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airframe-parquet: Add record writer (#1785)
* Add record writer inteface * Support various inputs * Add exception handling * Add usage note
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103 changes: 103 additions & 0 deletions
103
airframe-parquet/src/test/scala/wvlet/airframe/parquet/ParquetRecordWriterTest.scala
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| /* | ||
| * 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 wvlet.airframe.parquet | ||
|
|
||
| import org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName | ||
| import org.apache.parquet.schema.{MessageType, PrimitiveType, Types} | ||
| import wvlet.airframe.codec.PrimitiveCodec.AnyCodec | ||
| import wvlet.airframe.control.Control.withResource | ||
| import wvlet.airframe.surface.Surface | ||
| import wvlet.airspec.AirSpec | ||
| import wvlet.log.io.IOUtil | ||
|
|
||
| /** | ||
| */ | ||
| object ParquetRecordWriterTest extends AirSpec { | ||
| case class MyRecord(id: Int, name: String) | ||
| private val schema = Parquet.toParquetSchema(Surface.of[MyRecord]) | ||
|
|
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| test("write generic records with a schema") { | ||
| IOUtil.withTempFile("target/tmp-record", ".parquet") { file => | ||
| withResource(Parquet.newRecordWriter(file.getPath, schema)) { writer => | ||
| writer.write(Map("id" -> 1, "name" -> "leo")) | ||
| writer.write(Array(2, "yui")) | ||
| writer.write("""{"id":3, "name":"aina"}""") | ||
| writer.write("""[4, "ruri"]""") | ||
| writer.write(AnyCodec.toMsgPack(Map("id" -> 5, "name" -> "xxx"))) | ||
| } | ||
|
|
||
| withResource(Parquet.newReader[Map[String, Any]](file.getPath)) { reader => | ||
| reader.read() shouldBe Map("id" -> 1, "name" -> "leo") | ||
| reader.read() shouldBe Map("id" -> 2, "name" -> "yui") | ||
| reader.read() shouldBe Map("id" -> 3, "name" -> "aina") | ||
| reader.read() shouldBe Map("id" -> 4, "name" -> "ruri") | ||
| reader.read() shouldBe Map("id" -> 5, "name" -> "xxx") | ||
| reader.read() shouldBe null | ||
| } | ||
| } | ||
| } | ||
|
|
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| test("throw an exception for an invalid input") { | ||
| IOUtil.withTempFile("target/tmp-record-invalid", ".parquet") { file => | ||
| withResource(Parquet.newRecordWriter(file.getPath, schema)) { writer => | ||
| intercept[IllegalArgumentException] { | ||
| writer.write("{broken json data}") | ||
| } | ||
| intercept[IllegalArgumentException] { | ||
| writer.write("not a json data") | ||
| } | ||
| intercept[IllegalArgumentException] { | ||
| // Broken MessagePack data | ||
| writer.write(Array[Byte](0x1)) | ||
| } | ||
| intercept[IllegalArgumentException] { | ||
| // Insufficient array size | ||
| writer.write(Array(1)) | ||
| } | ||
| intercept[IllegalArgumentException] { | ||
| // Too large array size | ||
| writer.write(Array(1, 2, 3)) | ||
| } | ||
| intercept[IllegalArgumentException] { | ||
| writer.write(null) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| case class RecordOpt(id: Int, flag: Option[Int] = None) | ||
| private val schema2 = new MessageType( | ||
| "my record", | ||
| Types.required(PrimitiveTypeName.INT32).named("id"), | ||
| Types.optional(PrimitiveTypeName.INT32).named("flag") | ||
| ) | ||
|
|
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| test("write records with Option") { | ||
| IOUtil.withTempFile("target/tmp-record-opt", ".parquet") { file => | ||
| withResource(Parquet.newRecordWriter(file.getPath, schema2)) { writer => | ||
| writer.write(RecordOpt(1, Some(1))) | ||
| writer.write(RecordOpt(2, None)) | ||
| writer.write("""{"id":"3"}""") | ||
| } | ||
|
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||
| withResource(Parquet.newReader[Map[String, Any]](file.getPath)) { reader => | ||
| reader.read() shouldBe Map("id" -> 1, "flag" -> 1) | ||
| reader.read() shouldBe Map("id" -> 2) | ||
| reader.read() shouldBe Map("id" -> 3) | ||
| reader.read() shouldBe null | ||
| } | ||
| } | ||
|
|
||
| } | ||
| } |
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