Examples of org.apache.tuscany.sca.core.ModuleActivator

org.apache.tuscany.sca.core.ModuleActivator
ModuleActivator represents a module that plugs into the Tuscany system. Each module should provide an implementation of this interface and register the ModuleActivator implementation class by defining a file named "META-INF/services/org.apache.tuscany.core.ModuleActivator" The content of the file is the class name of the ModuleActivator implementation. The implementation class must have a no-arg constructor. The same instance will be used to invoke all the methods during different phases of the module activation. Note that the start and stop methods defined by this interface take a reference to the Tuscany SCA runtime ExtensionPointRegistry. This gives the ModuleActivator the oppotunity to add extension points to the registry as it is requested to start up and remove them when it is requested to shut down. @version $Rev: 579306 $ $Date: 2007-09-25 17:19:37 +0100 (Tue, 25 Sep 2007) $

        try {
          Set<ServiceDeclaration> moduleActivators = ServiceDiscovery.getInstance().getServiceDeclarations(ModuleActivator.class);
          
            for (ServiceDeclaration moduleDeclarator : moduleActivators) { 
              Class<?> moduleClass = moduleDeclarator.loadClass();
                ModuleActivator module = (ModuleActivator)moduleClass.newInstance();
                modules.add(module);
            }
        } catch (IOException e) {
            throw new ActivationException(e);
        } catch (ClassNotFoundException e) {

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                if (moduleClasses.contains(moduleDeclarator.getClassName())) {
                    continue;
                }
                moduleClasses.add(moduleDeclarator.getClassName());
                Class<?> moduleClass = moduleDeclarator.loadClass();
                ModuleActivator module = (ModuleActivator)moduleClass.newInstance();
                modules.add(module);
            }
        } catch (IOException e) {
            throw new ActivationException(e);
        } catch (ClassNotFoundException e) {

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                if (moduleClasses.contains(moduleDeclarator.getClassName())) {
                    continue;
                }
                moduleClasses.add(moduleDeclarator.getClassName());
                Class<?> moduleClass = moduleDeclarator.loadClass();
                ModuleActivator module = (ModuleActivator)moduleClass.newInstance();
                modules.add(module);
            }
        } catch (IOException e) {
            throw new ActivationException(e);
        } catch (ClassNotFoundException e) {

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                if (moduleClasses.contains(moduleDeclarator.getClassName())) {
                    continue;
                }
                moduleClasses.add(moduleDeclarator.getClassName());
                Class<?> moduleClass = moduleDeclarator.loadClass();
                ModuleActivator module = (ModuleActivator)moduleClass.newInstance();
                modules.add(module);
            }
        } catch (IOException e) {
            throw new ActivationException(e);
        } catch (ClassNotFoundException e) {

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                if (moduleClasses.contains(moduleDeclarator.getClassName())) {
                    continue;
                }
                moduleClasses.add(moduleDeclarator.getClassName());
                Class<?> moduleClass = moduleDeclarator.loadClass();
                ModuleActivator module = (ModuleActivator)moduleClass.newInstance();
                modules.add(module);
            }
        } catch (IOException e) {
            throw new ActivationException(e);
        } catch (ClassNotFoundException e) {

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                if (moduleClasses.contains(moduleDeclarator.getClassName())) {
                    continue;
                }
                moduleClasses.add(moduleDeclarator.getClassName());
                Class<?> moduleClass = moduleDeclarator.loadClass();
                ModuleActivator module = (ModuleActivator)moduleClass.newInstance();
                modules.add(module);
            }
        } catch (IOException e) {
            throw new ActivationException(e);
        } catch (ClassNotFoundException e) {

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                if (moduleClasses.contains(moduleDeclarator.getClassName())) {
                    continue;
                }
                moduleClasses.add(moduleDeclarator.getClassName());
                Class<?> moduleClass = moduleDeclarator.loadClass();
                ModuleActivator module = (ModuleActivator)moduleClass.newInstance();
                modules.add(module);
            }
        } catch (IOException e) {
            throw new ActivationException(e);
        } catch (ClassNotFoundException e) {

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        modules = new ArrayList<ModuleActivator>();
        try {
            List<String> classNames = ServiceConfigurationUtil.getServiceClassNames(classLoader, ModuleActivator.class.getName());
            for (String className : classNames) {       
                Class moduleClass = Class.forName(className, true, classLoader);
                ModuleActivator module = (ModuleActivator)moduleClass.newInstance();
                modules.add(module);
            }
        } catch (IOException e) {
            throw new ActivationException(e);
        } catch (ClassNotFoundException e) {

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        for (ServiceRegistration reg : services.values()) {
            ServiceReference ref = reg.getReference();
            if (ref != null) {
                Object service = bundleContext.getService(ref);
                if (service instanceof ModuleActivator) {
                    ModuleActivator activator = (ModuleActivator)service;
                    map.put(activator, activator);
                }
                reg.unregister();
            }
        }
        for (ModuleActivator activator : map.values()) {
            activator.stop(this);
        }
        services.clear();
    }

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                if (moduleClasses.contains(moduleDeclarator.getClassName())) {
                    continue;
                }
                moduleClasses.add(moduleDeclarator.getClassName());
                Class<?> moduleClass = moduleDeclarator.loadClass();
                ModuleActivator module = (ModuleActivator)moduleClass.newInstance();
                modules.add(module);
            }
        } catch (IOException e) {
            throw new ActivationException(e);
        } catch (ClassNotFoundException e) {

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