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[FLINK-8451] [serializers] Make Scala tuple serializer deserializatio…
…n more failure tolerant This closes apache#5567.
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.../src/test/scala/org/apache/flink/api/scala/runtime/TupleSerializerCompatibilityTest.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package org.apache.flink.api.scala.runtime | ||
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| import java.io.InputStream | ||
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| import org.apache.flink.api.common.ExecutionConfig | ||
| import org.apache.flink.api.common.typeutils.TypeSerializerSerializationUtil | ||
| import org.apache.flink.api.java.typeutils.runtime.TupleSerializerConfigSnapshot | ||
| import org.apache.flink.api.scala.createTypeInformation | ||
| import org.apache.flink.api.scala.runtime.TupleSerializerCompatibilityTestGenerator._ | ||
| import org.apache.flink.api.scala.typeutils.CaseClassSerializer | ||
| import org.apache.flink.core.memory.DataInputViewStreamWrapper | ||
| import org.junit.Assert.{assertEquals, assertFalse, assertNotNull, assertTrue} | ||
| import org.junit.Test | ||
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| /** | ||
| * Test for ensuring backwards compatibility of tuples and case classes across Scala versions. | ||
| */ | ||
| class TupleSerializerCompatibilityTest { | ||
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| @Test | ||
| def testCompatibilityWithFlink_1_3(): Unit = { | ||
| var is: InputStream = null | ||
| try { | ||
| is = getClass.getClassLoader.getResourceAsStream(SNAPSHOT_RESOURCE) | ||
| val snapshotIn = new DataInputViewStreamWrapper(is) | ||
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| val deserialized = TypeSerializerSerializationUtil.readSerializersAndConfigsWithResilience( | ||
| snapshotIn, | ||
| getClass.getClassLoader) | ||
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| assertEquals(1, deserialized.size) | ||
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| val oldSerializer = deserialized.get(0).f0 | ||
| val oldConfigSnapshot = deserialized.get(0).f1 | ||
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| // test serializer and config snapshot | ||
| assertNotNull(oldSerializer) | ||
| assertNotNull(oldConfigSnapshot) | ||
| assertTrue(oldSerializer.isInstanceOf[CaseClassSerializer[_]]) | ||
| assertTrue(oldConfigSnapshot.isInstanceOf[TupleSerializerConfigSnapshot[_]]) | ||
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| val currentSerializer = createTypeInformation[TestCaseClass] | ||
| .createSerializer(new ExecutionConfig()) | ||
| assertFalse(currentSerializer.ensureCompatibility(oldConfigSnapshot).isRequiresMigration) | ||
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| // test old data serialization | ||
| is.close() | ||
| is = getClass.getClassLoader.getResourceAsStream(DATA_RESOURCE) | ||
| var dataIn = new DataInputViewStreamWrapper(is) | ||
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| assertEquals(TEST_DATA_1, oldSerializer.deserialize(dataIn)) | ||
| assertEquals(TEST_DATA_2, oldSerializer.deserialize(dataIn)) | ||
| assertEquals(TEST_DATA_3, oldSerializer.deserialize(dataIn)) | ||
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| // test new data serialization | ||
| is.close() | ||
| is = getClass.getClassLoader.getResourceAsStream(DATA_RESOURCE) | ||
| dataIn = new DataInputViewStreamWrapper(is) | ||
| assertEquals(TEST_DATA_1, currentSerializer.deserialize(dataIn)) | ||
| assertEquals(TEST_DATA_2, currentSerializer.deserialize(dataIn)) | ||
| assertEquals(TEST_DATA_3, currentSerializer.deserialize(dataIn)) | ||
| } finally { | ||
| if (is != null) { | ||
| is.close() | ||
| } | ||
| } | ||
| } | ||
| } |
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.../scala/org/apache/flink/api/scala/runtime/TupleSerializerCompatibilityTestGenerator.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.flink.api.scala.runtime | ||
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| import java.io.FileOutputStream | ||
| import java.util.Collections | ||
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| import org.apache.flink.api.common.ExecutionConfig | ||
| import org.apache.flink.api.common.typeutils.TypeSerializerSerializationUtil | ||
| import org.apache.flink.core.memory.DataOutputViewStreamWrapper | ||
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| /** | ||
| * Run this code on a 1.3 (or earlier) branch to generate the test data | ||
| * for the [[TupleSerializerCompatibilityTest]]. | ||
| * | ||
| * This generator is a separate file because a companion object would have side-effects on the | ||
| * annotated classes generated by Scala. | ||
| */ | ||
| object TupleSerializerCompatibilityTestGenerator { | ||
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| case class TestCaseClass( | ||
| i: Int, | ||
| e: Either[String, Unit], | ||
| t2: (Boolean, String), | ||
| t1: (Double), | ||
| t2ii: (Int, Int)) | ||
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| val TEST_DATA_1 = TestCaseClass(42, Left("Hello"), (false, "what?"), 12.2, (12, 12)) | ||
| val TEST_DATA_2 = TestCaseClass(42, Right(), (false, "what?"), 12.2, (100, 200)) | ||
| val TEST_DATA_3 = TestCaseClass(100, Left("Hello"), (true, "what?"), 14.2, (-1, Int.MinValue)) | ||
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| val SNAPSHOT_RESOURCE: String = "flink-1.3.2-scala-types-serializer-snapshot" | ||
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| val DATA_RESOURCE: String = "flink-1.3.2-scala-types-serializer-data" | ||
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| val SNAPSHOT_OUTPUT_PATH: String = "/tmp/snapshot/" + SNAPSHOT_RESOURCE | ||
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| val DATA_OUTPUT_PATH: String = "/tmp/snapshot/" + DATA_RESOURCE | ||
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| def main(args: Array[String]): Unit = { | ||
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| val typeInfo = org.apache.flink.api.scala.createTypeInformation[TestCaseClass] | ||
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| val serializer = typeInfo.createSerializer(new ExecutionConfig()) | ||
| val configSnapshot = serializer.snapshotConfiguration() | ||
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| var fos: FileOutputStream = null | ||
| try { | ||
| fos = new FileOutputStream(SNAPSHOT_OUTPUT_PATH) | ||
| val out = new DataOutputViewStreamWrapper(fos) | ||
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| TypeSerializerSerializationUtil.writeSerializersAndConfigsWithResilience( | ||
| out, | ||
| Collections.singletonList( | ||
| new org.apache.flink.api.java.tuple.Tuple2(serializer, configSnapshot) | ||
| ) | ||
| ) | ||
| } finally { | ||
| if (fos != null) { | ||
| fos.close() | ||
| } | ||
| } | ||
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| fos = null | ||
| try { | ||
| fos = new FileOutputStream(DATA_OUTPUT_PATH) | ||
| val out = new DataOutputViewStreamWrapper(fos) | ||
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| serializer.serialize(TEST_DATA_1, out) | ||
| serializer.serialize(TEST_DATA_2, out) | ||
| serializer.serialize(TEST_DATA_3, out) | ||
| } finally { | ||
| if (fos != null) { | ||
| fos.close() | ||
| } | ||
| } | ||
| } | ||
| } |