static {
if (ClassUtils.niceForName("org.richfaces.component.UISuggestionBox") != null) {
VERSION_SPECIFIC_WIDGET_BUILDER = new RichFaces3Support();
} else {
VERSION_SPECIFIC_WIDGET_BUILDER = new RichFaces4Support();
}
}
public UIComponent buildWidget(
String elementName, Map<String, String> attributes, UIMetawidget metawidget) {
// Not for Tomahawk?
if (TRUE.equals(attributes.get(HIDDEN))) {
return null;
}
if (attributes.containsKey(FACES_LOOKUP) || attributes.containsKey(LOOKUP)) {
return null;
}
Application application = FacesContext.getCurrentInstance().getApplication();
String type = WidgetBuilderUtils.getActualClassOrType(attributes);
if (type == null) {
return null;
}
Class<?> clazz = ClassUtils.niceForName(type);
if (clazz == null) {
return null;
}
// HtmlInputFileUpload
if (UploadedFile.class.isAssignableFrom(clazz)) {
return application.createComponent("org.apache.myfaces.HtmlInputFileUpload");
}
// Not for Tomahawk
return null;
}
@Override
public StaticJavaWidget buildWidget(
String elementName, Map<String, String> attributes, StaticJavaMetawidget metawidget) {
// Drill down
if (ENTITY.equals(elementName)) {
return null;
}
// Suppress
if (TRUE.equals(attributes.get(HIDDEN))) {
return new StaticJavaStub();
}
String type = WidgetBuilderUtils.getActualClassOrType(attributes);
Class<?> clazz = ClassUtils.niceForName(type);
String name = attributes.get(NAME);
// String
if (String.class.equals(clazz)) {
StaticJavaStub toReturn = new StaticJavaStub();
toReturn
.getChildren()
.add(
new JavaStatement(
"String " + name + " = this.search.get" + StringUtils.capitalize(name) + "()"));
JavaStatement ifNotEmpty =
new JavaStatement("if (" + name + " != null && !\"\".equals(" + name + "))");
ifNotEmpty
.getChildren()
.add(
new JavaStatement(
"predicatesList.add(builder.like(root.<String>get(\""
+ name
+ "\"), '%' + "
+ name
+ " + '%'))"));
toReturn.getChildren().add(ifNotEmpty);
return toReturn;
}
// int
if (int.class.equals(clazz)) {
StaticJavaStub toReturn = new StaticJavaStub();
toReturn
.getChildren()
.add(
new JavaStatement(
"int " + name + " = this.search.get" + StringUtils.capitalize(name) + "()"));
JavaStatement ifNotEmpty = new JavaStatement("if (" + name + " != 0)");
ifNotEmpty
.getChildren()
.add(
new JavaStatement(
"predicatesList.add(builder.equal(root.get(\"" + name + "\")," + name + "))"));
toReturn.getChildren().add(ifNotEmpty);
return toReturn;
}
// Lookup
if (attributes.containsKey(FACES_LOOKUP)) {
StaticJavaStub toReturn = new StaticJavaStub();
JavaStatement getValue =
new JavaStatement(
ClassUtils.getSimpleName(type)
+ " "
+ name
+ " = this.search.get"
+ StringUtils.capitalize(name)
+ "()");
getValue.putImport(type);
toReturn.getChildren().add(getValue);
JavaStatement ifNotEmpty =
new JavaStatement("if (" + name + " != null && " + name + ".getId() != null)");
ifNotEmpty
.getChildren()
.add(
new JavaStatement(
"predicatesList.add(builder.equal(root.get(\"" + name + "\")," + name + "))"));
toReturn.getChildren().add(ifNotEmpty);
return toReturn;
}
// We tried searching against N_TO_MANY relationships, but had the following problems:
//
// 1. Difficult to make JPA Criteria Builder search for 'a Set having all of the following
// items'. For 'a Set
// having the following item' can do:
// predicatesList.add(root.join("customers").in(this.search.getCustomer()));
// 2. Cumbersome to have a new class for this.search that only has a single Customer, as opposed
// to a Set
// 3. Difficult to make JSF's h:selectOne* bind to a Set
// 4. Difficult to make JSF's h:selectMany* appear as a single item dropdown
//
// So we've left it out for now
return new StaticJavaStub();
}
public Converter getConverter(ValueHolder valueHolder, Map<String, String> attributes) {
// Use existing Converter (if any)
Converter converter = valueHolder.getConverter();
if (converter != null) {
return converter;
}
// Create from id
FacesContext context = FacesContext.getCurrentInstance();
String converterId = attributes.get(FACES_CONVERTER);
if (converterId != null) {
converter = context.getApplication().createConverter(converterId);
} else if (valueHolder instanceof UISelectOne || valueHolder instanceof UISelectMany) {
// Create from parameterized type (eg. a Date converter for List<Date>)
String parameterizedType = WidgetBuilderUtils.getComponentType(attributes);
if (parameterizedType != null) {
Class<?> parameterizedClass = ClassUtils.niceForName(parameterizedType);
// The parameterized type might be null, or might not be concrete
// enough to be instantiatable (eg. List<? extends Foo>)
if (parameterizedClass != null) {
converter = context.getApplication().createConverter(parameterizedClass);
}
}
} else {
// Create implicit converters
//
// JSF does not appear to implicitly hook up DateTimeConverters without either an
// explicit f:convertDateTime tag or a registered java.util.Date converter. Adding one
// fixes both POSTback and display of read-only dates (otherwise JSF uses Date.toString)
//
// JSF *does* appear to implicitly hook up NumberConverters.
String type = attributes.get(TYPE);
if (type != null) {
Class<?> clazz = ClassUtils.niceForName(type);
if (clazz != null) {
if (clazz.isAssignableFrom(Date.class)) {
converter = getDateTimeConverter(converter);
}
}
}
}
// Support for DateTimeConverter
if (attributes.containsKey(DATE_STYLE)) {
converter = getDateTimeConverter(converter);
((DateTimeConverter) converter).setDateStyle(attributes.get(DATE_STYLE));
}
if (attributes.containsKey(DATETIME_PATTERN)) {
converter = getDateTimeConverter(converter);
((DateTimeConverter) converter).setPattern(attributes.get(DATETIME_PATTERN));
}
if (attributes.containsKey(TIME_STYLE)) {
converter = getDateTimeConverter(converter);
((DateTimeConverter) converter).setTimeStyle(attributes.get(TIME_STYLE));
}
if (attributes.containsKey(TIME_ZONE)) {
converter = getDateTimeConverter(converter);
((DateTimeConverter) converter).setTimeZone(TimeZone.getTimeZone(attributes.get(TIME_ZONE)));
}
if (attributes.containsKey(DATETIME_TYPE)) {
converter = getDateTimeConverter(converter);
((DateTimeConverter) converter).setType(attributes.get(DATETIME_TYPE));
}
// Support for NumberConverter
if (attributes.containsKey(CURRENCY_CODE)) {
converter = getNumberConverter(converter);
((NumberConverter) converter).setCurrencyCode(attributes.get(CURRENCY_CODE));
}
if (attributes.containsKey(CURRENCY_SYMBOL)) {
converter = getNumberConverter(converter);
((NumberConverter) converter).setCurrencySymbol(attributes.get(CURRENCY_SYMBOL));
}
if (attributes.containsKey(NUMBER_USES_GROUPING_SEPARATORS)) {
converter = getNumberConverter(converter);
((NumberConverter) converter)
.setGroupingUsed(Boolean.parseBoolean(attributes.get(NUMBER_USES_GROUPING_SEPARATORS)));
}
if (attributes.containsKey(MINIMUM_INTEGER_DIGITS)) {
converter = getNumberConverter(converter);
((NumberConverter) converter)
.setMinIntegerDigits(Integer.parseInt(attributes.get(MINIMUM_INTEGER_DIGITS)));
}
if (attributes.containsKey(MAXIMUM_INTEGER_DIGITS)) {
converter = getNumberConverter(converter);
((NumberConverter) converter)
.setMaxIntegerDigits(Integer.parseInt(attributes.get(MAXIMUM_INTEGER_DIGITS)));
}
if (attributes.containsKey(MINIMUM_FRACTIONAL_DIGITS)) {
converter = getNumberConverter(converter);
((NumberConverter) converter)
.setMinFractionDigits(Integer.parseInt(attributes.get(MINIMUM_FRACTIONAL_DIGITS)));
}
if (attributes.containsKey(MAXIMUM_FRACTIONAL_DIGITS)) {
converter = getNumberConverter(converter);
((NumberConverter) converter)
.setMaxFractionDigits(Integer.parseInt(attributes.get(MAXIMUM_FRACTIONAL_DIGITS)));
}
if (attributes.containsKey(NUMBER_PATTERN)) {
converter = getNumberConverter(converter);
((NumberConverter) converter).setPattern(attributes.get(NUMBER_PATTERN));
}
if (attributes.containsKey(NUMBER_TYPE)) {
converter = getNumberConverter(converter);
((NumberConverter) converter).setType(attributes.get(NUMBER_TYPE));
}
// Locale (applies to both DateTimeConverter and NumberConverter)
if (attributes.containsKey(LOCALE)) {
if (converter instanceof NumberConverter) {
((NumberConverter) converter).setLocale(new Locale(attributes.get(LOCALE)));
} else {
converter = getDateTimeConverter(converter);
((DateTimeConverter) converter).setLocale(new Locale(attributes.get(LOCALE)));
}
}
// Return it
return converter;
}