| /* |
| * 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.fail; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.RandomAccessFile; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.FileChannel; |
| import java.time.Duration; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import jdk.jfr.Recording; |
| import jdk.jfr.consumer.RecordedEvent; |
| import jdk.test.lib.jfr.Events; |
| |
| /* |
| * @test |
| * @key jfr |
| * @library /test/lib /test/jdk |
| * @run main/othervm jdk.jfr.event.io.TestFileReadOnly |
| */ |
| public class TestFileReadOnly { |
| |
| public static void main(String[] args) throws Throwable { |
| File tmp = File.createTempFile("TestFileReadOnly", ".tmp", new File(".")); |
| tmp.deleteOnExit(); |
| Recording recording = new Recording(); |
| List<IOEvent> expectedEvents = new ArrayList<>(); |
| |
| recording.enable(IOEvent.EVENT_FILE_READ).withThreshold(Duration.ofMillis(0)); |
| recording.enable(IOEvent.EVENT_FILE_WRITE).withThreshold(Duration.ofMillis(0)); |
| recording.start(); |
| |
| final byte[] buf = { 1, 2, 3 }; |
| |
| // Create the file. |
| try (RandomAccessFile f = new RandomAccessFile(tmp, "rw")) { |
| f.write(buf); |
| expectedEvents.add(IOEvent.createFileWriteEvent(buf.length, tmp)); |
| } |
| |
| // Reopen the file as ReadOnly and try to write to it. |
| // Should generate an event with bytesWritten = -1. |
| try (RandomAccessFile f = new RandomAccessFile(tmp, "r")) { |
| try { |
| f.write(buf); |
| fail("No exception for ReadOnly File"); |
| } catch (IOException e) { |
| // Expected exception |
| expectedEvents.add(IOEvent.createFileWriteEvent(-1, tmp)); |
| } |
| } |
| |
| // Try to write to read-only FileChannel. |
| try (RandomAccessFile f = new RandomAccessFile(tmp, "r"); FileChannel ch = f.getChannel()) { |
| ByteBuffer writeBuf = ByteBuffer.allocateDirect(buf.length); |
| writeBuf.put(buf); |
| writeBuf.flip(); |
| ch.position(0); |
| try { |
| ch.write(writeBuf); |
| fail("No exception for ReadOnly FileChannel"); |
| } catch (java.nio.channels.NonWritableChannelException e) { |
| // Expected exception |
| expectedEvents.add(IOEvent.createFileWriteEvent(-1, tmp)); |
| } |
| } |
| |
| recording.stop(); |
| List<RecordedEvent> events = Events.fromRecording(recording); |
| IOHelper.verifyEqualsInOrder(events, expectedEvents); |
| } |
| } |