@SuppressWarnings("unchecked")
public static void renderPassThruAttributes(
FacesContext context,
ResponseWriter writer,
UIComponent component,
Attribute[] attributes,
Map<String, List<ClientBehavior>> behaviors)
throws IOException {
if (behaviors == null) {
behaviors = Collections.emptyMap();
}
if ((behaviors.size() < 2)) {
List<String> setAttributes =
(List<String>) component.getAttributes().get(ATTRIBUTES_THAT_ARE_SET_KEY);
if (setAttributes != null) {
renderPassThruAttributesOptimized(
context, writer, component, attributes, setAttributes, behaviors);
}
} else {
renderPassThruAttributesUnoptimized(context, writer, component, attributes, behaviors);
}
List<String> html5PassThru =
(List<String>) component.getAttributes().get(HTML5DataRule.HTML5DATAATTRIBUTES);
if (html5PassThru != null) {
for (String attribute : html5PassThru) {
String value;
if (component.getValueExpression(attribute) != null) {
Object valueObject =
component.getValueExpression(attribute).getValue(context.getELContext());
value = valueObject != null ? valueObject.toString() : null;
} else {
value = (String) component.getAttributes().get(attribute);
}
if (value != null) {
writer.writeAttribute(attribute, value, null);
}
}
}
}
private void doSetBindings(ELContext elContext, UIComponent component) {
if (component == null) return;
ValueExpression binding = component.getValueExpression("binding");
if (binding != null) binding.setValue(elContext, component);
Iterator<UIComponent> iter = component.getFacetsAndChildren();
while (iter.hasNext()) doSetBindings(elContext, iter.next());
}
protected Converter findImplicitConverter(FacesContext context, UIComponent component) {
ValueExpression ve = component.getValueExpression("value");
if (ve != null) {
Class<?> valueType = ve.getType(context.getELContext());
if (valueType != null) return context.getApplication().createConverter(valueType);
}
return null;
}
/**
* Docs
*
* @param key
* @param defaultValue value to return if key is not present in main or delta-map
* @return value - if null, defaultValue
*/
public Object eval(Serializable key, Object defaultValue) {
Object retVal = get(key);
if (retVal == null) {
ValueExpression ve = component.getValueExpression(key.toString());
if (ve != null) {
retVal = ve.getValue(component.getFacesContext().getELContext());
}
}
return ((retVal != null) ? retVal : defaultValue);
}
/**
* Algorithm works as follows; - If it's an input component, submitted value is checked first
* since it'd be the value to be used in case validation errors terminates jsf lifecycle - Finally
* the value of the component is retrieved from backing bean and if there's a converter, converted
* value is returned
*
* <p>- If the component is not a value holder, toString of component is used to support Facelets
* UIInstructions.
*
* @param facesContext FacesContext instance
* @param component UIComponent instance whose value will be returned
* @return End text
*/
public static String getStringValueToRender(FacesContext facesContext, UIComponent component) {
if (component instanceof ValueHolder) {
if (component instanceof EditableValueHolder) {
Object submittedValue = ((EditableValueHolder) component).getSubmittedValue();
if (submittedValue != null) {
return submittedValue.toString();
}
}
ValueHolder valueHolder = (ValueHolder) component;
Object value = valueHolder.getValue();
if (value == null) return "";
// first ask the converter
if (valueHolder.getConverter() != null) {
return valueHolder.getConverter().getAsString(facesContext, component, value);
}
// Try to guess
else {
ValueExpression expr = component.getValueExpression("value");
if (expr != null) {
Class<?> valueType = expr.getType(facesContext.getELContext());
if (valueType != null) {
Converter converterForType = facesContext.getApplication().createConverter(valueType);
if (converterForType != null)
return converterForType.getAsString(facesContext, component, value);
}
}
}
// No converter found just return the value as string
return value.toString();
} else {
// This would get the plain texts on UIInstructions when using Facelets
String value = component.toString();
if (value != null) return value.trim();
else return "";
}
}
/**
* Resolves the end text to render by using a specified value
*
* @param facesContext FacesContext instance
* @param component UIComponent instance whose value will be returned
* @return End text
*/
public static String getStringValueToRender(
FacesContext facesContext, UIComponent component, Object value) {
if (value == null) return null;
ValueHolder valueHolder = (ValueHolder) component;
Converter converter = valueHolder.getConverter();
if (converter != null) {
return converter.getAsString(facesContext, component, value);
} else {
ValueExpression expr = component.getValueExpression("value");
if (expr != null) {
Class<?> valueType = expr.getType(facesContext.getELContext());
Converter converterForType = facesContext.getApplication().createConverter(valueType);
if (converterForType != null)
return converterForType.getAsString(facesContext, component, value);
}
}
return value.toString();
}
private void printComponentTree(
PrintWriter out, String errorId, FacesContext context, UIComponent comp, int depth) {
for (int i = 0; i < depth; i++) out.print(' ');
boolean isError = false;
if (errorId != null && errorId.equals(comp.getClientId(context))) {
isError = true;
out.print("<span style='color:red'>");
}
out.print("<" + comp.getClass().getSimpleName());
if (comp.getId() != null) out.print(" id=\"" + comp.getId() + "\"");
for (Method method : comp.getClass().getMethods()) {
if (!method.getName().startsWith("get") && !method.getName().startsWith("is")) continue;
else if (method.getParameterTypes().length != 0) continue;
String name;
if (method.getName().startsWith("get")) name = method.getName().substring(3);
else if (method.getName().startsWith("is")) name = method.getName().substring(2);
else continue;
// XXX: getURL
name = Character.toLowerCase(name.charAt(0)) + name.substring(1);
ValueExpression expr = comp.getValueExpression(name);
Class type = method.getReturnType();
if (expr != null) {
out.print(" " + name + "=\"" + expr.getExpressionString() + "\"");
} else if (method.getDeclaringClass().equals(UIComponent.class)
|| method.getDeclaringClass().equals(UIComponentBase.class)) {
} else if (name.equals("family")) {
} else if (String.class.equals(type)) {
try {
Object value = method.invoke(comp);
if (value != null) out.print(" " + name + "=\"" + value + "\"");
} catch (Exception e) {
}
}
}
int facetCount = comp.getFacetCount();
int childCount = comp.getChildCount();
if (facetCount == 0 && childCount == 0) {
out.print("/>");
if (isError) out.print("</span>");
out.println();
return;
}
out.println(">");
if (isError) out.print("</span>");
for (int i = 0; i < childCount; i++) {
printComponentTree(out, errorId, context, comp.getChildren().get(i), depth + 1);
}
for (int i = 0; i < depth; i++) out.print(' ');
if (isError) out.print("<span style='color:red'>");
out.println("</" + comp.getClass().getSimpleName() + ">");
if (isError) out.print("</span>");
}