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/**
 * 
 */
package com.giants.web.springmvc.exception;

import java.lang.reflect.UndeclaredThrowableException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MarkerFactory;
import org.springframework.context.NoSuchMessageException;
import org.springframework.context.support.ResourceBundleMessageSource;

import com.giants.common.GiantsConstants;
import com.giants.common.exception.BusinessException;
import com.giants.common.exception.DataValidationException;
import com.giants.common.exception.GiantsException;
import com.giants.common.exception.DataValidationException.FieldError;
import com.giants.web.springmvc.json.JsonResult;

/**
 * @author vencent.lu
 *
 */
public class BuildExceptionJsonResult {
	
	private final static Logger logger = LoggerFactory.getLogger(BuildExceptionJsonResult.class);
	
	public static JsonResult build(Throwable e, ResourceBundleMessageSource resource, Locale locale) {
		if(e instanceof UndeclaredThrowableException){
			UndeclaredThrowableException ute = (UndeclaredThrowableException)e;
			return build(ute.getUndeclaredThrowable(), resource, locale);
		}else if(e instanceof GiantsException){
			JsonResult result = new JsonResult();
			GiantsException ge = (GiantsException)e;
			result.setCode(ge.buildErrorCode());
			if (StringUtils.isNotEmpty(ge.getErrorMessage())) {
				result.setMessage(ge.getErrorMessage());
			} else {
				result.setMessage(getMessage(resource, ge.getErrorMessageKey(), locale, 
						ge	.getMessageArgs() == null ? null : ge.getMessageArgs()));
			}
			result.setData(ge.getErrorData());
			if (e instanceof DataValidationException) {
				DataValidationException dve = (DataValidationException) e;
				if (CollectionUtils.isNotEmpty(dve.getFieldErrors())) {
					List fieldErrors = dve.getFieldErrors();
					Map fieldErrorMap  = new HashMap();
					for (FieldError fieldError : fieldErrors){
						if (ArrayUtils.isEmpty(fieldError.getArgs())) {
							fieldErrorMap.put(fieldError.getFieldName(),
									getMessage(resource, fieldError.getErrorMsgKey(), locale));
						} else {
							List