com.jayway.jsonpath.internal.spi.mapper.DefaultMappingProvider Maven / Gradle / Ivy

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Java port of Stefan Goessner JsonPath.

There is a newer version: 2.9.0

/*
 * Copyright 2011 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 com.jayway.jsonpath.internal.spi.mapper;

import com.jayway.jsonpath.Configuration;
import com.jayway.jsonpath.spi.mapper.MappingProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.HashMap;

public class DefaultMappingProvider implements MappingProvider {

    private static final Logger logger = LoggerFactory.getLogger(DefaultMappingProvider.class);

    private HashMap, HashMap, Mapper>> converters = new HashMap, HashMap, Mapper>>();

    public DefaultMappingProvider(){
        addMapper(new NumberMapper());
        addMapper(new StringMapper());
        addMapper(new DateMapper());
    }

    protected void addMapper(Mapper converter) {
        for (Mapper.ConvertiblePair convertible : converter.getConvertibleTypes()) {
            if(!converters.containsKey(convertible.getTargetType())){
                converters.put(convertible.getTargetType(), new HashMap, Mapper>());
            }
            converters.get(convertible.getTargetType()).put(convertible.getSourceType(), converter);
        }
    }

    @Override
    public  T map(Object source, Class targetType, Configuration configuration) {
        if(source == null){
            return null;
        }
        HashMap, Mapper> targetConverters = converters.get(targetType);
        if(targetConverters != null){
            Mapper mapper = targetConverters.get(source.getClass());
            if(mapper != null){
                return (T) mapper.convert(source, source.getClass(), targetType, configuration);
            }
            mapper = targetConverters.get(Object.class);
            if(mapper != null){
                return (T) mapper.convert(source, source.getClass(), targetType, configuration);
            }
        }
        return (T)source;
    }
}