step.core.accessors.MapDeserializer Maven / Gradle / Ivy

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/*******************************************************************************
 * Copyright (C) 2020, exense GmbH
 *  
 * This file is part of STEP
 *  
 * STEP is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *  
 * STEP is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *  
 * You should have received a copy of the GNU Affero General Public License
 * along with STEP.  If not, see .
 ******************************************************************************/
package step.core.accessors;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import org.bson.types.ObjectId;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.Version;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.node.ObjectNode;

// Used to deserialize Map. Per default jackson deserialize the map values as Map
public class MapDeserializer extends JsonDeserializer> {

	private static Logger logger = LoggerFactory.getLogger(MapDeserializer.class);
	
	private ObjectMapper mapper;
	
	public MapDeserializer() {
		super();
		mapper = getMapper();
	}
	
	public static ObjectMapper getMapper() {
		ObjectMapper mapper = new ObjectMapper();
		mapper.enableDefaultTyping();
        mapper.registerModule(new SimpleModule("jersey", new Version(1, 0, 0, null,null,null)) //
                .addSerializer(_id, _idSerializer()) //
                .addDeserializer(_id, _idDeserializer())); 
        return mapper;
	}

	private static Class _id = ObjectId.class;

	private static JsonDeserializer _idDeserializer() {
		return new JsonDeserializer() {
			public ObjectId deserialize(JsonParser jp, DeserializationContext ctxt)
					throws IOException, JsonProcessingException {
				return new ObjectId(jp.readValueAs(String.class));
			}
		};
	}

	private static JsonSerializer