libdap Updated for version 3.20.11
libdap4 is an implementation of OPeNDAP's DAP protocol.
Int32.cc
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 1994-1999
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//#define DODS_DEBUG
40
41#include <sstream>
42
43#include "Byte.h" // synonymous with UInt8 and Char
44#include "Int8.h"
45#include "Int16.h"
46#include "UInt16.h"
47#include "Int32.h"
48#include "UInt32.h"
49#include "Int64.h"
50#include "UInt64.h"
51#include "Float32.h"
52#include "Float64.h"
53#include "Str.h"
54#include "Url.h"
55
56#include "DDS.h"
57#include "Marshaller.h"
58#include "UnMarshaller.h"
59
60#include "DMR.h"
61#include "D4StreamMarshaller.h"
62#include "D4StreamUnMarshaller.h"
63
64#include "util.h"
65#include "parser.h"
66#include "Operators.h"
67#include "dods-limits.h"
68#include "debug.h"
69#include "InternalErr.h"
70#include "DapIndent.h"
71
72using std::cerr;
73using std::endl;
74
75namespace libdap {
76
84Int32::Int32(const string &n) : BaseType(n, dods_int32_c), d_buf(0)
85{}
86
94Int32::Int32(const string &n, const string &d) : BaseType(n, d, dods_int32_c), d_buf(0)
95{}
96
97Int32::Int32(const Int32 &copy_from) : BaseType(copy_from)
98{
99 d_buf = copy_from.d_buf;
100}
101
102BaseType *
104{
105 return new Int32(*this);
106}
107
108Int32::~Int32()
109{
110 DBG(cerr << "~Int32" << endl);
111}
112
113Int32 &
114Int32::operator=(const Int32 &rhs)
115{
116 if (this == &rhs)
117 return *this;
118 BaseType::operator=(rhs);
119 d_buf = rhs.d_buf;
120 return *this;
121}
122
123unsigned int
124Int32::width(bool) const
125{
126 return sizeof(dods_int32);
127}
128
129bool
131 Marshaller &m, bool ce_eval)
132{
133#if USE_LOCAL_TIMEOUT_SCHEME
134 dds.timeout_on();
135#endif
136 if (!read_p())
137 read(); // read() throws Error and InternalErr
138
139 if (ce_eval && !eval.eval_selection(dds, dataset()))
140 return true;
141#if USE_LOCAL_TIMEOUT_SCHEME
142 dds.timeout_off();
143#endif
144 m.put_int32( d_buf ) ;
145
146 return true;
147}
148
149bool
151{
152 um.get_int32( d_buf ) ;
153
154 return false;
155}
156
157void
159{
160 checksum.AddData(reinterpret_cast<uint8_t*>(&d_buf), sizeof(d_buf));
161}
162
171void
172Int32::serialize(D4StreamMarshaller &m, DMR &, /*ConstraintEvaluator &,*/ bool)
173{
174 if (!read_p())
175 read(); // read() throws Error
176
177 m.put_int32( d_buf ) ;
178}
179
180void
182{
183 um.get_int32( d_buf ) ;
184}
185
186unsigned int
187Int32::val2buf(void *val, bool)
188{
189 // Jose Garcia
190 // This method is public therefore and I believe it has being designed
191 // to be use by read which must be implemented on the surrogated library,
192 // thus if the pointer val is NULL, is an Internal Error.
193 if (!val)
194 throw InternalErr(__FILE__, __LINE__,
195 "The incoming pointer does not contain any data.");
196
197 d_buf = *(dods_int32 *)val;
198
199 return width();
200}
201
202unsigned int
203Int32::buf2val(void **val)
204{
205 // Jose Garcia
206 // The same comment justifying throwing an Error in val2buf applies here.
207 if (!val)
208 throw InternalErr(__FILE__, __LINE__, "NULL pointer.");
209
210 if (!*val)
211 *val = new dods_int32;
212
213 *(dods_int32 *)*val = d_buf;
214
215 return width();
216}
217
218dods_int32
219Int32::value() const
220{
221 return d_buf;
222}
223
224bool
225Int32::set_value(dods_int32 i)
226{
227 d_buf = i;
228 set_read_p(true);
229
230 return true;
231}
232
233void
234Int32::print_val(FILE *out, string space, bool print_decl_p)
235{
236 ostringstream oss;
237 print_val(oss, space, print_decl_p);
238 fwrite(oss.str().data(), sizeof(char), oss.str().length(), out);
239}
240
241void Int32::print_val(ostream &out, string space, bool print_decl_p)
242{
243 if (print_decl_p) {
244 print_decl(out, space, false);
245 out << " = " << (int) d_buf << ";\n";
246 }
247 else
248 out << (int) d_buf;
249}
250
251bool
253{
254 if (!read_p() && !read()) {
255 // Jose Garcia
256 // Since the read method is virtual and implemented outside
257 // libdap++ if we cannot read the data that is the problem
258 // of the user or of whoever wrote the surrogate library
259 // implemeting read therefore it is an internal error.
260 throw InternalErr(__FILE__, __LINE__, "This value not read!");
261 }
262
263 // Extract the second arg's value.
264 if (!b || !(b->read_p() || b->read())) {
265 // Jose Garcia
266 // Since the read method is virtual and implemented outside
267 // libdap++ if we cannot read the data that is the problem
268 // of the user or of whoever wrote the surrogate library
269 // implemeting read therefore it is an internal error.
270 throw InternalErr(__FILE__, __LINE__, "This value not read!");
271 }
272
273 return d4_ops(b, op);
274}
275
279bool Int32::d4_ops(BaseType *b, int op)
280{
281 DBG(cerr << "b->typename(): " << b->type_name() << endl);
282 switch (b->type()) {
283 case dods_int8_c:
284 return Cmp<dods_int32, dods_int8>(op, d_buf, static_cast<Int8*>(b)->value());
285 case dods_byte_c:
286 return Cmp<dods_int32, dods_byte>(op, d_buf, static_cast<Byte*>(b)->value());
287 case dods_int16_c:
288 return Cmp<dods_int32, dods_int16>(op, d_buf, static_cast<Int16*>(b)->value());
289 case dods_uint16_c:
290 return Cmp<dods_int32, dods_uint16>(op, d_buf, static_cast<UInt16*>(b)->value());
291 case dods_int32_c:
292 return Cmp<dods_int32, dods_int32>(op, d_buf, static_cast<Int32*>(b)->value());
293 case dods_uint32_c:
294 return Cmp<dods_int32, dods_uint32>(op, d_buf, static_cast<UInt32*>(b)->value());
295 case dods_int64_c:
296 return Cmp<dods_int32, dods_int64>(op, d_buf, static_cast<Int64*>(b)->value());
297 case dods_uint64_c:
298 return Cmp<dods_int32, dods_uint64>(op, d_buf, static_cast<UInt64*>(b)->value());
299 case dods_float32_c:
300 return Cmp<dods_int32, dods_float32>(op, d_buf, static_cast<Float32*>(b)->value());
301 case dods_float64_c:
302 return Cmp<dods_int32, dods_float64>(op, d_buf, static_cast<Float64*>(b)->value());
303 case dods_str_c:
304 case dods_url_c:
305 throw Error(malformed_expr, "Relational operators can only compare compatible types (number, string).");
306 default:
307 throw Error(malformed_expr, "Relational operators only work with scalar types.");
308 }
309}
310
319void
320Int32::dump(ostream &strm) const
321{
322 strm << DapIndent::LMarg << "Int32::dump - ("
323 << (void *)this << ")" << endl ;
324 DapIndent::Indent() ;
325 BaseType::dump(strm) ;
326 strm << DapIndent::LMarg << "value: " << d_buf << endl ;
327 DapIndent::UnIndent() ;
328}
329
330} // namespace libdap
331
Definition: crc.h:77
void AddData(const uint8_t *pData, const uint32_t length)
Definition: crc.h:98
The basic data type for the DODS DAP types.
Definition: BaseType.h:118
virtual string type_name() const
Returns the type of the class instance as a string.
Definition: BaseType.cc:375
virtual bool read()
Read data into a local buffer.
Definition: BaseType.cc:895
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:999
virtual bool read_p()
Has this variable been read?
Definition: BaseType.cc:476
virtual void set_read_p(bool state)
Sets the value of the read_p property.
Definition: BaseType.cc:512
virtual string dataset() const
Returns the name of the dataset used to create this instance.
Definition: BaseType.cc:354
void dump(ostream &strm) const override
dumps information about this object
Definition: BaseType.cc:287
virtual Type type() const
Returns the type of the class instance.
Definition: BaseType.cc:361
Holds a single byte.
Definition: Byte.h:61
Evaluate a constraint expression.
bool eval_selection(DDS &dds, const std::string &dataset)
Evaluate a boolean-valued constraint expression. This is main method for the evaluator and is called ...
Marshaller that knows how to marshal/serialize dap data objects to a C++ iostream using DAP4's receiv...
Read data from the stream made by D4StreamMarshaller.
A class for error processing.
Definition: Error.h:94
Holds a 32-bit floating point value.
Definition: Float32.h:62
Holds a 64-bit (double precision) floating point value.
Definition: Float64.h:61
Holds a 16-bit signed integer value.
Definition: Int16.h:60
Holds a 32-bit signed integer.
Definition: Int32.h:66
virtual unsigned int width(bool constrained=false) const
How many bytes does this variable use Return the number of bytes of storage this variable uses....
Definition: Int32.cc:124
virtual unsigned int buf2val(void **val)
Reads the class data.
Definition: Int32.cc:203
virtual void compute_checksum(Crc32 &checksum)
include the data for this variable in the checksum DAP4 includes a checksum with every data response....
Definition: Int32.cc:158
virtual unsigned int val2buf(void *val, bool reuse=false)
Loads class data.
Definition: Int32.cc:187
virtual BaseType * ptr_duplicate()
Definition: Int32.cc:103
virtual void dump(ostream &strm) const
dumps information about this object
Definition: Int32.cc:320
virtual bool deserialize(UnMarshaller &um, DDS *dds, bool reuse=false)
Receive data from the net.
Definition: Int32.cc:150
virtual bool d4_ops(BaseType *b, int op)
Definition: Int32.cc:279
virtual void print_val(FILE *out, string space="", bool print_decl_p=true)
Prints the value of the variable.
Definition: Int32.cc:234
virtual bool ops(BaseType *b, int op)
Evaluate relational operators.
Definition: Int32.cc:252
virtual bool serialize(ConstraintEvaluator &eval, DDS &dds, Marshaller &m, bool ce_eval=true)
Move data to the net, then remove them from the object.
Definition: Int32.cc:130
Int32(const string &n)
Definition: Int32.cc:84
Holds a64-bit signed integer.
Definition: Int64.h:50
Holds an 8-bit signed integer value.
Definition: Int8.h:43
A class for software fault reporting.
Definition: InternalErr.h:65
abstract base class used to marshal/serialize dap data objects
Definition: Marshaller.h:50
Holds an unsigned 16-bit integer.
Definition: UInt16.h:58
Holds a 32-bit unsigned integer.
Definition: UInt32.h:60
Holds a 64-bit unsigned integer.
Definition: UInt64.h:50
abstract base class used to unmarshall/deserialize dap data objects
Definition: UnMarshaller.h:55
top level DAP object to house generic methods
Definition: AlarmHandler.h:36