com.astamuse.asta4d.web.util.JsonUtil Maven / Gradle / Ivy

/*
 * Copyright 2012 astamuse company,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.astamuse.asta4d.web.util;

import java.io.IOException;
import java.io.OutputStream;

import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonUtil {

    private final static ObjectMapper mapper = new ObjectMapper();
    static {
        // mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
    }

    public final static void toJson(OutputStream out, Object obj) throws IOException {
        mapper.writeValue(out, obj);
    }

    public final static String toJson(Object obj) throws JsonProcessingException {
        return mapper.writeValueAsString(obj);
    }

    public final static  T fromJson(String json, Class cls) throws JsonParseException, JsonMappingException, IOException {
        return mapper.readValue(json, cls);
    }

    public final static Object fromJson(String json) throws JsonParseException, JsonMappingException, IOException {
        return mapper.readValue(json, Object.class);
    }

}