/**
* 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 "";
}
}
protected void setProperties(UIComponent component) {
super.setProperties(component);
javax.faces.component.UISelectOne selectone = null;
try {
selectone = (javax.faces.component.UISelectOne) component;
} catch (ClassCastException cce) {
throw new IllegalStateException(
"Component "
+ component.toString()
+ " not expected type. Expected: javax.faces.component.UISelectOne. Perhaps you're missing a tag?");
}
if (converter != null) {
if (!converter.isLiteralText()) {
selectone.setValueExpression("converter", converter);
} else {
Converter conv =
FacesContext.getCurrentInstance()
.getApplication()
.createConverter(converter.getExpressionString());
selectone.setConverter(conv);
}
}
if (converterMessage != null) {
selectone.setValueExpression("converterMessage", converterMessage);
}
if (immediate != null) {
selectone.setValueExpression("immediate", immediate);
}
if (required != null) {
selectone.setValueExpression("required", required);
}
if (requiredMessage != null) {
selectone.setValueExpression("requiredMessage", requiredMessage);
}
if (validator != null) {
selectone.addValidator(new MethodExpressionValidator(validator));
}
if (validatorMessage != null) {
selectone.setValueExpression("validatorMessage", validatorMessage);
}
if (value != null) {
selectone.setValueExpression("value", value);
}
if (valueChangeListener != null) {
selectone.addValueChangeListener(
new MethodExpressionValueChangeListener(valueChangeListener));
}
if (accesskey != null) {
selectone.setValueExpression("accesskey", accesskey);
}
if (dir != null) {
selectone.setValueExpression("dir", dir);
}
if (disabled != null) {
selectone.setValueExpression("disabled", disabled);
}
if (disabledClass != null) {
selectone.setValueExpression("disabledClass", disabledClass);
}
if (enabledClass != null) {
selectone.setValueExpression("enabledClass", enabledClass);
}
if (label != null) {
selectone.setValueExpression("label", label);
}
if (lang != null) {
selectone.setValueExpression("lang", lang);
}
if (onblur != null) {
selectone.setValueExpression("onblur", onblur);
}
if (onchange != null) {
selectone.setValueExpression("onchange", onchange);
}
if (onclick != null) {
selectone.setValueExpression("onclick", onclick);
}
if (ondblclick != null) {
selectone.setValueExpression("ondblclick", ondblclick);
}
if (onfocus != null) {
selectone.setValueExpression("onfocus", onfocus);
}
if (onkeydown != null) {
selectone.setValueExpression("onkeydown", onkeydown);
}
if (onkeypress != null) {
selectone.setValueExpression("onkeypress", onkeypress);
}
if (onkeyup != null) {
selectone.setValueExpression("onkeyup", onkeyup);
}
if (onmousedown != null) {
selectone.setValueExpression("onmousedown", onmousedown);
}
if (onmousemove != null) {
selectone.setValueExpression("onmousemove", onmousemove);
}
if (onmouseout != null) {
selectone.setValueExpression("onmouseout", onmouseout);
}
if (onmouseover != null) {
selectone.setValueExpression("onmouseover", onmouseover);
}
if (onmouseup != null) {
selectone.setValueExpression("onmouseup", onmouseup);
}
if (onselect != null) {
selectone.setValueExpression("onselect", onselect);
}
if (readonly != null) {
selectone.setValueExpression("readonly", readonly);
}
if (style != null) {
selectone.setValueExpression("style", style);
}
if (styleClass != null) {
selectone.setValueExpression("styleClass", styleClass);
}
if (tabindex != null) {
selectone.setValueExpression("tabindex", tabindex);
}
if (title != null) {
selectone.setValueExpression("title", title);
}
}