| /* |
| * 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.phoenix.iterate; |
| |
| import static org.apache.phoenix.query.QueryConstants.SINGLE_COLUMN; |
| import static org.apache.phoenix.query.QueryConstants.SINGLE_COLUMN_FAMILY; |
| |
| import java.util.Arrays; |
| |
| import org.apache.hadoop.hbase.KeyValue; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.phoenix.memory.DelegatingMemoryManager; |
| import org.apache.phoenix.memory.GlobalMemoryManager; |
| import org.apache.phoenix.memory.MemoryManager; |
| import org.apache.phoenix.monitoring.MemoryMetricsHolder; |
| import org.apache.phoenix.monitoring.SpoolingMetricsHolder; |
| import org.apache.phoenix.query.QueryServicesOptions; |
| import org.apache.phoenix.schema.tuple.SingleKeyValueTuple; |
| import org.apache.phoenix.schema.tuple.Tuple; |
| import org.apache.phoenix.util.AssertResults; |
| import org.junit.Test; |
| |
| |
| |
| public class SpoolingResultIteratorTest { |
| private final static byte[] A = Bytes.toBytes("a"); |
| private final static byte[] B = Bytes.toBytes("b"); |
| |
| private void testSpooling(int threshold, long maxSizeSpool) throws Throwable { |
| Tuple[] results = new Tuple[] { |
| new SingleKeyValueTuple(new KeyValue(A, SINGLE_COLUMN_FAMILY, SINGLE_COLUMN, Bytes.toBytes(1))), |
| new SingleKeyValueTuple(new KeyValue(B, SINGLE_COLUMN_FAMILY, SINGLE_COLUMN, Bytes.toBytes(1))), |
| }; |
| PeekingResultIterator iterator = new MaterializedResultIterator(Arrays.asList(results)); |
| |
| Tuple[] expectedResults = new Tuple[] { |
| new SingleKeyValueTuple(new KeyValue(A, SINGLE_COLUMN_FAMILY, SINGLE_COLUMN, Bytes.toBytes(1))), |
| new SingleKeyValueTuple(new KeyValue(B, SINGLE_COLUMN_FAMILY, SINGLE_COLUMN, Bytes.toBytes(1))), |
| }; |
| |
| MemoryManager memoryManager = new DelegatingMemoryManager(new GlobalMemoryManager(threshold, 0)); |
| ResultIterator scanner = new SpoolingResultIterator(SpoolingMetricsHolder.NO_OP_INSTANCE, MemoryMetricsHolder.NO_OP_INSTANCE, iterator, memoryManager, threshold, maxSizeSpool,"/tmp"); |
| AssertResults.assertResults(scanner, expectedResults); |
| } |
| |
| @Test |
| public void testInMemorySpooling() throws Throwable { |
| testSpooling(1024*1024, QueryServicesOptions.DEFAULT_MAX_SPOOL_TO_DISK_BYTES); |
| } |
| @Test |
| public void testOnDiskSpooling() throws Throwable { |
| testSpooling(1, QueryServicesOptions.DEFAULT_MAX_SPOOL_TO_DISK_BYTES); |
| } |
| |
| @Test(expected = SpoolTooBigToDiskException.class) |
| public void testFailToSpool() throws Throwable{ |
| testSpooling(1, 0L); |
| } |
| } |