/******************************************************************************
*
* Copyright (c) 2014 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* FileWriterT.h
*
*****************************************************************************/
#pragma once
#include <oz++/CommonObject.h>
#include <oz++/StringT.h>
#include <oz++/Folder.h>
namespace OZ {
template <class T> class FileWriterT :public CommonObject {
private:
FILE* fp;
char* filename;
public:
/**
* Constructor
*
* fileName is a name to save a text string.
* If this parameter NULL, simply display a string on the console(stdout).
*/
FileWriterT(const char* name)
:fp(NULL),
filename(NULL)
{
assert(name);
filename = __strdup(name);
}
public:
int create()
{
int rc = OK;
File file(filename);
if (file.exists() ) {
//If already exists, try to delete it.
file.unlink();
//Don't care success or failure of this deleteion operation.
} else {
//If not existent, check a folder and try to create it
Folder folder(filename);
if (folder.exists() == false) {
if (folder.create() == false) {
printf("Failed to create a folderfor filePath:\"%s\"\n",
filename);
return ERROR;
}
}
}
fp = fopen(filename, "ab");
if (fp == NULL) {
throw IException("Failed to open a file:%s", filename, error() );
}
else {
//unsigned char bom[2] = {0xff, 0xfe};
//writeBytes(bom, 2);
}
}
public:
~FileWriterT()
{
close();
if (filename) {
delete [] filename;
filename = NULL;
}
}
public:
void close()
{
if (fp) {
fclose(fp);
fp = NULL;
}
}
/*
public:
int writeBytes(unsigned char* bytes, size_t len)
{
int rc = 0;
if (bytes && len>0) {
if (fp) {
rc = fwrite(bytes, sizeof(unsigned char), len, fp);
} else {
fwrite(bytes, sizeof(unsigned char), len, stdout);
}
}
return rc;
}
*/
public:
// string parameter is a null-terminated T type string
//
int writeString(const T* string)
{
int rc = 0;
if (string) {
size_t slen = __strlen(string);
if (fp) {
rc = fwrite(string, sizeof(T), slen, fp);
} else {
rc = fwrite(string, sizeof(T), slen, stdout);
}
}
return rc;
}
};
}