diff options
Diffstat (limited to 'sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceWrapper.cpp')
| -rw-r--r-- | sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceWrapper.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceWrapper.cpp b/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceWrapper.cpp new file mode 100644 index 0000000000..3d7df2d44d --- /dev/null +++ b/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/cpp/src/tuscany/sca/cpp/CPPServiceWrapper.cpp @@ -0,0 +1,198 @@ +/* + * 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/CPPServiceWrapper.h" + +#include "osoa/sca/ServiceRuntimeException.h" +#include "tuscany/sca/util/Logging.h" +#include "tuscany/sca/util/Utils.h" +#include "tuscany/sca/util/Library.h" +#include "tuscany/sca/model/Component.h" +#include "tuscany/sca/model/Composite.h" +#include "tuscany/sca/model/Service.h" +#include "tuscany/sca/model/ServiceType.h" +#include "tuscany/sca/core/SCARuntime.h" +#include "tuscany/sca/cpp/model/CPPImplementation.h" +#include "tuscany/sca/model/Interface.h" + +using namespace osoa::sca; + + +namespace tuscany +{ + namespace sca + { + namespace cpp + { + + // =================== + // Static data members + // =================== + void* CPPServiceWrapper::staticImpl = 0; + + // =========== + // Constructor + // =========== + CPPServiceWrapper::CPPServiceWrapper(Service* service) + : ServiceWrapper(service) + { + LOGENTRY(1,"CPPServiceWrapper::constructor"); + + component = service->getComponent(); + interf = service->getType()->getInterface(); + implementation = (CPPImplementation*)component->getType(); + + LOGEXIT(1,"CPPServiceWrapper::constructor"); + + } + + // ========== + // Destructor + // ========== + CPPServiceWrapper::~CPPServiceWrapper() + { + LOGENTRY(1,"CPPServiceWrapper::destructor"); + LOGEXIT(1,"CPPServiceWrapper::destructor"); + } + + + // ====================================================================== + // getImplementation: get an implementation for this scope + // ====================================================================== + void* CPPServiceWrapper::getImplementation() + { + if (implementation->getScope() == CPPImplementation::COMPOSITE) + { + if (!staticImpl) + { + staticImpl = newImplementation(); + } + return staticImpl; + } + else // (scope == CPPInterface::STATELESS) + { + return newImplementation(); + } + } + + // ====================================================================== + // releaseImplementation: release the implementation for this scope + // ====================================================================== + void CPPServiceWrapper::releaseImplementation() + { + if (implementation->getScope() == CPPImplementation::STATELESS) + { + deleteImplementation(); + } + } + + // ====================================================================== + // invoke: wrapper call to service with setting the component context + // ====================================================================== + void CPPServiceWrapper::invoke(Operation& operation) + { + LOGENTRY(1,"CPPServiceWrapper::invoke"); + + SCARuntime* runtime = SCARuntime::getInstance(); + runtime->setCurrentComponent(component); + + try + { + invokeService(operation); + } + catch (...) + { + runtime->unsetCurrentComponent(); + throw; + } + runtime->unsetCurrentComponent(); + LOGEXIT(1,"CPPServiceWrapper::invoke"); + + } + + void CPPServiceWrapper::setLibrary(Library* lib) + { + wrapperLibrary = lib; + } + + // ====================================================================== + // getServiceWrapper: create a wrapper for the target ComponentService + // ====================================================================== + CPPServiceWrapper* CPPServiceWrapper::getServiceWrapper(Service* service) + { + CPPServiceWrapper* serviceWrapper = 0; + + // ----------------------------------------------- + // Get the implementation for the target component + // ----------------------------------------------- + Component* component = service->getComponent(); + CPPImplementation* impl = (CPPImplementation*)component->getType(); + if (!impl) + { + string msg = "Component " + component->getName() + " has no implementation defined"; + throw ServiceNotFoundException(msg.c_str()); + } + + // ---------------------------------------------------- + // Get implementation dll name and wrapper factory name + // ---------------------------------------------------- + string libraryName = impl->getLibrary(); + string wrapperFactoryName = impl->getHeaderStub() + + "_" + service->getType()->getName() + "_Wrapper_Factory"; + + // ------------ + // Load the dll + // ------------ + string fullLibraryName = component->getComposite()->getRoot() + "/" + libraryName; + typedef CPPServiceWrapper* (* WRAPPERFACTORY) (Service*); + Library* wrapperLib = new Library(fullLibraryName); + + // ------------------------- + // Locate the factory method + // ------------------------- + WRAPPERFACTORY wrapperFactory = (WRAPPERFACTORY)wrapperLib->getSymbol(wrapperFactoryName); + if (!wrapperFactory) + { + LOGERROR_2(1, "CPPServiceWrapper::getServiceWrapper: Unable to locate %s in library %s", + wrapperFactoryName.c_str(), fullLibraryName.c_str()); + string msg = "Unable to locate " + wrapperFactoryName + " in library " + fullLibraryName; + throw ServiceNotFoundException(msg.c_str()); + } + + // ------------------------------------- + // Now create an instance of the wrapper + // ------------------------------------- + serviceWrapper = wrapperFactory(service); + if (!serviceWrapper) + { + LOGERROR_2(1, "CPPServiceWrapper::getServiceWrapper: Factory method %s in library %s returned null", + wrapperFactoryName.c_str(), fullLibraryName.c_str()); + string msg = "Factory method " + wrapperFactoryName + " in library " + fullLibraryName + " returned null"; + throw ServiceNotFoundException(msg.c_str()); + } + serviceWrapper->setLibrary(wrapperLib); + + return serviceWrapper; + } + + } // End namespace cpp + } // End namespace sca +} // End namespace tuscany |