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
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 #include "precompiled.hpp"
  25 #include "logging/logConfiguration.hpp"
  26 #include "logging/logDiagnosticCommand.hpp"
  27 #include "memory/resourceArea.hpp"
  28 #include "runtime/mutexLocker.hpp"
  29 #include "utilities/globalDefinitions.hpp"
  30 
  31 LogDiagnosticCommand::LogDiagnosticCommand(outputStream* output, bool heap_allocated)
  32   : DCmdWithParser(output, heap_allocated),
  33     _output("output", "The name or index (#<index>) of output to configure.", "STRING", false),
  34     _output_options("output_options", "Options for the output.", "STRING", false),
  35     _what("what", "Configures what tags to log.", "STRING", false),
  36     _decorators("decorators", "Configures which decorators to use. Use 'none' or an empty value to remove all.", "STRING", false),
  37     _disable("disable", "Turns off all logging and clears the log configuration.", "BOOLEAN", false),
  38     _list("list", "Lists current log configuration.", "BOOLEAN", false),
  39     _rotate("rotate", "Rotates current log.", "BOOLEAN", false) {
  40   _dcmdparser.add_dcmd_option(&_output);
  41   _dcmdparser.add_dcmd_option(&_output_options);
  42   _dcmdparser.add_dcmd_option(&_what);
  43   _dcmdparser.add_dcmd_option(&_decorators);
  44   _dcmdparser.add_dcmd_option(&_disable);
  45   _dcmdparser.add_dcmd_option(&_list);
  46   _dcmdparser.add_dcmd_option(&_rotate);
  47 }
  48 
  49 int LogDiagnosticCommand::num_arguments() {
  50   ResourceMark rm;
  51   LogDiagnosticCommand* dcmd = new LogDiagnosticCommand(NULL, false);
  52   if (dcmd != NULL) {
  53     DCmdMark mark(dcmd);
  54     return dcmd->_dcmdparser.num_arguments();
  55   } else {
  56     return 0;
  57   }
  58 }
  59 
  60 void LogDiagnosticCommand::registerCommand() {
  61   uint32_t full_visibility = DCmd_Source_Internal | DCmd_Source_AttachAPI | DCmd_Source_MBean;
  62   DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<LogDiagnosticCommand>(full_visibility, true, false));
  63 }
  64 
  65 void LogDiagnosticCommand::execute(DCmdSource source, TRAPS) {
  66   bool any_command = false;
  67   if (_disable.has_value()) {
  68     MutexLocker ml(LogConfiguration_lock);
  69     LogConfiguration::disable_logging();
  70     any_command = true;
  71   }
  72 
  73   if (_output.has_value() || _what.has_value() || _decorators.has_value()) {
  74     MutexLocker ml(LogConfiguration_lock);
  75     if (!LogConfiguration::parse_log_arguments(_output.value(),
  76                                                _what.value(),
  77                                                _decorators.value(),
  78                                                _output_options.value(),
  79                                                output())) {
  80       return;
  81     }
  82     any_command = true;
  83   }
  84 
  85   if (_list.has_value()) {
  86     MutexLocker ml(LogConfiguration_lock);
  87     LogConfiguration::describe(output());
  88     any_command = true;
  89   }
  90 
  91   if (_rotate.has_value()) {
  92     LogConfiguration::rotate_all_logfile();
  93     any_command = true;
  94   }
  95 
  96   if (!any_command) {
  97     // If no argument was provided, print usage
  98     print_help(LogDiagnosticCommand::name());
  99   }
 100 
 101 }