org.bidib.jbidibc.netbidib.pairingstore.ProtocolVersionDeserializer Maven / Gradle / Ivy

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package org.bidib.jbidibc.netbidib.pairingstore;

import java.io.IOException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import com.fasterxml.jackson.databind.node.IntNode;
import com.fasterxml.jackson.databind.node.ObjectNode;

public class ProtocolVersionDeserializer extends StdDeserializer {

    private static final long serialVersionUID = 1L;

    private static final Logger LOGGER = LoggerFactory.getLogger(ProtocolVersionDeserializer.class);

    public ProtocolVersionDeserializer() {
        this(null);
    }

    public ProtocolVersionDeserializer(Class vc) {
        super(vc);
    }

    @Override
    public PairingStoreProtocolVersion deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {

        JsonNode node = jp.getCodec().readTree(jp);

        LOGGER.debug("Current node: {}", node);
        int majorVersion = 0;
        int minorVersion = 0;
        if (node instanceof ObjectNode) {
            majorVersion = (Integer) (((IntNode) node.findValue("major")).numberValue());
            minorVersion = (Integer) (((IntNode) node.findValue("minor")).numberValue());
        }
        else {
            String[] values = node.textValue().split("\\.");

            majorVersion = Integer.valueOf(values[0]);
            minorVersion = Integer.valueOf(values[1]);
        }
        return new PairingStoreProtocolVersion(majorVersion, minorVersion);
    }

}