Does anyone have time to look into this? Massimo wrote to the
Tapestry group saying that he has come up with a way to expose
HiveMind services to Tapestry5 IoC. I don't know if this belongs as a
HiveMind subproject or a Tapestry one, but it's cool that there are
some folks out there who like HiveMind enough to make sure you can use
it with the new Tapestry container. :-)
On 2/8/07, Massimo Lusetti <[EMAIL PROTECTED]> wrote:
I'll write codes inline.
As said this is rally all the needed code to be able to inject
HiveMind services in a Tapestry5 page/component/service, just add this
code to your module builder class and use the 'hivemind' prefix for
reaching your HiveMind services, it will just works.
@Contribute("tapestry.ioc.MasterObjectProvider")
public static void contributeHiveMindToMasterObjectProvider(
MappedConfiguration<String, ObjectProvider> configuration,
@InjectService("HiveMind")
ObjectProvider hivemind)
{
configuration.add("hivemind", hivemind);
}
public static ObjectProvider buildHiveMind(Log log)
{
return new HiveMindObjectProvider(log);
}
This is the HiveMindObjectProvider:
/**
* This is Copyright Massimo Lusetti [EMAIL PROTECTED]
* released under the BSD License.
*/
package it.datacode.t5app.services;
import org.apache.commons.logging.Log;
import org.apache.hivemind.ApplicationRuntimeException;
import org.apache.hivemind.Registry;
import org.apache.hivemind.impl.RegistryBuilder;
import org.apache.tapestry.ioc.ObjectProvider;
import org.apache.tapestry.ioc.ServiceLocator;
/**
* This is the HiveMind ObjectProvider which will bring HiveMind
* services to your Tapestry5 pages/components/services.
*
* @author Massimo Lusetti <[EMAIL PROTECTED]>
*
*/
public class HiveMindObjectProvider implements ObjectProvider
{
private final Log _log;
private Registry _registry;
public HiveMindObjectProvider(Log log)
{
_log = log;
// initialise();
}
/* (non-Javadoc)
* @see org.apache.tapestry.ioc.ObjectProvider#provide(java.lang.String,
java.lang.Class, org.apache.tapestry.ioc.ServiceLocator)
*/
public <T> T provide(String expression, Class<T> objectType,
ServiceLocator locator)
{
initialise();
if (_registry == null)
throw new RuntimeException("HiveMind Registry not configured");
try
{
Object service = _registry.getService(expression, objectType);
// NOTE: ClassCastException should be trapped by HiveMind
registry method
return objectType.cast(service);
}
catch (ApplicationRuntimeException are)
{
String msg = "Impossibile to locate the service " +
expression + " of type " +
objectType.getCanonicalName() +
" from HiveMind registry";
_log.error(msg, are);
throw new RuntimeException(msg, are);
}
}
void initialise()
{
if (_registry == null)
{
_log.debug("Initializing HiveMind registry with default builder");
_registry = RegistryBuilder.constructDefaultRegistry();
}
}
}
If you're still interested I'll pack up in a maven2 module to produce
a jar acceptable by Tapestry5 IoC as a drop in module. I'm willing to
maintain it.
Let me know what you think.
--
Massimo
http://meridio.blogspot.com
