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// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package de.bytefish.pgbulkinsert.pgsql.handlers;
import de.bytefish.pgbulkinsert.exceptions.ValueHandlerAlreadyRegisteredException;
import de.bytefish.pgbulkinsert.exceptions.ValueHandlerNotRegisteredException;
import de.bytefish.pgbulkinsert.pgsql.constants.DataType;
import java.util.EnumMap;
import java.util.Map;
import java.util.stream.Collectors;
public class ValueHandlerProvider implements IValueHandlerProvider {
private final Map valueHandlers;
public ValueHandlerProvider() {
valueHandlers = new EnumMap<>(DataType.class);
add(DataType.Boolean, new BooleanValueHandler());
add(DataType.Char, new ByteValueHandler<>());
add(DataType.Numeric, new BigDecimalValueHandler<>());
add(DataType.DoublePrecision, new DoubleValueHandler<>());
add(DataType.SinglePrecision, new FloatValueHandler<>());
add(DataType.Date, new LocalDateValueHandler());
add(DataType.Time, new LocalTimeValueHandler());
add(DataType.Timestamp, new LocalDateTimeValueHandler());
add(DataType.TimestampTz, new ZonedDateTimeValueHandler());
add(DataType.Int2, new ShortValueHandler<>());
add(DataType.Int4, new IntegerValueHandler<>());
add(DataType.Int8, new LongValueHandler<>());
add(DataType.Text, new StringValueHandler());
add(DataType.VarChar, new StringValueHandler());
add(DataType.Inet4, new Inet4AddressValueHandler());
add(DataType.Inet6, new Inet6AddressValueHandler());
add(DataType.Uuid, new UUIDValueHandler());
add(DataType.Bytea, new ByteArrayValueHandler());
add(DataType.Jsonb, new JsonbValueHandler());
add(DataType.Hstore, new HstoreValueHandler());
add(DataType.Point, new PointValueHandler());
add(DataType.Box, new BoxValueHandler());
add(DataType.Line, new LineValueHandler());
add(DataType.LineSegment, new LineSegmentValueHandler());
add(DataType.Path, new PathValueHandler());
add(DataType.Polygon, new PolygonValueHandler());
add(DataType.Circle, new CircleValueHandler());
add(DataType.MacAddress, new MacAddressValueHandler());
add(DataType.TsRange, new RangeValueHandler<>(new LocalDateTimeValueHandler()));
add(DataType.TsTzRange, new RangeValueHandler<>(new ZonedDateTimeValueHandler()));
add(DataType.Int4Range, new RangeValueHandler<>(new IntegerValueHandler<>()));
add(DataType.Int8Range, new RangeValueHandler<>(new LongValueHandler<>()));
add(DataType.NumRange, new RangeValueHandler<>(new BigDecimalValueHandler<>()));
add(DataType.DateRange, new RangeValueHandler<>(new LocalDateValueHandler()));
}
public ValueHandlerProvider add(DataType targetType, IValueHandler valueHandler) {
if(valueHandlers.containsKey(targetType)) {
throw new ValueHandlerAlreadyRegisteredException(String.format("TargetType '%s' has already been registered", targetType));
}
valueHandlers.put(targetType, valueHandler);
return this;
}
@Override
public IValueHandler resolve(DataType dataType) {
@SuppressWarnings("unchecked")
IValueHandler handler = valueHandlers.get(dataType);
if(handler == null) {
throw new ValueHandlerNotRegisteredException(String.format("DataType '%s' has not been registered", dataType));
}
return handler;
}
@Override
public String toString() {
String valueHandlersString =
valueHandlers.entrySet()
.stream()
.map(e -> e.getValue().toString())
.collect(Collectors.joining(", "));
return "ValueHandlerProvider{" +
"valueHandlers=[" + valueHandlersString + "]" +
'}';
}
}
