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Support temporal types in Kafka JSON encoder
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104 changes: 104 additions & 0 deletions
104
.../src/main/java/io/prestosql/plugin/kafka/encoder/json/format/CustomDateTimeFormatter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| /* | ||
| * Licensed 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 io.prestosql.plugin.kafka.encoder.json.format; | ||
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|
||
| import io.prestosql.spi.type.SqlDate; | ||
| import io.prestosql.spi.type.SqlTime; | ||
| import io.prestosql.spi.type.SqlTimeWithTimeZone; | ||
| import io.prestosql.spi.type.SqlTimestamp; | ||
| import io.prestosql.spi.type.SqlTimestampWithTimeZone; | ||
| import io.prestosql.spi.type.Type; | ||
| import org.joda.time.DateTime; | ||
| import org.joda.time.DateTimeZone; | ||
| import org.joda.time.LocalTime; | ||
| import org.joda.time.chrono.ISOChronology; | ||
| import org.joda.time.format.DateTimeFormat; | ||
| import org.joda.time.format.DateTimeFormatter; | ||
|
|
||
| import java.util.Locale; | ||
| import java.util.Optional; | ||
| import java.util.TimeZone; | ||
|
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| import static io.prestosql.plugin.kafka.encoder.json.format.util.TimeConversions.PICOSECONDS_PER_SECOND; | ||
| import static io.prestosql.plugin.kafka.encoder.json.format.util.TimeConversions.getMillisOfDay; | ||
| import static io.prestosql.plugin.kafka.encoder.json.format.util.TimeConversions.scaleEpochMicrosToMillis; | ||
| import static io.prestosql.plugin.kafka.encoder.json.format.util.TimeConversions.scalePicosToMillis; | ||
| import static io.prestosql.spi.type.DateType.DATE; | ||
| import static io.prestosql.spi.type.TimeType.TIME_MILLIS; | ||
| import static io.prestosql.spi.type.TimeWithTimeZoneType.TIME_WITH_TIME_ZONE; | ||
| import static io.prestosql.spi.type.TimestampType.TIMESTAMP_MILLIS; | ||
| import static io.prestosql.spi.type.TimestampWithTimeZoneType.TIMESTAMP_TZ_MILLIS; | ||
| import static java.util.concurrent.TimeUnit.DAYS; | ||
| import static org.joda.time.DateTimeZone.UTC; | ||
|
|
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| public class CustomDateTimeFormatter | ||
| implements JsonDateTimeFormatter | ||
| { | ||
| private final DateTimeFormatter formatter; | ||
|
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| public static boolean isSupportedType(Type type) | ||
| { | ||
| return type.equals(DATE) || | ||
| type.equals(TIME_MILLIS) || | ||
| type.equals(TIME_WITH_TIME_ZONE) || | ||
| type.equals(TIMESTAMP_MILLIS) || | ||
| type.equals(TIMESTAMP_TZ_MILLIS); | ||
| } | ||
|
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| public CustomDateTimeFormatter(Optional<String> pattern) | ||
| { | ||
| this.formatter = DateTimeFormat.forPattern(getPattern(pattern)) | ||
| .withLocale(Locale.ENGLISH) | ||
| .withChronology(ISOChronology.getInstanceUTC()); | ||
| } | ||
|
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| private static String getPattern(Optional<String> pattern) | ||
| { | ||
| return pattern.orElseThrow(() -> new IllegalArgumentException("No pattern defined for custom date time format")); | ||
| } | ||
|
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| @Override | ||
| public String formatDate(SqlDate value) | ||
| { | ||
| return formatter.withZoneUTC().print(new DateTime(DAYS.toMillis(value.getDays()))); | ||
| } | ||
|
|
||
| @Override | ||
| public String formatTime(SqlTime value, int precision) | ||
| { | ||
| return formatter.withZoneUTC().print(LocalTime.fromMillisOfDay(getMillisOfDay(scalePicosToMillis(value.getPicos())))); | ||
| } | ||
|
|
||
| @Override | ||
| public String formatTimeWithZone(SqlTimeWithTimeZone value) | ||
| { | ||
| int offsetMinutes = value.getOffsetMinutes(); | ||
| DateTimeZone dateTimeZone = DateTimeZone.forOffsetHoursMinutes(offsetMinutes / 60, offsetMinutes % 60); | ||
| long picos = value.getPicos() - (offsetMinutes * 60 * PICOSECONDS_PER_SECOND); | ||
| return formatter.withZone(dateTimeZone).print(new DateTime(scalePicosToMillis(picos), dateTimeZone)); | ||
| } | ||
|
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||
| @Override | ||
| public String formatTimestamp(SqlTimestamp value) | ||
| { | ||
| return formatter.withZoneUTC().print(new DateTime(scaleEpochMicrosToMillis(value.getEpochMicros()), UTC)); | ||
| } | ||
|
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| @Override | ||
| public String formatTimestampWithZone(SqlTimestampWithTimeZone value) | ||
| { | ||
| DateTimeZone dateTimeZone = DateTimeZone.forTimeZone(TimeZone.getTimeZone(value.getTimeZoneKey().getZoneId())); | ||
| return formatter.withZone(dateTimeZone).print(new DateTime(value.getEpochMillis(), dateTimeZone)); | ||
| } | ||
| } |
56 changes: 56 additions & 0 deletions
56
presto-kafka/src/main/java/io/prestosql/plugin/kafka/encoder/json/format/DateTimeFormat.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /* | ||
| * Licensed 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 io.prestosql.plugin.kafka.encoder.json.format; | ||
|
|
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| import io.prestosql.spi.type.Type; | ||
|
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| import java.util.Locale; | ||
| import java.util.Optional; | ||
| import java.util.function.Function; | ||
|
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| import static java.util.Objects.requireNonNull; | ||
|
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| public enum DateTimeFormat | ||
| { | ||
| CUSTOM_DATE_TIME(CustomDateTimeFormatter::new, CustomDateTimeFormatter::isSupportedType), | ||
| ISO8601(pattern -> new ISO8601DateTimeFormatter(), ISO8601DateTimeFormatter::isSupportedType), | ||
| RFC2822(pattern -> new RFC2822DateTimeFormatter(), RFC2822DateTimeFormatter::isSupportedType), | ||
| MILLISECONDS_SINCE_EPOCH(pattern -> new MillisecondsSinceEpochFormatter(), MillisecondsSinceEpochFormatter::isSupportedType), | ||
| SECONDS_SINCE_EPOCH(pattern -> new SecondsSinceEpochFormatter(), SecondsSinceEpochFormatter::isSupportedType); | ||
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| private final Function<Optional<String>, JsonDateTimeFormatter> formatterConstructor; | ||
| private final Function<Type, Boolean> isSupportedType; | ||
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| DateTimeFormat(Function<Optional<String>, JsonDateTimeFormatter> formatterConstructor, Function<Type, Boolean> isSupportedType) | ||
| { | ||
| this.formatterConstructor = requireNonNull(formatterConstructor, "formatterConstructor is null"); | ||
| this.isSupportedType = requireNonNull(isSupportedType, "isSupportedType is null"); | ||
| } | ||
|
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| public boolean isSupportedType(Type type) | ||
| { | ||
| return isSupportedType.apply(type); | ||
| } | ||
|
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| public JsonDateTimeFormatter getFormatter(Optional<String> pattern) | ||
| { | ||
| return formatterConstructor.apply(pattern); | ||
| } | ||
|
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| @Override | ||
| public String toString() | ||
| { | ||
| return name().toLowerCase(Locale.ENGLISH).replaceAll("_", "-"); | ||
| } | ||
| } |
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