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.VoidFunction;
  41 
  42 /**
  43  * @test
  44  * @summary Test setDestination to invalid paths
  45  * @key jfr
  46  *
  47  * @library /lib /
  48  * @run main/othervm jdk.jfr.api.recording.destination.TestDestInvalid
  49  */
  50 public class TestDestInvalid {
  51 
  52     public static void main(String[] args) throws Throwable {
  53         Recording r = new Recording();
  54         r.enable(EventNames.OSInformation);
  55         r.setToDisk(true);
  56 
  57         Asserts.assertNull(r.getDestination(), "dest not null by default");
  58 
  59         // Set destination to empty path (same as curr dir, not a file)
  60         verifyException(()->{r.setDestination(Paths.get(""));}, "No exception for setDestination(\"\")", IOException.class);
  61         System.out.println("1 destination: " + r.getDestination());
  62         Asserts.assertNull(r.getDestination(), "default dest not null after failed setDest");
  63 
  64         // Set dest to a valid path. This should be kept when a new setDest fails.
  65         Path dest = Paths.get(".", "my.jfr");
  66         r.setDestination(dest);
  67         System.out.println("2 destination: " + r.getDestination());
  68         Asserts.assertEquals(dest, r.getDestination(), "Wrong get/set dest");
  69 
  70         // Null is allowed for setDestination()
  71         r.setDestination(null);
  72         System.out.println("3 destination: " + r.getDestination());
  73         Asserts.assertNull(r.getDestination(), "dest not null after setDest(null)");
  74 
  75         // Reset dest to correct value and make ssure it is not overwritten
  76         r.setDestination(dest);
  77         System.out.println("4 destination: " + r.getDestination());
  78         Asserts.assertEquals(dest, r.getDestination(), "Wrong get/set dest");
  79 
  80         // Set destination to an existing dir. Old dest is saved.
  81         verifyException(()->{r.setDestination(Paths.get("."));}, "No exception for setDestination(.)", IOException.class);
  82         System.out.println("5 destination: " + r.getDestination());
  83         Asserts.assertEquals(dest, r.getDestination(), "Wrong get/set dest");
  84 
  85         // Set destination to a non-existing dir. Old dest is saved.
  86         verifyException(()->{r.setDestination(Paths.get(".", "missingdir", "my.jfr"));}, "No exception for setDestination(dirNotExists)", IOException.class);
  87         System.out.println("6 destination: " + r.getDestination());
  88         Asserts.assertEquals(dest, r.getDestination(), "Wrong get/set dest");
  89 
  90         // Verify that it works with the old setDest value.
  91         r.start();
  92         r.stop();
  93         r.close();
  94         Asserts.assertTrue(Files.exists(dest), "No recording file: " + dest);
  95         List<RecordedEvent> events = RecordingFile.readAllEvents(dest);
  96         Asserts.assertFalse(events.isEmpty(), "No event found");
  97         System.out.printf("Found event %s in %s%n", events.get(0).getEventType().getName(), dest.toString());
  98     }
  99 
 100     private static void verifyException(VoidFunction f, String msg, Class<?> exceptionClass) throws Throwable {
 101         CommonHelper.verifyException(f, msg, IOException.class);
 102     }
 103 
 104 }