Examples of javax.servlet.jsp.JspFactory

javax.servlet.jsp.JspFactory

The JspFactory is an abstract class that defines a number of factory methods available to a JSP page at runtime for the purposes of creating instances of various interfaces and classes used to support the JSP implementation.
A conformant JSP Engine implementation will, during it's initialization instantiate an implementation dependent subclass of this class, and make it globally available for use by JSP implementation classes by registering the instance created with this class via the static setDefaultFactory() method.
The PageContext and the JspEngineInfo classes are the only implementation-dependent classes that can be created from the factory.
JspFactory objects should not be used by JSP page authors.

  private class JspExpressionHelper {


    public boolean setExpressionFactory(ELAttributeEvaluator evaluator) {
      try {
        // jsp-api-2.1 doesn't default instantiate a factory for us
        JspFactory factory = JspFactory.getDefaultFactory();
        if ((factory != null) && (factory.getJspApplicationContext(servletContext).getExpressionFactory() != null)) {
          logger.info("Found JSP 2.1 ExpressionFactory");
          evaluator.setExpressionFactory(factory.getJspApplicationContext(servletContext).getExpressionFactory());
          return true;
        }
      }
      catch (Throwable ex) {
        logger.warn("Could not obtain JSP 2.1 ExpressionFactory", ex);

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        // TODO adapt this test case for MyFaces 2.0, because currently it checks nothing!
        
        Jsp21FacesInitializer initializer = new Jsp21FacesInitializer();
        IMocksControl control = EasyMock.createControl();
        
        JspFactory jspFactory = control.createMock(JspFactory.class);
        initializer.setJspFactory(jspFactory);
        
        RuntimeConfig runtimeConfig = control.createMock(RuntimeConfig.class);
        
        ServletContext context = control.createMock(ServletContext.class);
        ExpressionFactory expressionFactory = control.createMock(ExpressionFactory.class);
        runtimeConfig.setExpressionFactory(expressionFactory);
        runtimeConfig.setPropertyResolverChainHead(isA(DefaultPropertyResolver.class));
        runtimeConfig.setVariableResolverChainHead(isA(VariableResolverImpl.class));
        
        expect(context.getAttribute(eq(RuntimeConfig.class.getName()))).andReturn(runtimeConfig).anyTimes();
        
        expect(context.getInitParameter(eq(FacesServlet.CONFIG_FILES_ATTR))).andReturn(null);
        expect(context.getResourceAsStream(eq("/WEB-INF/faces-config.xml"))).andReturn(null);
        expect(context.getInitParameter(eq(FacesServlet.LIFECYCLE_ID_ATTR))).andReturn(null);


        // TODO: add myfaces specific tests
        expect(context.getResource(isA(String.class))).andReturn(null);
        expect(context.getResourceAsStream(isA(String.class))).andReturn(null);
        expect(context.getInitParameter(isA(String.class))).andReturn(null).anyTimes();
        expect(context.getAttribute(isA(String.class))).andReturn(null).anyTimes();
        context.setAttribute(isA(String.class), anyObject());
        expectLastCall().anyTimes();
        expect(context.getRealPath(isA(String.class))).andAnswer(new IAnswer<String>() {
            public String answer() throws Throwable
            {
                return (String) org.easymock.EasyMock.getCurrentArguments()[0];
            }
        });
        
        JspApplicationContext jspAppCtx = control.createMock(JspApplicationContext.class);
        expect(jspAppCtx.getExpressionFactory()).andReturn(expressionFactory);
        jspAppCtx.addELContextListener(isA(FacesELContextListener.class));
        expect(jspFactory.getJspApplicationContext(eq(context))).andReturn(jspAppCtx);
        jspAppCtx.addELResolver(isA(FacesCompositeELResolver.class));


        control.replay();
        initializer.initFaces(context);

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        // TODO adapt this test case for MyFaces 2.0, because currently it checks nothing!
        
        Jsp21FacesInitializer initializer = new Jsp21FacesInitializer();
        IMocksControl control = EasyMock.createControl();
        
        JspFactory jspFactory = control.createMock(JspFactory.class);
        initializer.setJspFactory(jspFactory);
        
        RuntimeConfig runtimeConfig = control.createMock(RuntimeConfig.class);
        
        ServletContext context = control.createMock(ServletContext.class);
        ExpressionFactory expressionFactory = control.createMock(ExpressionFactory.class);
        runtimeConfig.setExpressionFactory(expressionFactory);
        runtimeConfig.setPropertyResolverChainHead(isA(DefaultPropertyResolver.class));
        runtimeConfig.setVariableResolverChainHead(isA(VariableResolverImpl.class));
        
        expect(context.getAttribute(eq(RuntimeConfig.class.getName()))).andReturn(runtimeConfig).anyTimes();
        
        expect(context.getInitParameter(eq(FacesServlet.CONFIG_FILES_ATTR))).andReturn(null);
        expect(context.getResourceAsStream(eq("/WEB-INF/faces-config.xml"))).andReturn(null);
        expect(context.getInitParameter(eq(FacesServlet.LIFECYCLE_ID_ATTR))).andReturn(null);


        // TODO: add myfaces specific tests
        expect(context.getResource(isA(String.class))).andReturn(null);
        expect(context.getResourceAsStream(isA(String.class))).andReturn(null);
        expect(context.getInitParameter(isA(String.class))).andReturn(null).anyTimes();
        expect(context.getAttribute(isA(String.class))).andReturn(null).anyTimes();
        context.setAttribute(isA(String.class), anyObject());
        expectLastCall().anyTimes();
        expect(context.getRealPath(isA(String.class))).andAnswer(new IAnswer<String>() {
            public String answer() throws Throwable
            {
                return (String) org.easymock.EasyMock.getCurrentArguments()[0];
            }
        });
        
        JspApplicationContext jspAppCtx = control.createMock(JspApplicationContext.class);
        expect(jspAppCtx.getExpressionFactory()).andReturn(expressionFactory);
        jspAppCtx.addELContextListener(isA(FacesELContextListener.class));
        expect(jspFactory.getJspApplicationContext(eq(context))).andReturn(jspAppCtx);
        jspAppCtx.addELResolver(isA(FacesCompositeELResolver.class));


        control.replay();
        initializer.initFaces(context);

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        // TODO adapt this test case for MyFaces 2.0, because currently it checks nothing!
        
        Jsp21FacesInitializer initializer = new Jsp21FacesInitializer();
        IMocksControl control = EasyMock.createControl();
        
        JspFactory jspFactory = control.createMock(JspFactory.class);
        initializer.setJspFactory(jspFactory);
        
        RuntimeConfig runtimeConfig = control.createMock(RuntimeConfig.class);
        
        ServletContext context = control.createMock(ServletContext.class);
        ExpressionFactory expressionFactory = control.createMock(ExpressionFactory.class);
        runtimeConfig.setExpressionFactory(expressionFactory);
        runtimeConfig.setPropertyResolverChainHead(isA(DefaultPropertyResolver.class));
        runtimeConfig.setVariableResolverChainHead(isA(VariableResolverImpl.class));
        
        expect(context.getAttribute(eq(RuntimeConfig.class.getName()))).andReturn(runtimeConfig).anyTimes();
        
        expect(context.getInitParameter(eq(FacesServlet.CONFIG_FILES_ATTR))).andReturn(null);
        expect(context.getResourceAsStream(eq("/WEB-INF/faces-config.xml"))).andReturn(null);
        expect(context.getInitParameter(eq(FacesServlet.LIFECYCLE_ID_ATTR))).andReturn(null);


        // TODO: add myfaces specific tests
        expect(context.getResource(isA(String.class))).andReturn(null);
        expect(context.getResourceAsStream(isA(String.class))).andReturn(null);
        expect(context.getInitParameter(isA(String.class))).andReturn(null).anyTimes();
        expect(context.getAttribute(isA(String.class))).andReturn(null).anyTimes();
        context.setAttribute(isA(String.class), anyObject());
        expectLastCall().anyTimes();
        expect(context.getRealPath(isA(String.class))).andAnswer(new IAnswer<String>() {
            public String answer() throws Throwable
            {
                return (String) org.easymock.EasyMock.getCurrentArguments()[0];
            }
        });
        
        JspApplicationContext jspAppCtx = control.createMock(JspApplicationContext.class);
        expect(jspAppCtx.getExpressionFactory()).andReturn(expressionFactory);
        jspAppCtx.addELContextListener(isA(FacesELContextListener.class));
        expect(jspFactory.getJspApplicationContext(eq(context))).andReturn(jspAppCtx);
        jspAppCtx.addELResolver(isA(FacesCompositeELResolver.class));


        control.replay();
        initializer.initFaces(context);

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            } catch (final Exception e) {
                logger.error("Error merging Java EE JNDI entries in to war " + standardContext.getPath() + ": Exception: " + e.getMessage(), e);
            }


            final JspFactory factory = JspFactory.getDefaultFactory();
            if (factory != null) {
                final JspApplicationContext applicationCtx = factory.getJspApplicationContext(standardContext.getServletContext());
                final WebBeansContext context = appContext.getWebBeansContext();
                if (context != null && context.getBeanManagerImpl().isInUse()) {
                    // Registering ELResolver with JSP container
                    final ELAdaptor elAdaptor = context.getService(ELAdaptor.class);
                    final ELResolver resolver = elAdaptor.getOwbELResolver();

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  private class JspExpressionChecker {


    public boolean isExpressionFactoryAvailable() {
      try {
        JspFactory factory = JspFactory.getDefaultFactory();
        if (factory != null &&
            factory.getJspApplicationContext(servletContext).getExpressionFactory() != null) {
          logger.info("Found JSP 2.1 ExpressionFactory");
          return true;
        }
      }
      catch (Throwable ex) {

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    public void testCreateAttributeEvaluatorFactory() {
        TilesApplicationContext applicationContext = createMock(TilesApplicationContext.class);
        TilesRequestContextFactory contextFactory = createMock(TilesRequestContextFactory.class);
        LocaleResolver resolver = createMock(LocaleResolver.class);
        ServletContext servletContext = createMock(ServletContext.class);
        JspFactory jspFactory = createMock(JspFactory.class);
        JspApplicationContext jspApplicationContext = createMock(JspApplicationContext.class);
        ExpressionFactory expressionFactory = createMock(ExpressionFactory.class);


        expect(applicationContext.getContext()).andReturn(servletContext);
        expect(jspFactory.getJspApplicationContext(servletContext)).andReturn(jspApplicationContext);
        expect(jspApplicationContext.getExpressionFactory()).andReturn(expressionFactory);


        replay(applicationContext, contextFactory, resolver, servletContext,
                jspFactory, jspApplicationContext, expressionFactory);
        JspFactory.setDefaultFactory(jspFactory);

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    public void testCreateAttributeEvaluatorFactory() {
        TilesApplicationContext applicationContext = createMock(TilesApplicationContext.class);
        TilesRequestContextFactory contextFactory = createMock(TilesRequestContextFactory.class);
        LocaleResolver resolver = createMock(LocaleResolver.class);
        ServletContext servletContext = createMock(ServletContext.class);
        JspFactory jspFactory = createMock(JspFactory.class);
        JspApplicationContext jspApplicationContext = createMock(JspApplicationContext.class);
        ExpressionFactory expressionFactory = createMock(ExpressionFactory.class);


        expect(applicationContext.getContext()).andReturn(servletContext);
        expect(jspFactory.getJspApplicationContext(servletContext)).andReturn(jspApplicationContext);
        expect(jspApplicationContext.getExpressionFactory()).andReturn(expressionFactory);


        replay(applicationContext, contextFactory, resolver, servletContext,
                jspFactory, jspApplicationContext, expressionFactory);
        JspFactory.setDefaultFactory(jspFactory);

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        ELResolver resolver = elAdaptor.getOwbELResolver();
        //Application is configured as JSP
        if (context.getOpenWebBeansConfiguration().isJspApplication()) {
            logger.debug("Application is configured as JSP. Adding EL Resolver.");


            JspFactory factory = JspFactory.getDefaultFactory();
            if (factory != null) {
                JspApplicationContext applicationCtx = factory.getJspApplicationContext(servletContext);
                applicationCtx.addELResolver(resolver);
            } else {
                logger.debug("Default JspFactory instance was not found");
            }
        }

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            } catch (Exception e) {
                logger.error("Error merging Java EE JNDI entries in to war " + standardContext.getPath() + ": Exception: " + e.getMessage(), e);
            }


            final JspFactory factory = JspFactory.getDefaultFactory();
            if (factory != null) {
                final JspApplicationContext applicationCtx = factory.getJspApplicationContext(standardContext.getServletContext());
                final WebBeansContext context = appContext.getWebBeansContext();
                if (context != null && context.getBeanManagerImpl().isInUse()) {
                    // Registering ELResolver with JSP container
                    final ELAdaptor elAdaptor = context.getService(ELAdaptor.class);
                    final ELResolver resolver = elAdaptor.getOwbELResolver();

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