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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.myfaces.extensions.validator.core.validation.message.resolver;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.myfaces.extensions.validator.core.WebXmlParameter;
import org.apache.myfaces.extensions.validator.util.ExtValUtils;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
/**
* @author Gerhard Petracek
*/
public abstract class AbstractValidationErrorMessageResolver implements MessageResolver {
private static String deactivateDefaultConvention = WebXmlParameter.DEACTIVATE_DEFAULT_CONVENTION;
private static ResourceBundle defaultBundle = null;
protected final Log logger = LogFactory.getLog(getClass());
public String getMessage(String key, Locale locale) {
if (key == null || key.equals("")) {
return null;
}
String customMessage = tryToUseMessageBundleConvention(key, locale);
if (customMessage != null) {
return customMessage;
}
/*
* no message bundle or message found (with the convention)?
*/
ResourceBundle resourceBundle = null;
//try to load custom messages
try {
resourceBundle = ResourceBundle.getBundle(getCustomBaseName(), locale);
}
catch (Throwable t) {
//do nothing - it was just a try
}
if (resourceBundle != null) {
try {
customMessage = resourceBundle.getString(key);
}
catch (MissingResourceException e) {
logger.trace("no custom message for " + key + " within " + getCustomBaseName());
}
}
//use custom name (if possible) otherwise: fallback to default message (if possible)
return (customMessage != null) ? customMessage : (getBaseName() != null) ? ResourceBundle.getBundle(getBaseName(), locale).getString(key) : null;
}
private String tryToUseMessageBundleConvention(String key, Locale locale) {
String customMessage = null;
if ((deactivateDefaultConvention == null || !deactivateDefaultConvention.equalsIgnoreCase("true")) &&
isDefaultMessageBundleConventionActive()) {
if (defaultBundle == null) {
try {
defaultBundle = ResourceBundle.getBundle(ExtValUtils.getInformationProviderBean().getConventionForMessageBundle(), locale);
} catch (Throwable t) {
//do nothing
deactivateDefaultConvention = "true";
}
}
if (defaultBundle != null) {
try {
customMessage = defaultBundle.getString(key);
}
catch (MissingResourceException e) {
//do nothing
}
}
}
return customMessage;
}
protected boolean isDefaultMessageBundleConventionActive() {
return true;
}
protected abstract String getBaseName();
protected String getCustomBaseName() {
return null;
}
}