BESXMLGetDataDDXCommand.cc

// BESXMLGetDataDDXCommand.cc
 
// This file is part of bes, A C++ back-end server implementation framework
// for the OPeNDAP Data Access Protocol.
 
// Copyright (c) 2004,2005 University Corporation for Atmospheric Research
// Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library 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
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact University Corporation for Atmospheric Research at
// 3080 Center Green Drive, Boulder, CO 80301
 
// (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
// Please read the full copyright statement in the file COPYRIGHT_UCAR.
//
// Authors:
//      pwest       Patrick West <pwest@ucar.edu>
//      jgarcia     Jose Garcia <jgarcia@ucar.edu>
 
#include "BESXMLGetDataDDXCommand.h"
#include "BESDefinitionStorageList.h"
#include "BESDefinitionStorage.h"
#include "BESDefine.h"
#include "BESDapNames.h"
#include "BESResponseNames.h"
#include "BESXMLUtils.h"
#include "BESUtil.h"
#include "BESSyntaxUserError.h"
#include "BESDebug.h"
 
BESXMLGetDataDDXCommand::BESXMLGetDataDDXCommand(const BESDataHandlerInterface &base_dhi) :
    BESXMLGetCommand(base_dhi)
{
}

void BESXMLGetDataDDXCommand::parse_request(xmlNode *node)
{
    string name;                // element name
    string value;               // node context
    map<string, string> props;  // attributes
    BESXMLUtils::GetNodeInfo(node, name, value, props);
 
    if (name != GET_RESPONSE) {
        string err = "The specified command " + name + " is not a get command";
        throw BESSyntaxUserError(err, __FILE__, __LINE__);
    }
 
    string type = props["type"];
    if (type.empty() || type != DATADDX_SERVICE) {
        string err = name + " command: data product must be " + DATADDX_SERVICE;
        throw BESSyntaxUserError(err, __FILE__, __LINE__);
    }
 
    parse_basic_get(type, props);
 
    // Get the elements for contentStartId and mimeBoundary
    map<string, string> cprops;
    string cname;
    string cval;
    int elems = 0;
    xmlNode *cnode = BESXMLUtils::GetFirstChild(node, cname, cval, cprops);
    while (cnode && (elems < 2)) {
        if (cname == "contentStartId") {
            if (!_contentStartId.empty()) {
                string err = name + " command: contentStartId has multiple values";
                throw BESSyntaxUserError(err, __FILE__, __LINE__);
            }
            _contentStartId = cval;
            d_cmd_log_info += " contentStartId " + _contentStartId;
            elems++;
        }
        if (cname == "mimeBoundary") {
            if (!_mimeBoundary.empty()) {
                string err = name + " command: mimeBoundary has multiple values";
                throw BESSyntaxUserError(err, __FILE__, __LINE__);
            }
            _mimeBoundary = cval;
            d_cmd_log_info += " mimeBoundary " + _mimeBoundary;
            elems++;
        }
        cprops.clear();
        cnode = BESXMLUtils::GetNextChild(cnode, cname, cval, cprops);
    }
    if (_contentStartId.empty()) {
        string err = name + " command: contentStartId not specified";
        throw BESSyntaxUserError(err, __FILE__, __LINE__);
    }
    if (_mimeBoundary.empty()) {
        string err = name + " command: mimeBoundary not specified";
        throw BESSyntaxUserError(err, __FILE__, __LINE__);
    }
    d_cmd_log_info += ";";
 
    // now that we've set the action, go get the response handler for the
    // action
    BESXMLCommand::set_response();
}

void BESXMLGetDataDDXCommand::prep_request()
{
    BESXMLGetCommand::prep_request();
    d_xmlcmd_dhi.data[DATADDX_STARTID] = _contentStartId;
    d_xmlcmd_dhi.data[DATADDX_BOUNDARY] = _mimeBoundary;
}

void BESXMLGetDataDDXCommand::dump(ostream &strm) const
{
    strm << BESIndent::LMarg << "BESXMLGetDataDDXCommand::dump - (" << (void *) this << ")" << endl;
    BESIndent::Indent();
    BESXMLCommand::dump(strm);
    BESIndent::UnIndent();
}
 
BESXMLCommand *
BESXMLGetDataDDXCommand::CommandBuilder(const BESDataHandlerInterface &base_dhi)
{
    return new BESXMLGetDataDDXCommand(base_dhi);
}