libdap++  Updated for version 3.13.3
Int16.cc
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1 
2 // -*- mode: c++; c-basic-offset:4 -*-
3 
4 // This file is part of libdap, A C++ implementation of the OPeNDAP Data
5 // Access Protocol.
6 
7 // Copyright (c) 2002,2003 OPeNDAP, Inc.
8 // Author: James Gallagher <jgallagher@opendap.org>
9 //
10 // This library is free software; you can redistribute it and/or
11 // modify it under the terms of the GNU Lesser General Public
12 // License as published by the Free Software Foundation; either
13 // version 2.1 of the License, or (at your option) any later version.
14 //
15 // This library is distributed in the hope that it will be useful,
16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 // Lesser General Public License for more details.
19 //
20 // You should have received a copy of the GNU Lesser General Public
21 // License along with this library; if not, write to the Free Software
22 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 //
24 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
25 
26 // (c) COPYRIGHT URI/MIT 1996-1999
27 // Please read the full copyright statement in the file COPYRIGHT_URI.
28 //
29 // Authors:
30 // jhrg,jimg James Gallagher <jgallagher@gso.uri.edu>
31 
32 // Implementation for Int32.
33 //
34 // jhrg 9/7/94
35 
36 
37 #include "config.h"
38 
39 #include <sstream>
40 
41 #include "Byte.h" // synonymous with UInt8 and Char
42 #include "Int8.h"
43 #include "Int16.h"
44 #include "UInt16.h"
45 #include "Int32.h"
46 #include "UInt32.h"
47 #include "Int64.h"
48 #include "UInt64.h"
49 #include "Float32.h"
50 #include "Float64.h"
51 #include "Str.h"
52 #include "Url.h"
53 
54 
55 #include "Marshaller.h"
56 #include "UnMarshaller.h"
57 
58 #include "DDS.h"
59 #include "util.h"
60 #include "parser.h"
61 #include "Operators.h"
62 #include "dods-limits.h"
63 #include "debug.h"
64 #include "InternalErr.h"
65 
66 using std::cerr;
67 using std::endl;
68 
69 namespace libdap {
70 
75 Int16::Int16(const string &n) : BaseType(n, dods_int16_c)
76 {}
77 
85 Int16::Int16(const string &n, const string &d) : BaseType(n, d, dods_int16_c)
86 {}
87 
88 Int16::Int16(const Int16 &copy_from) : BaseType(copy_from)
89 {
90  d_buf = copy_from.d_buf;
91 }
92 
93 BaseType *
95 {
96  return new Int16(*this);
97 }
98 
99 Int16 &
101 {
102  if (this == &rhs)
103  return *this;
104 
105  dynamic_cast<BaseType &>(*this) = rhs;
106 
107  d_buf = rhs.d_buf;
108 
109  return *this;
110 }
111 
112 unsigned int
114 {
115  return sizeof(dods_int16);
116 }
117 
118 bool
120  Marshaller &m, bool ce_eval)
121 {
122  dds.timeout_on();
123 
124  if (!read_p())
125  read(); // read() throws Error and InternalErr
126 
127 #if EVAL
128  if (ce_eval && !eval.eval_selection(dds, dataset()))
129  return true;
130 #endif
131 
132  dds.timeout_off();
133 
134  m.put_int16( d_buf ) ;
135 
136  return true;
137 }
138 
139 bool
141 {
142  um.get_int16( d_buf ) ;
143 
144  return false;
145 }
146 
147 unsigned int
148 Int16::val2buf(void *val, bool)
149 {
150  // Jose Garcia
151  // This method is public therefore and I believe it has being designed
152  // to be use by read which must be implemented on the surrogated library,
153  // thus if the pointer val is NULL, is an Internal Error.
154  if (!val)
155  throw InternalErr(__FILE__, __LINE__,
156  "The incoming pointer does not contain any data.");
157 
158  d_buf = *(dods_int16 *)val;
159 
160  return width();
161 }
162 
163 unsigned int
164 Int16::buf2val(void **val)
165 {
166  // Jose Garcia
167  // The same comment justifying throwing an Error in val2buf applies here.
168  if (!val)
169  throw InternalErr(__FILE__, __LINE__, "NULL pointer.");
170 
171  if (!*val)
172  *val = new dods_int16;
173 
174  *(dods_int16 *)*val = d_buf;
175 
176  return width();
177 }
178 
181 {
182  return d_buf;
183 }
184 
185 bool
187 {
188  d_buf = i;
189  set_read_p(true);
190 
191  return true;
192 }
193 
194 void
195 Int16::print_val(FILE *out, string space, bool print_decl_p)
196 {
197  ostringstream oss;
198  print_val(oss, space, print_decl_p);
199  fwrite(oss.str().data(), sizeof(char), oss.str().length(), out);
200 }
201 
202 void
203 Int16::print_val(ostream &out, string space, bool print_decl_p)
204 {
205  if (print_decl_p) {
206  print_decl(out, space, false);
207  out << " = " << d_buf << ";\n" ;
208  }
209  else
210  out << d_buf ;
211 }
212 
213 bool
214 Int16::ops(BaseType *b, int op)
215 {
216 
217  // Extract the Byte arg's value.
218  if (!read_p() && !read()) {
219  // Jose Garcia
220  // Since the read method is virtual and implemented outside
221  // libdap++ if we cannot read the data that is the problem
222  // of the user or of whoever wrote the surrogate library
223  // implemeting read therefore it is an internal error.
224  throw InternalErr(__FILE__, __LINE__, "This value not read!");
225  }
226 
227  // Extract the second arg's value.
228  if (!b || !(b->read_p() || b->read())) {
229  // Jose Garcia
230  // Since the read method is virtual and implemented outside
231  // libdap++ if we cannot read the data that is the problem
232  // of the user or of whoever wrote the surrogate library
233  // implemeting read therefore it is an internal error.
234  throw InternalErr(__FILE__, __LINE__, "This value not read!");
235  }
236 
237  switch (b->type()) {
238  case dods_int8_c:
239  return Cmp<dods_int16, dods_int8>(op, d_buf, static_cast<Int8*>(b)->value());
240  case dods_byte_c:
241  return SUCmp<dods_int16, dods_byte>(op, d_buf, static_cast<Byte*>(b)->value());
242  case dods_int16_c:
243  return Cmp<dods_int16, dods_int16>(op, d_buf, static_cast<Int16*>(b)->value());
244  case dods_uint16_c:
245  return SUCmp<dods_int16, dods_uint16>(op, d_buf, static_cast<UInt16*>(b)->value());
246  case dods_int32_c:
247  return Cmp<dods_int16, dods_int32>(op, d_buf, static_cast<Int32*>(b)->value());
248  case dods_uint32_c:
249  return SUCmp<dods_int16, dods_uint32>(op, d_buf, static_cast<UInt32*>(b)->value());
250  case dods_int64_c:
251  return Cmp<dods_int16, dods_int64>(op, d_buf, static_cast<Int64*>(b)->value());
252  case dods_uint64_c:
253  return SUCmp<dods_int16, dods_uint64>(op, d_buf, static_cast<UInt64*>(b)->value());
254  case dods_float32_c:
255  return Cmp<dods_int16, dods_float32>(op, d_buf, static_cast<Float32*>(b)->value());
256  case dods_float64_c:
257  return Cmp<dods_int16, dods_float64>(op, d_buf, static_cast<Float64*>(b)->value());
258  default:
259  return false;
260  }
261 }
262 
271 void
272 Int16::dump(ostream &strm) const
273 {
274  strm << DapIndent::LMarg << "Int16::dump - ("
275  << (void *)this << ")" << endl ;
277  BaseType::dump(strm) ;
278  strm << DapIndent::LMarg << "value: " << d_buf << endl ;
280 }
281 
282 } // namespace libdap
283 
virtual bool read()
Read data into a local buffer.
Definition: BaseType.cc:923
Holds a 16-bit signed integer value.
Definition: Int8.h:42
Holds a64-bit signed integer.
Definition: Int64.h:49
virtual bool read_p()
Has this variable been read?
Definition: BaseType.cc:579
static void UnIndent()
Definition: DapIndent.cc:51
abstract base class used to unmarshall/deserialize dap data objects
Definition: UnMarshaller.h:54
virtual void print_decl(FILE *out, string space=" ", bool print_semi=true, bool constraint_info=false, bool constrained=false)
Print an ASCII representation of the variable structure.
Definition: BaseType.cc:985
virtual bool deserialize(UnMarshaller &um, DDS *dds, bool reuse=false)
Receive data from the net.
Definition: Int16.cc:140
virtual dods_int16 value() const
Definition: Int16.cc:180
virtual void dump(ostream &strm) const
dumps information about this object
Definition: Int16.cc:272
Int16 & operator=(const Int16 &rhs)
Definition: Int16.cc:100
Holds an unsigned 16-bit integer.
Definition: UInt16.h:57
virtual bool ops(BaseType *b, int op)
Evaluate relational operators.
Definition: Int16.cc:214
virtual unsigned int width(bool constrained=false)
Definition: Int16.cc:113
void timeout_off()
Definition: DDS.cc:862
virtual BaseType * ptr_duplicate()
Definition: Int16.cc:94
Type type() const
Returns the type of the class instance.
Definition: BaseType.cc:282
Holds a 32-bit floating point value.
Definition: Float32.h:59
A class for software fault reporting.
Definition: InternalErr.h:64
string dataset() const
Returns the name of the dataset used to create this instance.
Definition: BaseType.cc:275
bool eval_selection(DDS &dds, const string &dataset)
Evaluate a boolean-valued constraint expression. This is main method for the evaluator ans is called ...
Holds a 16-bit signed integer value.
Definition: Int16.h:57
static void Indent()
Definition: DapIndent.cc:45
virtual void dump(ostream &strm) const
dumps information about this object
Definition: BaseType.cc:230
virtual bool serialize(ConstraintEvaluator &eval, DDS &dds, Marshaller &m, bool ce_eval=true)
Move data to the net.
Definition: Int16.cc:119
virtual unsigned int buf2val(void **val)
Reads the class data.
Definition: Int16.cc:164
virtual bool set_value(dods_int16 val)
Definition: Int16.cc:186
virtual void set_read_p(bool state)
Sets the value of the read_p property.
Definition: BaseType.cc:618
dods_int16 d_buf
Definition: Int16.h:60
Int16(const string &n)
Definition: Int16.cc:75
Holds a 64-bit unsigned integer.
Definition: UInt64.h:49
virtual void put_int16(dods_int16 val)=0
virtual void get_int16(dods_int16 &val)=0
void timeout_on()
Definition: DDS.cc:854
virtual void print_val(FILE *out, string space="", bool print_decl_p=true)
Prints the value of the variable.
Definition: Int16.cc:195
Evaluate a constraint expression.
static ostream & LMarg(ostream &strm)
Definition: DapIndent.cc:80
int16_t dods_int16
The basic data type for the DODS DAP types.
Definition: BaseType.h:199
abstract base class used to marshal/serialize dap data objects
Definition: Marshaller.h:53
Holds a 64-bit (double precision) floating point value.
Definition: Float64.h:60
Holds a single byte.
Definition: Byte.h:60
Holds a 32-bit unsigned integer.
Definition: UInt32.h:59
virtual unsigned int val2buf(void *val, bool reuse=false)
Loads class data.
Definition: Int16.cc:148
Holds a 32-bit signed integer.
Definition: Int32.h:64