1 /*

     2  * Copyright (c) 2012, 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 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 }