libdballe 9.6
core/file.h
1#ifndef DBA_CORE_FILE_H
2#define DBA_CORE_FILE_H
3
4#include <dballe/file.h>
5#include <dballe/core/defs.h>
6#include <memory>
7#include <string>
8#include <cstdio>
9#include <functional>
10
11namespace dballe {
12namespace core {
13
15class File : public dballe::File
16{
17protected:
19 std::string m_name;
21 FILE* fd;
25 int idx;
26
27public:
28 File(const std::string& name, FILE* fd, bool close_on_exit=true);
29 virtual ~File();
30
31 std::string pathname() const override { return m_name; }
32 void close() override;
33 bool foreach(std::function<bool(const BinaryMessage&)> dest) override;
34
40 static std::string resolve_test_data_file(const std::string& name);
41
47 static std::unique_ptr<dballe::File> open_test_data_file(Encoding type, const std::string& name);
48};
49
51{
52public:
53 BufrFile(const std::string& name, FILE* fd, bool close_on_exit=true)
54 : File(name, fd, close_on_exit) {}
55
56 Encoding encoding() const override { return Encoding::BUFR; }
57 BinaryMessage read() override;
58 void write(const std::string& msg) override;
59};
60
62{
63public:
64 CrexFile(const std::string& name, FILE* fd, bool close_on_exit=true)
65 : File(name, fd, close_on_exit) {}
66
67 Encoding encoding() const override { return Encoding::CREX; }
68 BinaryMessage read() override;
69 void write(const std::string& msg) override;
70};
71
73{
74public:
75 JsonFile(const std::string& name, FILE* fd, bool close_on_exit=true)
76 : File(name, fd, close_on_exit) {}
77
78 Encoding encoding() const override { return Encoding::JSON; }
79 BinaryMessage read() override;
80 void write(const std::string& msg) override;
81};
82
83}
84}
85#endif
Binary message.
Definition: file.h:131
File object for doing I/O on binary message streams.
Definition: file.h:18
Definition: core/file.h:51
BinaryMessage read() override
Read a message from the file.
Encoding encoding() const override
Get the file encoding.
Definition: core/file.h:56
void write(const std::string &msg) override
Append the binary message to the file.
Definition: core/file.h:62
BinaryMessage read() override
Read a message from the file.
void write(const std::string &msg) override
Append the binary message to the file.
Encoding encoding() const override
Get the file encoding.
Definition: core/file.h:67
Base for dballe::File implementations.
Definition: core/file.h:16
static std::unique_ptr< dballe::File > open_test_data_file(Encoding type, const std::string &name)
Open a test data file.
FILE * fd
FILE structure used to read or write to the file.
Definition: core/file.h:21
std::string pathname() const override
Get the file pathname.
Definition: core/file.h:31
std::string m_name
Name of the file.
Definition: core/file.h:19
int idx
Index of the last message read from the file or written to the file.
Definition: core/file.h:25
static std::string resolve_test_data_file(const std::string &name)
Resolve the location of a test data file.
bool close_on_exit
True if fd should be closed on destruction.
Definition: core/file.h:23
void close() override
Close the underlying file.
Definition: core/file.h:73
void write(const std::string &msg) override
Append the binary message to the file.
BinaryMessage read() override
Read a message from the file.
Encoding encoding() const override
Get the file encoding.
Definition: core/file.h:78
Common definitions.