/*
* Copyright 2004-2008 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.grails.web.converters.marshaller.json;
import grails.converters.JSON;
import java.util.Locale;
import org.codehaus.groovy.grails.web.json.JSONWriter;
import org.grails.web.converters.exceptions.ConverterException;
import org.grails.web.converters.marshaller.ObjectMarshaller;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.validation.Errors;
import org.springframework.validation.FieldError;
import org.springframework.validation.ObjectError;
/**
* @author Siegfried Puchbauer
* @since 1.1
*/
public class ValidationErrorsMarshaller implements ObjectMarshaller<JSON>, ApplicationContextAware {
private ApplicationContext applicationContext;
public boolean supports(Object object) {
return object instanceof Errors;
}
public void marshalObject(Object object, JSON json) throws ConverterException {
Errors errors = (Errors) object;
JSONWriter writer = json.getWriter();
try {
writer.object();
writer.key("errors");
writer.array();
for (Object o : errors.getAllErrors()) {
if (o instanceof FieldError) {
FieldError fe = (FieldError) o;
writer.object();
json.property("object", fe.getObjectName());
json.property("field", fe.getField());
json.property("rejected-value", fe.getRejectedValue());
Locale locale = LocaleContextHolder.getLocale();
if (applicationContext != null) {
json.property("message", applicationContext.getMessage(fe, locale));
}
else {
json.property("message", fe.getDefaultMessage());
}
writer.endObject();
} else if (o instanceof ObjectError) {
ObjectError fe = (ObjectError) o;
writer.object();
json.property("object", fe.getObjectName());
Locale locale = LocaleContextHolder.getLocale();
if (applicationContext != null) {
json.property("message", applicationContext.getMessage(fe, locale));
}
else {
json.property("message", fe.getDefaultMessage());
}
writer.endObject();
}
}
writer.endArray();
writer.endObject();
}
catch (ConverterException ce) {
throw ce;
}
catch (Exception e) {
throw new ConverterException("Error converting Bean with class " + object.getClass().getName(), e);
}
}
public void setApplicationContext(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
}