hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncTableScanner.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.client;
  19
  20 import java.util.ArrayList;
  21 import java.util.List;
  22 import java.util.concurrent.ForkJoinPool;
  23 import java.util.function.Supplier;
  24 import org.apache.hadoop.hbase.HBaseClassTestRule;
  25 import org.apache.hadoop.hbase.testclassification.ClientTests;
  26 import org.apache.hadoop.hbase.testclassification.LargeTests;
  27 import org.junit.ClassRule;
  28 import org.junit.experimental.categories.Category;
  29 import org.junit.runner.RunWith;
  30 import org.junit.runners.Parameterized;
  31 import org.junit.runners.Parameterized.Parameter;
  32 import org.junit.runners.Parameterized.Parameters;
  33
  34 @RunWith(Parameterized.class)
  35 @Category({ LargeTests.class, ClientTests.class })
  36 public class TestAsyncTableScanner extends AbstractTestAsyncTableScan {
  37
  38   @ClassRule
  39   public static final HBaseClassTestRule CLASS_RULE =
  40       HBaseClassTestRule.forClass(TestAsyncTableScanner.class);
  41
  42   @Parameter(0)
  43   public String tableType;
  44
  45   @Parameter(1)
  46   public Supplier<AsyncTable<?>> getTable;
  47
  48   @Parameter(2)
  49   public String scanType;
  50
  51   @Parameter(3)
  52   public Supplier<Scan> scanCreator;
  53
  54   @Parameters(name = "{index}: table={0}, scan={2}")
  55   public static List<Object[]> params() {
  56     return getTableAndScanCreatorParams();
  57   }
  58
  59   @Override
  60   protected Scan createScan() {
  61     return scanCreator.get();
  62   }
  63
  64   @Override
  65   protected List<Result> doScan(Scan scan) throws Exception {
  66     AsyncTable<?> table = ASYNC_CONN.getTable(TABLE_NAME, ForkJoinPool.commonPool());
  67     List<Result> results = new ArrayList<>();
  68     try (ResultScanner scanner = table.getScanner(scan)) {
  69       for (Result result; (result = scanner.next()) != null;) {
  70         results.add(result);
  71       }
  72     }
  73     if (scan.getBatch() > 0) {
  74       results = convertFromBatchResult(results);
  75     }
  76     return results;
  77   }
  78 }