BESProcIdResponseHandler.cc

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00001 // BESProcIdResponseHandler.cc
00002 
00003 // This file is part of bes, A C++ back-end server implementation framework
00004 // for the OPeNDAP Data Access Protocol.
00005 
00006 // Copyright (c) 2004,2005 University Corporation for Atmospheric Research
00007 // Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
00008 //
00009 // This library is free software; you can redistribute it and/or
00010 // modify it under the terms of the GNU Lesser General Public
00011 // License as published by the Free Software Foundation; either
00012 // version 2.1 of the License, or (at your option) any later version.
00013 // 
00014 // This library is distributed in the hope that it will be useful,
00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017 // Lesser General Public License for more details.
00018 // 
00019 // You should have received a copy of the GNU Lesser General Public
00020 // License along with this library; if not, write to the Free Software
00021 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022 //
00023 // You can contact University Corporation for Atmospheric Research at
00024 // 3080 Center Green Drive, Boulder, CO 80301
00025  
00026 // (c) COPYRIGHT University Corporation for Atmostpheric Research 2004-2005
00027 // Please read the full copyright statement in the file COPYRIGHT_UCAR.
00028 //
00029 // Authors:
00030 //      pwest       Patrick West <pwest@ucar.edu>
00031 //      jgarcia     Jose Garcia <jgarcia@ucar.edu>
00032 
00033 #include <unistd.h>
00034 
00035 #include "BESProcIdResponseHandler.h"
00036 #include "BESInfoList.h"
00037 #include "BESInfo.h"
00038 #include "BESResponseNames.h"
00039 
00040 BESProcIdResponseHandler::BESProcIdResponseHandler( string name )
00041     : BESResponseHandler( name )
00042 {
00043 }
00044 
00045 BESProcIdResponseHandler::~BESProcIdResponseHandler( )
00046 {
00047 }
00048 
00049 char *
00050 BESProcIdResponseHandler::fastpidconverter(
00051       long val,                                 /* value to be converted */
00052       char *buf,                                /* output string         */
00053       int base)                                 /* conversion base       */
00054 {
00055       ldiv_t r;                                 /* result of val / base  */
00056 
00057       if (base > 36 || base < 2)          /* no conversion if wrong base */
00058       {
00059             *buf = '\0';
00060             return buf;
00061       }
00062       if (val < 0)
00063             *buf++ = '-';
00064       r = ldiv (labs(val), base);
00065 
00066       /* output digits of val/base first */
00067 
00068       if (r.quot > 0)
00069             buf = fastpidconverter ( r.quot, buf, base);
00070       /* output last digit */
00071 
00072       *buf++ = "0123456789abcdefghijklmnopqrstuvwxyz"[(int)r.rem];
00073       *buf   = '\0';
00074       return buf;
00075 }
00076 
00092 void
00093 BESProcIdResponseHandler::execute( BESDataHandlerInterface &dhi )
00094 {
00095     BESInfo *info = BESInfoList::TheList()->build_info() ;
00096     _response = info ;
00097     dhi.action_name = PROCESS_RESPONSE_STR ;
00098     info->begin_response( PROCESS_RESPONSE_STR ) ;
00099     char mypid[12] ;
00100     fastpidconverter( getpid(), mypid, 10 ) ;
00101     info->add_tag( "pid", mypid ) ;
00102     info->end_response() ;
00103 }
00104 
00117 void
00118 BESProcIdResponseHandler::transmit( BESTransmitter *transmitter,
00119                                   BESDataHandlerInterface &dhi )
00120 {
00121     if( _response )
00122     {
00123         BESInfo *info = dynamic_cast<BESInfo *>(_response) ;
00124         info->transmit( transmitter, dhi ) ;
00125     }
00126 }
00127 
00134 void
00135 BESProcIdResponseHandler::dump( ostream &strm ) const
00136 {
00137     strm << BESIndent::LMarg << "BESProcIdResponseHandler::dump - ("
00138                              << (void *)this << ")" << endl ;
00139     BESIndent::Indent() ;
00140     BESResponseHandler::dump( strm ) ;
00141     BESIndent::UnIndent() ;
00142 }
00143 
00144 BESResponseHandler *
00145 BESProcIdResponseHandler::ProcIdResponseBuilder( string handler_name )
00146 {
00147     return new BESProcIdResponseHandler( handler_name ) ;
00148 }
00149 

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