JacksonSerializerService.java

package org.pieShare.pieTools.piePlate.service.serializer.jacksonSerializer;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.pieShare.pieTools.piePlate.model.message.HeaderMessage;
import org.pieShare.pieTools.piePlate.model.message.api.IClusterMessage;
import org.pieShare.pieTools.piePlate.service.serializer.api.ISerializerService;
import org.pieShare.pieTools.piePlate.service.serializer.exception.SerializerServiceException;

import java.io.IOException;
import org.pieShare.pieTools.piePlate.model.message.api.IPieMessage;
import org.pieShare.pieTools.piePlate.model.serializer.jacksonSerializer.IPieMessageMixIn;

/**
 * Created by Svetoslav on 19.03.14.
 */
public class JacksonSerializerService implements ISerializerService {

	private ObjectMapper objectMapper;

	public JacksonSerializerService() {
		this.objectMapper = new ObjectMapper();
		this.objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
		this.objectMapper.addMixInAnnotations(IClusterMessage.class, IPieMessageMixIn.class);
	}

	@Override
	public IPieMessage deserialize(byte[] buffer) throws SerializerServiceException {
		HeaderMessage header;

		try {
			header = objectMapper.readValue(buffer, HeaderMessage.class);
		} catch (IOException e) {
			throw new SerializerServiceException("Could not deserialize header!", e);
		}

		IPieMessage msg;

		try {
			msg = (IPieMessage) objectMapper.readValue(buffer, Class.forName(header.getType()));
		} catch (IOException e) {
			throw new SerializerServiceException("Could not deserialize msg!", e);
		} catch (ClassNotFoundException e) {
			throw new SerializerServiceException("Could not find given class name!", e);
		}

		return msg;
	}

	@Override
	public byte[] serialize(IPieMessage msg) throws SerializerServiceException {
		try {
			return objectMapper.writeValueAsBytes(msg);
		} catch (JsonProcessingException e) {
			throw new SerializerServiceException("Failed serializing JSON", e);
		}
	}
}