diff options
Diffstat (limited to 'sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceProxy.cpp')
| -rw-r--r-- | sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceProxy.cpp | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceProxy.cpp b/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceProxy.cpp new file mode 100644 index 0000000000..56511fc9e6 --- /dev/null +++ b/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceProxy.cpp @@ -0,0 +1,193 @@ +/* + * 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. + */ + +/* $Rev$ $Date$ */ + +#include "tuscany/sca/cpp/CPPServiceProxy.h" +#include "tuscany/sca/util/Logging.h" +#include "osoa/sca/ServiceRuntimeException.h" +#include "tuscany/sca/core/SCARuntime.h" +#include "tuscany/sca/model/Reference.h" +#include "tuscany/sca/model/ReferenceType.h" +#include "tuscany/sca/model/Service.h" +#include "tuscany/sca/model/ServiceType.h" +#include "tuscany/sca/model/Component.h" +#include "tuscany/sca/model/ComponentType.h" +#include "tuscany/sca/core/ServiceWrapper.h" +#include "tuscany/sca/model/Composite.h" +#include "tuscany/sca/model/ServiceBinding.h" +#include "tuscany/sca/cpp/model/CPPImplementation.h" +#include "tuscany/sca/cpp/model/CPPReferenceBinding.h" + +using namespace osoa::sca; + +namespace tuscany +{ + namespace sca + { + namespace cpp + { + + // ============================ + // Constructor: Create a proxy + // ============================ + CPPServiceProxy::CPPServiceProxy(Reference* reference) + : ServiceProxy(reference) + { + LOGENTRY(1,"CPPServiceProxy::constructor"); + + // ---------------------- + // Get the component + // ---------------------- + Component* component = reference->getComponent(); + string name = reference->getType()->getName(); + + // Get the service wrapper + CPPReferenceBinding* referenceBinding = (CPPReferenceBinding*)reference->getBinding(); + + ServiceWrapper* serviceWrapper = referenceBinding->getTargetServiceBinding()->getServiceWrapper(); + + createProxy(component, name, serviceWrapper); + + LOGEXIT(1,"CPPServiceProxy::constructor"); + } + + // ============================ + // Constructor: Create a proxy + // ============================ + CPPServiceProxy::CPPServiceProxy(Service* service) + : ServiceProxy(0) + { + LOGENTRY(1,"CPPServiceProxy::constructor"); + + // ---------------------- + // Get the component + // ---------------------- + Component* component = service->getComponent(); + string name = service->getType()->getName(); + + // Get the service wrapper + ServiceWrapper* serviceWrapper = service->getBinding()->getServiceWrapper(); + + createProxy(component, name, serviceWrapper); + + LOGEXIT(1,"CPPServiceProxy::constructor"); + } + + void CPPServiceProxy::createProxy(Component* component, const string& name, ServiceWrapper* serviceWrapper) + { + LOGENTRY(1,"CPPServiceProxy::createProxy"); + + ComponentType* componentType = component->getType(); + if (!componentType) + { + string msg = "Component " + component->getName() + " has no implementation defined"; + throw ServiceNotFoundException(msg.c_str()); + } + + // If we got here we have a CPP implementation + CPPImplementation* impl = (CPPImplementation *)componentType; + + // ---------------------------------------------------- + // Get implementation dll name and service factory name + // ---------------------------------------------------- + string library = impl->getLibrary(); + string headerStub = impl->getHeaderStub(); + + string fullLibraryName = component->getComposite()->getRoot() + "/" + library; + string proxyFactoryName = headerStub + "_" + name + "_Proxy_Factory"; + string proxyDestructorName = headerStub + "_" + name + "_Proxy_Destructor"; + typedef void* (* PROXYFACTORY) (ServiceWrapper*); + + // ------------ + // Load the dll + // ------------ + proxyLibrary = Library(fullLibraryName); + + // ------------------------- + // Locate the factory method + // ------------------------- + PROXYFACTORY proxyFactory = (PROXYFACTORY)proxyLibrary.getSymbol(proxyFactoryName); + if (!proxyFactory) + { + LOGERROR_2(1, "CPPServiceProxy::createProxy: Unable to locate %s in library %s", + proxyFactoryName.c_str(), fullLibraryName.c_str()); + string msg = "Unable to locate " + proxyFactoryName + " in library " + fullLibraryName; + throw ServiceNotFoundException(msg.c_str()); + } + + // ----------------------------------- + // Now create an instance of the proxy + // ----------------------------------- + void* proxy = proxyFactory(serviceWrapper); + if (!proxy) + { + LOGERROR_2(1, "CPPServiceProxy::createProxy: Factory method %s in library %s returned null", + proxyFactoryName.c_str(), fullLibraryName.c_str()); + string msg = "Factory method " + proxyFactoryName + " in library " + fullLibraryName + " returned null"; + throw ServiceNotFoundException(msg.c_str()); + } + else + { + proxies.push_back(proxy); + } + + // ------------------------- + // Get the destructor method + // ------------------------- + destructor = (PROXYDESTRUCTOR)proxyLibrary.getSymbol(proxyDestructorName); + + LOGEXIT(1,"CPPServiceProxy::createProxy"); + } + + // ========== + // Destructor + // ========== + CPPServiceProxy::~CPPServiceProxy() + { + LOGENTRY(1,"CPPServiceProxy::destructor"); + + // Delete the proxies + if (destructor != NULL && proxies.size() != 0) + { + destructor(*proxies.begin()); + } + LOGEXIT(1,"CPPServiceProxy::destructor"); + } + + CPPServiceProxy::PROXIES CPPServiceProxy::getProxies() + { + return proxies; + } + + void* CPPServiceProxy::getProxy() + { + if (proxies.size() != 0) + { + return *proxies.begin(); + } + else + { + return NULL; + } + } + + } // End namespace cpp + } // End namespace sca +} // End namespace tuscany |