net.solarnetwork.node.upload.bulkjsonwebpost.DatumSerializer.java Source code

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Here is the source code for net.solarnetwork.node.upload.bulkjsonwebpost.DatumSerializer.java

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/* ==================================================================
 * DatumSerializer.java - Aug 25, 2014 2:27:41 PM
 * 
 * Copyright 2007-2014 SolarNetwork.net Dev Team
 * 
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU General Public License as 
 * published by the Free Software Foundation; either version 2 of 
 * the License, or (at your option) any later version.
 * 
 * This program 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 
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
 * 02111-1307 USA
 * ==================================================================
 */

package net.solarnetwork.node.upload.bulkjsonwebpost;

import java.io.IOException;
import java.math.BigDecimal;
import java.util.Date;
import java.util.Map;
import net.solarnetwork.node.domain.Datum;
import net.solarnetwork.util.ClassUtils;
import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.std.StdScalarSerializer;

/**
 * Serialize {@link Datum} to JSON.
 * 
 * @author matt
 * @version 1.1
 */
public class DatumSerializer extends StdScalarSerializer<Datum> {

    /**
     * Default constructor.
     */
    public DatumSerializer() {
        super(Datum.class);
    }

    @Override
    public void serialize(Datum datum, JsonGenerator generator, SerializerProvider provider)
            throws IOException, JsonGenerationException {
        generator.writeStartObject();
        generator.writeStringField("__type__", datum.getClass().getSimpleName());
        Map<String, Object> props = ClassUtils.getBeanProperties(datum, null, true);
        for (Map.Entry<String, Object> me : props.entrySet()) {
            Object val = me.getValue();
            if (val instanceof Number) {
                if (val instanceof Integer) {
                    generator.writeNumberField(me.getKey(), (Integer) val);
                } else if (val instanceof Long) {
                    generator.writeNumberField(me.getKey(), (Long) val);
                } else if (val instanceof Double) {
                    generator.writeNumberField(me.getKey(), (Double) val);
                } else if (val instanceof Float) {
                    generator.writeNumberField(me.getKey(), (Float) val);
                } else if (val instanceof BigDecimal) {
                    generator.writeNumberField(me.getKey(), (BigDecimal) val);
                }
            } else if (val instanceof Date) {
                generator.writeNumberField(me.getKey(), ((Date) val).getTime());
            } else if (val instanceof String) {
                generator.writeStringField(me.getKey(), (String) val);
            }
        }
        generator.writeEndObject();
    }

}