| // SPDX-License-Identifier: LGPL-2.1-or-later |
| // Copyright (c) 2012-2014 Monty Program Ab |
| // Copyright (c) 2015-2021 MariaDB Corporation Ab |
| |
| package org.mariadb.jdbc.plugin.codec; |
| |
| import java.io.IOException; |
| import java.sql.SQLDataException; |
| import java.time.*; |
| import java.time.temporal.ChronoField; |
| import java.util.Calendar; |
| import java.util.EnumSet; |
| import org.mariadb.jdbc.client.*; |
| import org.mariadb.jdbc.client.socket.Writer; |
| import org.mariadb.jdbc.plugin.Codec; |
| |
| /** Instant codec */ |
| public class InstantCodec implements Codec<Instant> { |
| |
| /** default instance */ |
| public static final InstantCodec INSTANCE = new InstantCodec(); |
| |
| private static final EnumSet<DataType> COMPATIBLE_TYPES = |
| EnumSet.of( |
| DataType.DATETIME, |
| DataType.DATE, |
| DataType.YEAR, |
| DataType.TIMESTAMP, |
| DataType.VARSTRING, |
| DataType.VARCHAR, |
| DataType.STRING, |
| DataType.TIME, |
| DataType.BLOB, |
| DataType.TINYBLOB, |
| DataType.MEDIUMBLOB, |
| DataType.LONGBLOB); |
| |
| public String className() { |
| return Instant.class.getName(); |
| } |
| |
| public boolean canDecode(ColumnDecoder column, Class<?> type) { |
| return COMPATIBLE_TYPES.contains(column.getType()) && type.isAssignableFrom(Instant.class); |
| } |
| |
| public boolean canEncode(Object value) { |
| return value instanceof Instant; |
| } |
| |
| @Override |
| public Instant decodeText( |
| ReadableByteBuf buf, int length, ColumnDecoder column, Calendar calParam) |
| throws SQLDataException { |
| LocalDateTime localDateTime = |
| LocalDateTimeCodec.INSTANCE.decodeText(buf, length, column, calParam); |
| if (localDateTime == null) return null; |
| return localDateTime.atZone(ZoneId.systemDefault()).toInstant(); |
| } |
| |
| @Override |
| public Instant decodeBinary( |
| ReadableByteBuf buf, int length, ColumnDecoder column, Calendar calParam) |
| throws SQLDataException { |
| LocalDateTime localDateTime = |
| LocalDateTimeCodec.INSTANCE.decodeBinary(buf, length, column, calParam); |
| if (localDateTime == null) return null; |
| return localDateTime.atZone(ZoneId.systemDefault()).toInstant(); |
| } |
| |
| @Override |
| public void encodeText( |
| Writer encoder, Context context, Object val, Calendar calParam, Long maxLen) |
| throws IOException { |
| Instant instant = (Instant) val; |
| |
| encoder.writeByte('\''); |
| ZonedDateTime zonedDateTime = ZonedDateTime.ofInstant(instant, ZoneId.systemDefault()); |
| if (calParam != null) { |
| zonedDateTime = zonedDateTime.withZoneSameInstant(calParam.getTimeZone().toZoneId()); |
| } |
| encoder.writeAscii( |
| zonedDateTime.format( |
| instant.getNano() != 0 |
| ? LocalDateTimeCodec.TIMESTAMP_FORMAT |
| : LocalDateTimeCodec.TIMESTAMP_FORMAT_NO_FRACTIONAL)); |
| encoder.writeByte('\''); |
| } |
| |
| @Override |
| public void encodeBinary(Writer encoder, Object value, Calendar calParam, Long maxLength) |
| throws IOException { |
| Instant instant = (Instant) value; |
| ZonedDateTime zonedDateTime = ZonedDateTime.ofInstant(instant, ZoneId.systemDefault()); |
| if (calParam != null) { |
| zonedDateTime = zonedDateTime.withZoneSameInstant(calParam.getTimeZone().toZoneId()); |
| } |
| |
| int nano = zonedDateTime.getNano(); |
| if (nano > 0) { |
| encoder.writeByte((byte) 11); |
| encoder.writeShort((short) zonedDateTime.get(ChronoField.YEAR)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.MONTH_OF_YEAR)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.DAY_OF_MONTH)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.HOUR_OF_DAY)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.MINUTE_OF_HOUR)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.SECOND_OF_MINUTE)); |
| encoder.writeInt(nano / 1000); |
| } else { |
| encoder.writeByte((byte) 7); |
| encoder.writeShort((short) zonedDateTime.get(ChronoField.YEAR)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.MONTH_OF_YEAR)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.DAY_OF_MONTH)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.HOUR_OF_DAY)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.MINUTE_OF_HOUR)); |
| encoder.writeByte(zonedDateTime.get(ChronoField.SECOND_OF_MINUTE)); |
| } |
| } |
| |
| public int getBinaryEncodeType() { |
| return DataType.DATETIME.get(); |
| } |
| } |