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/*
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* Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.internal.dcmd;
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import java.io.IOException;
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import java.nio.file.InvalidPathException;
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import java.nio.file.Paths;
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import jdk.jfr.Recording;
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import jdk.jfr.internal.LogLevel;
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import jdk.jfr.internal.LogTag;
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import jdk.jfr.internal.Logger;
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import jdk.jfr.internal.SecuritySupport.SafePath;
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/**
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* JFR.stop
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*
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*/
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// Instantiated by native
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final class DCmdStop extends AbstractDCmd {
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/**
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* Execute JFR.stop
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*
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* Requires that either <code>name or <code>id</code> is set.
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*
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* @param name name or id of the recording to stop.
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*
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* @param filename file path where data should be written after recording has
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* been stopped, or <code>null</code> if recording shouldn't be written
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* to disk.
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* @return result text
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*
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* @throws DCmdException if recording could not be stopped
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*/
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public String execute(String name, String filename) throws DCmdException {
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if (Logger.shouldLog(LogTag.JFR_DCMD, LogLevel.DEBUG)) {
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Logger.log(LogTag.JFR_DCMD, LogLevel.DEBUG, "Executing DCmdStart: name=" + name + ", filename=" + filename);
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}
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try {
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SafePath safePath = null;
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Recording recording = findRecording(name);
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if (filename != null) {
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try {
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// Ensure path is valid. Don't generate safePath if filename == null, as a user may
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// want to stop recording without a dump
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safePath = resolvePath(null, filename);
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recording.setDestination(Paths.get(filename));
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} catch (IOException | InvalidPathException e) {
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throw new DCmdException("Failed to stop %s. Could not set destination for \"%s\" to file %s", recording.getName(), filename, e.getMessage());
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}
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}
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recording.stop();
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reportOperationComplete("Stopped", recording.getName(), safePath);
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recording.close();
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return getResult();
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} catch (InvalidPathException | DCmdException e) {
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if (filename != null) {
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throw new DCmdException("Could not write recording \"%s\" to file. %s", name, e.getMessage());
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}
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throw new DCmdException(e, "Could not stop recording \"%s\".", name, e.getMessage());
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}
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}
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}
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