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 18315 2008-03-03 20:14:44Z 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 
00057 Int16::Int16(const string &n) : BaseType(n, dods_int16_c)
00058 {}
00059 
00060 Int16::Int16(const Int16 &copy_from) : BaseType(copy_from)
00061 {
00062     _buf = copy_from._buf;
00063 }
00064 
00065 BaseType *
00066 Int16::ptr_duplicate()
00067 {
00068     return new Int16(*this);
00069 }
00070 
00071 Int16 &
00072 Int16::operator=(const Int16 &rhs)
00073 {
00074     if (this == &rhs)
00075         return *this;
00076 
00077     dynamic_cast<BaseType &>(*this) = rhs;
00078 
00079     _buf = rhs._buf;
00080 
00081     return *this;
00082 }
00083 
00084 unsigned int
00085 Int16::width()
00086 {
00087     return sizeof(dods_int16);
00088 }
00089 
00090 bool
00091 Int16::serialize(const string &dataset, ConstraintEvaluator &eval, DDS &dds,
00092                  Marshaller &m, bool ce_eval)
00093 {
00094     dds.timeout_on();
00095 
00096     if (!read_p())
00097         read(dataset);  // read() throws Error and InternalErr
00098 
00099 #if EVAL
00100     if (ce_eval && !eval.eval_selection(dds, dataset))
00101         return true;
00102 #endif
00103 
00104     dds.timeout_off();
00105 
00106     m.put_int16( _buf ) ;
00107 
00108     return true;
00109 }
00110 
00111 bool
00112 Int16::deserialize(UnMarshaller &um, DDS *, bool)
00113 {
00114     um.get_int16( _buf ) ;
00115 
00116     return false;
00117 }
00118 
00119 unsigned int
00120 Int16::val2buf(void *val, bool)
00121 {
00122     // Jose Garcia
00123     // This method is public therefore and I believe it has being designed
00124     // to be use by read which must be implemented on the surrogated library,
00125     // thus if the pointer val is NULL, is  an Internal Error.
00126     if (!val)
00127         throw InternalErr(__FILE__, __LINE__,
00128                           "The incoming pointer does not contain any data.");
00129 
00130     _buf = *(dods_int16 *)val;
00131 
00132     return width();
00133 }
00134 
00135 unsigned int
00136 Int16::buf2val(void **val)
00137 {
00138     // Jose Garcia
00139     // The same comment justifying throwing an Error in val2buf applies here.
00140     if (!val)
00141         throw InternalErr(__FILE__, __LINE__, "NULL pointer.");
00142 
00143     if (!*val)
00144         *val = new dods_int16;
00145 
00146     *(dods_int16 *)*val = _buf;
00147 
00148     return width();
00149 }
00150 
00151 dods_int16
00152 Int16::value() const
00153 {
00154     return _buf;
00155 }
00156 
00157 bool
00158 Int16::set_value(dods_int16 i)
00159 {
00160     _buf = i;
00161     set_read_p(true);
00162 
00163     return true;
00164 }
00165 
00166 void
00167 Int16::print_val(FILE *out, string space, bool print_decl_p)
00168 {
00169     if (print_decl_p) {
00170         print_decl(out, space, false);
00171         fprintf(out, " = %d;\n", _buf) ;
00172     }
00173     else
00174         fprintf(out, "%d", _buf) ;
00175 }
00176 
00177 void
00178 Int16::print_val(ostream &out, string space, bool print_decl_p)
00179 {
00180     if (print_decl_p) {
00181         print_decl(out, space, false);
00182         out << " = " << _buf << ";\n" ;
00183     }
00184     else
00185         out << _buf ;
00186 }
00187 
00188 bool
00189 Int16::ops(BaseType *b, int op, const string &dataset)
00190 {
00191 
00192     // Extract the Byte arg's value.
00193     if (!read_p() && !read(dataset)) {
00194         // Jose Garcia
00195         // Since the read method is virtual and implemented outside
00196         // libdap++ if we can not read the data that is the problem
00197         // of the user or of whoever wrote the surrogate library
00198         // implemeting read therefore it is an internal error.
00199         throw InternalErr(__FILE__, __LINE__, "This value not read!");
00200     }
00201 
00202     // Extract the second arg's value.
00203     if (!b->read_p() && !b->read(dataset)) {
00204         // Jose Garcia
00205         // Since the read method is virtual and implemented outside
00206         // libdap++ if we can not read the data that is the problem
00207         // of the user or of whoever wrote the surrogate library
00208         // implemeting read therefore it is an internal error.
00209         throw InternalErr(__FILE__, __LINE__, "This value not read!");
00210     }
00211 
00212     switch (b->type()) {
00213     case dods_byte_c:
00214         return rops<dods_int16, dods_byte, SUCmp<dods_int16, dods_byte> >
00215                (_buf, dynamic_cast<Byte *>(b)->_buf, op);
00216     case dods_int16_c:
00217         return rops<dods_int16, dods_int16, Cmp<dods_int16, dods_int16> >
00218                (_buf, dynamic_cast<Int16 *>(b)->_buf, op);
00219     case dods_uint16_c:
00220         return rops<dods_int16, dods_uint16, SUCmp<dods_int16, dods_uint16> >
00221                (_buf, dynamic_cast<UInt16 *>(b)->_buf, op);
00222     case dods_int32_c:
00223         return rops<dods_int16, dods_int32, Cmp<dods_int16, dods_int32> >
00224                (_buf, dynamic_cast<Int32 *>(b)->_buf, op);
00225     case dods_uint32_c:
00226         return rops<dods_int16, dods_uint32, SUCmp<dods_int16, dods_uint32> >
00227                (_buf, dynamic_cast<UInt32 *>(b)->_buf, op);
00228     case dods_float32_c:
00229         return rops<dods_int16, dods_float32, Cmp<dods_int16, dods_float32> >
00230                (_buf, dynamic_cast<Float32 *>(b)->_buf, op);
00231     case dods_float64_c:
00232         return rops<dods_int16, dods_float64, Cmp<dods_int16, dods_float64> >
00233                (_buf, dynamic_cast<Float64 *>(b)->_buf, op);
00234     default:
00235         return false;
00236     }
00237 }
00238 
00247 void
00248 Int16::dump(ostream &strm) const
00249 {
00250     strm << DapIndent::LMarg << "Int16::dump - ("
00251     << (void *)this << ")" << endl ;
00252     DapIndent::Indent() ;
00253     BaseType::dump(strm) ;
00254     strm << DapIndent::LMarg << "value: " << _buf << endl ;
00255     DapIndent::UnIndent() ;
00256 }
00257 
00258 } // namespace libdap
00259 

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