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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.core.context.impl;
import java.util.List;
import javax.security.auth.Subject;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.context.ThreadMessageContext;
import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
import org.apache.tuscany.sca.runtime.RuntimeComponentService;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
import org.oasisopen.sca.RequestContext;
import org.oasisopen.sca.ServiceReference;
/**
* @version $Rev$ $Date$
*/
public class RequestContextImpl implements RequestContext {
public RequestContextImpl(RuntimeComponent component) {
}
public Subject getSecuritySubject() {
Message msgContext = ThreadMessageContext.getMessageContext();
if (msgContext == null){
// message in thread context could be null if the user has
// spun up a new thread inside their component implementation
return null;
}
Subject subject = null;
for (Object header : msgContext.getHeaders().values()){
if (header instanceof Subject){
subject = (Subject)header;
break;
}
}
return subject;
}
public String getServiceName() {
Message msgContext = ThreadMessageContext.getMessageContext();
if (msgContext != null &&
msgContext.getTo() != null){
return msgContext.getTo().getService().getName();
} else {
// message in thread context could be null (or the default message where to == null)
// if the user has spun up a new thread inside their component implementation
return null;
}
}
public <B> ServiceReference<B> getServiceReference() {
Message msgContext = ThreadMessageContext.getMessageContext();
if (msgContext == null ||
msgContext.getTo() == null){
// message in thread context could be null (or the default message where to == null)
// if the user has spun up a new thread inside their component implementation
return null;
}
// FIXME: [rfeng] Is this the service reference matching the caller side?
RuntimeEndpoint to = (RuntimeEndpoint) msgContext.getTo();
RuntimeComponent component = (RuntimeComponent) to.getComponent();
ServiceReference<B> callableReference = component.getComponentContext().getServiceReference(null, to);
return callableReference;
}
public <CB> CB getCallback() {
ServiceReference<CB> cb = getCallbackReference();
if (cb == null) {
return null;
}
return cb.getService();
}
@SuppressWarnings("unchecked")
public <CB> ServiceReference<CB> getCallbackReference() {
Message msgContext = ThreadMessageContext.getMessageContext();
if (msgContext == null ||
msgContext.getTo() == null){
// message in thread context could be null (or the default message where to == null)
// if the user has spun up a new thread inside their component implementation
return null;
}
Endpoint to = msgContext.getTo();
RuntimeComponentService service = (RuntimeComponentService) to.getService();
RuntimeComponentReference callbackReference = (RuntimeComponentReference)service.getCallbackReference();
if (callbackReference == null) {
return null;
}
JavaInterface javaInterface = (JavaInterface) callbackReference.getInterfaceContract().getInterface();
Class<CB> javaClass = (Class<CB>)javaInterface.getJavaClass();
List<EndpointReference> wires = callbackReference.getEndpointReferences();
ServiceReferenceImpl ref = new CallbackServiceReferenceImpl(javaClass, wires);
return ref;
}
}
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