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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.context;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.apache.tuscany.container.js.rhino.RhinoScript;
import org.apache.tuscany.core.context.AbstractContext;
import org.apache.tuscany.core.context.CoreRuntimeException;
import org.apache.tuscany.core.context.LifecycleEventListener;
import org.apache.tuscany.core.context.QualifiedName;
import org.apache.tuscany.core.context.SimpleComponentContext;
import org.apache.tuscany.core.context.TargetException;
import org.apache.tuscany.core.invocation.spi.ProxyCreationException;
import org.apache.tuscany.core.invocation.spi.ProxyFactory;
public class JavaScriptComponentContext extends AbstractContext implements SimpleComponentContext {
private Map<String, Class> services;
private RhinoScript rhinoInvoker;
private Map<String, Object> properties;
private Map<String, ProxyFactory> sourceProxyFactories;
private Map<String, ProxyFactory> targetProxyFactories;
private Object instance;
public JavaScriptComponentContext(String name, Map<String, Class> services, Map<String, Object> properties,
Map<String, ProxyFactory> sourceProxyFactories, Map<String, ProxyFactory> targetProxyFactories, RhinoScript invoker) {
super(name);
assert (services != null) : "No service interface mapping specified";
assert (properties != null) : "No properties specified";
this.services = services;
this.properties = properties;
this.rhinoInvoker = invoker;
this.sourceProxyFactories = sourceProxyFactories;
this.targetProxyFactories = targetProxyFactories;
}
public Object getInstance(QualifiedName qName) throws TargetException {
return getInstance(qName, true);
}
public synchronized Object getInstance(QualifiedName qName, boolean notify) throws TargetException {
String portName=qName.getPortName();
ProxyFactory targetFactory;
if (portName!=null) {
targetFactory = targetProxyFactories.get(portName);
} else {
//FIXME The port name is null here, either locateService needs more information (the expected interface) to
// select the correct port, or we need to return a factory that matches the whole set of services exposed by
// the component.
targetFactory = targetProxyFactories.values().iterator().next();
}
if (targetFactory == null) {
TargetException e = new TargetException("Target service not found");
e.setIdentifier(qName.getPortName());
e.addContextName(getName());
throw e;
}
try {
Object proxy = targetFactory.createProxy(); //createProxy(new Class[] { iface });
notifyListeners(notify);
return proxy;
} catch (ProxyCreationException e) {
TargetException te = new TargetException("Error returning target", e);
e.setIdentifier(qName.getPortName());
e.addContextName(getName());
throw te;
}
}
public Object getImplementationInstance() throws TargetException {
return getImplementationInstance(true);
}
public Object getImplementationInstance(boolean notify) throws TargetException {
rhinoInvoker.updateScriptScope(properties); // create prop values
return rhinoInvoker;
}
// private Object createProxy(Class[] ifaces) throws ProxyCreationException {
// // final RhinoInvoker rhinoInvoker = implementation.getRhinoInvoker().copy();
// rhinoInvoker.updateScriptScope(properties); // create prop values
// final Map refs = createInvocationContext();
// InvocationHandler ih = new InvocationHandler() {
// public Object invoke(Object proxy, Method method, Object[] args) {
// return rhinoInvoker.invoke(method.getName(), args, method.getReturnType(), refs);
// // return rhinoInvoker.invoke(method.getName(), args, method.getReturnType(),createInvocationContext());
// }
// };
// return Proxy.newProxyInstance(ifaces[0].getClassLoader(), ifaces, ih);
// }
private void notifyListeners(boolean notify) {
if (notify) {
for (Iterator iter = contextListener.iterator(); iter.hasNext();) {
LifecycleEventListener listener = (LifecycleEventListener) iter.next();
listener.onInstanceCreate(this);
}
}
}
/**
* Creates a map containing any properties and their values
*/
// private Map createPropertyValues() {
// Map<String,Object> context = new HashMap<String,Object>();
// List<ConfiguredProperty> configuredProperties = component.getConfiguredProperties();
// if (configuredProperties != null) {
// for (ConfiguredProperty property : configuredProperties) {
// context.put(property.getProperty().getName(), property.getValue());
// }
// }
// return context;
// }
/**
* Creates a map containing any ServiceReferences
*/
private Map createInvocationContext() throws ProxyCreationException {
Map<String, Object> context = new HashMap<String, Object>();
for (Map.Entry<String, ProxyFactory> entry : sourceProxyFactories.entrySet()) {
context.put(entry.getKey(), entry.getValue().createProxy());
}
return context;
}
public boolean isEagerInit() {
return false;
}
public boolean isDestroyable() {
return false;
}
public void start() throws CoreRuntimeException {
}
public void stop() throws CoreRuntimeException {
}
}
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