1 /*

     2  * Copyright (c) 2011, 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 

    25 #ifndef SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP

    26 #define SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP

    27 

    28 #include "classfile/vmSymbols.hpp"

    29 #include "memory/allocation.hpp"

    30 #include "runtime/os.hpp"

    31 #include "runtime/thread.hpp"

    32 #include "utilities/exceptions.hpp"

    33 

    34 class GenDCmdArgument : public ResourceObj {

    35 protected:

    36   GenDCmdArgument* _next;

    37   const char*      _name;

    38   const char*      _description;

    39   const char*      _type;

    40   const char*      _default_string;

    41   bool             _is_set;

    42   bool             _is_mandatory;

    43   GenDCmdArgument(const char* name, const char* description, const char* type,

    44                   const char* default_string, bool mandatory) {

    45     _name = name;

    46     _description = description;

    47     _type = type;

    48     _default_string = default_string;

    49     _is_mandatory = mandatory;

    50     _is_set = false;

    51   };

    52 public:

    53   const char* name() { return _name; }

    54   const char* description() { return _description; }

    55   const char* type() { return _type; }

    56   const char* default_string() { return _default_string; }

    57   bool is_set() { return _is_set; }

    58   void set_is_set(bool b) { _is_set = b; }

    59   bool is_mandatory() { return _is_mandatory; }

    60   bool has_value() { return _is_set || _default_string != NULL; }

    61   bool has_default() { return _default_string != NULL; }

    62   void read_value(const char* str, size_t len, TRAPS);

    63   virtual void parse_value(const char* str, size_t len, TRAPS) = 0;

    64   virtual void init_value(TRAPS) = 0;

    65   virtual void reset(TRAPS) = 0;

    66   virtual void cleanup() = 0;

    67   void set_next(GenDCmdArgument* arg) {

    68     _next = arg;

    69   }

    70   GenDCmdArgument* next() {

    71     return _next;

    72   }

    73 };

    74 

    75 template <class ArgType> class DCmdArgument: public GenDCmdArgument {

    76 private:

    77   ArgType _value;

    78 public:

    79   DCmdArgument(const char* name, const char* description, const char* type,

    80                bool mandatory) :

    81                GenDCmdArgument(name, description, type, NULL, mandatory) { }

    82   DCmdArgument(const char* name, const char* description, const char* type,

    83                bool mandatory, const char* defaultvalue) :

    84                GenDCmdArgument(name, description, type, defaultvalue, mandatory)

    85                { }

    86   ~DCmdArgument() { destroy_value(); }

    87   ArgType value() { return _value;}

    88   void set_value(ArgType v) { _value = v; }

    89   void reset(TRAPS) {

    90     destroy_value();

    91     init_value(CHECK);

    92     _is_set = false;

    93   }

    94   void cleanup() {

    95     destroy_value();

    96   }

    97   void parse_value(const char* str, size_t len, TRAPS);

    98   void init_value(TRAPS);

    99   void destroy_value();

   100 };

   101 

   102 #endif  /* SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP */