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Diffstat (limited to 'sca-cpp/branches/cpp-contrib/contrib/runtime/core/src/tuscany/sca/core/SCARuntime.cpp')
| -rw-r--r-- | sca-cpp/branches/cpp-contrib/contrib/runtime/core/src/tuscany/sca/core/SCARuntime.cpp | 616 |
1 files changed, 616 insertions, 0 deletions
diff --git a/sca-cpp/branches/cpp-contrib/contrib/runtime/core/src/tuscany/sca/core/SCARuntime.cpp b/sca-cpp/branches/cpp-contrib/contrib/runtime/core/src/tuscany/sca/core/SCARuntime.cpp new file mode 100644 index 0000000000..d605f37f95 --- /dev/null +++ b/sca-cpp/branches/cpp-contrib/contrib/runtime/core/src/tuscany/sca/core/SCARuntime.cpp @@ -0,0 +1,616 @@ +/* + * 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/core/SCARuntime.h" +#include "tuscany/sca/util/Logging.h" +#include "tuscany/sca/util/Utils.h" +#include "tuscany/sca/model/ModelLoader.h" +#include "tuscany/sca/util/File.h" +#include "tuscany/sca/core/Exceptions.h" +#include "tuscany/sca/model/Composite.h" +#include "tuscany/sca/model/Component.h" + +using namespace std; +using namespace tuscany::sca::model; +using namespace tuscany::sca::util; + +namespace tuscany +{ + namespace sca + { + /** + * Environment variable names + */ + static const char* TUSCANY_SCACPP = "TUSCANY_SCACPP"; + static const char* TUSCANY_SCACPP_SYSTEM_ROOT = "TUSCANY_SCACPP_SYSTEM_ROOT"; + static const char* TUSCANY_SCACPP_DEFAULT_COMPONENT = "TUSCANY_SCACPP_DEFAULT_COMPONENT"; + + static const char* TUSCANY_SCACPP_ROOT = "TUSCANY_SCACPP_ROOT"; + static const char* TUSCANY_SCACPP_COMPONENT = "TUSCANY_SCACPP_COMPONENT"; + static const char* TUSCANY_SCACPP_PATH = "TUSCANY_SCACPP_PATH"; + static const char* TUSCANY_SCACPP_BASE_URI = "TUSCANY_SCACPP_BASE_URI"; + + // Initialize statics + SCARuntime* SCARuntime::sharedRuntime = NULL; + Mutex SCARuntime::sharedRuntimeLock; + ThreadLocal SCARuntime::current; + + + // =================================================================== + // Constructor for the SCARuntime class. This will + // hold all the information about the current runtime. + // =================================================================== + SCARuntime::SCARuntime(const string& insRoot, + const string& sysRoot, const string& sysPath, + const string& base, const string& defName) + : system(0), + installRoot(insRoot), systemRoot(sysRoot), systemPath(sysPath), + defaultBaseURI(base), defaultComponentName(defName) + { + logentry(); + + if (installRoot == "") + { + // Get install dir from environment variable TUSCANY_SCACPP + const char* root = getenv(TUSCANY_SCACPP); + if (root != NULL) + { + installRoot = root; + } + else + { + string msg = TUSCANY_SCACPP; + msg += " environment variable not set"; + throwException(SystemConfigurationException, msg.c_str()); + } + } + loginfo("SCA runtime install root: %s", installRoot.c_str()); + + if (systemRoot == "") + { + // Get root from environment variable TUSCANY_SCACPP_ROOT + char* systemRootEnv = getenv(TUSCANY_SCACPP_ROOT); + if (systemRootEnv == 0) + { + // Get root from environment variable TUSCANY_SCACPP_SYSTEM_ROOT + systemRootEnv = getenv(TUSCANY_SCACPP_SYSTEM_ROOT); + } + if (systemRootEnv == 0) + { + string msg = TUSCANY_SCACPP_ROOT; + msg += " environment variable not set"; + throwException(SystemConfigurationException, msg.c_str()); + } + + systemRoot = systemRootEnv; + } + else + { + loginfo("System root: %s", systemRoot.c_str()); + } + + if (systemPath == "") + { + + // Get system path from environment variable TUSCANY_SCACPP_PATH + char* systemPathEnv = getenv(TUSCANY_SCACPP_PATH); + if (systemPathEnv != 0) + { + systemPath = systemPathEnv; + } + } + else + { + loginfo("System path: %s", systemPath.c_str()); + } + + if (defaultBaseURI == "") + { + + // Get default base URI from environment variable TUSCANY_SCACPP_BASE_URI + char* baseURI = getenv(TUSCANY_SCACPP_BASE_URI); + if (baseURI != 0) + { + defaultBaseURI = baseURI; + } + } + else + { + loginfo("Default base URI: %s", defaultBaseURI.c_str()); + } + + if (defaultComponentName == "") + { + const char* defComp = getenv(TUSCANY_SCACPP_COMPONENT); + if (!defComp) + { + defComp = getenv(TUSCANY_SCACPP_DEFAULT_COMPONENT); + } + if (defComp) + { + defaultComponentName = defComp; + } + } + loginfo("Default component: %s", defaultComponentName.c_str()); + + SCARuntime* currentRuntime = (SCARuntime*)current.getValue(); + current.setValue(this); + try + { + + // Load the runtime extensions + loadExtensions(); + + // Load the system composite + loadSystem(); + } + catch (...) + { + current.setValue(currentRuntime); + throw; + } + current.setValue(currentRuntime); + + // Find the default component + if (defaultComponentName != "") + { + Component* comp = system->findComponent(defaultComponentName); + if (!comp) + { + string message = "Component \'" + defaultComponentName + "\' not found"; + throwException(SystemConfigurationException, message.c_str()); + } + defaultComponent.setValue(comp); + } + + } + + // =================================================================== + // Destructor for the SCARuntime class. + // =================================================================== + SCARuntime::~SCARuntime() + { + logentry(); + + if (system) + { + delete system; + } + } + + // ========================================================== + // Returns the system configuration root + // ========================================================== + const string& SCARuntime::getSystemRoot() + { + return systemRoot; + } + + // ========================================================== + // Returns the system path + // ========================================================== + const string& SCARuntime::getSystemPath() + { + return systemPath; + } + + // ========================================================== + // Returns the default component name + // ========================================================== + const string& SCARuntime::getDefaultComponentName() + { + return defaultComponentName ; + } + + // ========================================================== + // Returns the default base URI + // ========================================================== + const string& SCARuntime::getDefaultBaseURI() + { + return defaultBaseURI; + } + + // ========================================================== + // Returns the install root + // ========================================================== + const string& SCARuntime::getInstallRoot() + { + return installRoot; + } + + // ============================================================= + // Get the runtime associated with the current thread. + // ============================================================= + SCARuntime* SCARuntime::getCurrentRuntime() + { + logentry(); + + SCARuntime* runtime = (SCARuntime*)current.getValue(); + if (runtime == NULL) + { + runtime = getSharedRuntime(); + if (runtime != NULL) + { + setCurrentRuntime(runtime); + } + else + { + runtime = new SCARuntime(); + setCurrentRuntime(runtime); + } + } + loginfo("Runtime: %p", runtime); + return runtime; + } + + // ============================================================= + // Set the runtime associated with the current thread. + // ============================================================= + void SCARuntime::setCurrentRuntime(SCARuntime* runtime) + { + logentry(); + + loginfo("Runtime: %p", runtime); + current.setValue(runtime); + } + + // ============================================================= + // Get the runtime associated with the current process. + // ============================================================= + SCARuntime* SCARuntime::getSharedRuntime() + { + logentry(); + + sharedRuntimeLock.lock(); + SCARuntime* runtime = sharedRuntime; + sharedRuntimeLock.unlock(); + + return runtime; + } + + // ============================================================= + // Initialize the runtime associated with the current process. + // ============================================================= + SCARuntime* SCARuntime::initializeSharedRuntime(const string& installRoot, const string& systemRoot, + const string& systemPath, const string& baseURI, const string& defaultComponentName) + { + logentry(); + + SCARuntime* runtime; + + sharedRuntimeLock.lock(); + try + { + if (sharedRuntime == NULL) + { + sharedRuntime = new SCARuntime(installRoot, systemRoot, systemPath, baseURI, defaultComponentName); + } + else + { + if (installRoot.size() != 0 && sharedRuntime->getInstallRoot() != installRoot) + { + string msg = "Cannot reconfigure runtime installation directory: " + string(installRoot); + throwException(SystemConfigurationException, msg.c_str()); + } + if (systemRoot.size() != 0 && sharedRuntime->getSystemRoot() != systemRoot) + { + string msg = "Cannot reconfigure SCA system root: " + string(systemRoot); + throwException(SystemConfigurationException, msg.c_str()); + } + if (systemPath.size() != 0 && sharedRuntime->getSystemPath() != systemPath) + { + string msg = "Cannot reconfigure SCA system path: " + string(systemPath); + throwException(SystemConfigurationException, msg.c_str()); + } + if (baseURI.size() != 0 && sharedRuntime->getDefaultBaseURI() != baseURI) + { + string msg = "Cannot reconfigure SCA system URI: " + string(baseURI); + throwException(SystemConfigurationException, msg.c_str()); + } + if (defaultComponentName.size() != 0 && sharedRuntime->getDefaultComponentName() != defaultComponentName) + { + string msg = "Cannot reconfigure main SCA component: " + string(baseURI); + throwException(SystemConfigurationException, msg.c_str()); + } + } + + runtime = sharedRuntime; + } + catch (...) + { + sharedRuntimeLock.unlock(); + throw; + } + sharedRuntimeLock.unlock(); + + return runtime; + } + + // ====================================== + // Load the system composite + // ====================================== + void SCARuntime::loadSystem() + { + logentry(); + + system = new Composite("tuscany/sca/system", ""); + ModelLoader loader(this, system); + loader.load(systemRoot, systemPath); + } + + // ====================================== + // Load up extensions to the runtime + // ====================================== + void SCARuntime::loadExtensions() + { + logentry(); + + string extensionsRoot = installRoot + "/extensions"; + +#if defined(WIN32) || defined (_WINDOWS) + string libraryExtension = ".dll"; +#else +#if defined(IS_DARWIN) + string libraryExtension = ".dylib"; +#else + string libraryExtension = ".so"; +#endif +#endif + string pattern = "*" + libraryExtension; + + // Get list of all directories named "module" + Files extensionModules(extensionsRoot, "module", true, true); + loginfo("Found %i extension modules", extensionModules.size() ); + for (unsigned int emI=0; emI < extensionModules.size(); emI++) + { + string extensionRoot = extensionModules[emI].getDirectory().c_str(); + extensionRoot += "/module"; + loginfo("Loading extension module: %s", extensionRoot.c_str() ); + + Files files(extensionRoot, pattern, true); + loginfo("Found %i extension libraries", files.size() ); + for (unsigned int i=0; i < files.size(); i++) + { + try + { + string filename = files[i].getFileName(); + loginfo("Loading extension library: %s", filename ); + Library lib = Library( files[i].getDirectory() + "/" + filename); + + // Determine the name of the initialize method + // 1) strip the .dll/.so/.dylib suffix + // 2) for non-Windows strip any lib prefix + string initializeMethod; + #if defined(WIN32) || defined (_WINDOWS) + #else + if (filename.substr(0,3) == "lib") + { + initializeMethod = filename.substr(3, filename.size()-libraryExtension.size() - 3); + } + else + #endif + { + initializeMethod = filename.substr(0, filename.size()-libraryExtension.size()); + } + initializeMethod += "_initialize"; + TUSCANY_IMPLEMENTATION_EXTENSION_INITIALIZE extension = + (TUSCANY_IMPLEMENTATION_EXTENSION_INITIALIZE)lib.getSymbol(initializeMethod); + if (extension) + { + extension(); + extensionsList.push_back(lib); + } + } + catch (TuscanyRuntimeException& ex) + { + logwarning("Failed to load extension library: %s: %s: %s", + files[i].getFileName().c_str(), ex.getEClassName(), ex.getMessageText()); + } + } + } + } + + + // ====================================== + // register an interfaceExtension + // ====================================== + void SCARuntime::registerInterfaceExtension(InterfaceExtension* extension) + { + logentry(); + if (extension) + { + loginfo("Registering interface: %s", extension->getExtensionTypeQName().c_str()); + interfaceExtensions[extension->getExtensionTypeQName()] = extension; + } + } + + // ====================================== + // find an InterfaceExtension + // ====================================== + InterfaceExtension* SCARuntime::getInterfaceExtension(const string& extensionTypeQName) + { + return interfaceExtensions[extensionTypeQName]; + } + + // ====================================== + // register an implementationExtension + // ====================================== + void SCARuntime::registerImplementationExtension(ImplementationExtension* extension) + { + logentry(); + if (extension) + { + loginfo("Registering implementation: %s", extension->getExtensionTypeQName().c_str()); + implementationExtensions[extension->getExtensionTypeQName()] = extension; + } + } + + // ====================================== + // find an implementationExtension + // ====================================== + ImplementationExtension* SCARuntime::getImplementationExtension(const string& extensionTypeQName) + { + return implementationExtensions[extensionTypeQName]; + } + + // ====================================== + // register a referenceBindingExtension + // ====================================== + void SCARuntime::registerReferenceBindingExtension(ReferenceBindingExtension* extension) + { + logentry(); + if (extension) + { + loginfo("Registering reference binding: %s", extension->getExtensionTypeQName().c_str()); + referenceBindingExtensions[extension->getExtensionTypeQName()] = extension; + } + } + + // ====================================== + // find a referenceBindingExtension + // ====================================== + ReferenceBindingExtension* SCARuntime::getReferenceBindingExtension(const string& extensionTypeQName) + { + return referenceBindingExtensions[extensionTypeQName]; + } + + // ====================================== + // register a serviceBindingExtension + // ====================================== + void SCARuntime::registerServiceBindingExtension(ServiceBindingExtension* extension) + { + logentry(); + if (extension) + { + loginfo("Registering service binding: %s", extension->getExtensionTypeQName().c_str()); + serviceBindingExtensions[extension->getExtensionTypeQName()] = extension; + } + } + + // ====================================== + // find a serviceBindingExtension + // ====================================== + ServiceBindingExtension* SCARuntime::getServiceBindingExtension(const string& extensionTypeQName) + { + return serviceBindingExtensions[extensionTypeQName]; + } + + + // =================================== + // Return the top of the runtime model + // =================================== + Composite* SCARuntime::getSystem() + { + logentry(); + + return system; + } + + + // =================================================== + // setCurrentComponent: push component for this thread + // =================================================== + void SCARuntime::setCurrentComponent(Component* component) + { + logentry(); + + COMPONENT_STACK* compStack = (COMPONENT_STACK*)componentStack.getValue(); + if (compStack == NULL) + { + compStack = new COMPONENT_STACK(); + componentStack.setValue(compStack); + } + compStack->push(component); + } + + // ==================================================== + // unsetCurrentComponent: pop component for this thread + // ==================================================== + Component* SCARuntime::unsetCurrentComponent() + { + logentry(); + + COMPONENT_STACK* compStack = (COMPONENT_STACK*)componentStack.getValue(); + if (compStack != NULL) + { + if (compStack->size() > 0) + { + Component* component = compStack->top(); + compStack->pop(); + return component; + } + } + + return NULL; + } + + // ============================================================= + // getCurrentComponent: return current component for this thread + // ============================================================= + Component* SCARuntime::getCurrentComponent() + { + logentry(); + + COMPONENT_STACK* compStack = (COMPONENT_STACK*)componentStack.getValue(); + if (compStack != NULL) + { + if (compStack->size() > 0) + { + return compStack->top(); + } + } + + return NULL; + } + + // =========================================== + // getDefaultComponent: return the default composite component + // =========================================== + Component* SCARuntime::getDefaultComponent() + { + logentry(); + + Component* comp = (Component*)defaultComponent.getValue(); + if (comp == NULL && defaultComponentName != "") + { + comp = system->findComponent(defaultComponentName); + if (!comp) + { + string message = "Component \'" + defaultComponentName + "\' not found"; + throwException(SystemConfigurationException, message.c_str()); + } + defaultComponent.setValue(comp); + } + return comp; + } + + // =========================================== + // Set the default composite component + // =========================================== + void SCARuntime::setDefaultComponent(Component* component) + { + logentry(); + + return defaultComponent.setValue(component); + } + + } // End namespace sca +} // End namespace tuscany |