sella::file::GZCSVPathWriter Class Reference

A GZIP compressed CSV path writer. More...

#include <GZCSVPathWriter.h>

Public Member Functions
	STANDARD_TYPEDEF (sella::file::GZCSVPathWriter)
	GZCSVPathWriter (const std::string &path, char delimiter=DefaultDelimiter, char seperator=DefaultSeperator) THROWS(IOException)
void	write (const std::vector< std::vector< std::string >> &data) THROWS(IOException)

Static Public Attributes
static const char *	FileSuffix = ".csv.gz"
	The file suffix for matching files in the directory for reading.
static const char	DefaultDelimiter = 0x1e
	The default delimiter used between the fields of a record; the ASCII record seperator character.
static const char	DefaultSeperator = 0x1d
	The default seperator used between the records of a file; the ASCII group seperator character.

Detailed Description

A GZIP compressed CSV path writer.

Definition at line 31 of file GZCSVPathWriter.h.

Constructor & Destructor Documentation

GZCSVPathWriter::GZCSVPathWriter	(	const std::string &	path,
		char	delimiter = DefaultDelimiter,
		char	seperator = DefaultSeperator
	)

The base constructor for a path writer.

Parameters

[in]	path	The full path to write files to.
[in]	delimiter	The field delimiter character for files.
[in]	seperator	The record seperator character for files.

Exceptions

IOException

if the path cannot be opened for writing.

Definition at line 30 of file GZCSVPathWriter.cpp.

                                                                                                           :
        path(path),

        delimiter(delimiter),
        seperator(seperator),

        sequence(::time(NULL) << 16)
{
        /* Ensure the supplied path is valid. */
        DIR * directory = ::opendir(this->path.c_str());

        if (directory == NULL) {
                THROW(IOException, "failed to open directory '%s' for writing", this->path.c_str());
        }
        ::closedir(directory);

        /* Remove any trailing slash characters from the path. */
        while (*(this->path.rbegin()) == '/') {
                this->path.erase(this->path.length() - 1, 1);
        }
}

Member Function Documentation

void GZCSVPathWriter::write

(

const std::vector< std::vector< std::string >> &

data

)

Create a database file and write all supplied records to it.

Parameters

[in]

data

The vector which contains all records to write to a file.

Exceptions

IOException

if unabled to write any record for any reason.

Definition at line 59 of file GZCSVPathWriter.cpp.

References FileSuffix.

                                                                                            {
        char file[2][4096];

        snprintf(file[0], sizeof(file[0]), "%s/%08lx.%s-incomplete", this->path.c_str(), this->sequence, GZCSVPathWriter::FileSuffix);
        snprintf(file[1], sizeof(file[1]), "%s/%08lx.%s", this->path.c_str(), this->sequence++, GZCSVPathWriter::FileSuffix);

        GZCSVFileWriter writer(file[0], this->delimiter, this->seperator);

        for (auto iter = data.begin(); iter != data.end(); ++iter) {
                writer.write(*iter);
        }
        writer.close(file[1]);
}

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The documentation for this class was generated from the following files:

• /home/sella/digitalgenesis/libutil++/releases/rpm/BUILD/libutil++-1.9.3/src/sella/file/GZCSVPathWriter.h
• /home/sella/digitalgenesis/libutil++/releases/rpm/BUILD/libutil++-1.9.3/src/sella/file/GZCSVPathWriter.cpp