| /* |
| * 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.dfs; |
| |
| import org.apache.drill.exec.ops.OpProfileDef; |
| import org.apache.drill.exec.ops.OperatorStats; |
| import org.apache.drill.exec.proto.UserBitShared.OperatorProfile; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.InputStream; |
| import java.io.PrintWriter; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| public class TestDrillFileSystem { |
| |
| private static String tempFilePath; |
| |
| @BeforeClass |
| public static void createTempFile() throws Exception { |
| |
| File tempFile; |
| while (true) { |
| tempFile = File.createTempFile("drillFSTest", ".txt"); |
| if (tempFile.exists()) { |
| boolean success = tempFile.delete(); |
| if (success) { |
| break; |
| } |
| } |
| } |
| |
| // Write some data |
| PrintWriter printWriter = new PrintWriter(tempFile); |
| for (int i=1; i<=200000; i++) { |
| printWriter.println (String.format("%d, key_%d", i, i)); |
| } |
| printWriter.close(); |
| |
| tempFilePath = tempFile.getPath(); |
| } |
| |
| @Test |
| public void testIOStats() throws Exception { |
| DrillFileSystem dfs = null; |
| InputStream is = null; |
| Configuration conf = new Configuration(); |
| conf.set(FileSystem.FS_DEFAULT_NAME_KEY, FileSystem.DEFAULT_FS); |
| OpProfileDef profileDef = new OpProfileDef(0 /*operatorId*/, 0 /*operatorType*/, 0 /*inputCount*/); |
| OperatorStats stats = new OperatorStats(profileDef, null /*allocator*/); |
| |
| // start wait time method in OperatorStats expects the OperatorStats state to be in "processing" |
| stats.startProcessing(); |
| |
| try { |
| dfs = new DrillFileSystem(conf, stats); |
| is = dfs.open(new Path(tempFilePath)); |
| |
| byte[] buf = new byte[8000]; |
| while (is.read(buf, 0, buf.length) != -1) { |
| } |
| } finally { |
| stats.stopProcessing(); |
| |
| if (is != null) { |
| is.close(); |
| } |
| |
| if (dfs != null) { |
| dfs.close(); |
| } |
| } |
| |
| OperatorProfile operatorProfile = stats.getProfile(); |
| assertTrue("Expected wait time is non-zero, but got zero wait time", operatorProfile.getWaitNanos() > 0); |
| } |
| |
| @AfterClass |
| public static void deleteTempFile() throws Exception { |
| new File(tempFilePath).delete(); |
| } |
| |
| } |