com.alibaba.nacos.client.env.convert.CompositeConverter Maven / Gradle / Ivy
/*
* Copyright 1999-2022 Alibaba Group Holding Ltd.
*
* 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 com.alibaba.nacos.client.env.convert;
import java.util.HashMap;
import java.util.Map;
import java.util.MissingFormatArgumentException;
/**
* default converters.
* @author onewe
*/
public class CompositeConverter {
private final Map, AbstractPropertyConverter> converterRegistry = new HashMap<>();
public CompositeConverter() {
converterRegistry.put(Boolean.class, new BooleanConverter());
converterRegistry.put(Integer.class, new IntegerConverter());
converterRegistry.put(Long.class, new LongConverter());
}
/**
* convert property to target type.
* @param property the property gets from environments
* @param targetClass target class object
* @param target type
* @return the object of target type
*/
public T convert(String property, Class targetClass) {
final AbstractPropertyConverter converter = converterRegistry.get(targetClass);
if (converter == null) {
throw new MissingFormatArgumentException("converter not found, can't convert from String to " + targetClass.getCanonicalName());
}
return (T) converter.convert(property);
}
}