// Javadoc inherited.
protected Value execute(
ExpressionContext expressionContext, DevicePolicyValueAccessor accessor, Value defaultValue) {
Value value = null;
ExpressionFactory factory = expressionContext.getFactory();
// determine the size of the colour palette
String palette = accessor.getDependentPolicyValue(DevicePolicyConstants.PALETTE);
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Size of colour palette (from repository):" + palette);
}
try {
value = factory.createIntValue(Integer.parseInt(palette));
} catch (NumberFormatException e) {
// log it but continue
LOGGER.info(
"function-bad-parameter-value", new Object[] {palette, DevicePolicyConstants.PALETTE});
}
if (value == null) {
// Verify that the default value is of the correct type
if (defaultValue instanceof NumericValue) {
value = defaultValue;
} else {
if (defaultValue != null) {
// log the fact that the default was present but wrong type
LOGGER.info("function-bad-default-value", "NumericValue");
}
value = new SimpleIntValue(factory, 0);
}
}
return value;
}
/**
* Helper method that sets up the contexts and creates and sets an expression context into the
* environment context.
*
* @return the MarinerPageContext
*/
protected TestMarinerPageContext createContexts() throws Exception {
TestMarinerPageContext pageContext = new TestMarinerPageContext();
pageContext.setVolantis(volantis);
TestEnvironmentContext envContext = new TestEnvironmentContext();
DefaultDevice dev = new DefaultDevice(null, null, null);
dev.setName("myDevice");
dev.setPolicyValue("protocol", "XHTMLBasic");
MarinerSessionContext session = envContext.getSessionContext();
InternalDevice internalDevice = INTERNAL_DEVICE_FACTORY.createInternalDevice(dev);
session.setDevice(internalDevice);
pageContext.setDevice(session.getDevice());
// Create an expression context for the environment context.
final ExpressionFactory factory = ExpressionFactory.getDefaultInstance();
final EnvironmentInteractionTracker simpleTracker = new SimpleEnvironmentInteractionTracker();
final ExpressionContext exprContext =
factory.createExpressionContext(simpleTracker, new DefaultNamespacePrefixTracker());
// Associate the expression context with the environment context.
envContext.setExpressionContext(exprContext);
// Create the initial request context.
MarinerRequestContext requestContext = createInitialRequestContext(envContext);
ApplicationContext appContext = new ApplicationContext(requestContext);
appContext.setEncodingManager(encodingManager);
pageContext.pushRequestContext(requestContext);
ContextInternals.setEnvironmentContext(requestContext, envContext);
ContextInternals.setMarinerPageContext(requestContext, pageContext);
ContextInternals.setApplicationContext(requestContext, appContext);
return pageContext;
}