1/*
2 * Copyright (c) 2015, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
24#ifndef SHARE_VM_LOGGING_LOGDIAGNOSTICCOMMAND_HPP
25#define SHARE_VM_LOGGING_LOGDIAGNOSTICCOMMAND_HPP
26
27#include "services/diagnosticCommand.hpp"
28
29// The LogDiagnosticCommand represents the 'VM.log' DCMD
30// that allows configuration of the logging at runtime.
31// It can be used to view or modify the current log configuration.
32// VM.log without additional arguments prints the usage description.
33// The 'list' argument will list all available log tags,
34// levels, decorators and currently configured log outputs.
35// Specifying 'disable' will disable logging completely.
36// The remaining arguments are used to set a log output to log everything
37// with the specified tags and levels using the given decorators.
38class LogDiagnosticCommand : public DCmdWithParser {
39 protected:
40  DCmdArgument<char *> _output;
41  DCmdArgument<char *> _output_options;
42  DCmdArgument<char *> _what;
43  DCmdArgument<char *> _decorators;
44  DCmdArgument<bool> _disable;
45  DCmdArgument<bool> _list;
46  DCmdArgument<bool> _rotate;
47
48 public:
49  LogDiagnosticCommand(outputStream* output, bool heap_allocated);
50  void execute(DCmdSource source, TRAPS);
51  static void registerCommand();
52  static int num_arguments();
53
54  static const char* name() {
55    return "VM.log";
56  }
57
58  static const char* description() {
59    return "Lists current log configuration, enables/disables/configures a log output, or rotates all logs.";
60  }
61
62  // Used by SecurityManager. This DCMD requires ManagementPermission = control.
63  static const JavaPermission permission() {
64    JavaPermission p = {"java.lang.management.ManagementPermission", "control", NULL};
65    return p;
66  }
67};
68
69#endif // SHARE_VM_LOGGING_LOGDIAGNOSTICCOMMAND_HPP
70