/*
* Copyright (C) 2015 Red Hat, Inc. and/or its affiliates.
*
* 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.jboss.errai.forge.config.converter;
import javax.inject.Singleton;
import java.util.HashMap;
import java.util.Map;
@Singleton
public class ConfigTypeConverterFactory {
private static final ConfigTypeConverter<?>[] DEFAULT_CONVERTERS = new ConfigTypeConverter<?>[] {
new FileConverter(),
new SetConverter(),
new StringConverter(),
new BooleanConverter()
};
private final Map<Class<?>, ConfigTypeConverter<?>> converterMap;
protected ConfigTypeConverterFactory() {
this(DEFAULT_CONVERTERS);
}
protected ConfigTypeConverterFactory(final ConfigTypeConverter<?>... converters) {
converterMap = new HashMap<Class<?>, ConfigTypeConverter<?>>();
for (int i = 0; i < converters.length; i++) {
converterMap.put(converters[i].getType(), converters[i]);
}
}
/**
* @return Never returns null.
* @throws IllegalArgumentException If no converter exists for the given type.
*/
public <T> ConfigTypeConverter<T> getConverter(final Class<T> type) throws IllegalArgumentException {
@SuppressWarnings("unchecked")
final ConfigTypeConverter<T> converter = (ConfigTypeConverter<T>) converterMap.get(type);
if (converter == null) {
throw new IllegalArgumentException("There is no converter for the type " + type.getName());
}
else {
return converter;
}
}
}