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feat: expose hivepartitioningoptions (#233)
* feat: expose hivepartitioningoptions * feat: add javadocs
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Praful Makani
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Mar 19, 2020
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google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/HivePartitioningOptions.java
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| /* | ||
| * Copyright 2020 Google LLC | ||
| * | ||
| * 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. | ||
| */ | ||
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| package com.google.cloud.bigquery; | ||
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| import com.google.common.base.MoreObjects; | ||
| import java.util.Objects; | ||
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| /** HivePartitioningOptions currently supported types include: AVRO, CSV, JSON, ORC and Parquet. */ | ||
| public final class HivePartitioningOptions { | ||
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| private final String mode; | ||
| private final String sourceUriPrefix; | ||
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| public static final class Builder { | ||
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| private String mode; | ||
| private String sourceUriPrefix; | ||
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| private Builder() {} | ||
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| private Builder(HivePartitioningOptions options) { | ||
| this.mode = options.mode; | ||
| this.sourceUriPrefix = options.sourceUriPrefix; | ||
| } | ||
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| /** | ||
| * [Optional] When set, what mode of hive partitioning to use when reading data. Two modes are | ||
| * supported. (1) AUTO: automatically infer partition key name(s) and type(s). (2) STRINGS: | ||
| * automatically infer partition key name(s). All types are interpreted as strings. Not all | ||
| * storage formats support hive partitioning. Requesting hive partitioning on an unsupported | ||
| * format will lead to an error. Currently supported types include: AVRO, CSV, JSON, ORC and | ||
| * Parquet. | ||
| */ | ||
| public Builder setMode(String mode) { | ||
| this.mode = mode; | ||
| return this; | ||
| } | ||
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| /** | ||
| * [Optional] When hive partition detection is requested, a common prefix for all source uris | ||
| * should be supplied. The prefix must end immediately before the partition key encoding begins. | ||
| * For example, consider files following this data layout. | ||
| * gs://bucket/path_to_table/dt=2019-01-01/country=BR/id=7/file.avro | ||
| * gs://bucket/path_to_table/dt=2018-12-31/country=CA/id=3/file.avro When hive partitioning is | ||
| * requested with either AUTO or STRINGS detection, the common prefix can be either of | ||
| * gs://bucket/path_to_table or gs://bucket/path_to_table/ (trailing slash does not matter). | ||
| */ | ||
| public Builder setSourceUriPrefix(String sourceUriPrefix) { | ||
| this.sourceUriPrefix = sourceUriPrefix; | ||
| return this; | ||
| } | ||
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| /** Creates a {@link HivePartitioningOptions} object. */ | ||
| public HivePartitioningOptions build() { | ||
| return new HivePartitioningOptions(this); | ||
| } | ||
| } | ||
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| private HivePartitioningOptions(Builder builder) { | ||
| this.mode = builder.mode; | ||
| this.sourceUriPrefix = builder.sourceUriPrefix; | ||
| } | ||
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| /* Returns the mode of hive partitioning */ | ||
| public String getMode() { | ||
| return mode; | ||
| } | ||
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| /* Returns the sourceUriPrefix of hive partitioning */ | ||
| public String getSourceUriPrefix() { | ||
| return sourceUriPrefix; | ||
| } | ||
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| /** Returns a builder for the {@link HivePartitioningOptions} object. */ | ||
| public Builder toBuilder() { | ||
| return new Builder(this); | ||
| } | ||
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| /** Returns a builder for the {@link HivePartitioningOptions} object. */ | ||
| public static Builder newBuilder() { | ||
| return new Builder(); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return MoreObjects.toStringHelper(this) | ||
| .add("mode", mode) | ||
| .add("sourceUriPrefix", sourceUriPrefix) | ||
| .toString(); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hash(mode, sourceUriPrefix); | ||
| } | ||
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| com.google.api.services.bigquery.model.HivePartitioningOptions toPb() { | ||
| com.google.api.services.bigquery.model.HivePartitioningOptions options = | ||
| new com.google.api.services.bigquery.model.HivePartitioningOptions(); | ||
| options.setMode(mode); | ||
| options.setSourceUriPrefix(sourceUriPrefix); | ||
| return options; | ||
| } | ||
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| static HivePartitioningOptions fromPb( | ||
| com.google.api.services.bigquery.model.HivePartitioningOptions options) { | ||
| Builder builder = newBuilder(); | ||
| if (options.getMode() != null) { | ||
| builder.setMode(options.getMode()); | ||
| } | ||
| if (options.getSourceUriPrefix() != null) { | ||
| builder.setSourceUriPrefix(options.getSourceUriPrefix()); | ||
| } | ||
| return builder.build(); | ||
| } | ||
| } |
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...e-cloud-bigquery/src/test/java/com/google/cloud/bigquery/HivePartitioningOptionsTest.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,69 @@ | ||
| /* | ||
| * Copyright 2020 Google LLC | ||
| * | ||
| * 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. | ||
| */ | ||
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| package com.google.cloud.bigquery; | ||
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| import static com.google.common.truth.Truth.assertThat; | ||
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| import org.junit.Test; | ||
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| public class HivePartitioningOptionsTest { | ||
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| private static final String MODE = "STRING"; | ||
| private static final String SOURCE_URI_PREFIX = "gs://bucket/path_to_table"; | ||
| private static final HivePartitioningOptions HIVE_PARTITIONING_OPTIONS = | ||
| HivePartitioningOptions.newBuilder() | ||
| .setMode(MODE) | ||
| .setSourceUriPrefix(SOURCE_URI_PREFIX) | ||
| .build(); | ||
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| @Test | ||
| public void testToBuilder() { | ||
| compareHivePartitioningOptions( | ||
| HIVE_PARTITIONING_OPTIONS, HIVE_PARTITIONING_OPTIONS.toBuilder().build()); | ||
| HivePartitioningOptions options = HIVE_PARTITIONING_OPTIONS.toBuilder().setMode("AUTO").build(); | ||
| assertThat(options.getMode()).isEqualTo("AUTO"); | ||
| options = HIVE_PARTITIONING_OPTIONS.toBuilder().setMode(MODE).build(); | ||
| compareHivePartitioningOptions(HIVE_PARTITIONING_OPTIONS, options); | ||
| } | ||
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| @Test | ||
| public void testToBuilderIncomplete() { | ||
| HivePartitioningOptions options = HivePartitioningOptions.newBuilder().build(); | ||
| compareHivePartitioningOptions(options, options.toBuilder().build()); | ||
| } | ||
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| @Test | ||
| public void testBuilder() { | ||
| assertThat(HIVE_PARTITIONING_OPTIONS.getMode()).isEqualTo(MODE); | ||
| assertThat(HIVE_PARTITIONING_OPTIONS.getSourceUriPrefix()).isEqualTo(SOURCE_URI_PREFIX); | ||
| } | ||
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| @Test | ||
| public void testToAndFromPb() { | ||
| compareHivePartitioningOptions( | ||
| HIVE_PARTITIONING_OPTIONS, | ||
| HivePartitioningOptions.fromPb(HIVE_PARTITIONING_OPTIONS.toPb())); | ||
| } | ||
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| private void compareHivePartitioningOptions( | ||
| HivePartitioningOptions expected, HivePartitioningOptions value) { | ||
| assertThat(value.getMode()).isEqualTo(expected.getMode()); | ||
| assertThat(value.getSourceUriPrefix()).isEqualTo(expected.getSourceUriPrefix()); | ||
| assertThat(value.toString()).isEqualTo(expected.toString()); | ||
| assertThat(value.hashCode()).isEqualTo(expected.hashCode()); | ||
| } | ||
| } |