libdap  Updated for version 3.17.2
UInt32.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 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 #include "DDS.h"
55 #include "Marshaller.h"
56 #include "UnMarshaller.h"
57 
58 #include "DMR.h"
59 #include "D4StreamMarshaller.h"
60 #include "D4StreamUnMarshaller.h"
61 
62 #include "util.h"
63 #include "parser.h"
64 #include "Operators.h"
65 #include "dods-limits.h"
66 #include "debug.h"
67 #include "InternalErr.h"
68 
69 using std::cerr;
70 using std::endl;
71 
72 namespace libdap {
73 
79 UInt32::UInt32(const string &n) : BaseType(n, dods_uint32_c), d_buf(0)
80 {}
81 
89 UInt32::UInt32(const string &n, const string &d) : BaseType(n, d, dods_uint32_c), d_buf(0)
90 {}
91 
92 UInt32::UInt32(const UInt32 &copy_from) : BaseType(copy_from)
93 {
94  d_buf = copy_from.d_buf;
95 }
96 
97 BaseType *
99 {
100  return new UInt32(*this);
101 }
102 
103 UInt32 &
104 UInt32::operator=(const UInt32 &rhs)
105 {
106  if (this == &rhs)
107  return *this;
108 
109  dynamic_cast<BaseType &>(*this) = rhs;
110 
111  d_buf = rhs.d_buf;
112 
113  return *this;
114 }
115 
116 unsigned int
117 UInt32::width(bool) const
118 {
119  return sizeof(dods_uint32);
120 }
121 
122 bool
123 UInt32::serialize(ConstraintEvaluator &eval, DDS &dds, Marshaller &m, bool ce_eval)
124 {
125 #if USE_LOCAL_TIMEOUT_SCHEME
126  dds.timeout_on();
127 #endif
128  if (!read_p())
129  read(); // read() throws Error and InternalErr
130 
131  if (ce_eval && !eval.eval_selection(dds, dataset()))
132  return true;
133 #if USE_LOCAL_TIMEOUT_SCHEME
134  dds.timeout_off();
135 #endif
136  m.put_uint32( d_buf ) ;
137 
138  return true;
139 }
140 
141 bool
143 {
144  um.get_uint32( d_buf ) ;
145 
146  return false;
147 }
148 
149 void
151 {
152  checksum.AddData(reinterpret_cast<uint8_t*>(&d_buf), sizeof(d_buf));
153 }
154 
163 void
164 UInt32::serialize(D4StreamMarshaller &m, DMR &, /*ConstraintEvaluator &,*/ bool)
165 {
166  if (!read_p())
167  read(); // read() throws Error
168 
169  m.put_uint32( d_buf ) ;
170 }
171 
172 void
174 {
175  um.get_uint32( d_buf ) ;
176 }
177 
178 unsigned int
179 UInt32::val2buf(void *val, bool)
180 {
181 
182  // Jose Garcia
183  // This method is public therefore and I believe it has being designed
184  // to be use by read which must be implemented on the surrogated library,
185  // thus if the pointer val is NULL, is an Internal Error.
186  if (!val)
187  throw InternalErr(__FILE__, __LINE__,
188  "The incoming pointer does not contain any data.");
189 
190  d_buf = *(dods_uint32 *)val;
191 
192  return width();
193 }
194 
195 unsigned int
196 UInt32::buf2val(void **val)
197 {
198  // Jose Garcia
199  // The same comment justifying throwing an Error in val2buf applies here.
200  if (!val)
201  throw InternalErr(__FILE__, __LINE__, "NULL pointer.");
202 
203  if (!*val)
204  *val = new dods_uint32;
205 
206  *(dods_uint32 *)*val = d_buf;
207 
208  return width();
209 }
210 
211 dods_uint32
212 UInt32::value() const
213 {
214  return d_buf;
215 }
216 
217 bool
218 UInt32::set_value(dods_uint32 i)
219 {
220  d_buf = i;
221  set_read_p(true);
222 
223  return true;
224 }
225 
226 void
227 UInt32::print_val(FILE *out, string space, bool print_decl_p)
228 {
229  ostringstream oss;
230  print_val(oss, space, print_decl_p);
231  fwrite(oss.str().data(), sizeof(char), oss.str().length(), out);
232 }
233 
234 void
235 UInt32::print_val(ostream &out, string space, bool print_decl_p)
236 {
237  if (print_decl_p) {
238  print_decl(out, space, false);
239  out << " = " << (unsigned int)d_buf << ";\n" ;
240  }
241  else
242  out << (unsigned int)d_buf ;
243 }
244 
245 bool
247 {
248  // Extract the Byte arg's value.
249  if (!read_p() && !read()) {
250  // Jose Garcia
251  // Since the read method is virtual and implemented outside
252  // libdap++ if we cannot read the data that is the problem
253  // of the user or of whoever wrote the surrogate library
254  // implemeting read therefore it is an internal error.
255  throw InternalErr(__FILE__, __LINE__, "This value was not read!");
256  }
257 
258  // Extract the second arg's value.
259  if (!b || !(b->read_p() || b->read())) {
260  // Jose Garcia
261  // Since the read method is virtual and implemented outside
262  // libdap++ if we cannot read the data that is the problem
263  // of the user or of whoever wrote the surrogate library
264  // implemeting read therefore it is an internal error.
265  throw InternalErr(__FILE__, __LINE__, "This value was not read!");
266  }
267 
268  switch (b->type()) {
269  case dods_int8_c:
270  return USCmp<dods_uint32, dods_int8>(op, d_buf, static_cast<Int8*>(b)->value());
271  case dods_byte_c:
272  return Cmp<dods_uint32, dods_byte>(op, d_buf, static_cast<Byte*>(b)->value());
273  case dods_int16_c:
274  return USCmp<dods_uint32, dods_int16>(op, d_buf, static_cast<Int16*>(b)->value());
275  case dods_uint16_c:
276  return Cmp<dods_uint32, dods_uint16>(op, d_buf, static_cast<UInt16*>(b)->value());
277  case dods_int32_c:
278  return USCmp<dods_uint32, dods_int32>(op, d_buf, static_cast<Int32*>(b)->value());
279  case dods_uint32_c:
280  return Cmp<dods_uint32, dods_uint32>(op, d_buf, static_cast<UInt32*>(b)->value());
281  case dods_int64_c:
282  return USCmp<dods_uint32, dods_int64>(op, d_buf, static_cast<Int64*>(b)->value());
283  case dods_uint64_c:
284  return Cmp<dods_uint32, dods_uint64>(op, d_buf, static_cast<UInt64*>(b)->value());
285  case dods_float32_c:
286  return USCmp<dods_uint32, dods_float32>(op, d_buf, static_cast<Float32*>(b)->value());
287  case dods_float64_c:
288  return USCmp<dods_uint32, dods_float64>(op, d_buf, static_cast<Float64*>(b)->value());
289  default:
290  return false;
291  }
292 }
293 
302 void
303 UInt32::dump(ostream &strm) const
304 {
305  strm << DapIndent::LMarg << "UInt32::dump - ("
306  << (void *)this << ")" << endl ;
307  DapIndent::Indent() ;
308  BaseType::dump(strm) ;
309  strm << DapIndent::LMarg << "value: " << d_buf << endl ;
310  DapIndent::UnIndent() ;
311 }
312 
313 } // namespace libdap
314 
virtual bool read()
Read data into a local buffer.
Definition: BaseType.cc:820
Holds an 8-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:425
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:924
virtual unsigned int buf2val(void **val)
Reads the class data.
Definition: UInt32.cc:196
UInt32(const string &n)
Definition: UInt32.cc:79
Read data from the stream made by D4StreamMarshaller.
Holds an unsigned 16-bit integer.
Definition: UInt16.h:57
Definition: crc.h:76
BaseType(const string &n, const Type &t, bool is_dap4=false)
The BaseType constructor.
Definition: BaseType.cc:125
virtual BaseType * ptr_duplicate()
Definition: UInt32.cc:98
virtual Type type() const
Returns the type of the class instance.
Definition: BaseType.cc:310
Holds a 32-bit floating point value.
Definition: Float32.h:61
virtual void compute_checksum(Crc32 &checksum)
include the data for this variable in the checksum DAP4 includes a checksum with every data response...
Definition: UInt32.cc:150
A class for software fault reporting.
Definition: InternalErr.h:64
virtual string dataset() const
Returns the name of the dataset used to create this instance.
Definition: BaseType.cc:303
Marshaller that knows how to marshal/serialize dap data objects to a C++ iostream using DAP4&#39;s receiv...
Holds a 16-bit signed integer value.
Definition: Int16.h:59
virtual unsigned int width(bool constrained=false) const
How many bytes does this use Return the number of bytes of storage this variable uses. For scalar types, this is pretty simple (an int32 uses 4 bytes, etc.). For arrays and Constructors, it is a bit more complex. Note that a scalar String variable uses sizeof(String*) bytes, not the length of the string. In other words, the value returned is independent of the type. Also note width() of a String array returns the number of elements in the array times sizeof(String*). That is, each different array size is a different data type.
Definition: UInt32.cc:117
virtual void dump(ostream &strm) const
dumps information about this object
Definition: BaseType.cc:236
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: UInt32.cc:123
virtual void set_read_p(bool state)
Sets the value of the read_p property.
Definition: BaseType.cc:461
virtual bool deserialize(UnMarshaller &um, DDS *dds, bool reuse=false)
Receive data from the net.
Definition: UInt32.cc:142
virtual void print_val(FILE *out, string space="", bool print_decl_p=true)
Prints the value of the variable.
Definition: UInt32.cc:227
Holds a 64-bit unsigned integer.
Definition: UInt64.h:49
void AddData(const uint8_t *pData, const uint32_t length)
Definition: crc.h:98
Evaluate a constraint expression.
The basic data type for the DODS DAP types.
Definition: BaseType.h:117
abstract base class used to marshal/serialize dap data objects
Definition: Marshaller.h:50
Holds a 64-bit (double precision) floating point value.
Definition: Float64.h:60
Holds a single byte.
Definition: Byte.h:60
bool eval_selection(DDS &dds, const std::string &dataset)
Evaluate a boolean-valued constraint expression. This is main method for the evaluator ans is called ...
virtual void dump(ostream &strm) const
dumps information about this object
Definition: UInt32.cc:303
virtual unsigned int val2buf(void *val, bool reuse=false)
Loads class data.
Definition: UInt32.cc:179
Holds a 32-bit unsigned integer.
Definition: UInt32.h:59
virtual bool ops(BaseType *b, int op)
Evaluate relational operators.
Definition: UInt32.cc:246
Holds a 32-bit signed integer.
Definition: Int32.h:65