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73 changes: 73 additions & 0 deletions
73
...exec/src/main/java/org/apache/drill/exec/store/easy/json/values/UtcDateValueListener.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| /* | ||
| * 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.drill.exec.store.easy.json.values; | ||
|
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| import java.time.LocalDate; | ||
| import java.time.ZoneOffset; | ||
| import java.time.ZonedDateTime; | ||
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| import org.apache.drill.exec.expr.fn.impl.DateUtility; | ||
| import org.apache.drill.exec.store.easy.json.loader.JsonLoaderImpl; | ||
| import org.apache.drill.exec.store.easy.json.parser.TokenIterator; | ||
| import org.apache.drill.exec.vector.accessor.ScalarWriter; | ||
|
|
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| import com.fasterxml.jackson.core.JsonToken; | ||
|
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| /** | ||
| * Drill-specific extension to allow dates only, expressed in UTC | ||
| * to be consistent with Mongo timestamps. | ||
| * <p> | ||
| * Drill dates are in the local time zone, so conversion is needed. | ||
| * Drill dates are stored in ms, which is odd. | ||
| */ | ||
| public class UtcDateValueListener extends ScalarListener { | ||
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| public UtcDateValueListener(JsonLoaderImpl loader, ScalarWriter writer) { | ||
| super(loader, writer); | ||
| } | ||
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| @Override | ||
| public void onValue(JsonToken token, TokenIterator tokenizer) { | ||
| switch (token) { | ||
| case VALUE_NULL: | ||
| setNull(); | ||
| break; | ||
| case VALUE_NUMBER_INT: | ||
| writer.setLong(tokenizer.longValue()); | ||
| break; | ||
| case VALUE_STRING: | ||
| try { | ||
|
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| // A Drill date is ms since the epoch, local time. Our input | ||
| // is in UTC. We DO NOT want to convert from the date, midnight, UTC | ||
| // to local time since that will change the date. Instead, we just | ||
| // want to copy the offset since the epoch from UTC to our local | ||
| // time, so that we retain the date, even if the span of the date | ||
| // is different locally than UTC. A mess. | ||
| LocalDate localDate = LocalDate.parse(tokenizer.stringValue(), DateUtility.isoFormatDate); | ||
| ZonedDateTime utc = localDate.atStartOfDay(ZoneOffset.UTC); | ||
| writer.setLong(utc.toEpochSecond() * 1000); | ||
| } catch (Exception e) { | ||
| throw loader.dataConversionError(schema(), "date", tokenizer.stringValue()); | ||
| } | ||
| break; | ||
| default: | ||
| throw tokenizer.invalidValue(token); | ||
| } | ||
| } | ||
| } |
72 changes: 72 additions & 0 deletions
72
...src/main/java/org/apache/drill/exec/store/easy/json/values/UtcTimestampValueListener.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| /* | ||
| * 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.drill.exec.store.easy.json.values; | ||
|
|
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| import java.time.Instant; | ||
| import java.time.ZoneId; | ||
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| import org.apache.drill.exec.store.easy.json.loader.JsonLoaderImpl; | ||
| import org.apache.drill.exec.store.easy.json.parser.TokenIterator; | ||
| import org.apache.drill.exec.vector.accessor.ScalarWriter; | ||
|
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| import com.fasterxml.jackson.core.JsonToken; | ||
|
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| /** | ||
| * Per the <a href="https://docs.mongodb.com/manual/reference/mongodb-extended-json-v1/#bson.data_date"> | ||
| * V1 docs</a>: | ||
| * <quote> | ||
| * In Strict mode, {@code <date>} is an ISO-8601 date format with a mandatory time zone field | ||
| * following the template YYYY-MM-DDTHH:mm:ss.mmm<+/-Offset>. | ||
| * <p> | ||
| * In Shell mode, {@code <date>} is the JSON representation of a 64-bit signed | ||
| * integer giving the number of milliseconds since epoch UTC. | ||
| * </quote> | ||
| * <p> | ||
| * Drill dates are in the local time zone, so conversion is needed. | ||
| */ | ||
| public class UtcTimestampValueListener extends ScalarListener { | ||
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| private final ZoneId localZoneId = ZoneId.systemDefault(); | ||
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| public UtcTimestampValueListener(JsonLoaderImpl loader, ScalarWriter writer) { | ||
| super(loader, writer); | ||
| } | ||
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| @Override | ||
| public void onValue(JsonToken token, TokenIterator tokenizer) { | ||
| Instant instant; | ||
| switch (token) { | ||
| case VALUE_NULL: | ||
| setNull(); | ||
| return; | ||
| case VALUE_NUMBER_INT: | ||
| instant = Instant.ofEpochMilli(tokenizer.longValue()); | ||
| break; | ||
| case VALUE_STRING: | ||
| try { | ||
| instant = Instant.parse(tokenizer.stringValue()); | ||
| } catch (Exception e) { | ||
| throw loader.dataConversionError(schema(), "date", tokenizer.stringValue()); | ||
| } | ||
| break; | ||
| default: | ||
| throw tokenizer.invalidValue(token); | ||
| } | ||
| writer.setLong(instant.toEpochMilli() + localZoneId.getRules().getOffset(instant).getTotalSeconds() * 1000); | ||
| } | ||
| } |
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