| /* |
| * 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.tika.eval.app.db; |
| |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.sql.SQLException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Random; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.CompletionService; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.ExecutorCompletionService; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.junit.Test; |
| |
| public class AbstractBufferTest { |
| |
| |
| @Test(timeout = 30000) |
| public void runTest() throws InterruptedException, ExecutionException { |
| List<String> keys = new ArrayList<>(); |
| Collections |
| .addAll(keys, new String[]{"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k"}); |
| |
| int numGets = 100; |
| int numTesters = 20; |
| AbstractDBBuffer b = new TestBuffer(); |
| |
| |
| ExecutorService ex = Executors.newFixedThreadPool(numTesters); |
| CompletionService<MyTestResult> completionService = new ExecutorCompletionService<>(ex); |
| for (int i = 0; i < numTesters; i++) { |
| completionService.submit(new Tester(keys, b, numGets)); |
| } |
| |
| int results = 0; |
| Map<String, Integer> combined = new HashMap<>(); |
| while (results < numTesters) { |
| Future<MyTestResult> futureResult = completionService.poll(1, TimeUnit.SECONDS); |
| if (futureResult != null) { |
| results++; |
| assertEquals(keys.size(), futureResult.get().getMap().keySet().size()); |
| for (Map.Entry<String, Integer> e : futureResult.get().getMap().entrySet()) { |
| if (!combined.containsKey(e.getKey())) { |
| combined.put(e.getKey(), e.getValue()); |
| } else { |
| assertEquals(combined.get(e.getKey()), e.getValue()); |
| } |
| } |
| } |
| } |
| assertEquals(keys.size(), b.getNumWrites()); |
| } |
| |
| private class Tester implements Callable<MyTestResult> { |
| |
| private final AbstractDBBuffer dbBuffer; |
| private final int numGets; |
| List<String> keys = new ArrayList<>(); |
| private Random r = new Random(); |
| private Map<String, Integer> m = new HashMap<>(); |
| |
| private Tester(List<String> inputKeys, AbstractDBBuffer buffer, int numGets) { |
| keys.addAll(inputKeys); |
| dbBuffer = buffer; |
| this.numGets = numGets; |
| } |
| |
| @Override |
| public MyTestResult call() throws Exception { |
| |
| |
| for (int i = 0; i < numGets; i++) { |
| int index = r.nextInt(keys.size()); |
| String k = keys.get(index); |
| if (k == null) { |
| throw new RuntimeException("keys can't be null"); |
| } |
| Integer expected = m.get(k); |
| Integer val = dbBuffer.getId(k); |
| if (val == null) { |
| throw new RuntimeException("Val can't be null!"); |
| } |
| if (expected != null) { |
| assertEquals(expected, val); |
| } |
| m.put(k, val); |
| } |
| |
| //now add the val for every key |
| //just in case the rand() process didn't hit |
| //all indices |
| for (String k : keys) { |
| Integer val = dbBuffer.getId(k); |
| m.put(k, val); |
| } |
| MyTestResult r = new MyTestResult(m); |
| return r; |
| } |
| } |
| |
| private static class MyTestResult { |
| Map<String, Integer> m; |
| |
| private MyTestResult(Map<String, Integer> m) { |
| this.m = m; |
| } |
| |
| private Map<String, Integer> getMap() { |
| return m; |
| } |
| |
| @Override |
| public String toString() { |
| return "MyTester: " + m.size(); |
| } |
| } |
| |
| private static class TestBuffer extends AbstractDBBuffer { |
| @Override |
| public void write(int id, String value) throws RuntimeException { |
| try { |
| Thread.sleep(100); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Override |
| public void close() throws SQLException { |
| //no-op |
| } |
| } |
| } |