Examples of org.apache.tuscany.core.context.scope.SessionScopeContext

Package org.apache.tuscany.core.context.scope

Examples of org.apache.tuscany.core.context.scope.SessionScopeContext

org.apache.tuscany.core.context.scope.SessionScopeContext
An implementation of an session-scoped component container. This scope contexts eagerly starts contexts when a {@link org.apache.tuscany.core.context.event.SessionStart} event is received. If a contained context has an implementationmarked to eagerly initialized, the an instance will be created at that time as well. Contained contexts are shutdown when a {@link org.apache.tuscany.core.context.event.SessionEnd} event is received in reverse order to which their implementationinstances were created. TODO this implementation needs to be made generic so that it supports a range of session types, i.e. not tied to HTTP session scope @version $Rev: 408581 $ $Date: 2006-05-21 23:34:24 -0700 (Sun, 21 May 2006) $

        scope.stop();
    }


    public void testGetContextByKey() throws Exception {
        EventContext ctx = new EventContextImpl();
        SessionScopeContext scope = new SessionScopeContext(ctx);
        scope.registerFactories(createConfigurations());
        scope.start();
        Object session = new Object();
        Object session2 = new Object();


        // first request
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session);
        SessionScopeComponent comp1 = (SessionScopeComponent) scope.getContext("TestService1").getInstance(null);
        Assert.assertNotNull(comp1);
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        // second request, different session
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session2);
        SessionScopeComponent comp2 = (SessionScopeComponent) scope.getContextByKey("TestService1", session)
                .getInstance(null);
        SessionScopeComponent comp3 = (SessionScopeComponent) scope.getContextByKey("TestService1", session)
                .getInstance(null);
        Assert.assertNotNull(comp2);
        Object id = new Object();
        scope.onEvent(new RequestEnd(this, id));
        Assert.assertSame(comp1, comp2); // should be same instances
        Assert.assertSame(comp2, comp3); // should not be same instances
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        // shutdown sessions
        scope.onEvent(new HttpSessionEnd(this, session));
        scope.onEvent(new HttpSessionEnd(this, session2));


        scope.stop();
    }

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        scope.stop();
    }


    public void testRegisterContextBeforeSession() throws Exception {
        EventContext ctx = new EventContextImpl();
        SessionScopeContext scope = new SessionScopeContext(ctx);
        scope.registerFactories(createConfigurations());
        scope.start();
        Object session = new Object();
        scope.registerFactory(createConfiguration("NewTestService"));


        // first request
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session);


        SessionScopeInitDestroyComponent comp2 = (SessionScopeInitDestroyComponent) scope.getContext("NewTestService")
                .getInstance(null);
        Assert.assertNotNull(comp2);
        Assert.assertTrue(comp2.isInitialized());
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        // second request different session
        Object session2 = new Object();
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session2);
        SessionScopeInitDestroyComponent comp3 = (SessionScopeInitDestroyComponent) scope.getContext("NewTestService")
                .getInstance(null);
        Assert.assertNotNull(comp3);
        Assert.assertNotSame(comp2, comp3);
        Assert.assertTrue(comp3.isInitialized());
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        scope.onEvent(new HttpSessionEnd(this, session));
        Assert.assertTrue(comp2.isDestroyed());


        scope.onEvent(new HttpSessionEnd(this, session2));
        Assert.assertTrue(comp3.isDestroyed());
        scope.stop();
    }

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    /**
     * Tests runtime context registration
     */
    public void testRegisterContextAfterSession() throws Exception {
        EventContext ctx = new EventContextImpl();
        SessionScopeContext scope = new SessionScopeContext(ctx);
        scope.registerFactories(createConfigurations());
        scope.start();
        Object session = new Object();


        // first request
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session);
        SessionScopeComponent comp1 = (SessionScopeComponent) scope.getContext("TestService1").getInstance(null);
        Assert.assertNotNull(comp1);
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        scope.registerFactory(createConfiguration("NewTestService"));


        // second request
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session);
        SessionScopeInitDestroyComponent comp2 = (SessionScopeInitDestroyComponent) scope.getContext("NewTestService")
                .getInstance(null);
        Assert.assertNotNull(comp2);
        Assert.assertTrue(comp2.isInitialized());
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        // third request different session
        Object session2 = new Object();
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session2);
        SessionScopeInitDestroyComponent comp3 = (SessionScopeInitDestroyComponent) scope.getContext("NewTestService")
                .getInstance(null);
        Assert.assertNotNull(comp3);
        Assert.assertNotSame(comp2, comp3);
        Assert.assertTrue(comp3.isInitialized());
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        scope.onEvent(new HttpSessionEnd(this, session));
        Assert.assertTrue(comp2.isDestroyed());


        scope.onEvent(new HttpSessionEnd(this, session2));
        Assert.assertTrue(comp3.isDestroyed());
        scope.stop();
    }

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    /**
     * Tests instance identity is properly maintained
     */
    public void testInstanceManagement() throws Exception {
        EventContext ctx = new EventContextImpl();
        SessionScopeContext scope = new SessionScopeContext(ctx);
        scope.registerFactories(createConfigurations());
        scope.start();
        Object session = new Object();
        Object session2 = new Object();
        // first request
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session);
        SessionScopeComponent comp1 = (SessionScopeComponent) scope.getContext("TestService1").getInstance(null);
        Assert.assertNotNull(comp1);
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        // second request
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session);
        SessionScopeComponent comp2 = (SessionScopeComponent) scope.getContext("TestService1").getInstance(null);
        Assert.assertNotNull(comp2);
        Assert.assertSame(comp1, comp2);
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        // third request, different session
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER, session2);
        SessionScopeComponent comp3 = (SessionScopeComponent) scope.getContext("TestService1").getInstance(null);
        Assert.assertNotNull(comp3);
        Assert.assertNotSame(comp1, comp3); // should be different instances
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        scope.onEvent(new HttpSessionEnd(this, session));
        scope.onEvent(new HttpSessionEnd(this, session2));
        scope.stop();
    }

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    /**
     * Tests setting no components in the scope
     */
    public void testSetNullComponents() throws Exception {
        EventContext ctx = new EventContextImpl();
        SessionScopeContext scope = new SessionScopeContext(ctx);
        scope.registerFactories(new ArrayList<ContextFactory<Context>>());
        scope.start();
        scope.stop();
    }

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    /**
     * Tests instance identity is properly maintained
     */
    public void testInitDestroy() throws Exception {
        EventContext ctx = new EventContextImpl();
        SessionScopeContext scope = new SessionScopeContext(ctx);
        scope.registerFactories(createComponents());
        scope.start();
        Object session = new Object();
        // first request, no need to notify scope container since sessions are
        // evaluated lazily
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER,session);
        SessionScopeInitDestroyComponent initDestroy = (SessionScopeInitDestroyComponent) scope.getContext(
                "TestServiceInitDestroy").getInstance(null);
        Assert.assertNotNull(initDestroy);
        SessionScopeInitOnlyComponent initOnly = (SessionScopeInitOnlyComponent) scope.getContext("TestServiceInitOnly")
                .getInstance(null);
        Assert.assertNotNull(initOnly);
        SessionScopeDestroyOnlyComponent destroyOnly = (SessionScopeDestroyOnlyComponent) scope.getContext(
                "TestServiceDestroyOnly").getInstance(null);
        Assert.assertNotNull(destroyOnly);


        Assert.assertTrue(initDestroy.isInitialized());
        Assert.assertTrue(initOnly.isInitialized());
        Assert.assertFalse(initDestroy.isDestroyed());
        Assert.assertFalse(destroyOnly.isDestroyed());
        // end request
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);
        // expire session
        scope.onEvent(new HttpSessionEnd(this,session));
        Assert.assertTrue(initDestroy.isDestroyed());
        Assert.assertTrue(destroyOnly.isDestroyed());


        scope.stop();
    }

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    /**
     * Test instances destroyed in proper (i.e. reverse) order
     */
    public void testDestroyOrder() throws Exception {
        EventContext ctx = new EventContextImpl();
        SessionScopeContext scope = new SessionScopeContext(ctx);
        scope.registerFactories(createOrderedInitComponents());
        scope.start();
        Object session = new Object();
        // request start
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER,session);


        SessionScopedOrderedInitPojo one = (SessionScopedOrderedInitPojo) scope.getContext("one").getInstance(null);
        Assert.assertNotNull(one);
        Assert.assertEquals(1, one.getNumberInstantiated());
        Assert.assertEquals(1, one.getInitOrder());


        SessionScopedOrderedInitPojo two = (SessionScopedOrderedInitPojo) scope.getContext("two").getInstance(null);
        Assert.assertNotNull(two);
        Assert.assertEquals(2, two.getNumberInstantiated());
        Assert.assertEquals(2, two.getInitOrder());


        SessionScopedOrderedInitPojo three = (SessionScopedOrderedInitPojo) scope.getContext("three").getInstance(null);
        Assert.assertNotNull(three);
        Assert.assertEquals(3, three.getNumberInstantiated());
        Assert.assertEquals(3, three.getInitOrder());


        // end request
        ctx.clearIdentifier(HttpSessionEvent.HTTP_IDENTIFIER);


        // expire session
        scope.onEvent(new HttpSessionEnd(this, session));
        Assert.assertEquals(0, one.getNumberInstantiated());
        scope.stop();
    }

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        scope.stop();
    }


    public void testInitDestroyOrderSessionScope() throws Exception {
        EventContext ctx = new EventContextImpl();
        SessionScopeContext scope = new SessionScopeContext(ctx);
        scope.registerFactories(MockContextFactory.createWiredContexts(Scope.SESSION,scope));
        scope.start();
        Object session =  new Object();
        ctx.setIdentifier(HttpSessionEvent.HTTP_IDENTIFIER,session);
        scope.onEvent(new HttpSessionBound(this,session));
        OrderedDependentPojo source = (OrderedDependentPojo) scope.getContext("source").getInstance(null);
        assertNotNull(source.getPojo());
        // expire module
        assertEquals(2,source.getNumberInstantiated());
        scope.onEvent(new HttpSessionEnd(this,session));
        assertEquals(0,source.getNumberInstantiated());
        scope.stop();
    }

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