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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed 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.container.js.builder;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.tuscany.container.js.assembly.JavaScriptImplementation;
import org.apache.tuscany.container.js.assembly.impl.JavaScriptImplementationImpl;
import org.apache.tuscany.container.js.config.JavaScriptComponentRuntimeConfiguration;
import org.apache.tuscany.container.js.rhino.RhinoScript;
import org.apache.tuscany.core.builder.BuilderConfigException;
import org.apache.tuscany.core.builder.BuilderException;
import org.apache.tuscany.core.builder.RuntimeConfigurationBuilder;
import org.apache.tuscany.core.context.AggregateContext;
import org.apache.tuscany.core.context.QualifiedName;
import org.apache.tuscany.core.invocation.InvocationConfiguration;
import org.apache.tuscany.core.invocation.MethodHashMap;
import org.apache.tuscany.core.invocation.ProxyConfiguration;
import org.apache.tuscany.core.invocation.impl.InvokerInterceptor;
import org.apache.tuscany.core.invocation.spi.ProxyFactory;
import org.apache.tuscany.core.invocation.spi.ProxyFactoryFactory;
import org.apache.tuscany.core.message.MessageFactory;
import org.apache.tuscany.core.runtime.RuntimeContext;
import org.apache.tuscany.core.system.annotation.Autowire;
import org.apache.tuscany.model.assembly.AssemblyModelObject;
import org.apache.tuscany.model.assembly.ComponentImplementation;
import org.apache.tuscany.model.assembly.ConfiguredReference;
import org.apache.tuscany.model.assembly.ConfiguredService;
import org.apache.tuscany.model.assembly.ModelInitException;
import org.apache.tuscany.model.assembly.Scope;
import org.apache.tuscany.model.assembly.Service;
import org.apache.tuscany.model.assembly.ServiceContract;
import org.apache.tuscany.model.assembly.SimpleComponent;
import org.osoa.sca.annotations.Init;
/**
* Builds {@link org.apache.tuscany.container.js.config.JavaScriptComponentRuntimeConfiguration}s from a JavaScript
* component type
*
* @version $Rev$ $Date$
*/
@org.osoa.sca.annotations.Scope("MODULE")
public class JavaScriptComponentContextBuilder implements RuntimeConfigurationBuilder<AggregateContext> {
private ProxyFactoryFactory factory;
private MessageFactory msgFactory;
private RuntimeConfigurationBuilder referenceBuilder;
private RuntimeContext runtimeContext;
// ----------------------------------
// Constructors
// ----------------------------------
public JavaScriptComponentContextBuilder() {
}
// ----------------------------------
// Methods
// ----------------------------------
@Init(eager = true)
public void init() {
runtimeContext.addBuilder(this);
}
/**
* @param runtimeContext The runtimeContext to set.
*/
@Autowire
public void setRuntimeContext(RuntimeContext runtimeContext) {
this.runtimeContext = runtimeContext;
}
/**
* Sets the factory used to construct proxies implmementing the business interface required by a reference
*/
@Autowire
public void setProxyFactoryFactory(ProxyFactoryFactory factory) {
this.factory = factory;
}
/**
* Sets the factory used to construct invocation messages
*/
@Autowire
public void setMessageFactory(MessageFactory msgFactory) {
this.msgFactory = msgFactory;
}
/**
* Sets a builder responsible for creating source-side and target-side invocation chains for a reference. The
* reference builder may be hierarchical, containing other child reference builders that operate on specific
* metadata used to construct and invocation chain.
*
* @see org.apache.tuscany.core.builder.impl.HierarchicalBuilder
*/
public void setReferenceBuilder(RuntimeConfigurationBuilder builder) {
this.referenceBuilder = builder;
}
public void build(AssemblyModelObject modelObject, AggregateContext context) throws BuilderException {
if (modelObject instanceof SimpleComponent) {
SimpleComponent component = (SimpleComponent) modelObject;
ComponentImplementation impl = component.getComponentImplementation();
if (impl instanceof JavaScriptImplementation) {
Scope scope = ((JavaScriptImplementation) impl).getComponentType().getServices().get(0).getServiceContract()
.getScope();
Map<String, Class> services = new HashMap();
for (Service service : ((JavaScriptImplementation) impl).getComponentType().getServices()) {
services.put(service.getName(), service.getServiceContract().getInterface());
}
Map<String, Object> properties = new HashMap();
// TODO support properties
String script = null;
if (impl instanceof JavaScriptImplementationImpl) { // fixme
try {
script = ((JavaScriptImplementationImpl) impl).getScript();
} catch (ModelInitException e) {
throw new BuilderConfigException(e);
}
}
RhinoScript invoker = createRhinoInvoker(component.getName(), script, properties);
JavaScriptComponentRuntimeConfiguration config = new JavaScriptComponentRuntimeConfiguration(component.getName(),
scope, services, properties, invoker);
// create target-side invocation chains for each service offered by the implementation
for (ConfiguredService configuredService : component.getConfiguredServices()) {
Service service = configuredService.getService();
ServiceContract contract = service.getServiceContract();
Map<Method, InvocationConfiguration> iConfigMap = new MethodHashMap();
ProxyFactory proxyFactory = factory.createProxyFactory();
for (Method method : contract.getInterface().getMethods()) {
InvocationConfiguration iConfig = new InvocationConfiguration(method);
iConfigMap.put(method, iConfig);
}
QualifiedName qName = new QualifiedName(component.getName() + QualifiedName.NAME_SEPARATOR + service.getName());
ProxyConfiguration pConfiguration = new ProxyConfiguration(qName, iConfigMap, contract.getInterface().getClassLoader(), msgFactory);
proxyFactory.setBusinessInterface(contract.getInterface());
proxyFactory.setProxyConfiguration(pConfiguration);
configuredService.setProxyFactory(proxyFactory);
if (referenceBuilder != null) {
// invoke the reference builder to handle target-side metadata
referenceBuilder.build(configuredService, context);
}
// add tail interceptor
for (InvocationConfiguration iConfig : (Collection<InvocationConfiguration>) iConfigMap.values()) {
iConfig.addTargetInterceptor(new InvokerInterceptor());
}
config.addTargetProxyFactory(service.getName(), proxyFactory);
}
// handle references
List<ConfiguredReference> configuredReferences = component.getConfiguredReferences();
if (configuredReferences != null) {
for (ConfiguredReference reference : configuredReferences) {
ProxyFactory proxyFactory = factory.createProxyFactory();
ServiceContract interfaze = reference.getReference().getServiceContract();
Map<Method, InvocationConfiguration> iConfigMap = new MethodHashMap();
for (Method method : interfaze.getInterface().getMethods()) {
InvocationConfiguration iConfig = new InvocationConfiguration(method);
iConfigMap.put(method, iConfig);
}
String targetCompName = reference.getTargetConfiguredServices().get(0).getAggregatePart().getName();
String targetSerivceName = reference.getTargetConfiguredServices().get(0).getService().getName();
QualifiedName qName = new QualifiedName(targetCompName + "/" + targetSerivceName);
// QualifiedName qName = new QualifiedName(reference.getPart().getName() + "/"
// + reference.getPort().getName());
ProxyConfiguration pConfiguration = new ProxyConfiguration(qName, iConfigMap, interfaze.getInterface().getClassLoader(), msgFactory);
proxyFactory.setBusinessInterface(interfaze.getInterface());
proxyFactory.setProxyConfiguration(pConfiguration);
reference.setProxyFactory(proxyFactory);
if (referenceBuilder != null) {
// invoke the reference builder to handle metadata associated with the reference
referenceBuilder.build(reference, context);
}
config.addSourceProxyFactory(reference.getReference().getName(), proxyFactory);
}
}
component.getComponentImplementation().setRuntimeConfiguration(config);
}
}
}
/**
* Creates a representation of the JavaScript implementation script that is used to perform invocations
*
* @param name
* @param script the Script source
* @param properties configured properties for the component
* @return
*/
private RhinoScript createRhinoInvoker(String name, String script, Map properties) {
RhinoScript ri = new RhinoScript(name, script, properties);
return ri;
}
}
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