Int16.cc

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00001 
00002 // -*- mode: c++; c-basic-offset:4 -*-
00003 
00004 // This file is part of libdap, A C++ implementation of the OPeNDAP Data
00005 // Access Protocol.
00006 
00007 // Copyright (c) 2002,2003 OPeNDAP, Inc.
00008 // Author: James Gallagher <jgallagher@opendap.org>
00009 //
00010 // This library is free software; you can redistribute it and/or
00011 // modify it under the terms of the GNU Lesser General Public
00012 // License as published by the Free Software Foundation; either
00013 // version 2.1 of the License, or (at your option) any later version.
00014 //
00015 // This library is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00023 //
00024 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
00025 
00026 // (c) COPYRIGHT URI/MIT 1996-1999
00027 // Please read the full copyright statement in the file COPYRIGHT_URI.
00028 //
00029 // Authors:
00030 //      jhrg,jimg       James Gallagher <jgallagher@gso.uri.edu>
00031 
00032 // Implementation for Int32.
00033 //
00034 // jhrg 9/7/94
00035 
00036 
00037 #include "config.h"
00038 
00039 static char rcsid[] not_used =
00040     {"$Id: Int16.cc 20518 2009-03-05 23:39:46Z jimg $"
00041     };
00042 
00043 #include "Int16.h"
00044 #include "DDS.h"
00045 #include "util.h"
00046 #include "parser.h"
00047 #include "Operators.h"
00048 #include "dods-limits.h"
00049 #include "debug.h"
00050 #include "InternalErr.h"
00051 
00052 using std::cerr;
00053 using std::endl;
00054 
00055 namespace libdap {
00056 
00061 Int16::Int16(const string &n) : BaseType(n, dods_int16_c)
00062 {}
00063 
00071 Int16::Int16(const string &n, const string &d) : BaseType(n, d, dods_int16_c)
00072 {}
00073 
00074 Int16::Int16(const Int16 &copy_from) : BaseType(copy_from)
00075 {
00076     _buf = copy_from._buf;
00077 }
00078 
00079 BaseType *
00080 Int16::ptr_duplicate()
00081 {
00082     return new Int16(*this);
00083 }
00084 
00085 Int16 &
00086 Int16::operator=(const Int16 &rhs)
00087 {
00088     if (this == &rhs)
00089         return *this;
00090 
00091     dynamic_cast<BaseType &>(*this) = rhs;
00092 
00093     _buf = rhs._buf;
00094 
00095     return *this;
00096 }
00097 
00098 unsigned int
00099 Int16::width()
00100 {
00101     return sizeof(dods_int16);
00102 }
00103 
00104 bool
00105 Int16::serialize(ConstraintEvaluator &eval, DDS &dds,
00106                  Marshaller &m, bool ce_eval)
00107 {
00108     dds.timeout_on();
00109 
00110     if (!read_p())
00111         read();  // read() throws Error and InternalErr
00112 
00113 #if EVAL
00114     if (ce_eval && !eval.eval_selection(dds, dataset()))
00115         return true;
00116 #endif
00117 
00118     dds.timeout_off();
00119 
00120     m.put_int16( _buf ) ;
00121 
00122     return true;
00123 }
00124 
00125 bool
00126 Int16::deserialize(UnMarshaller &um, DDS *, bool)
00127 {
00128     um.get_int16( _buf ) ;
00129 
00130     return false;
00131 }
00132 
00133 unsigned int
00134 Int16::val2buf(void *val, bool)
00135 {
00136     // Jose Garcia
00137     // This method is public therefore and I believe it has being designed
00138     // to be use by read which must be implemented on the surrogated library,
00139     // thus if the pointer val is NULL, is  an Internal Error.
00140     if (!val)
00141         throw InternalErr(__FILE__, __LINE__,
00142                           "The incoming pointer does not contain any data.");
00143 
00144     _buf = *(dods_int16 *)val;
00145 
00146     return width();
00147 }
00148 
00149 unsigned int
00150 Int16::buf2val(void **val)
00151 {
00152     // Jose Garcia
00153     // The same comment justifying throwing an Error in val2buf applies here.
00154     if (!val)
00155         throw InternalErr(__FILE__, __LINE__, "NULL pointer.");
00156 
00157     if (!*val)
00158         *val = new dods_int16;
00159 
00160     *(dods_int16 *)*val = _buf;
00161 
00162     return width();
00163 }
00164 
00165 dods_int16
00166 Int16::value() const
00167 {
00168     return _buf;
00169 }
00170 
00171 bool
00172 Int16::set_value(dods_int16 i)
00173 {
00174     _buf = i;
00175     set_read_p(true);
00176 
00177     return true;
00178 }
00179 //#if FILE_METHODS
00180 void
00181 Int16::print_val(FILE *out, string space, bool print_decl_p)
00182 {
00183     if (print_decl_p) {
00184         print_decl(out, space, false);
00185         fprintf(out, " = %d;\n", _buf) ;
00186     }
00187     else
00188         fprintf(out, "%d", _buf) ;
00189 }
00190 //#endif
00191 void
00192 Int16::print_val(ostream &out, string space, bool print_decl_p)
00193 {
00194     if (print_decl_p) {
00195         print_decl(out, space, false);
00196         out << " = " << _buf << ";\n" ;
00197     }
00198     else
00199         out << _buf ;
00200 }
00201 
00202 bool
00203 Int16::ops(BaseType *b, int op)
00204 {
00205 
00206     // Extract the Byte arg's value.
00207     if (!read_p() && !read()) {
00208         // Jose Garcia
00209         // Since the read method is virtual and implemented outside
00210         // libdap++ if we cannot read the data that is the problem
00211         // of the user or of whoever wrote the surrogate library
00212         // implemeting read therefore it is an internal error.
00213         throw InternalErr(__FILE__, __LINE__, "This value not read!");
00214     }
00215 
00216     // Extract the second arg's value.
00217     if (!b || !b->read_p() && !b->read()) {
00218         // Jose Garcia
00219         // Since the read method is virtual and implemented outside
00220         // libdap++ if we cannot read the data that is the problem
00221         // of the user or of whoever wrote the surrogate library
00222         // implemeting read therefore it is an internal error.
00223         throw InternalErr(__FILE__, __LINE__, "This value not read!");
00224     }
00225 
00226     switch (b->type()) {
00227     case dods_byte_c:
00228         return rops<dods_int16, dods_byte, SUCmp<dods_int16, dods_byte> >
00229                (_buf, dynamic_cast<Byte *>(b)->_buf, op);
00230     case dods_int16_c:
00231         return rops<dods_int16, dods_int16, Cmp<dods_int16, dods_int16> >
00232                (_buf, dynamic_cast<Int16 *>(b)->_buf, op);
00233     case dods_uint16_c:
00234         return rops<dods_int16, dods_uint16, SUCmp<dods_int16, dods_uint16> >
00235                (_buf, dynamic_cast<UInt16 *>(b)->_buf, op);
00236     case dods_int32_c:
00237         return rops<dods_int16, dods_int32, Cmp<dods_int16, dods_int32> >
00238                (_buf, dynamic_cast<Int32 *>(b)->_buf, op);
00239     case dods_uint32_c:
00240         return rops<dods_int16, dods_uint32, SUCmp<dods_int16, dods_uint32> >
00241                (_buf, dynamic_cast<UInt32 *>(b)->_buf, op);
00242     case dods_float32_c:
00243         return rops<dods_int16, dods_float32, Cmp<dods_int16, dods_float32> >
00244                (_buf, dynamic_cast<Float32 *>(b)->_buf, op);
00245     case dods_float64_c:
00246         return rops<dods_int16, dods_float64, Cmp<dods_int16, dods_float64> >
00247                (_buf, dynamic_cast<Float64 *>(b)->_buf, op);
00248     default:
00249         return false;
00250     }
00251 }
00252 
00261 void
00262 Int16::dump(ostream &strm) const
00263 {
00264     strm << DapIndent::LMarg << "Int16::dump - ("
00265     << (void *)this << ")" << endl ;
00266     DapIndent::Indent() ;
00267     BaseType::dump(strm) ;
00268     strm << DapIndent::LMarg << "value: " << _buf << endl ;
00269     DapIndent::UnIndent() ;
00270 }
00271 
00272 } // namespace libdap
00273 

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