/*
* 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.core.implementation.java;
import java.lang.reflect.Constructor;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import org.apache.tuscany.spi.ObjectFactory;
import org.apache.tuscany.spi.implementation.java.JavaMappedService;
import org.apache.tuscany.api.annotation.Monitor;
import org.apache.tuscany.spi.builder.BuilderConfigException;
import org.apache.tuscany.spi.component.AtomicComponent;
import org.apache.tuscany.spi.component.CompositeComponent;
import org.apache.tuscany.spi.deployer.DeploymentContext;
import org.apache.tuscany.spi.extension.ComponentBuilderExtension;
import org.apache.tuscany.spi.model.ComponentDefinition;
import org.apache.tuscany.spi.model.PropertyValue;
import org.apache.tuscany.spi.model.Scope;
import org.apache.tuscany.spi.implementation.java.ConstructorDefinition;
import org.apache.tuscany.spi.implementation.java.JavaMappedProperty;
import org.apache.tuscany.spi.implementation.java.JavaMappedReference;
import org.apache.tuscany.spi.implementation.java.PojoComponentType;
import org.apache.tuscany.core.implementation.PojoConfiguration;
import org.apache.tuscany.core.injection.MethodEventInvoker;
import org.apache.tuscany.core.injection.PojoObjectFactory;
/**
* Builds a Java-based atomic context from a component definition
*
* @version $$Rev: 452761 $$ $$Date: 2006-10-03 23:33:20 -0700 (Tue, 03 Oct 2006) $$
*/
public class JavaComponentBuilder extends ComponentBuilderExtension<JavaImplementation> {
private AsyncMonitor monitor;
@Monitor
public void setMonitor(AsyncMonitor monitor) {
this.monitor = monitor;
}
@SuppressWarnings("unchecked")
public AtomicComponent build(CompositeComponent parent,
ComponentDefinition<JavaImplementation> definition,
DeploymentContext deployment)
throws BuilderConfigException {
PojoComponentType<JavaMappedService, JavaMappedReference, JavaMappedProperty<?>> componentType =
definition.getImplementation().getComponentType();
PojoConfiguration configuration = new PojoConfiguration();
configuration.setParent(parent);
Scope scope = componentType.getImplementationScope();
if (Scope.MODULE == scope) {
configuration.setScopeContainer(deployment.getModuleScope());
} else {
configuration.setScopeContainer(scopeRegistry.getScopeContainer(scope));
}
if (definition.getInitLevel() != null) {
configuration.setInitLevel(definition.getInitLevel());
} else {
configuration.setInitLevel(componentType.getInitLevel());
}
Method initMethod = componentType.getInitMethod();
if (initMethod != null) {
configuration.setInitInvoker(new MethodEventInvoker(initMethod));
}
Method destroyMethod = componentType.getDestroyMethod();
if (destroyMethod != null) {
configuration.setDestroyInvoker(new MethodEventInvoker(destroyMethod));
}
configuration.setWireService(wireService);
configuration.setWorkContext(workContext);
configuration.setScheduler(workScheduler);
// setup property injection sites
for (JavaMappedProperty<?> property : componentType.getProperties().values()) {
configuration.addPropertySite(property.getName(), property.getMember());
}
// setup reference injection sites
for (JavaMappedReference reference : componentType.getReferences().values()) {
Member member = reference.getMember();
if (member != null) {
// could be null if the reference is mapped to a constructor
configuration.addReferenceSite(reference.getName(), member);
}
}
// setup constructor injection
ConstructorDefinition<?> ctorDef = componentType.getConstructorDefinition();
Constructor<?> constr = ctorDef.getConstructor();
PojoObjectFactory<?> instanceFactory = new PojoObjectFactory(constr);
configuration.setInstanceFactory(instanceFactory);
configuration.getConstructorParamNames().addAll(ctorDef.getInjectionNames());
JavaAtomicComponent component =
new JavaAtomicComponent(definition.getName(), configuration, monitor);
// handle properties
for (PropertyValue<?> property : definition.getPropertyValues().values()) {
ObjectFactory<?> factory = property.getValueFactory();
if (factory != null) {
component.addPropertyFactory(property.getName(), factory);
}
}
for (JavaMappedService service : componentType.getServices().values()) {
// setup callback injection sites
if (service.getCallbackReferenceName() != null) {
// Only if there is a callback reference in the service
configuration.addCallbackSite(service.getCallbackReferenceName(), service.getCallbackMember());
}
}
return component;
}
protected Class<JavaImplementation> getImplementationType() {
return JavaImplementation.class;
}
}