gson.util.MessageBodyDeserializer.java Source code

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Here is the source code for gson.util.MessageBodyDeserializer.java

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package gson.util;

import com.google.gson.JsonArray;
import java.lang.reflect.Type;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.reflect.TypeToken;
import java.sql.Date;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.TimeZone;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.pl.lecznica.Pacjent;
import org.pl.lecznica.Wynik;
import org.pl.lecznica.messages.GetMessage;
import org.pl.lecznica.messages.MessageBody;
import org.pl.lecznica.messages.DocHealthInfoMessage;
import org.pl.lecznica.messages.HealthInfoMessage;
import org.pl.lecznica.messages.StringMessage;

/**
 *
 * @author Wojtek
 */
public class MessageBodyDeserializer implements JsonDeserializer<MessageBody> {

    @Override
    public MessageBody deserialize(final JsonElement json, final Type typeOfT, final JsonDeserializationContext jdc)
            throws JsonParseException {
        final JsonObject jsonObject = json.getAsJsonObject();
        MessageBody message = null;
        if (jsonObject.get("text_message") != null) {
            message = new StringMessage();
            ((StringMessage) message).setTextMessage(jsonObject.get("text_message").getAsString());
        } else if (jsonObject.get("date_from") != null) {
            message = new GetMessage();
            String data = jsonObject.get("date_from").getAsString();
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
            formatter.setTimeZone(TimeZone.getTimeZone("Europe/Warsaw"));
            try {
                Date dataFrom = new Date(formatter.parse(data).getTime());
                ((GetMessage) message).setDateFrom(dataFrom);
            } catch (ParseException ex) {
                Logger.getLogger(MessageBodyDeserializer.class.getName()).log(Level.SEVERE, null, ex);
            }
        } else if (jsonObject.get("healthInfo") != null) {
            List<Wynik> healthInfo = new ArrayList<Wynik>();
            message = new HealthInfoMessage();
            JsonArray healthInfoArray = jsonObject.get("healthInfo").getAsJsonArray();
            for (JsonElement js : healthInfoArray) {
                Wynik wynik = jdc.deserialize(js, Wynik.class);
                healthInfo.add(wynik);
            }
            ((HealthInfoMessage) message).setHealthInfo(healthInfo);

        } else if (jsonObject.get("patientsInfo") != null) {
            List<Pacjent> patientsInfo = new ArrayList<Pacjent>();
            message = new DocHealthInfoMessage();
            JsonArray patientsInfoArray = jsonObject.get("patientsInfo").getAsJsonArray();
            for (JsonElement js : patientsInfoArray) {
                Pacjent pacjent = jdc.deserialize(js, Pacjent.class);
                patientsInfo.add(pacjent);
            }
            ((DocHealthInfoMessage) message).setPatientsInfo(patientsInfo);

        } else
            throw new JsonParseException("Not supported json!");

        if (message != null)
            message.setKey(jsonObject.get("key").getAsString());
        return message;
    }

}