| /* |
| * 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.drill.exec.store.sys; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| public class PStoreTestUtil { |
| |
| public static void test(PersistentStoreProvider provider) throws Exception { |
| PersistentStore<String> store = provider.getOrCreateStore( |
| PersistentStoreConfig.newJacksonBuilder(String.class) |
| .name("sys.test") |
| .build() |
| ); |
| try { |
| Map<String, String> expectedMap = new HashMap<>(); |
| expectedMap.put("first", "value1"); |
| expectedMap.put("second", "value2"); |
| expectedMap.forEach(store::put); |
| waitForNumProps(store, expectedMap.size()); |
| |
| Iterator<Map.Entry<String, String>> iter = store.getAll(); |
| for(int i =0; i < expectedMap.size(); i++) { |
| Entry<String, String> storeEntry = iter.next(); |
| |
| assertTrue(String.format("This element wasn't added to PStore, storeEntry: %s", storeEntry), |
| expectedMap.containsKey(storeEntry.getKey())); |
| |
| String expectedValue = expectedMap.get(storeEntry.getKey()); |
| assertEquals(String.format("The value is different in PStore for this key: %s. Expected value: %s, Actual: %s", |
| storeEntry.getKey(), expectedValue, storeEntry.getValue()), expectedValue, storeEntry.getValue()); |
| } |
| |
| assertFalse(iter.hasNext()); |
| } finally { |
| Iterator<Map.Entry<String, String>> iter = store.getAll(); |
| while(iter.hasNext()) { |
| final String key = iter.next().getKey(); |
| store.delete(key); |
| } |
| |
| waitForNumProps(store, 0); |
| assertFalse(store.getAll().hasNext()); |
| } |
| } |
| |
| /** |
| * Wait for store caches to update, this is necessary because ZookeeperClient caches can update asynchronously |
| * in some cases. |
| * |
| * @param store PersistentStore |
| * @param expected num props |
| * @throws InterruptedException will fail this test once arises |
| */ |
| private static void waitForNumProps(PersistentStore store, int expected) throws InterruptedException { |
| while(getNumProps(store) < expected) { |
| Thread.sleep(100L); |
| } |
| } |
| |
| private static int getNumProps(PersistentStore store) { |
| Iterator<Map.Entry<String, String>> iter = store.getAll(); |
| |
| int numProps = 0; |
| |
| while (iter.hasNext()) { |
| iter.next(); |
| numProps++; |
| } |
| |
| return numProps; |
| } |
| } |