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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.
*/
/* $Rev$ $Date$ */
#ifndef tuscany_sca_core_scaruntime_h
#define tuscany_sca_core_scaruntime_h
#include "tuscany/sca/export.h"
#include "tuscany/sca/extension/InterfaceExtension.h"
#include "tuscany/sca/extension/ImplementationExtension.h"
#include "tuscany/sca/extension/ReferenceBindingExtension.h"
#include "tuscany/sca/extension/ServiceBindingExtension.h"
#include "tuscany/sca/model/Composite.h"
#include "tuscany/sca/model/Component.h"
#include "tuscany/sca/util/Library.h"
#if defined(WIN32) || defined (_WINDOWS)
#include <windows.h>
#else
#include <pthread.h>
#endif
#include <stack>
#include <string>
#include <map>
#include <list>
using namespace std;
using namespace tuscany::sca::model;
namespace tuscany
{
namespace sca
{
/**
* A singleton which represents the executing SCA runtime.
*/
class SCARuntime {
public:
/**
* Get the single instance.
* @return The single instance of the runtime.
*/
SCA_API static SCARuntime* getInstance();
/**
* Release the single instance.
*/
SCA_API static void releaseInstance();
/**
* Load the SCA configuration from the scdl files (sca.composite,
* *.fragment, etc).
* This will create the runtime model from which the SCA runtime
* will operate.
*/
SCA_API void load();
/**
* Set the system root
* @param root The path to the system configuration.
*/
static void setSystemRoot(const string& root);
/**
* Set the search path for composites.
* @param path The search path for composites.
*/
static void setSystemPath(const string& path);
/**
* Set the default Component for the system
* @param componentName The name of the default component.
*/
static void setDefaultComponentName(const string& componentName);
/**
* Set the current component for the current thread.
* @param component The current component.
*/
SCA_API void setCurrentComponent(Component* component);
/**
* Remove the current component from this thread, and return
* to the previous component (if there was one).
* @return The previous component.
*/
SCA_API Component* unsetCurrentComponent();
/**
* Get a pointer to the configured SCA system which this
* SCA runtime represents.
* The rest of the SCA configuration can be navigated from
* the System.
* @return The configured SCA system.
*/
SCA_API Composite* getSystem();
/**
* The directory in which the Tuscany runtime has been installed.
*/
SCA_API const string& getInstallRoot() {return SCARoot;}
/**
* Return the current component for this thread.
* @return The current component for this thread.
*/
SCA_API Component* getCurrentComponent();
/**
* Get the default component set for this runtime.
* @return The default composite.
*/
SCA_API Component* getDefaultComponent();
/**
* Register an implementation extension
*/
SCA_API void registerImplementationExtension(ImplementationExtension* extension);
/**
* Returns the implementation extension associated with
* the specified qname
*/
SCA_API ImplementationExtension* getImplementationExtension(const string& typeQname);
/**
* Register a reference binding extension
*/
SCA_API void registerReferenceBindingExtension(ReferenceBindingExtension* extension);
/**
* Returns the reference binding extension associated with
* the specified qname
*/
SCA_API ReferenceBindingExtension* getReferenceBindingExtension(const string& typeQname);
/**
* Register a service binding extension
*/
SCA_API void registerServiceBindingExtension(ServiceBindingExtension* extension);
/**
* Returns the service binding extension associated with
* the specified qname
*/
SCA_API ServiceBindingExtension* getServiceBindingExtension(const string& typeQname);
/**
* Register an interface extension
*/
SCA_API void registerInterfaceExtension(InterfaceExtension* extension);
/**
* Returns the interface extension associated with
* the specified qname
*/
SCA_API InterfaceExtension* getInterfaceExtension(const string& typeQname);
private:
/**
* Default constructor is private to prevent more than one instance.
*/
SCARuntime();
virtual ~SCARuntime();
/**
* The single instance of this class.
*/
static SCARuntime* instance;
/**
* Pointer to the top of the runtime model.
*/
Composite* system;
/**
* The installed path of the Tuscany runtime.
*/
string SCARoot;
/**
* The path to the system configuration
*/
static string systemRoot;
/**
* The search path for composites.
*/
static string systemPath;
/**
* The default CompositeComponent.
*/
static string defaultComponentName;
/**
* The default component set for this runtime.
*/
Component* defaultComponent;
typedef stack<Component*> COMPONENT_STACK;
#if defined(WIN32) || defined (_WINDOWS)
typedef map<DWORD, COMPONENT_STACK> COMPONENTS_MAP;
#else
typedef map<pthread_t, COMPONENT_STACK> COMPONENTS_MAP;
#endif
/**
* A map of threads to components.
*/
COMPONENTS_MAP components;
typedef map<string, ImplementationExtension*> IMPLEMENTATION_EXTENSIONS_MAP;
IMPLEMENTATION_EXTENSIONS_MAP implementationExtensions;
typedef map<string, ReferenceBindingExtension*> REFERENCE_BINDING_EXTENSIONS_MAP;
REFERENCE_BINDING_EXTENSIONS_MAP referenceBindingExtensions;
typedef map<string, ServiceBindingExtension*> SERVICE_BINDING_EXTENSIONS_MAP;
SERVICE_BINDING_EXTENSIONS_MAP serviceBindingExtensions;
typedef map<string, InterfaceExtension*> INTERFACE_EXTENSIONS_MAP;
INTERFACE_EXTENSIONS_MAP interfaceExtensions;
// Runtime Extensions
void loadExtensions();
typedef list<Library> EXTENSIONS_LIST;
EXTENSIONS_LIST extensionsList;
};
} // End namespace sca
} // End namespace tuscany
typedef void (* TUSCANY_IMPLEMENTATION_EXTENSION_INITIALIZE) ();
#endif // tuscany_sca_core_scaruntime_h
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