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Free Java Reporting Library

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/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2023 Cloud Software Group, Inc. All rights reserved.
 * http://www.jaspersoft.com
 *
 * Unless you have purchased a commercial license agreement from Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of JasperReports.
 *
 * JasperReports is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * JasperReports 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with JasperReports. If not, see .
 */
package net.sf.jasperreports.data.jdbc;

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

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;


/**
 * @author Teodor Danciu ([email protected])
 */
public class MapSerializer extends StdSerializer>
{
	private static final long serialVersionUID = 1L;

	public MapSerializer()
	{
		this(null);
	}

	public MapSerializer(Class> vc)
	{
		super(vc);
	}

	@Override
	public boolean isUnwrappingSerializer() 
	{
		return false;
	}
	
	@Override
	public void serialize(Map map, JsonGenerator jgen, SerializerProvider provider) throws IOException 
	{
		if (map != null)
		{
			jgen.writeStartArray();
			for (Map.Entry entry : map.entrySet())
			{
				jgen.writeStartObject();
				jgen.writeStringField("key", entry.getKey());
				jgen.writeStringField("value", entry.getValue());
				jgen.writeEndObject();
			}
			jgen.writeEndArray();
		}
	}
}