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package com.sun.faces.application.annotation;
import java.lang.annotation.Annotation;
import java.util.Collection;
import java.util.Collections;
import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;
import javax.faces.context.FacesContext;
import javax.faces.application.Application;
import javax.faces.validator.FacesValidator;
/**
* <p>
* <code>ConfigAnnotationHandler</code> for {@link FacesValidator} annotated
* classes.
* </p>
*/
public class ValidatorConfigHandler implements ConfigAnnotationHandler {
private static final Collection<Class<? extends Annotation>> HANDLES;
static {
Collection<Class<? extends Annotation>> handles =
new ArrayList<Class<? extends Annotation>>(1);
handles.add(FacesValidator.class);
HANDLES = Collections.unmodifiableCollection(handles);
}
private Map<ValidatorInfo,String> validators;
// ------------------------------------- Methods from ComponentConfigHandler
/**
* @see com.sun.faces.application.annotation.ConfigAnnotationHandler#getHandledAnnotations()
*/
public Collection<Class<? extends Annotation>> getHandledAnnotations() {
return HANDLES;
}
/**
* @see com.sun.faces.application.annotation.ConfigAnnotationHandler#collect(Class, java.lang.annotation.Annotation)
*/
public void collect(Class<?> target, Annotation annotation) {
if (validators == null) {
validators = new HashMap<ValidatorInfo,String>();
}
FacesValidator validatorAnnotation = (FacesValidator) annotation;
ValidatorInfo info = new ValidatorInfo(validatorAnnotation.value(), validatorAnnotation.isDefault());
validators.put(info, target.getName());
}
/**
* @see com.sun.faces.application.annotation.ConfigAnnotationHandler#push(javax.faces.context.FacesContext)
*/
public void push(FacesContext ctx) {
if (validators != null) {
Application app = ctx.getApplication();
for (Map.Entry<ValidatorInfo,String> entry : validators.entrySet()) {
app.addValidator(entry.getKey().validatorId, entry.getValue());
if (entry.getKey().isDefault) {
app.addDefaultValidatorId(entry.getKey().validatorId);
}
}
}
}
// ---------------------------------------------------------- Nested Classes
private static class ValidatorInfo {
final String validatorId;
final boolean isDefault;
ValidatorInfo(String validatorId, boolean isDefault) {
this.validatorId = validatorId;
this.isDefault = isDefault;
}
}
}