/**
* * @see com.sun.facelets.FaceletHandler#apply(com.sun.facelets.FaceletContext,
* javax.faces.component.UIComponent)
*/
public void apply(FaceletContext ctx, UIComponent parent)
throws IOException, FacesException, FaceletException, ELException {
VariableMapper origVarMap = ctx.getVariableMapper();
try {
VariableMapperWrapper variableMap = new VariableMapperWrapper(origVarMap);
ctx.setVariableMapper(variableMap);
if (methodBindings != null) {
String value = (String) methodBindings.getValue(ctx);
Matcher match = METHOD_PATTERN.matcher(value);
while (match.find()) {
String var = match.group(1);
ValueExpression currentExpression = origVarMap.resolveVariable(var);
if (currentExpression != null) {
try {
FunctionMethodData methodData =
new FunctionMethodData(var, match.group(2).split("\\s+"));
MethodExpression mexpr =
buildMethodExpression(ctx, currentExpression.getExpressionString(), methodData);
variableMap.setVariable(var, new MethodValueExpression(currentExpression, mexpr));
} catch (Exception ex) {
throw new FacesException(ex);
}
}
}
}
componentHandler.apply(ctx, parent);
} finally {
ctx.setVariableMapper(origVarMap);
}
}
private MethodExpression buildMethodExpression(
FaceletContext ctx, String expression, FunctionMethodData methodData)
throws NoSuchMethodException, ClassNotFoundException {
return ctx.getExpressionFactory()
.createMethodExpression(
ctx, expression, methodData.getReturnType(), methodData.getArguments());
}
/** Returns a id unique within the facelet context. */
public String generateUniqueId() {
String id;
TagAttribute idAttr = tagConfig.getTag().getAttributes().get("id");
if (idAttr != null) {
id = idAttr.getValue(context);
} else {
id = context.getFacesContext().getViewRoot().createUniqueId();
}
return generateUniqueId(id);
}
@Override
public void apply(FaceletContext ctx, UIComponent parent)
throws IOException, FacesException, ELException {
boolean b = this.test.getBoolean(ctx);
if (this.var != null) {
ctx.setAttribute(var.getValue(ctx), new Boolean(b));
}
if (b) {
this.nextHandler.apply(ctx, parent);
}
}
/** Returns a id unique within the facelet context using given id as base. */
@SuppressWarnings({"unchecked", "rawtypes"})
public String generateUniqueId(String base) {
Map<String, Object> requestMap = context.getFacesContext().getExternalContext().getRequestMap();
Map<String, Integer> counters = (Map) requestMap.get(LAYOUT_ID_COUNTERS);
if (counters == null) {
counters = new HashMap<String, Integer>();
}
String generatedId;
Integer cnt = counters.get(base);
if (cnt == null) {
counters.put(base, new Integer(0));
generatedId = base;
} else {
int i = cnt.intValue() + 1;
counters.put(base, new Integer(i));
generatedId = base + "_" + i;
}
requestMap.put(LAYOUT_ID_COUNTERS, counters);
return generatedId;
}
protected Validator createValidator(FaceletContext faceletsContext) {
FacesContext facesContext = faceletsContext.getFacesContext();
Application application = facesContext.getApplication();
return application.createValidator(getValidatorId());
}
