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Support Iceberg's timestamp with nano-precision data type
NOTE On hold, because Iceberg code as of 1.7.1 does not yet fully support that new data type, causing test failures. Fixes projectnessie#10236
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80
.../main/java/org/projectnessie/catalog/formats/iceberg/types/IcebergTimestampNanosType.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| /* | ||
| * Copyright (C) 2023 Dremio | ||
| * | ||
| * 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 org.projectnessie.catalog.formats.iceberg.types; | ||
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| import org.apache.avro.LogicalTypes; | ||
| import org.apache.avro.Schema; | ||
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| /** Iceberg timestamp, nanosecond precision. */ | ||
| public final class IcebergTimestampNanosType extends IcebergPrimitiveType { | ||
| private static final Schema TIMESTAMP_NS_SCHEMA = | ||
| LogicalTypes.timestampNanos().addToSchema(Schema.create(Schema.Type.LONG)); | ||
| private static final Schema TIMESTAMPTZ_NS_SCHEMA = | ||
| LogicalTypes.timestampNanos().addToSchema(Schema.create(Schema.Type.LONG)); | ||
| public static final String ADJUST_TO_UTC_PROP = "adjust-to-utc"; | ||
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| static { | ||
| TIMESTAMP_NS_SCHEMA.addProp(ADJUST_TO_UTC_PROP, false); | ||
| TIMESTAMPTZ_NS_SCHEMA.addProp(ADJUST_TO_UTC_PROP, true); | ||
| } | ||
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| private final boolean adjustToUTC; | ||
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| IcebergTimestampNanosType(boolean adjustToUTC) { | ||
| this.adjustToUTC = adjustToUTC; | ||
| } | ||
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| public boolean adjustToUTC() { | ||
| return adjustToUTC; | ||
| } | ||
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| @Override | ||
| public String type() { | ||
| return adjustToUTC() ? TYPE_TIMESTAMP_NS_TZ : TYPE_TIMESTAMP_NS; | ||
| } | ||
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| @Override | ||
| public Schema avroSchema(int fieldId) { | ||
| return adjustToUTC() ? TIMESTAMPTZ_NS_SCHEMA : TIMESTAMP_NS_SCHEMA; | ||
| } | ||
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| @Override | ||
| public byte[] serializeSingleValue(Object value) { | ||
| return IcebergLongType.serializeLong((Long) value); | ||
| } | ||
|
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| @Override | ||
| public Object deserializeSingleValue(byte[] value) { | ||
| return IcebergLongType.deserializeLong(value); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return type().hashCode() ^ (adjustToUTC ? 1 : 0); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object obj) { | ||
| if (!(obj instanceof IcebergTimestampNanosType)) { | ||
| return false; | ||
| } | ||
| if (obj == this) { | ||
| return true; | ||
| } | ||
| IcebergTimestampNanosType o = (IcebergTimestampNanosType) obj; | ||
| return o.adjustToUTC == adjustToUTC; | ||
| } | ||
| } |
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