public void apply(FaceletContext ctx, UIComponent parent) throws IOException {
// only process if it's been created
if (null == parent
|| (null == (parent = parent.getParent()))
|| !(ComponentHandler.isNew(parent))) {
return;
}
Map<String, Object> attrs = parent.getAttributes();
CompositeComponentBeanInfo componentBeanInfo =
(CompositeComponentBeanInfo) attrs.get(UIComponent.BEANINFO_KEY);
assert (null != componentBeanInfo);
List<PropertyDescriptor> declaredAttributes = componentBeanInfo.getPropertyDescriptorsList();
// Get the value of required the name propertyDescriptor
ValueExpression ve = name.getValueExpression(ctx, String.class);
String strValue = (String) ve.getValue(ctx);
// Search the propertyDescriptors for one for this attribute
for (PropertyDescriptor cur : declaredAttributes) {
if (strValue.endsWith(cur.getName())) {
// If we have a match, no need to waste time
// duplicating and replacing it.
return;
}
}
PropertyDescriptor propertyDescriptor;
try {
propertyDescriptor = new PropertyDescriptor(strValue, null, null);
declaredAttributes.add(propertyDescriptor);
} catch (IntrospectionException ex) {
throw new TagException(
tag, "Unable to create property descriptor for property " + strValue, ex);
}
for (TagAttribute tagAttribute : this.tag.getAttributes().getAll()) {
String attributeName = tagAttribute.getLocalName();
PropertyHandler handler = ATTRIBUTE_MANAGER.getHandler(ctx, attributeName);
if (handler != null) {
handler.apply(ctx, attributeName, propertyDescriptor, tagAttribute);
}
}
this.nextHandler.apply(ctx, parent);
}
public class AttributeHandler extends TagHandlerImpl {
private final Logger LOGGER = FacesLogger.TAGLIB.getLogger();
private static final String[] COMPOSITE_ATTRIBUTE_ATTRIBUTES = {
"required",
"targets",
"targetAttributeName",
"default",
"displayName",
"preferred",
"hidden",
"expert",
"shortDescription",
"method-signature",
"type",
};
private static final PropertyHandlerManager ATTRIBUTE_MANAGER =
PropertyHandlerManager.getInstance(COMPOSITE_ATTRIBUTE_ATTRIBUTES);
private TagAttribute name;
public AttributeHandler(TagConfig config) {
super(config);
this.name = this.getRequiredAttribute("name");
}
public void apply(FaceletContext ctx, UIComponent parent) throws IOException {
// only process if it's been created
if (null == parent
|| (null == (parent = parent.getParent()))
|| !(ComponentHandler.isNew(parent))) {
return;
}
Map<String, Object> attrs = parent.getAttributes();
CompositeComponentBeanInfo componentBeanInfo =
(CompositeComponentBeanInfo) attrs.get(UIComponent.BEANINFO_KEY);
assert (null != componentBeanInfo);
List<PropertyDescriptor> declaredAttributes = componentBeanInfo.getPropertyDescriptorsList();
// Get the value of required the name propertyDescriptor
ValueExpression ve = name.getValueExpression(ctx, String.class);
String strValue = (String) ve.getValue(ctx);
// Search the propertyDescriptors for one for this attribute
for (PropertyDescriptor cur : declaredAttributes) {
if (strValue.endsWith(cur.getName())) {
// If we have a match, no need to waste time
// duplicating and replacing it.
return;
}
}
PropertyDescriptor propertyDescriptor;
try {
propertyDescriptor = new CCAttributePropertyDescriptor(strValue, null, null);
declaredAttributes.add(propertyDescriptor);
} catch (IntrospectionException ex) {
throw new TagException(
tag, "Unable to create property descriptor for property " + strValue, ex);
}
TagAttribute defaultTagAttribute = null;
PropertyHandler defaultHandler = null;
for (TagAttribute tagAttribute : this.tag.getAttributes().getAll()) {
String attributeName = tagAttribute.getLocalName();
if ("default".equals(attributeName)) {
// store the TagAttribute and the PropertyHandler for later
// execution, as the handler for the default-attribute requires,
// that the PropertyHandler for 'type' - if it exists - has been
// applied first.
defaultTagAttribute = tagAttribute;
defaultHandler = ATTRIBUTE_MANAGER.getHandler(ctx, "default");
} else {
PropertyHandler handler = ATTRIBUTE_MANAGER.getHandler(ctx, attributeName);
if (handler != null) {
handler.apply(ctx, attributeName, propertyDescriptor, tagAttribute);
}
}
}
if (defaultHandler != null) {
// If the 'default'-attribute of cc:attribute was set, apply the
// previously stored PropertyHandler (see above) now, as now it is
// guaranteed that if a 'type'-attribute existed, that its handler
// was already applied
try {
defaultHandler.apply(ctx, "default", propertyDescriptor, defaultTagAttribute);
} catch (IllegalArgumentException ex) {
// If the type (according to the type-attribute) can not be
// found, the DefaultPropertyHandler will wrapp the
// ClassNotFoundException into an IllegalArgumentException,
// which is unwrapped into a TagException here.
throw new TagException(
tag, "'type' could not be resolved: " + ex.getCause(), ex.getCause());
}
}
this.nextHandler.apply(ctx, parent);
}
private class CCAttributePropertyDescriptor extends PropertyDescriptor {
public CCAttributePropertyDescriptor(String propertyName, Method readMethod, Method writeMethod)
throws IntrospectionException {
super(propertyName, readMethod, writeMethod);
}
@Override
public Object getValue(String attributeName) {
Object result = super.getValue(attributeName);
if ("type".equals(attributeName)) {
if ((null != result) && !(result instanceof Class)) {
FacesContext context = FacesContext.getCurrentInstance();
ELContext elContext = context.getELContext();
String classStr = (String) ((ValueExpression) result).getValue(elContext);
if (null != classStr) {
try {
result = ReflectionUtil.forName(classStr);
this.setValue(attributeName, result);
} catch (ClassNotFoundException ex) {
classStr = "java.lang." + classStr;
boolean throwException = false;
try {
result = ReflectionUtil.forName(classStr);
this.setValue(attributeName, result);
} catch (ClassNotFoundException ex2) {
throwException = true;
}
if (throwException) {
String message = "Unable to obtain class for " + classStr;
if (LOGGER.isLoggable(Level.INFO)) {
LOGGER.log(Level.INFO, message, ex);
}
throw new TagAttributeException(tag, name, message, ex);
}
}
}
}
}
return result;
}
}
}
public class AttributeHandler extends TagHandlerImpl {
private static final String[] COMPOSITE_ATTRIBUTE_ATTRIBUTES = {
"required",
"targets",
"default",
"displayName",
"preferred",
"hidden",
"expert",
"shortDescription",
"method-signature",
"type",
};
private static final PropertyHandlerManager ATTRIBUTE_MANAGER =
PropertyHandlerManager.getInstance(COMPOSITE_ATTRIBUTE_ATTRIBUTES);
private TagAttribute name;
public AttributeHandler(TagConfig config) {
super(config);
this.name = this.getRequiredAttribute("name");
}
public void apply(FaceletContext ctx, UIComponent parent) throws IOException {
// only process if it's been created
if (null == parent
|| (null == (parent = parent.getParent()))
|| !(ComponentHandler.isNew(parent))) {
return;
}
Map<String, Object> attrs = parent.getAttributes();
CompositeComponentBeanInfo componentBeanInfo =
(CompositeComponentBeanInfo) attrs.get(UIComponent.BEANINFO_KEY);
assert (null != componentBeanInfo);
List<PropertyDescriptor> declaredAttributes = componentBeanInfo.getPropertyDescriptorsList();
// Get the value of required the name propertyDescriptor
ValueExpression ve = name.getValueExpression(ctx, String.class);
String strValue = (String) ve.getValue(ctx);
// Search the propertyDescriptors for one for this attribute
for (PropertyDescriptor cur : declaredAttributes) {
if (strValue.endsWith(cur.getName())) {
// If we have a match, no need to waste time
// duplicating and replacing it.
return;
}
}
PropertyDescriptor propertyDescriptor;
try {
propertyDescriptor = new PropertyDescriptor(strValue, null, null);
declaredAttributes.add(propertyDescriptor);
} catch (IntrospectionException ex) {
throw new TagException(
tag, "Unable to create property descriptor for property " + strValue, ex);
}
for (TagAttribute tagAttribute : this.tag.getAttributes().getAll()) {
String attributeName = tagAttribute.getLocalName();
PropertyHandler handler = ATTRIBUTE_MANAGER.getHandler(ctx, attributeName);
if (handler != null) {
handler.apply(ctx, attributeName, propertyDescriptor, tagAttribute);
}
}
this.nextHandler.apply(ctx, parent);
}
}
public void apply(FaceletContext ctx, UIComponent parent) throws IOException {
// only process if it's been created
if (null == parent
|| (null == (parent = parent.getParent()))
|| !(ComponentHandler.isNew(parent))) {
return;
}
Map<String, Object> attrs = parent.getAttributes();
CompositeComponentBeanInfo componentBeanInfo =
(CompositeComponentBeanInfo) attrs.get(UIComponent.BEANINFO_KEY);
assert (null != componentBeanInfo);
List<PropertyDescriptor> declaredAttributes = componentBeanInfo.getPropertyDescriptorsList();
// Get the value of required the name propertyDescriptor
ValueExpression ve = name.getValueExpression(ctx, String.class);
String strValue = (String) ve.getValue(ctx);
// Search the propertyDescriptors for one for this attribute
for (PropertyDescriptor cur : declaredAttributes) {
if (strValue.endsWith(cur.getName())) {
// If we have a match, no need to waste time
// duplicating and replacing it.
return;
}
}
PropertyDescriptor propertyDescriptor;
try {
propertyDescriptor = new CCAttributePropertyDescriptor(strValue, null, null);
declaredAttributes.add(propertyDescriptor);
} catch (IntrospectionException ex) {
throw new TagException(
tag, "Unable to create property descriptor for property " + strValue, ex);
}
TagAttribute defaultTagAttribute = null;
PropertyHandler defaultHandler = null;
for (TagAttribute tagAttribute : this.tag.getAttributes().getAll()) {
String attributeName = tagAttribute.getLocalName();
if ("default".equals(attributeName)) {
// store the TagAttribute and the PropertyHandler for later
// execution, as the handler for the default-attribute requires,
// that the PropertyHandler for 'type' - if it exists - has been
// applied first.
defaultTagAttribute = tagAttribute;
defaultHandler = ATTRIBUTE_MANAGER.getHandler(ctx, "default");
} else {
PropertyHandler handler = ATTRIBUTE_MANAGER.getHandler(ctx, attributeName);
if (handler != null) {
handler.apply(ctx, attributeName, propertyDescriptor, tagAttribute);
}
}
}
if (defaultHandler != null) {
// If the 'default'-attribute of cc:attribute was set, apply the
// previously stored PropertyHandler (see above) now, as now it is
// guaranteed that if a 'type'-attribute existed, that its handler
// was already applied
try {
defaultHandler.apply(ctx, "default", propertyDescriptor, defaultTagAttribute);
} catch (IllegalArgumentException ex) {
// If the type (according to the type-attribute) can not be
// found, the DefaultPropertyHandler will wrapp the
// ClassNotFoundException into an IllegalArgumentException,
// which is unwrapped into a TagException here.
throw new TagException(
tag, "'type' could not be resolved: " + ex.getCause(), ex.getCause());
}
}
this.nextHandler.apply(ctx, parent);
}
