libdap Updated for version 3.21.1
libdap4 is an implementation of OPeNDAP's DAP protocol.
Byte.h
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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 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// Interface for Byte type.
33//
34// jhrg 9/7/94
35
36#ifndef _byte_h
37#define _byte_h 1
38
39#ifndef _dods_datatypes_h
40#include "dods-datatypes.h"
41#endif
42
43#ifndef _basetype_h
44#include "BaseType.h"
45#endif
46
47#ifndef constraint_evaluator_h
48#include "ConstraintEvaluator.h"
49#endif
50
51namespace libdap {
52
59class Byte : public BaseType {
60protected:
62
63public:
64 Byte(const string &n);
65 Byte(const string &n, const string &d);
66
67 virtual ~Byte() {}
68
69 Byte(const Byte &copy_from);
70
71 Byte &operator=(const Byte &rhs);
72
73 unsigned int width(bool = false) const override { return sizeof(dods_byte); }
74
75 int64_t width_ll(bool = false) const override { return sizeof(dods_byte); }
76
77 BaseType *ptr_duplicate() override;
78
79 // DAP2
80 bool serialize(ConstraintEvaluator &eval, DDS &dds, Marshaller &m, bool ce_eval) override;
81 bool deserialize(UnMarshaller &um, DDS *, bool) override;
82
83 // DAP4
84 void compute_checksum(Crc32 &checksum) override;
85 void serialize(D4StreamMarshaller &m, DMR &dmr, bool filter = false) override;
86 void deserialize(D4StreamUnMarshaller &um, DMR &dmr) override;
87
88 unsigned int val2buf(void *val, bool reuse = false) override;
89 unsigned int buf2val(void **val) override;
90
91 virtual bool set_value(const dods_byte value);
92 virtual dods_byte value() const;
93
94 void print_val(FILE *out, string space = "", bool print_decl_p = true) override;
95 void print_val(ostream &out, string space = "", bool print_decl_p = true) override;
96
97 bool ops(BaseType *b, int op) override;
98 bool d4_ops(BaseType *b, int op) override;
99 std::vector<BaseType *> *transform_to_dap2(AttrTable *parent_attr_table) override;
100
101 void dump(ostream &strm) const override;
102};
103
104} // namespace libdap
105
106#endif // _byte_h
Definition crc.h:43
Contains the attributes for a dataset.
Definition AttrTable.h:150
The basic data type for the DODS DAP types.
Definition BaseType.h:118
BaseType(const string &n, const Type &t, bool is_dap4=false)
The BaseType constructor.
Definition BaseType.cc:124
Holds a single byte.
Definition Byte.h:59
void print_val(FILE *out, string space="", bool print_decl_p=true) override
Prints the value of the variable.
Definition Byte.cc:214
bool d4_ops(BaseType *b, int op) override
Definition Byte.cc:257
Byte & operator=(const Byte &rhs)
Definition Byte.cc:104
dods_byte d_buf
Definition Byte.h:61
BaseType * ptr_duplicate() override
Definition Byte.cc:102
Byte(const string &n)
The Byte constructor.
Definition Byte.cc:86
void compute_checksum(Crc32 &checksum) override
include the data for this variable in the checksum DAP4 includes a checksum with every data response....
Definition Byte.cc:148
bool deserialize(UnMarshaller &um, DDS *, bool) override
Deserialize the char on stdin and put the result in _BUF.
Definition Byte.cc:142
virtual ~Byte()
Definition Byte.h:67
void dump(ostream &strm) const override
dumps information about this object
Definition Byte.cc:336
bool ops(BaseType *b, int op) override
Evaluate relational operators.
Definition Byte.cc:228
virtual dods_byte value() const
Definition Byte.cc:212
unsigned int width(bool=false) const override
How many bytes does this variable use Return the number of bytes of storage this variable uses....
Definition Byte.h:73
unsigned int val2buf(void *val, bool reuse=false) override
Definition Byte.cc:172
virtual bool set_value(const dods_byte value)
Definition Byte.cc:203
int64_t width_ll(bool=false) const override
Definition Byte.h:75
std::vector< BaseType * > * transform_to_dap2(AttrTable *parent_attr_table) override
DAP4 to DAP2 transform.
Definition Byte.cc:302
unsigned int buf2val(void **val) override
Reads the class data.
Definition Byte.cc:185
bool serialize(ConstraintEvaluator &eval, DDS &dds, Marshaller &m, bool ce_eval) override
Definition Byte.cc:122
Evaluate a constraint expression.
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.
abstract base class used to marshal/serialize dap data objects
Definition Marshaller.h:50
abstract base class used to unmarshall/deserialize dap data objects
top level DAP object to house generic methods
Definition AISConnect.cc:30