| /* |
| * 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 com.epam.datalab.backendapi.core.response.folderlistener; |
| |
| import com.epam.datalab.backendapi.core.FileHandlerCallback; |
| import com.epam.datalab.util.ServiceUtils; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.util.concurrent.ExecutionException; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class FolderListenerTest { |
| private final long maxWaitTimeoutMillis = 30000; |
| |
| private final long timeoutMillis = 2000; |
| |
| private final long fileLengthCheckDelay = 1000; |
| |
| private boolean handleResult = true; |
| |
| public class FileHandler implements FileHandlerCallback { |
| private final String uuid; |
| |
| public FileHandler(String uuid) { |
| this.uuid = uuid; |
| } |
| |
| @Override |
| public String getUUID() { |
| return uuid; |
| } |
| |
| @Override |
| public boolean checkUUID(String uuid) { |
| return this.uuid.equals(uuid); |
| } |
| |
| @Override |
| public boolean handle(String fileName, byte[] content) throws Exception { |
| if (!handleResult) { |
| throw new Exception("Test exception"); |
| } |
| return handleResult; |
| } |
| |
| @Override |
| public void handleError(String errorMessage) { |
| System.out.println("handleError called for UUID " + getUUID()); |
| } |
| |
| @Override |
| public String getUser() { |
| return null; |
| } |
| } |
| |
| private String getFileName(String uuid) { |
| return "FolderListenerTest_" + uuid + ".json"; |
| } |
| |
| private String getDirectory() { |
| return ServiceUtils.getUserDir(); |
| } |
| |
| private void removeFile(String uuid) throws IOException { |
| File file = new File(getDirectory(), getFileName(uuid)); |
| if (file.exists()) { |
| file.delete(); |
| } |
| } |
| |
| private void createFile(String uuid) throws IOException { |
| File file = new File(getDirectory(), getFileName(uuid)); |
| removeFile(uuid); |
| FileWriter f = new FileWriter(file); |
| |
| f.write("test"); |
| f.flush(); |
| f.close(); |
| } |
| |
| |
| private void processFile(WatchItem item) throws InterruptedException, IOException { |
| long expiredTime = System.currentTimeMillis() + maxWaitTimeoutMillis; |
| while (!FolderListener.getListeners().isEmpty() && |
| !FolderListener.getListeners().get(0).isListen()) { |
| if (expiredTime < System.currentTimeMillis()) { |
| throw new InterruptedException("Timeout has been expired"); |
| } |
| Thread.sleep(100); |
| } |
| |
| expiredTime = System.currentTimeMillis() + maxWaitTimeoutMillis; |
| while (item.getFuture() == null) { |
| if (expiredTime < System.currentTimeMillis()) { |
| throw new InterruptedException("Timeout has been expired"); |
| } |
| Thread.sleep(100); |
| } |
| } |
| |
| @Test |
| public void listen() throws InterruptedException, ExecutionException, IOException { |
| Integer uuid = 1; |
| FileHandlerCallback fHandler; |
| WatchItem item; |
| |
| handleResult = false; |
| fHandler = new FileHandler(uuid.toString()); |
| item = FolderListener.listen(getDirectory(), fHandler, timeoutMillis, fileLengthCheckDelay, null); |
| FolderListener listener = FolderListener.getListeners().get(0); |
| assertEquals(false, listener.isListen()); |
| assertEquals(true, listener.isAlive()); |
| System.out.println("TEST process FALSE"); |
| |
| uuid = 2; |
| createFile(uuid.toString()); |
| fHandler = new FileHandler(uuid.toString()); |
| item = FolderListener.listen(getDirectory(), fHandler, timeoutMillis, fileLengthCheckDelay, null); |
| processFile(item); |
| assertEquals(true, listener.isListen()); |
| assertEquals(false, item.getFutureResultSync()); |
| assertEquals(false, item.getFutureResult()); |
| |
| System.out.println("TEST process TRUE"); |
| uuid = 3; |
| handleResult = true; |
| createFile(uuid.toString()); |
| fHandler = new FileHandler(uuid.toString()); |
| item = FolderListener.listen(getDirectory(), fHandler, timeoutMillis, fileLengthCheckDelay, null); |
| processFile(item); |
| assertEquals(true, item.getFutureResultSync()); |
| assertEquals(true, item.getFutureResult()); |
| |
| System.out.println("TEST process with out listen"); |
| uuid = 4; |
| createFile(uuid.toString()); |
| fHandler = new FileHandler(uuid.toString()); |
| item = FolderListener.listen(getDirectory(), fHandler, timeoutMillis, fileLengthCheckDelay, getFileName(uuid |
| .toString()), null); |
| |
| long expiredTime = System.currentTimeMillis() + maxWaitTimeoutMillis; |
| while (item.getFuture() == null) { |
| if (expiredTime < System.currentTimeMillis()) { |
| throw new InterruptedException("Timeout has been expired"); |
| } |
| Thread.sleep(100); |
| } |
| assertEquals(true, item.getFutureResultSync()); |
| assertEquals(true, item.getFutureResult()); |
| |
| FolderListener.terminateAll(); |
| expiredTime = System.currentTimeMillis() + maxWaitTimeoutMillis; |
| while (FolderListener.getListeners().size() > 0) { |
| if (expiredTime < System.currentTimeMillis()) { |
| throw new InterruptedException("Timeout has been expired"); |
| } |
| Thread.sleep(100); |
| } |
| |
| System.out.println("All listen tests passed"); |
| |
| |
| for (int i = 1; i <= uuid; i++) { |
| removeFile(String.valueOf(i)); |
| } |
| } |
| |
| } |