| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.cassandra.serializers; |
| |
| import io.netty.util.concurrent.FastThreadLocal; |
| import org.apache.cassandra.db.marshal.ValueAccessor; |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| |
| import java.nio.ByteBuffer; |
| import java.text.SimpleDateFormat; |
| import java.time.ZoneId; |
| import java.time.ZonedDateTime; |
| import java.time.format.DateTimeFormatter; |
| import java.time.format.DateTimeFormatterBuilder; |
| import java.time.format.DateTimeParseException; |
| import java.time.temporal.ChronoField; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.TimeZone; |
| import java.util.regex.Pattern; |
| |
| |
| public class TimestampSerializer extends TypeSerializer<Date> |
| { |
| |
| private static final List<DateTimeFormatter> dateFormatters = generateFormatters(); |
| |
| private static List<DateTimeFormatter> generateFormatters() |
| { |
| List<DateTimeFormatter> formatters = new ArrayList<>(); |
| |
| final String[] dateTimeFormats = new String[] |
| { |
| "y-M-d'T'H:m[:s]", |
| "y-M-d H:m[:s]" |
| }; |
| final String[] offsetFormats = new String[] |
| { |
| " z", |
| " zzzz", |
| " X", |
| "X", |
| "XXX", |
| }; |
| |
| for (String dateTimeFormat: dateTimeFormats) |
| { |
| // local date time |
| formatters.add( |
| new DateTimeFormatterBuilder() |
| .appendPattern(dateTimeFormat) |
| .appendFraction(ChronoField.MILLI_OF_SECOND, 0, 9, true) |
| .toFormatter() |
| .withZone(ZoneId.systemDefault())); |
| for (String offset : offsetFormats) |
| { |
| formatters.add( |
| new DateTimeFormatterBuilder() |
| .appendPattern(dateTimeFormat) |
| .appendFraction(ChronoField.MILLI_OF_SECOND, 0, 9, true) |
| .appendPattern(offset) |
| .toFormatter() |
| ); |
| } |
| } |
| |
| for (String offset: offsetFormats) |
| { |
| formatters.add( |
| new DateTimeFormatterBuilder() |
| .appendPattern("yyyy-MM-dd") |
| .appendPattern(offset) |
| .parseDefaulting(ChronoField.NANO_OF_DAY, 0) |
| .toFormatter() |
| ); |
| } |
| |
| // local date |
| formatters.add( |
| new DateTimeFormatterBuilder() |
| .append(DateTimeFormatter.ISO_DATE) |
| .parseDefaulting(ChronoField.NANO_OF_DAY, 0) |
| .toFormatter().withZone(ZoneId.systemDefault())); |
| |
| return formatters; |
| } |
| |
| private static final Pattern timestampPattern = Pattern.compile("^-?\\d+$"); |
| |
| private static final FastThreadLocal<SimpleDateFormat> FORMATTER_UTC = new FastThreadLocal<SimpleDateFormat>() |
| { |
| protected SimpleDateFormat initialValue() |
| { |
| SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSX"); |
| sdf.setTimeZone(TimeZone.getTimeZone("UTC")); |
| return sdf; |
| } |
| }; |
| |
| private static final FastThreadLocal<SimpleDateFormat> FORMATTER_TO_JSON = new FastThreadLocal<SimpleDateFormat>() |
| { |
| protected SimpleDateFormat initialValue() |
| { |
| SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSSX"); |
| sdf.setTimeZone(TimeZone.getTimeZone("UTC")); |
| return sdf; |
| } |
| }; |
| |
| |
| |
| public static final TimestampSerializer instance = new TimestampSerializer(); |
| |
| public <V> Date deserialize(V value, ValueAccessor<V> accessor) |
| { |
| return accessor.isEmpty(value) ? null : new Date(accessor.toLong(value)); |
| } |
| |
| public ByteBuffer serialize(Date value) |
| { |
| return value == null ? ByteBufferUtil.EMPTY_BYTE_BUFFER : ByteBufferUtil.bytes(value.getTime()); |
| } |
| |
| public static long dateStringToTimestamp(String source) throws MarshalException |
| { |
| if (source.equalsIgnoreCase("now")) |
| return System.currentTimeMillis(); |
| |
| // Milliseconds since epoch? |
| if (timestampPattern.matcher(source).matches()) |
| { |
| try |
| { |
| return Long.parseLong(source); |
| } |
| catch (NumberFormatException e) |
| { |
| throw new MarshalException(String.format("Unable to make long (for date) from: '%s'", source), e); |
| } |
| } |
| |
| for (DateTimeFormatter fmt: dateFormatters) |
| { |
| try |
| { |
| return ZonedDateTime.parse(source, fmt).toInstant().toEpochMilli(); |
| } |
| catch (DateTimeParseException e) |
| { |
| continue; |
| } |
| } |
| throw new MarshalException(String.format("Unable to parse a date/time from '%s'", source)); |
| } |
| |
| public static SimpleDateFormat getJsonDateFormatter() |
| { |
| return FORMATTER_TO_JSON.get(); |
| } |
| |
| public <V> void validate(V value, ValueAccessor<V> accessor) throws MarshalException |
| { |
| if (accessor.size(value) != 8 && !accessor.isEmpty(value)) |
| throw new MarshalException(String.format("Expected 8 or 0 byte long for date (%d)", accessor.size(value))); |
| } |
| |
| public String toString(Date value) |
| { |
| return toStringUTC(value); |
| } |
| |
| public String toStringUTC(Date value) |
| { |
| return value == null ? "" : FORMATTER_UTC.get().format(value); |
| } |
| |
| public Class<Date> getType() |
| { |
| return Date.class; |
| } |
| |
| /** |
| * Builds CQL literal for a timestamp using time zone UTC and fixed date format. |
| * @see #FORMATTER_UTC |
| */ |
| @Override |
| public String toCQLLiteral(ByteBuffer buffer) |
| { |
| return buffer == null || !buffer.hasRemaining() |
| ? "null" |
| : FORMATTER_UTC.get().format(deserialize(buffer)); |
| } |
| } |