1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.jfr.api.recording.destination;
  27 
  28 import java.io.IOException;
  29 import java.nio.file.Files;
  30 import java.nio.file.Path;
  31 import java.nio.file.Paths;
  32 import java.util.List;
  33 
  34 import jdk.jfr.Recording;
  35 import jdk.jfr.consumer.RecordedEvent;
  36 import jdk.jfr.consumer.RecordingFile;
  37 import jdk.test.lib.Asserts;
  38 import jdk.test.lib.jfr.CommonHelper;
  39 import jdk.test.lib.jfr.EventNames;
  40 import jdk.test.lib.jfr.FileHelper;
  41 import jdk.test.lib.jfr.VoidFunction;
  42 
  43 /**
  44  * @test
  45  * @summary Test setDestination to read-only dir
  46  * @key jfr
  47  *
  48  * @library /lib /
  49  * @run main/othervm jdk.jfr.api.recording.destination.TestDestReadOnly
  50  */
  51 public class TestDestReadOnly {
  52 
  53     public static void main(String[] args) throws Throwable {
  54         Path readOnlyDir = FileHelper.createReadOnlyDir(Paths.get(".", "readonly"));
  55         if (!FileHelper.isReadOnlyPath(readOnlyDir)) {
  56             System.out.println("Failed to create read-only dir. Running as root?. Test ignored");
  57             return;
  58         }
  59 
  60         Path readOnlyDest = Paths.get(readOnlyDir.toString(), "readonly.jfr");
  61         Recording r = new Recording();
  62         r.enable(EventNames.OSInformation);
  63         r.setToDisk(true);
  64         verifyException(()->{r.setDestination(readOnlyDest);}, "No exception for setDestination to read-only dir");
  65 
  66         System.out.println("r.getDestination() = " + r.getDestination());
  67 
  68         // Verify that it works if we set destination to a writable dir.
  69         Path dest = Paths.get(".", "my.jfr");
  70         r.setDestination(dest);
  71         r.start();
  72         r.stop();
  73         r.close();
  74         Asserts.assertTrue(Files.exists(dest), "No recording file: " + dest);
  75         List<RecordedEvent> events = RecordingFile.readAllEvents(dest);
  76         Asserts.assertFalse(events.isEmpty(), "No event found");
  77         System.out.printf("Found event %s in %s%n", events.get(0).getEventType().getName(), dest.toString());
  78     }
  79 
  80     private static void verifyException(VoidFunction f, String msg) throws Throwable {
  81         CommonHelper.verifyException(f, msg, IOException.class);
  82     }
  83 
  84 }