libdap++ Updated for version 3.8.2
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00001 // XDRFileUnMarshaller.cc 00002 00003 // -*- mode: c++; c-basic-offset:4 -*- 00004 00005 // This file is part of libdap, A C++ implementation of the OPeNDAP Data 00006 // Access Protocol. 00007 00008 // Copyright (c) 2002,2003 OPeNDAP, Inc. 00009 // Author: Patrick West <pwest@ucar.edu> 00010 // 00011 // This library is free software; you can redistribute it and/or 00012 // modify it under the terms of the GNU Lesser General Public 00013 // License as published by the Free Software Foundation; either 00014 // version 2.1 of the License, or (at your option) any later version. 00015 // 00016 // This library is distributed in the hope that it will be useful, 00017 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00019 // Lesser General Public License for more details. 00020 // 00021 // You should have received a copy of the GNU Lesser General Public 00022 // License along with this library; if not, write to the Free Software 00023 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00024 // 00025 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112. 00026 00027 // (c) COPYRIGHT URI/MIT 1994-1999 00028 // Please read the full copyright statement in the file COPYRIGHT_URI. 00029 // 00030 // Authors: 00031 // pwest Patrick West <pwest@ucar.edu> 00032 00033 #include "XDRFileUnMarshaller.h" 00034 00035 #include "Byte.h" 00036 #include "Int16.h" 00037 #include "UInt16.h" 00038 #include "Int32.h" 00039 #include "UInt32.h" 00040 #include "Float32.h" 00041 #include "Float64.h" 00042 #include "Str.h" 00043 #include "Url.h" 00044 #include "Array.h" 00045 #include "Structure.h" 00046 #include "Sequence.h" 00047 #include "Grid.h" 00048 #if 0 00049 #include "Vector.h" 00050 #endif 00051 #include "util.h" 00052 #include "InternalErr.h" 00053 00054 namespace libdap { 00055 00056 XDRFileUnMarshaller::XDRFileUnMarshaller( FILE *out ) 00057 : _source( 0 ) 00058 { 00059 _source = new_xdrstdio( out, XDR_DECODE ) ; 00060 } 00061 00062 XDRFileUnMarshaller::XDRFileUnMarshaller() 00063 : UnMarshaller(), 00064 _source( 0 ) 00065 { 00066 throw InternalErr( __FILE__, __LINE__, "Default constructor not implemented." ) ; 00067 } 00068 00069 XDRFileUnMarshaller::XDRFileUnMarshaller( const XDRFileUnMarshaller &um ) 00070 : UnMarshaller( um ), 00071 _source( 0 ) 00072 { 00073 throw InternalErr( __FILE__, __LINE__, "Copy constructor not implemented." ) ; 00074 } 00075 00076 XDRFileUnMarshaller & 00077 XDRFileUnMarshaller::operator=( const XDRFileUnMarshaller & ) 00078 { 00079 throw InternalErr( __FILE__, __LINE__, "Copy operator not implemented." ) ; 00080 00081 return *this ; 00082 } 00083 00084 XDRFileUnMarshaller::~XDRFileUnMarshaller( ) 00085 { 00086 delete_xdrstdio( _source ) ; 00087 } 00088 00089 void 00090 XDRFileUnMarshaller::get_byte( dods_byte &val ) 00091 { 00092 if( !xdr_char( _source, (char *)&val ) ) 00093 throw Error("Network I/O Error. Could not read byte data. This may be due to a\nbug in DODS or a problem with the network connection."); 00094 } 00095 00096 void 00097 XDRFileUnMarshaller::get_int16( dods_int16 &val ) 00098 { 00099 if( !XDR_INT16( _source, &val ) ) 00100 throw Error("Network I/O Error. Could not read int 16 data. This may be due to a\nbug in libdap or a problem with the network connection."); 00101 } 00102 00103 void 00104 XDRFileUnMarshaller::get_int32( dods_int32 &val ) 00105 { 00106 if( !XDR_INT32( _source, &val ) ) 00107 throw Error("Network I/O Error. Could not read int 32 data. This may be due to a\nbug in libdap or a problem with the network connection."); 00108 } 00109 00110 void 00111 XDRFileUnMarshaller::get_float32( dods_float32 &val ) 00112 { 00113 if( !xdr_float( _source, &val ) ) 00114 throw Error("Network I/O Error. Could not read float 32 data. This may be due to a\nbug in libdap or a problem with the network connection."); 00115 } 00116 00117 void 00118 XDRFileUnMarshaller::get_float64( dods_float64 &val ) 00119 { 00120 if( !xdr_double( _source, &val ) ) 00121 throw Error("Network I/O Error. Could not read float 64 data. This may be due to a\nbug in libdap or a problem with the network connection."); 00122 } 00123 00124 void 00125 XDRFileUnMarshaller::get_uint16( dods_uint16 &val ) 00126 { 00127 if( !XDR_UINT16( _source, &val ) ) 00128 throw Error("Network I/O Error. Could not read uint 16 data. This may be due to a\nbug in libdap or a problem with the network connection."); 00129 } 00130 00131 void 00132 XDRFileUnMarshaller::get_uint32( dods_uint32 &val ) 00133 { 00134 if( !XDR_UINT32( _source, &val ) ) 00135 throw Error("Network I/O Error. Could not read uint 32 data. This may be due to a\nbug in libdap or a problem with the network connection."); 00136 } 00137 00138 void 00139 XDRFileUnMarshaller::get_str( string &val ) 00140 { 00141 char *in_tmp = NULL ; 00142 00143 if( !xdr_string( _source, &in_tmp, max_str_len ) ) 00144 throw Error("Network I/O Error. Could not read string data.\nThis may be due to a bug in libdap, on the server or a\nproblem with the network connection."); 00145 00146 val = in_tmp ; 00147 00148 free( in_tmp ) ; 00149 } 00150 00151 void 00152 XDRFileUnMarshaller::get_url( string &val ) 00153 { 00154 get_str( val ) ; 00155 } 00156 00157 void 00158 XDRFileUnMarshaller::get_opaque( char *val, unsigned int len ) 00159 { 00160 xdr_opaque( _source, val, len ) ; 00161 } 00162 00163 void 00164 XDRFileUnMarshaller::get_int( int &val ) 00165 { 00166 if( !xdr_int( _source, &val ) ) 00167 throw Error("Network I/O Error(1). This may be due to a bug in libdap or a\nproblem with the network connection."); 00168 } 00169 00170 void 00171 XDRFileUnMarshaller::get_vector( char **val, unsigned int &num, Vector & ) 00172 { 00173 if( !xdr_bytes( _source, val, &num, DODS_MAX_ARRAY) ) 00174 throw Error("Network I/O error. Could not read packed array data.\nThis may be due to a bug in libdap or a problem with\nthe network connection."); 00175 } 00176 00177 void 00178 XDRFileUnMarshaller::get_vector( char **val, unsigned int &num, int width, Vector &vec ) 00179 { 00180 BaseType *var = vec.var() ; 00181 00182 if( !xdr_array( _source, val, &num, DODS_MAX_ARRAY, width, 00183 XDRUtils::xdr_coder( var->type() ) ) ) 00184 { 00185 throw Error("Network I/O error. Could not read packed array data.\nThis may be due to a bug in libdap or a problem with\nthe network connection."); 00186 } 00187 } 00188 00189 void 00190 XDRFileUnMarshaller::dump(ostream &strm) const 00191 { 00192 strm << DapIndent::LMarg << "XDRFileUnMarshaller::dump - (" 00193 << (void *)this << ")" << endl ; 00194 } 00195 00196 } // namespace libdap 00197