| /* |
| * 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.flink.formats.common; |
| |
| import org.apache.flink.annotation.Internal; |
| |
| import java.time.format.DateTimeFormatter; |
| import java.time.format.DateTimeFormatterBuilder; |
| import java.time.temporal.ChronoField; |
| |
| /** |
| * Time formats and timestamp formats respecting the RFC3339 specification, ISO-8601 specification |
| * and SQL specification. |
| */ |
| @Internal |
| public class TimeFormats { |
| |
| /** Formatter for RFC 3339-compliant string representation of a time value. */ |
| public static final DateTimeFormatter RFC3339_TIME_FORMAT = |
| new DateTimeFormatterBuilder() |
| .appendPattern("HH:mm:ss") |
| .appendFraction(ChronoField.NANO_OF_SECOND, 0, 9, true) |
| .appendPattern("'Z'") |
| .toFormatter(); |
| |
| /** |
| * Formatter for RFC 3339-compliant string representation of a timestamp value (with UTC |
| * timezone). |
| */ |
| public static final DateTimeFormatter RFC3339_TIMESTAMP_FORMAT = |
| new DateTimeFormatterBuilder() |
| .append(DateTimeFormatter.ISO_LOCAL_DATE) |
| .appendLiteral('T') |
| .append(RFC3339_TIME_FORMAT) |
| .toFormatter(); |
| |
| /** Formatter for ISO8601 string representation of a timestamp value (without UTC timezone). */ |
| public static final DateTimeFormatter ISO8601_TIMESTAMP_FORMAT = |
| DateTimeFormatter.ISO_LOCAL_DATE_TIME; |
| |
| /** Formatter for ISO8601 string representation of a timestamp value (with UTC timezone). */ |
| public static final DateTimeFormatter ISO8601_TIMESTAMP_WITH_LOCAL_TIMEZONE_FORMAT = |
| new DateTimeFormatterBuilder() |
| .append(DateTimeFormatter.ISO_LOCAL_DATE) |
| .appendLiteral('T') |
| .append(DateTimeFormatter.ISO_LOCAL_TIME) |
| .appendPattern("'Z'") |
| .toFormatter(); |
| |
| /** Formatter for SQL string representation of a time value. */ |
| public static final DateTimeFormatter SQL_TIME_FORMAT = |
| new DateTimeFormatterBuilder() |
| .appendPattern("HH:mm:ss") |
| .appendFraction(ChronoField.NANO_OF_SECOND, 0, 9, true) |
| .toFormatter(); |
| |
| /** Formatter for SQL string representation of a timestamp value (without UTC timezone). */ |
| public static final DateTimeFormatter SQL_TIMESTAMP_FORMAT = |
| new DateTimeFormatterBuilder() |
| .append(DateTimeFormatter.ISO_LOCAL_DATE) |
| .appendLiteral(' ') |
| .append(SQL_TIME_FORMAT) |
| .toFormatter(); |
| |
| /** Formatter for SQL string representation of a timestamp value (with UTC timezone). */ |
| public static final DateTimeFormatter SQL_TIMESTAMP_WITH_LOCAL_TIMEZONE_FORMAT = |
| new DateTimeFormatterBuilder() |
| .append(DateTimeFormatter.ISO_LOCAL_DATE) |
| .appendLiteral(' ') |
| .append(SQL_TIME_FORMAT) |
| .appendPattern("'Z'") |
| .toFormatter(); |
| |
| private TimeFormats() {} |
| } |