DataRetriever.cpp
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#include "DataRetriever.h"
#include <fstream>
#include <cstdlib>
#include "../Common/Toolbox.h"
using namespace std;
using namespace TREPS::Common;
namespace TREPS
{
namespace DataRetriever
{
DataRetrieverClass::DataRetrieverClass(void): app(NULL), errorMsg("")
{
this->app = ApplicationClass::getInstance();
}
bool DataRetrieverClass::copyLocalFile(const char *file_path, const char *dest_dir, const char *dest_name, bool checkSize)
{
this->errorMsg = "";
if (checkSize)
{
//test the file size
int fileSize = getFileSize(file_path);
if (fileSize < 0)
{
this->errorMsg = "Cannot get file size";
LOG4CXX_ERROR(this->app->getLog()->getPtr(), this->errorMsg);
return false;
}
if (fileSize > this->app->getConf()->getMaxSourceFileSize())
{
this->errorMsg = "File too large (limitation to ";
this->errorMsg += intToStr(this->app->getConf()->getMaxSourceFileSize());
this->errorMsg += " octets)";
LOG4CXX_ERROR(this->app->getLog()->getPtr(),this->errorMsg);
return false;
}
}
LOG4CXX_INFO(this->app->getLog()->getPtr(),"Try to copy local file " << file_path << " to dir " << dest_dir);
//copy the file
ifstream source(file_path, ios::binary);
if (!source.good())
{
this->errorMsg = "Error to load source file";
LOG4CXX_ERROR(this->app->getLog()->getPtr(), this->errorMsg);
return false;
}
string destPath = getPathCorrection(dest_dir);
destPath += dest_name;
ofstream dest(destPath.c_str(), ios::binary);
dest << source.rdbuf();
source.close();
dest.close();
return true;
}
bool DataRetrieverClass::copyWebFile(const char *file_url, const char *dest_dir, const char *dest_name, bool checkSize)
{
this->errorMsg = "";
//use the call of wget system command to copy a web file
string cmd = "wget ";
string proxyUser = this->app->getConf()->getProxyUsername();
string proxyPwd = this->app->getConf()->getProxyPassword();
if (proxyUser.compare("") != 0)
{
cmd += "--proxy-user=";
cmd += proxyUser;
cmd += " ";
}
if (proxyPwd.compare("") != 0)
{
cmd += "--proxy-password=";
cmd += proxyPwd;
cmd += " ";
}
if (checkSize)
{
//test file size
string cmd_size = cmd;
cmd_size += "--spider \"";
cmd_size += file_url;
//for english server
string cmd_size_english = cmd_size;
cmd_size_english += "\" 2>&1 | grep Length | awk '{print $2}'";
//for french server
string cmd_size_french = cmd_size;
cmd_size_french += "\" 2>&1 | grep Longueur | awk '{print $2}'";
string output;
//run command for french server
int status = executeSystemCommand(cmd_size_french.c_str(), output);
if (status != 0)
{
this->errorMsg = "Cannot retrieve web file";
LOG4CXX_ERROR(this->app->getLog()->getPtr(),this->errorMsg);
return false;
}
if (output.compare("") == 0)
{
//if no output, try to run english command
status = executeSystemCommand(cmd_size_english.c_str(), output);
if (status != 0)
{
this->errorMsg = "Cannot retrieve web file";
LOG4CXX_ERROR(this->app->getLog()->getPtr(),this->errorMsg);
return false;
}
if (output.compare("") == 0)
{
this->errorMsg = "Cannot retrieve web file";
LOG4CXX_ERROR(this->app->getLog()->getPtr(),this->errorMsg);
return false;
}
}
long int fileSize = atol(output.c_str());
if (fileSize <= 0)
{
this->errorMsg = "Internal error to get the file size.";
LOG4CXX_ERROR(this->app->getLog()->getPtr(),this->errorMsg);
return false;
}
if (fileSize > this->app->getConf()->getMaxSourceFileSize())
{
this->errorMsg = "File too large (limitation to ";
this->errorMsg += intToStr(this->app->getConf()->getMaxSourceFileSize());
this->errorMsg += " octets)";
LOG4CXX_ERROR(this->app->getLog()->getPtr(),this->errorMsg);
return false;
}
}
//copy the file
string destPath = getPathCorrection(dest_dir);
destPath += dest_name;
cmd += "-O ";
cmd += destPath;
cmd += " \"";
cmd += file_url;
cmd += "\"";
string output;
int status = executeSystemCommand(cmd.c_str(),output);
if (status != 0)
{
this->errorMsg = "Cannot copy web file ";
this->errorMsg += file_url;
this->errorMsg += " - System command error : ";
this->errorMsg += intToStr(status);
LOG4CXX_ERROR(this->app->getLog()->getPtr(),this->errorMsg);
return false;
}
return true;
}
string DataRetrieverClass::getErrorMsg(void)
{
return this->errorMsg;
}
}
}