libdap++  Updated for version 3.14.0
UInt16.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 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 
78 UInt16::UInt16(const string &n) : BaseType(n, dods_uint16_c), d_buf(0)
79 {}
80 
88 UInt16::UInt16(const string &n, const string &d) : BaseType(n, d, dods_uint16_c), d_buf(0)
89 {}
90 
91 UInt16::UInt16(const UInt16 &copy_from) : BaseType(copy_from)
92 {
93  d_buf = copy_from.d_buf;
94 }
95 
96 BaseType *
98 {
99  return new UInt16(*this);
100 }
101 
102 UInt16 &
104 {
105  if (this == &rhs)
106  return *this;
107 
108  dynamic_cast<BaseType &>(*this) = rhs;
109 
110  d_buf = rhs.d_buf;
111 
112  return *this;
113 }
114 
115 unsigned int
116 UInt16::width(bool) const
117 {
118  return sizeof(dods_uint16);
119 }
120 
121 bool
122 UInt16::serialize(ConstraintEvaluator &eval, DDS &dds, Marshaller &m, bool ce_eval)
123 {
124  dds.timeout_on();
125 
126  if (!read_p())
127  read(); // read() throws Error and InternalErr
128 
129  if (ce_eval && !eval.eval_selection(dds, dataset()))
130  return true;
131 
132  dds.timeout_off();
133 
134  m.put_uint16( d_buf ) ;
135 
136  return true;
137 }
138 
139 bool
141 {
142  um.get_uint16( d_buf ) ;
143 
144  return false;
145 }
146 
147 void
149 {
150  checksum.AddData(reinterpret_cast<uint8_t*>(&d_buf), sizeof(d_buf));
151 }
152 
161 void
162 UInt16::serialize(D4StreamMarshaller &m, DMR &, /*ConstraintEvaluator &,*/ bool)
163 {
164  if (!read_p())
165  read(); // read() throws Error
166 
167  m.put_uint16( d_buf ) ;
168 }
169 
170 void
172 {
173  um.get_uint16( d_buf ) ;
174 }
175 
176 unsigned int
177 UInt16::val2buf(void *val, bool)
178 {
179  // Jose Garcia
180  // This method is public therefore and I believe it has being designed
181  // to be use by read which must be implemented on the surrogated library,
182  // thus if the pointer val is NULL, is an Internal Error.
183  if (!val)
184  throw InternalErr(__FILE__, __LINE__,
185  "The incoming pointer does not contain any data.");
186 
187  d_buf = *(dods_uint16 *)val;
188 
189  return width();
190 }
191 
192 unsigned int
193 UInt16::buf2val(void **val)
194 {
195  // Jose Garcia
196  // The same comment justifying throwing an Error in val2buf applies here.
197  if (!val)
198  throw InternalErr(__FILE__, __LINE__, "NULL pointer.");
199 
200  if (!*val)
201  *val = new dods_uint16;
202 
203  *(dods_uint16 *)*val = d_buf;
204 
205  return width();
206 }
207 
210 {
211  return d_buf;
212 }
213 
214 bool
216 {
217  d_buf = i;
218  set_read_p(true);
219 
220  return true;
221 }
222 
223 void
224 UInt16::print_val(FILE *out, string space, bool print_decl_p)
225 {
226  ostringstream oss;
227  print_val(oss, space, print_decl_p);
228  fwrite(oss.str().data(), sizeof(char), oss.str().length(), out);
229 }
230 
231 void
232 UInt16::print_val(ostream &out, string space, bool print_decl_p)
233 {
234  if (print_decl_p) {
235  print_decl(out, space, false);
236  out << " = " << (unsigned int)d_buf << ";\n" ;
237  }
238  else
239  out << (unsigned int)d_buf ;
240 }
241 
242 bool
244 {
245  // Extract the Byte arg's value.
246  if (!read_p() && !read()) {
247  // Jose Garcia
248  // Since the read method is virtual and implemented outside
249  // libdap++ if we cannot read the data that is the problem
250  // of the user or of whoever wrote the surrogate library
251  // implemeting read therefore it is an internal error.
252  throw InternalErr(__FILE__, __LINE__, "This value was not read!");
253  }
254 
255  // Extract the second arg's value.
256  if (!b || !(b->read_p() || b->read())) {
257  // Jose Garcia
258  // Since the read method is virtual and implemented outside
259  // libdap++ if we cannot read the data that is the problem
260  // of the user or of whoever wrote the surrogate library
261  // implemeting read therefore it is an internal error.
262  throw InternalErr(__FILE__, __LINE__, "This value was not read!");
263  }
264 
265  switch (b->type()) {
266  case dods_int8_c:
267  return USCmp<dods_uint16, dods_int8>(op, d_buf, static_cast<Int8*>(b)->value());
268  case dods_byte_c:
269  return Cmp<dods_uint16, dods_byte>(op, d_buf, static_cast<Byte*>(b)->value());
270  case dods_int16_c:
271  return USCmp<dods_uint16, dods_int16>(op, d_buf, static_cast<Int16*>(b)->value());
272  case dods_uint16_c:
273  return Cmp<dods_uint16, dods_uint16>(op, d_buf, static_cast<UInt16*>(b)->value());
274  case dods_int32_c:
275  return USCmp<dods_uint16, dods_int32>(op, d_buf, static_cast<Int32*>(b)->value());
276  case dods_uint32_c:
277  return Cmp<dods_uint16, dods_uint32>(op, d_buf, static_cast<UInt32*>(b)->value());
278  case dods_int64_c:
279  return USCmp<dods_uint16, dods_int64>(op, d_buf, static_cast<Int64*>(b)->value());
280  case dods_uint64_c:
281  return Cmp<dods_uint16, dods_uint64>(op, d_buf, static_cast<UInt64*>(b)->value());
282  case dods_float32_c:
283  return USCmp<dods_uint16, dods_float32>(op, d_buf, static_cast<Float32*>(b)->value());
284  case dods_float64_c:
285  return USCmp<dods_uint16, dods_float64>(op, d_buf, static_cast<Float64*>(b)->value());
286  default:
287  return false;
288  }
289 }
290 
299 void
300 UInt16::dump(ostream &strm) const
301 {
302  strm << DapIndent::LMarg << "UInt16::dump - ("
303  << (void *)this << ")" << endl ;
305  BaseType::dump(strm) ;
306  strm << DapIndent::LMarg << "value: " << d_buf << endl ;
308 }
309 
310 } // namespace libdap
311 
virtual bool read()
Read data into a local buffer.
Definition: BaseType.cc:805
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:421
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:905
virtual void dump(ostream &strm) const
dumps information about this object
Definition: UInt16.cc:300
Read data from the stream made by D4StreamMarshaller.
virtual void compute_checksum(Crc32 &checksum)
include the data for this variable in the checksum DAP4 includes a checksum with every data response...
Definition: UInt16.cc:148
Holds an unsigned 16-bit integer.
Definition: UInt16.h:57
Definition: crc.h:76
virtual dods_uint16 value() const
Definition: UInt16.cc:209
UInt16(const string &n)
Definition: UInt16.cc:78
void timeout_off()
Definition: DDS.cc:894
Type type() const
Returns the type of the class instance.
Definition: BaseType.cc:306
Holds a 32-bit floating point value.
Definition: Float32.h:61
uint16_t dods_uint16
virtual void put_uint16(dods_uint16 val)
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:299
UInt16 & operator=(const UInt16 &rhs)
Definition: UInt16.cc:103
Marshaller that knows how to marshal/serialize dap data objects to a C++ iostream using DAP4's receiv...
Holds a 16-bit signed integer value.
Definition: Int16.h:59
virtual void get_uint16(dods_uint16 &val)
static void Indent()
Definition: DapIndent.cc:45
virtual void put_uint16(dods_uint16 val)=0
virtual void dump(ostream &strm) const
dumps information about this object
Definition: BaseType.cc:237
virtual void set_read_p(bool state)
Sets the value of the read_p property.
Definition: BaseType.cc:454
virtual bool ops(BaseType *b, int op)
Evaluate relational operators.
Definition: UInt16.cc:243
Holds a 64-bit unsigned integer.
Definition: UInt64.h:49
void AddData(const uint8_t *pData, const uint32_t length)
Definition: crc.h:84
virtual bool deserialize(UnMarshaller &um, DDS *dds, bool reuse=false)
Receive data from the net.
Definition: UInt16.cc:140
void timeout_on()
Definition: DDS.cc:886
Evaluate a constraint expression.
static ostream & LMarg(ostream &strm)
Definition: DapIndent.cc:80
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:53
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 unsigned int buf2val(void **val)
Reads the class data.
Definition: UInt16.cc:193
virtual void print_val(FILE *out, string space="", bool print_decl_p=true)
Prints the value of the variable.
Definition: UInt16.cc:224
virtual bool set_value(dods_uint16 val)
Definition: UInt16.cc:215
virtual bool serialize(ConstraintEvaluator &eval, DDS &dds, Marshaller &m, bool ce_eval=true)
Move data to the net.
Definition: UInt16.cc:122
dods_uint16 d_buf
Definition: UInt16.h:60
Holds a 32-bit unsigned integer.
Definition: UInt32.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: UInt16.cc:116
virtual unsigned int val2buf(void *val, bool reuse=false)
Loads class data.
Definition: UInt16.cc:177
Holds a 32-bit signed integer.
Definition: Int32.h:65
virtual void get_uint16(dods_uint16 &val)=0
virtual BaseType * ptr_duplicate()
Definition: UInt16.cc:97