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/*
* 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.spark.sql.execution.joins
import java.io.{ByteArrayInputStream, ByteArrayOutputStream, ObjectInputStream, ObjectOutputStream}
import org.apache.spark.{SparkConf, SparkFunSuite}
import org.apache.spark.memory.{StaticMemoryManager, TaskMemoryManager}
import org.apache.spark.sql.catalyst.InternalRow
import org.apache.spark.sql.catalyst.expressions._
import org.apache.spark.sql.test.SharedSQLContext
import org.apache.spark.sql.types.{IntegerType, StructField, StructType}
import org.apache.spark.unsafe.map.BytesToBytesMap
import org.apache.spark.util.collection.CompactBuffer
class HashedRelationSuite extends SparkFunSuite with SharedSQLContext {
val mm = new TaskMemoryManager(
new StaticMemoryManager(
new SparkConf().set("spark.memory.offHeap.enabled", "false"),
Long.MaxValue,
Long.MaxValue,
1),
0)
test("UnsafeHashedRelation") {
val schema = StructType(StructField("a", IntegerType, true) :: Nil)
val data = Array(InternalRow(0), InternalRow(1), InternalRow(2), InternalRow(2))
val toUnsafe = UnsafeProjection.create(schema)
val unsafeData = data.map(toUnsafe(_).copy())
val buildKey = Seq(BoundReference(0, IntegerType, false))
val hashed = UnsafeHashedRelation(unsafeData.iterator, buildKey, 1, mm)
assert(hashed.isInstanceOf[UnsafeHashedRelation])
assert(hashed.get(unsafeData(0)).toArray === Array(unsafeData(0)))
assert(hashed.get(unsafeData(1)).toArray === Array(unsafeData(1)))
assert(hashed.get(toUnsafe(InternalRow(10))) === null)
val data2 = CompactBuffer[InternalRow](unsafeData(2).copy())
data2 += unsafeData(2).copy()
assert(hashed.get(unsafeData(2)).toArray === data2.toArray)
val os = new ByteArrayOutputStream()
val out = new ObjectOutputStream(os)
hashed.asInstanceOf[UnsafeHashedRelation].writeExternal(out)
out.flush()
val in = new ObjectInputStream(new ByteArrayInputStream(os.toByteArray))
val hashed2 = new UnsafeHashedRelation()
hashed2.readExternal(in)
assert(hashed2.get(unsafeData(0)).toArray === Array(unsafeData(0)))
assert(hashed2.get(unsafeData(1)).toArray === Array(unsafeData(1)))
assert(hashed2.get(toUnsafe(InternalRow(10))) === null)
assert(hashed2.get(unsafeData(2)).toArray === data2)
val os2 = new ByteArrayOutputStream()
val out2 = new ObjectOutputStream(os2)
hashed2.asInstanceOf[UnsafeHashedRelation].writeExternal(out2)
out2.flush()
// This depends on that the order of items in BytesToBytesMap.iterator() is exactly the same
// as they are inserted
assert(java.util.Arrays.equals(os2.toByteArray, os.toByteArray))
}
test("test serialization empty hash map") {
val taskMemoryManager = new TaskMemoryManager(
new StaticMemoryManager(
new SparkConf().set("spark.memory.offHeap.enabled", "false"),
Long.MaxValue,
Long.MaxValue,
1),
0)
val binaryMap = new BytesToBytesMap(taskMemoryManager, 1, 1)
val os = new ByteArrayOutputStream()
val out = new ObjectOutputStream(os)
val hashed = new UnsafeHashedRelation(1, binaryMap)
hashed.writeExternal(out)
out.flush()
val in = new ObjectInputStream(new ByteArrayInputStream(os.toByteArray))
val hashed2 = new UnsafeHashedRelation()
hashed2.readExternal(in)
val schema = StructType(StructField("a", IntegerType, true) :: Nil)
val toUnsafe = UnsafeProjection.create(schema)
val row = toUnsafe(InternalRow(0))
assert(hashed2.get(row) === null)
val os2 = new ByteArrayOutputStream()
val out2 = new ObjectOutputStream(os2)
hashed2.writeExternal(out2)
out2.flush()
assert(java.util.Arrays.equals(os2.toByteArray, os.toByteArray))
}
test("LongToUnsafeRowMap") {
val unsafeProj = UnsafeProjection.create(
Seq(BoundReference(0, IntegerType, false), BoundReference(1, IntegerType, true)))
val rows = (0 until 100).map(i => unsafeProj(InternalRow(i, i + 1)).copy())
val key = Seq(BoundReference(0, IntegerType, false))
val longRelation = LongHashedRelation(rows.iterator, key, 10, mm)
assert(longRelation.keyIsUnique)
(0 until 100).foreach { i =>
val row = longRelation.getValue(i)
assert(row.getInt(0) === i)
assert(row.getInt(1) === i + 1)
}
val longRelation2 = LongHashedRelation(rows.iterator ++ rows.iterator, key, 100, mm)
assert(!longRelation2.keyIsUnique)
(0 until 100).foreach { i =>
val rows = longRelation2.get(i).toArray
assert(rows.length === 2)
assert(rows(0).getInt(0) === i)
assert(rows(0).getInt(1) === i + 1)
assert(rows(1).getInt(0) === i)
assert(rows(1).getInt(1) === i + 1)
}
val os = new ByteArrayOutputStream()
val out = new ObjectOutputStream(os)
longRelation2.writeExternal(out)
out.flush()
val in = new ObjectInputStream(new ByteArrayInputStream(os.toByteArray))
val relation = new LongHashedRelation()
relation.readExternal(in)
assert(!relation.keyIsUnique)
(0 until 100).foreach { i =>
val rows = relation.get(i).toArray
assert(rows.length === 2)
assert(rows(0).getInt(0) === i)
assert(rows(0).getInt(1) === i + 1)
assert(rows(1).getInt(0) === i)
assert(rows(1).getInt(1) === i + 1)
}
}
}
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