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/*
 * Copyright 2016 Crown Copyright
 *
 * 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 uk.gov.gchq.koryphe.example.util;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;

import java.io.IOException;

public final class JsonSerialiser {
    private JsonSerialiser() { }

    private static final ObjectMapper MAPPER = createObjectMapper();

    private static ObjectMapper createObjectMapper() {
        final ObjectMapper mapper = new ObjectMapper();
        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        mapper.setSerializationInclusion(JsonInclude.Include.NON_DEFAULT);
        mapper.configure(SerializationFeature.INDENT_OUTPUT, true);
        return mapper;
    }

    public static String serialise(final Object object) throws IOException {
        return MAPPER.writeValueAsString(object);
    }

    public static  T deserialise(final String json, final Class type) throws IOException {
        return MAPPER.readValue(json, type);
    }

    public static  T deserialise(final String json, final TypeReference typeReference) throws IOException {
        return MAPPER.readValue(json, typeReference);
    }
}