/*

 * Copyright (c) 2011, 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.

 *

 */

#include "precompiled.hpp"

#include "services/diagnosticArgument.hpp"

#include "services/diagnosticCommand.hpp"

#include "services/diagnosticFramework.hpp"

HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmd(output, heap),

  _all("-all", "Show help for all commands", "BOOLEAN", false, "false"),

  _cmd("command name", "The name of the command for which we want help",

        "STRING", false) {

  _dcmdparser.add_dcmd_option(&_all);

  _dcmdparser.add_dcmd_argument(&_cmd);

};

void HelpDCmd::parse(CmdLine* line, char delim, TRAPS) {

  _dcmdparser.parse(line, delim, CHECK);

}

void HelpDCmd::print_help(outputStream* out) {

  _dcmdparser.print_help(out, name());

}

void HelpDCmd::execute(TRAPS) {

  if (_all.value()) {

    GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list();

    for (int i = 0; i < cmd_list->length(); i++) {

      DCmdFactory* factory = DCmdFactory::factory(cmd_list->at(i),

                                                  strlen(cmd_list->at(i)));

      if (!factory->is_hidden()) {

        output()->print_cr("%s%s", factory->name(),

                           factory->is_enabled() ? "" : " [disabled]");

        output()->print_cr("\t%s", factory->description());

        output()->cr();

      }

      factory = factory->next();

    }

  } else if (_cmd.has_value()) {

    DCmd* cmd = NULL;

    DCmdFactory* factory = DCmdFactory::factory(_cmd.value(),

                                                strlen(_cmd.value()));

    if (factory != NULL) {

      output()->print_cr("%s%s", factory->name(),

                         factory->is_enabled() ? "" : " [disabled]");

      output()->print_cr(factory->description());

      output()->print_cr("\nImpact: %s", factory->impact());

      cmd = factory->create_resource_instance(output());

      if (cmd != NULL) {

        DCmdMark mark(cmd);

        cmd->print_help(output());

      }

    } else {

      output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value());

    }

  } else {

    output()->print_cr("The following commands are available:");

    GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list();

    for (int i = 0; i < cmd_list->length(); i++) {

      DCmdFactory* factory = DCmdFactory::factory(cmd_list->at(i),

                                                  strlen(cmd_list->at(i)));

      if (!factory->is_hidden()) {

        output()->print_cr("%s%s", factory->name(),

                           factory->is_enabled() ? "" : " [disabled]");

      }

      factory = factory->_next;

    }

    output()->print_cr("\nFor more information about a specific command use 'help <command>'.");

  }

}

void HelpDCmd::reset(TRAPS) {

  _dcmdparser.reset(CHECK);

}

void HelpDCmd::cleanup() {

  _dcmdparser.cleanup();

}

int HelpDCmd::num_arguments() {

  ResourceMark rm;

  HelpDCmd* dcmd = new HelpDCmd(NULL, false);

  if (dcmd != NULL) {

    DCmdMark mark(dcmd);

    return dcmd->_dcmdparser.num_arguments();

  } else {

    return 0;

  }

}

GrowableArray<const char*>* HelpDCmd::argument_name_array() {

  return _dcmdparser.argument_name_array();

}

GrowableArray<DCmdArgumentInfo*>* HelpDCmd::argument_info_array() {

  return _dcmdparser.argument_info_array();

}

void VersionDCmd::execute(TRAPS) {

  output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(),

          Abstract_VM_Version::vm_release());

  JDK_Version jdk_version = JDK_Version::current();

  if (jdk_version.update_version() > 0) {

    output()->print_cr("JDK %d.%d_%02d", jdk_version.major_version(),

            jdk_version.minor_version(), jdk_version.update_version());

  } else {

    output()->print_cr("JDK %d.%d", jdk_version.major_version(),

            jdk_version.minor_version());

  }

}