org.apache.jetspeed.util.ojb.LocaleFieldConversion Maven / Gradle / Ivy
/*
* 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.jetspeed.util.ojb;
import java.util.Locale;
import java.util.StringTokenizer;
import org.apache.jetspeed.util.JetspeedLocale;
import org.apache.ojb.broker.accesslayer.conversions.ConversionException;
import org.apache.ojb.broker.accesslayer.conversions.FieldConversion;
/**
*
* ObjectRelationalBridge field conversion.
*
* Helps transparently map Locale objects into a database table
* that contains country, langauge and variant field and vice versa.
*
* field should be tokenized with commas
*/
public class LocaleFieldConversion implements FieldConversion
{
private static final String DELIM = ",";
/**
* @see org.apache.ojb.broker.accesslayer.conversions.FieldConversion#javaToSql(java.lang.Object)
*/
public Object javaToSql(Object arg0) throws ConversionException
{
if (arg0 instanceof Locale)
{
Locale locale = (Locale) arg0;
String country = locale.getCountry();
String language = locale.getLanguage();
String variant = locale.getVariant();
StringBuffer buffer = new StringBuffer(40);
if (language != null)
{
buffer.append(language);
}
buffer.append(DELIM);
if (country != null)
{
buffer.append(country);
}
buffer.append(DELIM);
if (variant != null)
{
buffer.append(variant);
}
return buffer.toString().trim();
}
else
{
return arg0;
}
}
/**
* @see org.apache.ojb.broker.accesslayer.conversions.FieldConversion#sqlToJava(java.lang.Object)
*/
public Object sqlToJava(Object arg0) throws ConversionException
{
if (arg0 instanceof String)
{
String localeString = (String) arg0;
StringTokenizer tokenizer = new StringTokenizer(localeString, DELIM);
if(tokenizer.hasMoreTokens() == false)
{
return JetspeedLocale.getDefaultLocale();
}
String language = tokenizer.nextToken().trim();
String country = null;
String variant = null;
if(tokenizer.hasMoreTokens())
{
country = tokenizer.nextToken().trim();
}
if(tokenizer.hasMoreTokens())
{
variant = tokenizer.nextToken().trim();
}
if (country != null && language != null && variant != null)
{
return new Locale (language, country, variant);
}
else if (country != null && language != null)
{
return new Locale(language, country);
}
else if (language != null)
{
return new Locale(language, ""); // JDK 1.3 compatibility
}
else
{
return JetspeedLocale.getDefaultLocale();
}
}
else
{
return arg0;
}
}
}