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// Logging_Strategy.cpp
// $Id$
#define ACE_BUILD_SVC_DLL
#include "iostream.h"
#include "fstream.h"
#include "ace/Get_Opt.h"
#include "ace/Log_Msg.h"
#include "ace/Service_Object.h"
#include "Logging_Strategy.h"
class ACE_Logging_Strategy : public ACE_Service_Object
// = TITLE
// This class provides the hooks to control the output produced
// by any of the network services.
//
// = DESCRIPTION
// Depending upon when this service is invoked and with what
// flags, the output of other network services can be
// controlled. The output can be streamed to stderr, to a file,
// to a logging daemon, or it can be set to be "silent".
{
public:
virtual int init (int argc, char *argv[]);
// Dynamic linking hook.
int parse_args (int argc, char *argv[]);
// Parse svc.conf arguments.
private:
void tokenize (char *flag_string);
// Tokenize to set all the flags
u_long flags_;
char *filename_;
};
// Parse the string containing all the flags and set the flags accordingly
void
ACE_Logging_Strategy::tokenize (char *flag_string)
{
char *flag;
if ((flag = ACE_OS::strtok (flag_string, "|")) != NULL)
{
while (flag)
{
if (ACE_OS::strcmp (flag, "STDERR") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::STDERR);
else if (ACE_OS::strcmp (flag, "LOGGER") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::LOGGER);
else if (ACE_OS::strcmp (flag, "OSTREAM") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::OSTREAM);
else if (ACE_OS::strcmp (flag, "VERBOSE") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::VERBOSE);
else if (ACE_OS::strcmp (flag, "SILENT") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::SILENT);
// Get the next flag
flag = ACE_OS::strtok(0, "|");
}
}
}
int
ACE_Logging_Strategy::parse_args (int argc, char *argv[])
{
ACE_TRACE ("ACE_Logging_Strategy::parse_args");
char *temp;
this->flags_ = 0;
this->filename_ = ACE_DEFAULT_LOGFILE;
ACE_LOG_MSG->open ("Logging_Strategy");
ACE_Get_Opt get_opt (argc, argv, "f:s:", 0);
for (int c; (c = get_opt ()) != -1; )
{
switch (c)
{
case 'f':
temp = get_opt.optarg;
// Now tokenize the string to get all the flags
this->tokenize (temp);
break;
case 's':
// Ensure that the OSTREAM flag is set
ACE_SET_BITS (this->flags_, ACE_Log_Msg::OSTREAM);
this->filename_ = get_opt.optarg;
break;
default:
break;
}
}
return 0;
}
int
ACE_Logging_Strategy::init (int argc, char *argv[])
{
ACE_TRACE ("ACE_Logging_Strategy::init");
// Use the options hook to parse the command line arguments.
this->parse_args (argc, argv);
// Check if any flags were specified. If none were specified, let
// the default behavior take effect.
if (this->flags_ != 0)
{
// Clear all flags
ACE_Log_Msg::instance()->clr_flags (ACE_Log_Msg::STDERR |
ACE_Log_Msg::LOGGER |
ACE_Log_Msg::OSTREAM |
ACE_Log_Msg::VERBOSE |
ACE_Log_Msg::SILENT);
// Check if OSTREAM bit is set
if (ACE_BIT_ENABLED (this->flags_, ACE_Log_Msg::OSTREAM))
{
// Create a new ofstream to direct output to the file
ofstream *output_file = new ofstream (this->filename_);
ACE_Log_Msg::instance()->msg_ostream (output_file);
}
// Now set the flags for Log_Msg
ACE_Log_Msg::instance()->set_flags (this->flags_);
}
return 0;
}
// The following is a "Factory" used by the ACE_Service_Config and
// svc.conf file to dynamically initialize the state of the Logging_Strategy.
ACE_SVC_FACTORY_DEFINE (ACE_Logging_Strategy)
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