| /* |
| * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.jfr.event.io; |
| |
| import static jdk.test.lib.Asserts.assertEquals; |
| import static jdk.test.lib.Asserts.assertNotEquals; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.RandomAccessFile; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.FileChannel; |
| |
| import jdk.jfr.Recording; |
| import jdk.jfr.consumer.RecordedEvent; |
| import jdk.test.lib.jfr.Events; |
| |
| /* |
| * @test |
| * @summary Test with FlightRecorder enabled but with the events disabled. |
| * @key jfr |
| * @library /test/lib /test/jdk |
| * @run main/othervm jdk.jfr.event.io.TestDisabledEvents |
| */ |
| |
| // Verify that IO operations are correct and that no events are generated. |
| public class TestDisabledEvents { |
| |
| private static final int writeInt = 'A'; |
| private static final byte[] writeBuf = { 'B', 'C', 'D' }; |
| |
| public static void main(String[] args) throws Throwable { |
| File tmp = File.createTempFile("TestDisabledEvents", ".tmp", new File(".")); |
| tmp.deleteOnExit(); |
| Recording recording = new Recording(); |
| recording.disable(IOEvent.EVENT_FILE_READ); |
| recording.disable(IOEvent.EVENT_FILE_WRITE); |
| recording.start(); |
| |
| useRandomAccessFile(tmp); |
| useFileStreams(tmp); |
| useFileChannel(tmp); |
| |
| recording.stop(); |
| for (RecordedEvent event : Events.fromRecording(recording)) { |
| final String eventName = event.getEventType().getName(); |
| System.out.println("Got eventName:" + eventName); |
| assertNotEquals(eventName, IOEvent.EVENT_FILE_READ, "Got disabled read event"); |
| assertNotEquals(eventName, IOEvent.EVENT_FILE_WRITE, "Got disabled write event"); |
| } |
| } |
| |
| private static void useRandomAccessFile(File tmp) throws Throwable { |
| tmp.delete(); |
| try (RandomAccessFile ras = new RandomAccessFile(tmp, "rw")) { |
| ras.write(writeInt); |
| ras.write(writeBuf); |
| ras.seek(0); |
| int readInt = ras.read(); |
| assertEquals(readInt, writeInt, "Wrong readInt"); |
| byte[] readBuf = new byte[writeBuf.length]; |
| int readSize = ras.read(readBuf); |
| assertEquals(readSize, writeBuf.length, "Wrong readSize"); |
| // Try to read more which should generate EOF. |
| readInt = ras.read(); |
| assertEquals(readInt, -1, "Wrong readInt after EOF"); |
| } |
| } |
| |
| private static void useFileStreams(File tmp) throws Throwable { |
| tmp.delete(); |
| try (FileOutputStream fos = new FileOutputStream(tmp)) { |
| fos.write(writeInt); |
| fos.write(writeBuf); |
| } |
| |
| try (FileInputStream fis = new FileInputStream(tmp)) { |
| int readInt = fis.read(); |
| assertEquals(readInt, writeInt, "Wrong readInt"); |
| byte[] readBuf = new byte[writeBuf.length]; |
| int readSize = fis.read(readBuf); |
| assertEquals(readSize, writeBuf.length, "Wrong readSize"); |
| // Try to read more which should generate EOF. |
| readInt = fis.read(); |
| assertEquals(readInt, -1, "Wrong readInt after EOF"); |
| } |
| } |
| |
| private static void useFileChannel(File tmp) throws Throwable { |
| tmp.delete(); |
| try (RandomAccessFile rf = new RandomAccessFile(tmp, "rw"); |
| FileChannel ch = rf.getChannel()) { |
| final String bufContent = "0123456789"; |
| final int bufSize = bufContent.length(); |
| ByteBuffer writeBuf = ByteBuffer.allocateDirect(bufSize); |
| writeBuf.put(bufContent.getBytes()); |
| |
| writeBuf.flip(); |
| int writeSize = ch.write(writeBuf); |
| assertEquals(writeSize, bufSize, "Wrong writeSize for FileChannel"); |
| |
| ch.position(0); |
| ByteBuffer readBuf = ByteBuffer.allocateDirect(bufSize); |
| int readSize = ch.read(readBuf); |
| assertEquals(readSize, bufSize, "Wrong readSize full for FileChannel"); |
| assertEquals(0, writeBuf.compareTo(readBuf), "Unexpected readBuf content"); |
| } |
| } |
| } |