/*

 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#ifndef SHARE_VM_LOGGING_LOGDIAGNOSTICCOMMAND_HPP

#define SHARE_VM_LOGGING_LOGDIAGNOSTICCOMMAND_HPP

#include "services/diagnosticCommand.hpp"

// The LogDiagnosticCommand represents the 'VM.log' DCMD

// that allows configuration of the logging at runtime.

// It can be used to view or modify the current log configuration.

// VM.log without additional arguments prints the usage description.

// The 'list' argument will list all available log tags,

// levels, decorators and currently configured log outputs.

// Specifying 'disable' will disable logging completely.

// The remaining arguments are used to set a log output to log everything

// with the specified tags and levels using the given decorators.

class LogDiagnosticCommand : public DCmdWithParser {

 protected:

  DCmdArgument<char *> _output;

  DCmdArgument<char *> _output_options;

  DCmdArgument<char *> _what;

  DCmdArgument<char *> _decorators;

  DCmdArgument<bool> _disable;

  DCmdArgument<bool> _list;

 public:

  LogDiagnosticCommand(outputStream* output, bool heap_allocated);

  void execute(DCmdSource source, TRAPS);

  static void registerCommand();

  static int num_arguments();

  static const char* name() {

    return "VM.log";

  }

  static const char* description() {

    return "Lists, enables, disables or changes a log output configuration.";

  }

  // Used by SecurityManager. This DCMD requires ManagementPermission = control.

  static const JavaPermission permission() {

    JavaPermission p = {"java.lang.management.ManagementPermission", "control", NULL};

    return p;

  }

};

#endif // SHARE_VM_LOGGING_LOGDIAGNOSTICCOMMAND_HPP