OPeNDAP Hyrax Back End Server (BES)  Updated for version 3.8.3
BESDDSResponseHandler.cc
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1 // BESDDSResponseHandler.cc
2 
3 // This file is part of bes, A C++ back-end server implementation framework
4 // for the OPeNDAP Data Access Protocol.
5 
6 // Copyright (c) 2004-2009 University Corporation for Atmospheric Research
7 // Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
8 //
9 // This library is free software; you can redistribute it and/or
10 // modify it under the terms of the GNU Lesser General Public
11 // License as published by the Free Software Foundation; either
12 // version 2.1 of the License, or (at your option) any later version.
13 //
14 // This library is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 // Lesser General Public License for more details.
18 //
19 // You should have received a copy of the GNU Lesser General Public
20 // License along with this library; if not, write to the Free Software
21 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 //
23 // You can contact University Corporation for Atmospheric Research at
24 // 3080 Center Green Drive, Boulder, CO 80301
25 
26 // (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
27 // Please read the full copyright statement in the file COPYRIGHT_UCAR.
28 //
29 // Authors:
30 // pwest Patrick West <pwest@ucar.edu>
31 // jgarcia Jose Garcia <jgarcia@ucar.edu>
32 
33 #include "BESDDSResponseHandler.h"
34 #include "BESDDSResponse.h"
35 #include "BESRequestHandlerList.h"
36 #include "BESDapNames.h"
37 #include "BESDataNames.h"
38 //#include "BESDapTransmit.h"
39 
40 #include "BESDebug.h"
41 
43  : BESResponseHandler( name )
44 {
45 }
46 
48 {
49 }
50 
64 void
66 {
67  // NOTE: It is the responsibility of the specific request handler to set
68  // the BaseTypeFactory. It is set to NULL here
70  DDS *dds = new DDS( NULL, "virtual" ) ;
71  BESDDSResponse *bdds = new BESDDSResponse( dds ) ;
72 
73  // Set the DAP protocol version requested by the client
74 
75  dhi.first_container();
76  BESDEBUG("version", "Initial CE: " << dhi.container->get_constraint() << endl);
77  dhi.container->set_constraint(dds->get_keywords().parse_keywords(dhi.container->get_constraint()));
78  BESDEBUG("version", "CE after keyword processing: " << dhi.container->get_constraint() << endl);
79 
80  if (dds->get_keywords().has_keyword("dap")) {
81  dds->set_dap_version(dds->get_keywords().get_keyword_value("dap"));
82  }
83  else if (!bdds->get_dap_client_protocol().empty()) {
84  dds->set_dap_version( bdds->get_dap_client_protocol() ) ;
85  }
86 
87  _response = bdds ;
89 }
90 
103 void
106 {
107  if( _response )
108  {
109  transmitter->send_response( DDS_SERVICE, _response, dhi ) ;
110  }
111 }
112 
119 void
120 BESDDSResponseHandler::dump( ostream &strm ) const
121 {
122  strm << BESIndent::LMarg << "BESDDSResponseHandler::dump - ("
123  << (void *)this << ")" << endl ;
125  BESResponseHandler::dump( strm ) ;
127 }
128 
131 {
132  return new BESDDSResponseHandler( name ) ;
133 }
134 
virtual ~BESDDSResponseHandler(void)
string get_dap_client_protocol() const
Return the dap version string sent by the client (e.g., the OLFS)
string get_constraint() const
retrieve the constraint expression for this container
Definition: BESContainer.h:150
Represents an OPeNDAP DDS DAP2 data object within the BES.
#define DDS_RESPONSE_STR
Definition: BESDapNames.h:62
virtual void dump(ostream &strm) const
dumps information about this object
static void Indent()
Definition: BESIndent.cc:38
BESResponseObject * _response
handler object that knows how to create a specific response object
virtual void send_response(const string &method, BESResponseObject *obj, BESDataHandlerInterface &dhi)
BESDDSResponseHandler(const string &name)
static ostream & LMarg(ostream &strm)
Definition: BESIndent.cc:73
virtual void execute_each(BESDataHandlerInterface &dhi)
for each container in the given data handler interface, execute the given request ...
void set_constraint(const string &s)
set the constraint for this container
Definition: BESContainer.h:102
virtual void dump(ostream &strm) const
dumps information about this object
static BESRequestHandlerList * TheList()
Structure storing information used by the BES to handle the request.
void first_container()
set the container pointer to the first container in the containers list
#define BESDEBUG(x, y)
macro used to send debug information to the debug stream
Definition: BESDebug.h:64
static void UnIndent()
Definition: BESIndent.cc:44
static BESResponseHandler * DDSResponseBuilder(const string &name)
#define DDS_SERVICE
Definition: BESDapNames.h:60
BESContainer * container
pointer to current container in this interface
virtual void execute(BESDataHandlerInterface &dhi)
executes the command 'get dds for ;' by executing the request for each container in the spe...
virtual void transmit(BESTransmitter *transmitter, BESDataHandlerInterface &dhi)
transmit the response object built by the execute command using the specified transmitter object ...