Examples of org.jboss.gravia.runtime.ModuleContext

org.jboss.gravia.runtime.ModuleContext
A module's execution context within the Runtime. The context is used to grant access to other methods so that this module can interact with the Runtime.
{@code ModuleContext} methods allow a module to:
- Subscribe to events published by the Runtime.
- Register service objects with the Runtime service registry.
- Retrieve {@code ServiceReferences} from the Runtime service registry.
- Get and release service objects for a referenced service.
- Create {@code File} objects for files in a persistent storage area provided for the module by the Runtime.
A {@code ModuleContext} object will be created for a module when the moduleis started. The {@code Module} object associated with a {@code ModuleContext}object is called the context module.
The {@code ModuleContext} object will be passed to the{@link ModuleActivator#start(ModuleContext)} method during activation of thecontext module. The same {@code ModuleContext} object will be passed to the{@link ModuleActivator#stop(ModuleContext)} method when the context module isstopped. A {@code ModuleContext} object is generally for the private use ofits associated module and is not meant to be shared with other modules in the environment.
The {@code ModuleContext} object is only valid during the execution of itscontext module; that is, during the period from when the context module is in the {@code STARTING}, {@code STOPPING}, and {@code ACTIVE} module states. Ifthe {@code ModuleContext} object is used subsequently, an{@code IllegalStateException} must be thrown. The {@code ModuleContext}object must never be reused after its context module is stopped.
Two {@code ModuleContext} objects are equal if they both refer to the sameexecution context of a module. The Runtime is the only entity that can create {@code ModuleContext} objects and they are only valid within theRuntime that created them.
A {@link Module} can be {@link Module#adapt(Class) adapted} to its{@code ModuleContext}. @author thomas.diesler@jboss.com @since 27-Sep-2013 @ThreadSafe

        Runtime runtime = injectedRuntime.getValue();
        MatchPolicy matchPolicy = new DefaultMatchPolicy();
        File modulesDir = injectedServerEnvironment.getValue().getModulesDir();
        environment = new RuntimeEnvironment(runtime, new SystemResourceStore(modulesDir), matchPolicy);


        ModuleContext syscontext = runtime.getModuleContext();
        registration = syscontext.registerService(RuntimeEnvironment.class, environment, null);
    }

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    }


    private void registerServices(ServletContext servletContext, Runtime runtime) {
        RuntimeEnvironment environment = new RuntimeEnvironment(runtime).initDefaultContent();
        TomcatResourceInstaller installer = new TomcatResourceInstaller(environment);
        ModuleContext syscontext = runtime.getModuleContext();
        registrations.add(syscontext.registerService(RuntimeEnvironment.class, environment, null));
        registrations.add(syscontext.registerService(ResourceInstaller.class, installer, null));
    }

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                } else if (event.getType() == ModuleEvent.UNINSTALLED) {
                    removeRuntimeResource(module.getIdentity());
                }
            }
        };
        ModuleContext syscontext = runtime.getModuleContext();
        syscontext.addModuleListener(listener);
    }

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    }


    private void registerServices(ServletContext servletContext, Runtime runtime) {
        RuntimeEnvironment environment = new RuntimeEnvironment(runtime).initDefaultContent();
        TomcatResourceInstaller installer = new TomcatResourceInstaller(environment);
        ModuleContext syscontext = runtime.getModuleContext();
        registrations.add(syscontext.registerService(RuntimeEnvironment.class, environment, null));
        registrations.add(syscontext.registerService(ResourceInstaller.class, installer, null));
    }

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        Assert.assertEquals(Module.State.ACTIVE, modA.getState());


        String symbolicName = modA.getHeaders().get("Bundle-SymbolicName");
        Assert.assertEquals("simple-bundle", symbolicName);


        ModuleContext context = modA.getModuleContext();
        Module sysmodule = runtime.getModule(0);
        symbolicName = sysmodule.getHeaders().get("Bundle-SymbolicName");
        Assert.assertNotNull("System bundle symbolic name not null", symbolicName);


        ServiceReference<String> sref = context.getServiceReference(String.class);
        String service = context.getService(sref);
        Assert.assertEquals("Hello", service);


        modA.stop();
        Assert.assertEquals(Module.State.INSTALLED, modA.getState());

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        Assert.assertEquals(Module.State.ACTIVE, modA.getState());


        String symbolicName = modA.getHeaders().get("Bundle-SymbolicName");
        Assert.assertEquals("simple-module", symbolicName);


        ModuleContext context = modA.getModuleContext();
        Module sysmodule = runtime.getModule(0);
        symbolicName = sysmodule.getHeaders().get("Bundle-SymbolicName");
        Assert.assertNotNull("System bundle symbolic name not null", symbolicName);


        ServiceReference<String> sref = context.getServiceReference(String.class);
        String service = context.getService(sref);
        Assert.assertEquals("Hello", service);


        modA.stop();
        Assert.assertEquals(Module.State.INSTALLED, modA.getState());

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    public void testBasicModule() throws Exception {


        Runtime runtime = RuntimeLocator.getRequiredRuntime();
        Module module = runtime.getModule(getClass().getClassLoader());


        ModuleContext ctxA = module.getModuleContext();
        ServiceReference<ServiceD> srefD = ctxA.getServiceReference(ServiceD.class);
        Assert.assertNotNull("ServiceReference not null", srefD);


        ServiceD srvD = ctxA.getService(srefD);
        Assert.assertEquals("ServiceD#1:ServiceD1#1:null:Hello", srvD.doStuff("Hello"));


        ConfigurationAdmin configAdmin = getConfigurationAdmin(module);
        Configuration config = configAdmin.getConfiguration(ServiceD1.class.getName());
        Assert.assertNotNull("Config not null", config);

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        Assert.assertEquals("ServiceD#1:ServiceD1#1:bar:Hello", srvD.doStuff("Hello"));
    }


    protected ConfigurationAdmin getConfigurationAdmin(Module module) {
        ModuleContext context = module.getModuleContext();
        return context.getService(context.getServiceReference(ConfigurationAdmin.class));
    }

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        Assert.assertEquals(Module.State.ACTIVE, modA.getState());


        String symbolicName = modA.getHeaders().get("Bundle-SymbolicName");
        Assert.assertEquals("simple-module", symbolicName);


        ModuleContext context = modA.getModuleContext();
        Module sysmodule = runtime.getModule(0);
        symbolicName = sysmodule.getHeaders().get("Bundle-SymbolicName");
        Assert.assertNotNull("System bundle symbolic name not null", symbolicName);


        ServiceReference<String> sref = context.getServiceReference(String.class);
        String service = context.getService(sref);
        Assert.assertEquals("Hello", service);


        modA.stop();
        Assert.assertEquals(Module.State.INSTALLED, modA.getState());

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    public void testServiceAvailability() throws Exception {


        Runtime runtime = RuntimeLocator.getRequiredRuntime();
        Module modA = runtime.getModule(getClass().getClassLoader());


        ModuleContext ctxA = modA.getModuleContext();
        ServiceReference<ServiceA> srefA = ctxA.getServiceReference(ServiceA.class);
        Assert.assertNotNull("ServiceReference not null", srefA);


        ServiceA srvA = ctxA.getService(srefA);
        Assert.assertEquals("ServiceA#1:ServiceA1#1:Hello", srvA.doStuff("Hello"));


        assertDisableComponent(ctxA, srvA);
    }

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