| /* |
| * 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.samza.storage; |
| |
| import java.io.File; |
| import java.nio.file.Path; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| |
| import java.util.List; |
| import java.util.Optional; |
| import org.apache.samza.checkpoint.CheckpointId; |
| import org.apache.samza.system.ChangelogSSPIterator; |
| import org.apache.samza.system.IncomingMessageEnvelope; |
| import org.apache.samza.system.SystemStreamPartition; |
| |
| /** |
| * A mock StorageEngine that stores what it receives from the StorageEngine. |
| * Those variables/values can be retrieved directly by variable names. |
| */ |
| public class MockStorageEngine implements StorageEngine { |
| |
| public static String storeName; |
| public static File storeDir; |
| public static SystemStreamPartition ssp; |
| |
| // Thread-safe list is required because the list is shared across StorageEngine instances |
| public static List<IncomingMessageEnvelope> incomingMessageEnvelopes = Collections.synchronizedList(new ArrayList<>()); |
| public static StoreProperties storeProperties; |
| |
| public MockStorageEngine(String storeName, File storeDir, SystemStreamPartition changeLogSystemStreamPartition, StoreProperties properties) { |
| MockStorageEngine.storeName = storeName; |
| MockStorageEngine.storeDir = storeDir; |
| MockStorageEngine.ssp = changeLogSystemStreamPartition; |
| MockStorageEngine.storeProperties = properties; |
| } |
| |
| @Override |
| public void restore(ChangelogSSPIterator messagesToRestore) { |
| while (messagesToRestore.hasNext()) { |
| incomingMessageEnvelopes.add(messagesToRestore.next()); |
| } |
| } |
| |
| @Override |
| public void flush() { |
| } |
| |
| @Override |
| public Optional<Path> checkpoint(CheckpointId id) { |
| return Optional.empty(); |
| } |
| |
| @Override |
| public void stop() { |
| } |
| |
| @Override |
| public StoreProperties getStoreProperties() { |
| return storeProperties; |
| } |
| } |