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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.implementation.java.context;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.logging.Logger;
import org.apache.tuscany.sca.core.factory.InstanceWrapper;
import org.apache.tuscany.sca.core.factory.ObjectCreationException;
import org.apache.tuscany.sca.core.factory.ObjectFactory;
import org.apache.tuscany.sca.databinding.impl.XSDDataTypeConverter;
import org.apache.tuscany.sca.implementation.java.injection.Injector;
import org.apache.tuscany.sca.implementation.java.invocation.EventInvoker;
/**
* @version $Rev$ $Date$
*/
public class ReflectiveInstanceFactory<T> implements InstanceFactory<T> {
private static final Logger logger = Logger.getLogger(ReflectiveInstanceFactory.class.getName(),
"org.apache.tuscany.sca.implementation.java.runtime.implementation-java-runtime-validation-messages");
private final Constructor<T> ctr;
private final ObjectFactory<?>[] ctrArgs;
private final Injector<T>[] injectors;
private final EventInvoker<T> initInvoker;
private final EventInvoker<T> destroyInvoker;
private final Injector<T>[] callbackInjectors;
public ReflectiveInstanceFactory(Constructor<T> ctr,
ObjectFactory<?>[] ctrArgs,
Injector<T>[] injectors,
Injector<T>[] callbackInjectors,
EventInvoker<T> initInvoker,
EventInvoker<T> destroyInvoker) {
this.ctr = ctr;
this.ctrArgs = ctrArgs;
this.injectors = injectors;
this.callbackInjectors = callbackInjectors;
this.initInvoker = initInvoker;
this.destroyInvoker = destroyInvoker;
}
public InstanceWrapper<T> newInstance() {
T instance;
try {
if (ctrArgs != null) {
Object[] args = new Object[ctrArgs.length];
for (int i = 0; i < args.length; i++) {
args[i] = ctrArgs[i].getInstance();
}
instance = ctr.newInstance(args);
} else {
instance = ctr.newInstance();
}
} catch (InstantiationException e) {
String name = ctr.getDeclaringClass().getName();
String message = logger.getResourceBundle().getString("ClassNoInstantiable");
message = message.replace("{0}", name);
throw new AssertionError(message);
} catch (IllegalAccessException e) {
String name = ctr.getName();
String message = logger.getResourceBundle().getString("ConstructorNotAccessible");
message = message.replace("{0}", name);
throw new AssertionError(message);
} catch (InvocationTargetException e) {
String name = ctr.getName();
String message = logger.getResourceBundle().getString("ConstructorException");
message = message.replace("{0}", name);
throw new ObjectCreationException(message, e);
}
if (injectors != null) {
for (Injector<T> injector : injectors) {
//FIXME Injectors should never be null
if (injector != null)
try {
injector.inject(instance);
} catch (Exception e) {
if (destroyInvoker != null) {
destroyInvoker.invokeEvent(instance);
}
String message = logger.getResourceBundle().getString("InjectorException");
message = message.replace("{0}", e.getMessage());
throw new ObjectCreationException(message, e);
}
}
}
return new ReflectiveInstanceWrapper<T>(instance, initInvoker, destroyInvoker, callbackInjectors);
}
}
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