name and its handler
* parameter types. If instance is not cached it will create new instance for handler.
*
* @param adapterDescriptorName Name of Adapter.
* @param handlerName Name of Handler.
* @param handlerParameterTypes Type of Parameters.
* @return
*/
public Method requireHandlerInstance(
String adapterDescriptorName, String handlerName, Class<?>... handlerParameterTypes) {
boolean contain = handlers.containsKey(handlerName);
if (contain) {
return handlers.get(handlerName);
}
Method handler = getHandlerInstance(adapterDescriptorName, handlerName, handlerParameterTypes);
handlers.put(handlerName, handler);
return handler;
}
}
