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RePlay is a fork of the Play1 framework, created by Codeborne.
package play.data.validation;
import net.sf.oval.configuration.annotation.AbstractAnnotationCheck;
import play.exceptions.UnexpectedException;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.util.*;
import java.util.regex.Pattern;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
public class Validation {
public static final ThreadLocal current = new ThreadLocal<>();
List errors = new ArrayList<>();
boolean keep;
protected Validation() {
}
/**
* @return The current validation helper
*/
public static Validation current() {
return current.get();
}
/**
* @return The list of all errors
*/
@SuppressWarnings({"unused"})
public static List errors() {
Validation validation = current.get();
if (validation == null)
return emptyList();
return new ArrayList(validation.errors) {
public Error forKey(String key) {
return Validation.error(key);
}
public List allForKey(String key) {
return Validation.errors(key);
}
};
}
/**
* @return All errors keyed by field name
*/
public Map> errorsMap() {
Map> result = new LinkedHashMap<>();
for (Error error : errors()) {
result.put(error.getKey(), errors(error.getKey()));
}
return result;
}
/**
* Add an error
* @param field Field name
* @param message Message key
* @param variables Message variables
*/
public static void addError(String field, String message, String... variables) {
insertError(Validation.current().errors.size(), field, message, variables);
}
/**
* Insert an error at the specified position in this list.
* @param index index at which the specified element is to be inserted
* @param field Field name
* @param message Message key
* @param variables Message variables
*/
public static void insertError(int index, String field, String message, String... variables) {
Error error = error(field);
if (error == null || !error.getMessageKey().equals(message)) {
Validation.current().errors.add(index, new Error(field, message, asList(variables)));
}
}
/**
* Remove all errors on a field with the given message
* @param field Field name
* @param message Message key
*/
public static void removeErrors(String field, String message) {
Validation validation = current.get();
if (validation != null) {
Iterator it = validation.errors.iterator();
while (it.hasNext()) {
Error error = it.next();
if (error.getKey() != null && error.getKey().equals(field) && error.getMessageKey().equals(message)) {
it.remove();
}
}
}
}
/**
* Remove all errors on a field
* @param field Field name
*/
public static void removeErrors(String field) {
Validation validation = current.get();
if (validation != null) {
validation.errors.removeIf(error -> error.getKey() != null && error.getKey().equals(field));
}
}
/**
* @return True if the current request has errors
*/
public static boolean hasErrors() {
Validation validation = current.get();
return validation != null && !validation.errors.isEmpty();
}
/**
* @param field The field name
* @return true if field has some errors
*/
public static boolean hasErrors(String field){
return error(field) != null;
}
/**
* @param field The field name
* @return First error related to this field
*/
public static Error error(String field) {
Validation validation = current.get();
if (validation == null)
return null;
for (Error error : validation.errors) {
if (error.getKey() != null && error.getKey().equals(field)) {
return error;
}
}
return null;
}
/**
* @param field The field name
* @return All errors related to this field
*/
public static List errors(String field) {
Validation validation = current.get();
if (validation == null)
return emptyList();
List errors = new ArrayList<>();
for (Error error : validation.errors) {
if (error.getKey() != null && error.getKey().equals(field)) {
errors.add(error);
}
}
return errors;
}
/**
* Keep errors for the next request (will be stored in a cookie)
*/
public static void keep() {
current.get().keep = true;
}
/**
* @param field The field name
* @return True is there are errors related to this field
*/
public static boolean hasError(String field) {
return error(field) != null;
}
public static void clear() {
current.get().errors.clear();
if(ValidationPlugin.keys.get() != null){
ValidationPlugin.keys.get().clear();
}
}
// ~~~~ Integration helper
public static Map> getValidators(Class clazz, String name) {
Map> result = new HashMap<>();
searchValidator(clazz, name, result);
return result;
}
public static List getValidators(Class clazz, String property, String name) {
try {
List validators = new ArrayList<>();
while (!clazz.equals(Object.class)) {
try {
Field field = clazz.getDeclaredField(property);
for (Annotation annotation : field.getDeclaredAnnotations()) {
if (annotation.annotationType().getName().startsWith("play.data.validation")) {
Validator validator = new Validator(annotation);
validators.add(validator);
if (annotation.annotationType().equals(InFuture.class)) {
validator.params.put("reference", ((InFuture) annotation).value());
}
if (annotation.annotationType().equals(InPast.class)) {
validator.params.put("reference", ((InPast) annotation).value());
}
}
}
break;
} catch (NoSuchFieldException e) {
clazz = clazz.getSuperclass();
}
}
return validators;
} catch (Exception e) {
return new ArrayList<>();
}
}
static void searchValidator(Class clazz, String name, Map> result) {
for (Field field : clazz.getDeclaredFields()) {
List validators = new ArrayList<>();
String key = name + "." + field.getName();
boolean containsAtValid = false;
for (Annotation annotation : field.getDeclaredAnnotations()) {
if (annotation.annotationType().getName().startsWith("play.data.validation")) {
Validator validator = new Validator(annotation);
validators.add(validator);
if (annotation.annotationType().equals(InFuture.class)) {
validator.params.put("reference", ((InFuture) annotation).value());
}
if (annotation.annotationType().equals(InPast.class)) {
validator.params.put("reference", ((InPast) annotation).value());
}
}
if (annotation.annotationType().equals(Valid.class)) {
containsAtValid = true;
}
}
if (!validators.isEmpty()) {
result.put(key, validators);
}
if (containsAtValid) {
searchValidator(field.getType(), key, result);
}
}
}
public static class Validator {
public Annotation annotation;
public Map params = new HashMap<>();
public Validator(Annotation annotation) {
this.annotation = annotation;
}
}
public static class ValidationResult {
public boolean ok;
public Error error;
public ValidationResult message(String message) {
if (error != null) {
error = new Error(message, error.getKey(), error.getVariables());
}
return this;
}
public ValidationResult key(String key) {
if (error != null) {
error = new Error(error.getMessageKey(), key, error.getVariables());
}
return this;
}
}
public static ValidationResult required(String key, Object o) {
RequiredCheck check = new RequiredCheck();
return applyCheck(check, key, o);
}
public static ValidationResult min(String key, Object o, double min) {
MinCheck check = new MinCheck();
check.min = min;
return applyCheck(check, key, o);
}
public static ValidationResult max(String key, Object o, double max) {
MaxCheck check = new MaxCheck();
check.max = max;
return applyCheck(check, key, o);
}
public static ValidationResult future(String key, Object o, Date reference) {
InFutureCheck check = new InFutureCheck();
check.reference = reference;
return applyCheck(check, key, o);
}
public static ValidationResult future(String key, Object o) {
InFutureCheck check = new InFutureCheck();
check.reference = new Date();
return applyCheck(check, key, o);
}
public static ValidationResult past(String key, Object o, Date reference) {
InPastCheck check = new InPastCheck();
check.reference = reference;
return applyCheck(check, key, o);
}
public static ValidationResult past(String key, Object o) {
InPastCheck check = new InPastCheck();
check.reference = new Date();
return applyCheck(check, key, o);
}
public static ValidationResult match(String key, Object o, String pattern) {
MatchCheck check = new MatchCheck();
check.pattern = Pattern.compile(pattern);
return applyCheck(check, key, o);
}
public static ValidationResult email(String key, Object o) {
EmailCheck check = new EmailCheck();
return applyCheck(check, key, o);
}
public static ValidationResult url(String key, Object o) {
URLCheck check = new URLCheck();
return applyCheck(check, key, o);
}
public static ValidationResult phone(String key, Object o) {
PhoneCheck check = new PhoneCheck();
return applyCheck(check, key, o);
}
public static ValidationResult ipv4Address(String key, Object o) {
IPv4AddressCheck check = new IPv4AddressCheck();
return applyCheck(check, key, o);
}
public static ValidationResult ipv6Address(String key, Object o) {
IPv6AddressCheck check = new IPv6AddressCheck();
return applyCheck(check, key, o);
}
public static ValidationResult isTrue(String key, Object o) {
IsTrueCheck check = new IsTrueCheck();
return applyCheck(check, key, o);
}
public static ValidationResult range(String key, Object o, double min, double max) {
RangeCheck check = new RangeCheck();
check.min = min;
check.max = max;
return applyCheck(check, key, o);
}
public static ValidationResult minSize(String key, Object o, int minSize) {
MinSizeCheck check = new MinSizeCheck();
check.minSize = minSize;
return applyCheck(check, key, o);
}
public static ValidationResult maxSize(String key, Object o, int maxSize) {
MaxSizeCheck check = new MaxSizeCheck();
check.maxSize = maxSize;
return applyCheck(check, key, o);
}
public static ValidationResult valid(String key, Object o) {
ValidCheck check = new ValidCheck();
check.key = key;
return applyCheck(check, key, o);
}
static ValidationResult applyCheck(AbstractAnnotationCheck check, String key, Object o) {
try {
ValidationResult result = new ValidationResult();
if (!check.isSatisfied(o, o, null, null)) {
Error error = new Error(key, check.getClass()
.getDeclaredField("mes").get(null)
+ "",
check.getMessageVariables() == null ? emptyList() : check.getMessageVariables().values());
Validation.current().errors.add(error);
result.error = error;
result.ok = false;
} else {
result.ok = true;
}
return result;
} catch (Exception e) {
throw new UnexpectedException(e);
}
}
}
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