gate.converter.custom.FormConverter Maven / Gradle / Ivy

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A multipurpose java library
There is a newer version: 12.3.1
package gate.converter.custom;

import gate.constraint.Constraint;
import gate.converter.CollectionConverter;
import gate.converter.Converter;
import gate.error.ConversionException;
import gate.lang.json.JsonScanner;
import gate.lang.json.JsonToken;
import gate.lang.json.JsonWriter;
import gate.type.Form;
import java.lang.reflect.Type;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;

public class FormConverter extends CollectionConverter
{

	@Override
	public List> getConstraints()
	{
		return Collections.emptyList();
	}

	@Override
	public String getMask()
	{
		return null;
	}

	@Override
	public String getDescription()
	{
		return "Campos do tipo Form devem estar no formado JSON.";
	}

	@Override
	public String toText(Class type, Object object)
	{
		if (object instanceof Form)
		{
			Form form = (Form) object;
			if (form.getFields().isEmpty())
				return "";
			return form.getFields().stream().map(e -> Converter.toText(e))
				.collect(Collectors.joining("", "", ""));
		}
		return "";
	}

	@Override
	public String toText(Class type, Object object, String format)
	{
		return toText(type, object);
	}

	@Override
	public String toString(Class type, Object object)
	{
		return object != null ? object.toString() : "";
	}

	@Override
	public Object ofString(Class type, String string) throws ConversionException
	{
		try
		{
			return string != null && string.trim().length() > 0
				? Form.valueOf(string) : null;
		} catch (IllegalArgumentException e)
		{
			throw new ConversionException(string.concat(" não é um Formulário válido."));
		}
	}

	@Override
	public Object readFromResultSet(ResultSet rs, int fields, Class type) throws SQLException, ConversionException
	{
		String string = rs.getString(fields);
		return rs.wasNull() ? null : Form.valueOf(string);
	}

	@Override
	public Object readFromResultSet(ResultSet rs, String fields, Class type) throws SQLException, ConversionException
	{
		String string = rs.getString(fields);
		return rs.wasNull() ? null : Form.valueOf(string);
	}

	@Override
	public int writeToPreparedStatement(PreparedStatement ps, int fields, Object value) throws SQLException
	{
		if (value != null)
			ps.setString(fields++, ((Form) value).toString());
		else
			ps.setNull(fields++, Types.VARCHAR);
		return fields;
	}

	@Override
	public  void toJson(JsonWriter writer, Class type, T object) throws ConversionException
	{
		writer.write(object.toString());
	}

	@Override
	public Object ofJson(JsonScanner scanner, Type type, Type elementType) throws ConversionException
	{
		if (scanner.getCurrent().getType() != JsonToken.Type.OPEN_ARRAY)
			throw new ConversionException(scanner.getCurrent() + " is not a form");

		Form form = new Form();
		Converter converter = Converter.getConverter(gate.type.Field.class);

		do
		{
			scanner.scan();
			if (scanner.getCurrent().getType() != JsonToken.Type.CLOSE_ARRAY)
				form.getFields().add((gate.type.Field) converter.ofJson(scanner, gate.type.Field.class, null));
			else if (!form.getFields().isEmpty())
				throw new ConversionException(scanner.getCurrent() + " is not a form");
		} while (JsonToken.Type.COMMA == scanner.getCurrent().getType());

		if (scanner.getCurrent().getType() != JsonToken.Type.CLOSE_ARRAY)
			throw new ConversionException(scanner.getCurrent() + " is not a form");

		scanner.scan();
		return form;

	}

	@Override
	public  void toJsonText(JsonWriter writer, Class type, T object) throws ConversionException
	{
		writer.write(object.toString());
	}

}