1 /*
   2  * Copyright (c) 2012, 2019, 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 package jdk.jfr.internal.dcmd;
  26 
  27 import java.io.IOException;
  28 import java.nio.file.InvalidPathException;
  29 import java.nio.file.Paths;
  30 
  31 import jdk.jfr.Recording;
  32 import jdk.jfr.internal.SecuritySupport.SafePath;
  33 
  34 /**
  35  * JFR.stop
  36  *
  37  */
  38 //Instantiated by native
  39 final class DCmdStop extends AbstractDCmd {
  40 
  41     /**
  42      * Execute JFR.stop
  43      *
  44      * Requires that either <code>name or <code>id</code> is set.
  45      *
  46      * @param recordingText name or id of the recording to stop.
  47      *
  48      * @param textPath file path where data should be written after recording
  49      *        has been stopped, or <code>null</code> if recording shouldn't be
  50      *        written to disk.
  51      * @return result text
  52      *
  53      * @throws DCmdException if recording could not be stopped
  54      */
  55     public String execute(String recordingText, String textPath) throws DCmdException {
  56         try {
  57             SafePath path = resolvePath(textPath, "Failed to stop %s");
  58             Recording recording = findRecording(recordingText);
  59             if (textPath != null) {
  60                 try {
  61                     recording.setDestination(Paths.get(textPath));
  62                 } catch (IOException e) {
  63                     throw new DCmdException("Failed to stop %s. Could not set destination for \"%s\" to file %s", recording.getName(), textPath, e.getMessage());
  64                 }
  65             }
  66             recording.stop();
  67             reportOperationComplete("Stopped", recording, path);
  68             recording.close();
  69             return getResult();
  70         } catch (InvalidPathException | DCmdException e) {
  71             if (textPath != null) {
  72                 throw new DCmdException("Could not write recording \"%s\" to file. %s", recordingText, e.getMessage());
  73             }
  74             throw new DCmdException(e, "Could not stop recording \"%s\".", recordingText, e.getMessage());
  75         }
  76     }
  77 }