// Negative tests (should throw exceptions)
public void testNegative() throws Exception {
VariableResolver variableResolver = getFacesContext().getApplication().getVariableResolver();
Object value = null;
// ---------- NullPointerException Returns ----------
try {
value = variableResolver.resolveVariable(getFacesContext(), null);
fail("Should have thrown NullPointerException");
} catch (NullPointerException e) {; // Expected result
}
try {
value = variableResolver.resolveVariable(null, "foo");
fail("Should have thrown NullPointerException");
} catch (NullPointerException e) {; // Expected result
}
try {
value = variableResolver.resolveVariable(null, null);
fail("Should have thrown NullPointerException");
} catch (NullPointerException e) {; // Expected result
}
}
public void testScopedLookup() {
TestBean testBean = new TestBean();
InnerBean newInner, oldInner = new InnerBean();
testBean.setInner(oldInner);
VariableResolver variableResolver = getFacesContext().getApplication().getVariableResolver();
Object result = null;
getFacesContext().getExternalContext().getSessionMap().remove("TestBean");
//
// Get tests
//
// application
getFacesContext().getExternalContext().getApplicationMap().put("TestBean", testBean);
result = variableResolver.resolveVariable(getFacesContext(), "TestBean");
assertTrue(result == testBean);
getFacesContext().getExternalContext().getApplicationMap().remove("TestBean");
// session
getFacesContext().getExternalContext().getSessionMap().put("TestBean", testBean);
result = variableResolver.resolveVariable(getFacesContext(), "TestBean");
assertTrue(result == testBean);
getFacesContext().getExternalContext().getSessionMap().remove("TestBean");
// session
getFacesContext().getExternalContext().getRequestMap().put("TestBean", testBean);
result = variableResolver.resolveVariable(getFacesContext(), "TestBean");
assertTrue(result == testBean);
getFacesContext().getExternalContext().getRequestMap().remove("TestBean");
}
@Override
@SuppressWarnings("deprecation")
public Object getValue(ELContext context, Object base, Object property) throws ELException {
// Don't call into the chain unless it's been decorated.
if (legacyVR instanceof ChainAwareVariableResolver) {
return null;
}
if (base != null) {
return null;
}
if (base == null && property == null) {
String message =
MessageUtils.getExceptionMessageString(
MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "base and property"); // ?????
throw new PropertyNotFoundException(message);
}
context.setPropertyResolved(true);
Object result = null;
FacesContext facesContext = (FacesContext) context.getContext(FacesContext.class);
String propString = property.toString();
Map<String, Object> stateMap = RequestStateManager.getStateMap(facesContext);
try {
// If we are already in the midst of an expression evaluation
// that touched this resolver...
//noinspection unchecked
List<String> varNames = (List<String>) stateMap.get(RequestStateManager.REENTRANT_GUARD);
if (varNames != null && !varNames.isEmpty() && varNames.contains(propString)) {
// take no action and return.
context.setPropertyResolved(false);
return null;
}
// Make sure subsequent calls don't take action.
if (varNames == null) {
varNames = new ArrayList<>();
stateMap.put(RequestStateManager.REENTRANT_GUARD, varNames);
}
varNames.add(propString);
result = legacyVR.resolveVariable(facesContext, propString);
} catch (EvaluationException ex) {
context.setPropertyResolved(false);
throw new ELException(ex);
} finally {
// Make sure to remove the guard after the call returns
//noinspection unchecked
List<String> varNames = (List<String>) stateMap.get(RequestStateManager.REENTRANT_GUARD);
if (varNames != null && !varNames.isEmpty()) {
varNames.remove(propString);
}
// Make sure that the ELContext "resolved" indicator is set
// in accordance wth the result of the resolution.
context.setPropertyResolved(result != null);
}
return result;
}
/**
* This test verifies that if the variable resolver does not find a managed bean it tries to
* instantiate it if it was added to the application's managed bean factory list.
*/
public void testManagedBean() throws Exception {
String beanName = "com.sun.faces.TestBean";
ManagedBeanInfo beanInfo =
new ManagedBeanInfo(beanName, beanName, "session", null, null, null, null);
ApplicationFactory aFactory =
(ApplicationFactory) FactoryFinder.getFactory(FactoryFinder.APPLICATION_FACTORY);
ApplicationImpl application = (ApplicationImpl) aFactory.getApplication();
ApplicationAssociate associate = ApplicationAssociate.getCurrentInstance();
BeanManager manager = associate.getBeanManager();
manager.register(beanInfo);
VariableResolver variableResolver = application.getVariableResolver();
Object result = variableResolver.resolveVariable(getFacesContext(), beanName);
assertTrue(result instanceof TestBean);
}
public void testImplicitObjects() {
VariableResolver variableResolver = getFacesContext().getApplication().getVariableResolver();
Object result = null;
//
// test scope maps
//
// ApplicationMap
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "applicationScope")
== getFacesContext().getExternalContext().getApplicationMap());
// SessionMap
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "sessionScope")
== getFacesContext().getExternalContext().getSessionMap());
// RequestMap
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "requestScope")
== getFacesContext().getExternalContext().getRequestMap());
//
// test request objects
//
// cookie
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "cookie")
== getFacesContext().getExternalContext().getRequestCookieMap());
// header
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "header")
== getFacesContext().getExternalContext().getRequestHeaderMap());
// headerValues
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "headerValues")
== getFacesContext().getExternalContext().getRequestHeaderValuesMap());
// parameter
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "param")
== getFacesContext().getExternalContext().getRequestParameterMap());
// parameterValues
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "paramValues")
== getFacesContext().getExternalContext().getRequestParameterValuesMap());
//
// misc
//
// initParameter
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "initParam")
== getFacesContext().getExternalContext().getInitParameterMap());
// facesContext
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "facesContext") == getFacesContext());
// tree
// create a dummy root for the tree.
UIViewRoot page = Util.getViewHandler(getFacesContext()).createView(getFacesContext(), null);
page.setId("root");
page.setViewId("newTree");
page.setLocale(Locale.US);
getFacesContext().setViewRoot(page);
assertTrue(
variableResolver.resolveVariable(getFacesContext(), "view")
== getFacesContext().getViewRoot());
}