/*
* Copyright 2004-2005 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.springmodules.validation.bean.converter;
import java.io.Serializable;
import org.springframework.validation.DefaultMessageCodesResolver;
import org.springframework.validation.MessageCodesResolver;
/**
* A {@link MessageCodesResolver} implementation that can be used along with the {@link ModelAwareErrorCodeConverter}.
* This resolver extracts the basic error code from the model-aware one and uses an internal message code converter to
* resolve all error codes for the this basic error code. The model-aware one is then added to the top of the error codes
* list. For example, if the internal messagee code resolver is {@link DefaultMessageCodesResolver}, the model-aware
* error code is <code>Person.firstName[not.blank]</code>, and the basic error code is <code>not.blank</code>,
* then the resolved error codes will be:
* <ul>
* <li>Person.firstName[not.blank]</li>
* <li>not.blank.person.firstName</li>
* <li>not.blank.firstName</li>
* <li>not.blank.java.lang.String</li>
* <li>not.blank</li>
* </ul>
*
* @author Uri Boness
*/
public class ModelAwareMessageCodesResolver implements MessageCodesResolver, Serializable {
private MessageCodesResolver internalResolver;
/**
* Constructs a new ModelAwareErrorCodeConverter with {@link DefaultMessageCodesResolver} as the internal resolver.
*/
public ModelAwareMessageCodesResolver() {
this(new DefaultMessageCodesResolver());
}
/**
* Constructs a new ModelAwareErrorCodeConverter with a given internal message codes resolver.
*
* @param internalResolver The internal message codes resolver to be used.
*/
public ModelAwareMessageCodesResolver(MessageCodesResolver internalResolver) {
this.internalResolver = internalResolver;
}
/**
* @see MessageCodesResolver#resolveMessageCodes(String, String)
*/
public String[] resolveMessageCodes(String errorCode, String objectName) {
int prefixIndex = errorCode.lastIndexOf(ModelAwareErrorCodeConverter.ERROR_CODE_SEPERATOR_PREFIX);
int suffixIndex = errorCode.lastIndexOf(ModelAwareErrorCodeConverter.ERROR_CODE_SEPERATOR_SUFFIX);
if (prefixIndex < 0 || suffixIndex < 0 || suffixIndex != errorCode.length() - 1) {
return internalResolver.resolveMessageCodes(errorCode, objectName);
}
String basicCode = errorCode.substring(prefixIndex + 1, suffixIndex);
String[] basicCodes = internalResolver.resolveMessageCodes(basicCode, objectName);
String[] codes = new String[basicCodes.length + 1];
System.arraycopy(basicCodes, 0, codes, 1, basicCodes.length);
codes[0] = errorCode;
return codes;
}
/**
* @see MessageCodesResolver#resolveMessageCodes(String, String, String, Class)
*/
public String[] resolveMessageCodes(String errorCode, String objectName, String field, Class fieldType) {
int prefixIndex = errorCode.lastIndexOf(ModelAwareErrorCodeConverter.ERROR_CODE_SEPERATOR_PREFIX);
int suffixIndex = errorCode.lastIndexOf(ModelAwareErrorCodeConverter.ERROR_CODE_SEPERATOR_SUFFIX);
if (prefixIndex < 0 || suffixIndex < 0 || suffixIndex != errorCode.length() - 1) {
return internalResolver.resolveMessageCodes(errorCode, objectName, field, fieldType);
}
String basicCode = errorCode.substring(prefixIndex + 1, suffixIndex);
String[] basicCodes = internalResolver.resolveMessageCodes(basicCode, objectName, field, fieldType);
String[] codes = new String[basicCodes.length + 1];
System.arraycopy(basicCodes, 0, codes, 1, basicCodes.length);
codes[0] = errorCode;
return codes;
}
}