rstudio/src/cpp/core/Error.cpp at master · andschar/rstudio · GitHub

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* Error.cpp

* Unless you have received this program directly from RStudio pursuant

* to the terms of a commercial license agreement with RStudio, then

* this program is licensed to you under the terms of version 3 of the

* GNU Affero General Public License. This program is distributed WITHOUT

* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,

* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the

* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.

#include <ostream>

#include <sstream>

#include <core/Error.hpp>

#include <core/FilePath.hpp>

#include <core/SafeConvert.hpp>

#include <boost/lexical_cast.hpp>

#ifdef _WIN32

#include <boost/system/windows_error.hpp>

#endif

namespace rstudio {

namespace core {

struct Error::Impl

{

boost::system::error_code ec ;

ErrorProperties properties ;

Error cause ;

ErrorLocation location ;

};

Error::Error()

: pImpl_()

{

}

Error::Error(const boost::system::error_code& ec,

const ErrorLocation& location)

: pImpl_(new Impl())

{

pImpl_->ec = ec ;

pImpl_->location = location ;

}

Error::Error(const boost::system::error_code& ec,

const Error& cause,

const ErrorLocation& location)

: pImpl_(new Impl())

{

pImpl_->ec = ec ;

pImpl_->cause = cause ;

pImpl_->location = location ;

}

Error::~Error()

{

}

void Error::copyOnWrite()

{

if ( (pImpl_.get() != NULL) && !pImpl_.unique())

{

Impl* pOldImpl = pImpl_.get() ;

pImpl_ = boost::shared_ptr<Impl>(new Impl(*pOldImpl)) ;

}

const boost::system::error_code& Error::code() const

{

return impl().ec;

}

std::string Error::summary() const

{

std::ostringstream ostr;

ostr << code().category().name() << " error "

<< code().value() << " (" << code().message() << ")" ;

return ostr.str();

}

const Error& Error::cause() const

{

return impl().cause ;

}

const ErrorLocation& Error::location() const

{

return impl().location ;

}

void Error::addProperty(const std::string& name, const std::string& value)

{

copyOnWrite() ;

impl().properties.push_back(std::make_pair(name, value)) ;

}

void Error::addProperty(const std::string& name, const FilePath& value)

{

addProperty(name, value.absolutePath());

}

void Error::addProperty(const std::string& name, int value)

{

addProperty(name, safe_convert::numberToString(value));

}

#define kErrorExpected "expected"

#define kErrorExpectedValue "yes"

void Error::setExpected()

{

addProperty(kErrorExpected, kErrorExpectedValue);

}

bool Error::expected() const

{

return getProperty(kErrorExpected) == kErrorExpectedValue;

}

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

Error::properties() const

{

return impl().properties ;

}

std::string Error::getProperty(const std::string& name) const

{

for (ErrorProperties::const_iterator it = properties().begin();

it != properties().end(); ++it)

{

if (it->first == name)

return it->second;

}

return std::string();

}

bool Error::isError() const

{

if ( pImpl_.get() != NULL )

return pImpl_->ec.value() != 0 ;

else

return false ;

}

Error::Impl& Error::impl() const

{

if (pImpl_.get() == NULL)

pImpl_.reset(new Impl()) ;

return *pImpl_ ;

}

Error systemError(int value, const ErrorLocation& location)

{

using namespace boost::system ;

return Error(error_code(value, get_system_category()), location);

}

Error systemError(int value,

const Error& cause,

const ErrorLocation& location)

{

using namespace boost::system ;

return Error(error_code(value, get_system_category()), cause, location);

}

Error systemError(int value,

const std::string& description,

const ErrorLocation& location)

{

Error error = systemError(value, location);

error.addProperty("description", description);

return error;

}

Error fileExistsError(const ErrorLocation& location)

{

#ifdef _WIN32

return systemError(boost::system::windows_error::file_exists, location);

#else

return systemError(boost::system::errc::file_exists, location);

#endif

}

Error fileNotFoundError(const ErrorLocation& location)

{

#ifdef _WIN32

return systemError(boost::system::windows_error::file_not_found, location);

#else

return systemError(boost::system::errc::no_such_file_or_directory, location);

#endif

}

Error fileNotFoundError(const std::string& path,

const ErrorLocation& location)

{

Error error = fileNotFoundError(location);

error.addProperty("path", path);

return error;

}

Error fileNotFoundError(const FilePath& filePath,

const ErrorLocation& location)

{

Error error = fileNotFoundError(location);

error.addProperty("path", filePath);

return error;

}

bool isPathNotFoundError(const Error& error)

{

#ifdef _WIN32

return error.code() == boost::system::windows_error::path_not_found;

#else

return error.code() == boost::system::errc::no_such_file_or_directory;

#endif

}

Error pathNotFoundError(const ErrorLocation& location)

{

#ifdef _WIN32

return systemError(boost::system::windows_error::path_not_found, location);

#else

return systemError(boost::system::errc::no_such_file_or_directory, location);

#endif

}

Error pathNotFoundError(const std::string& path, const ErrorLocation& location)

{

Error error = pathNotFoundError(location);

error.addProperty("path", path);

return error;

}

struct ErrorLocation::Impl

{

Impl() : line(0)

{

}

Impl(const char* function, const char* file, long line)

: function(function), file(file), line(line)

{

}

std::string function ;

std::string file ;

long line ;

};

ErrorLocation::ErrorLocation()

: pImpl_(new Impl())

{

}

ErrorLocation::ErrorLocation(const char* function, const char* file, long line)

: pImpl_(new Impl(function, file, line))

{

}

ErrorLocation::~ErrorLocation()

{

}

bool ErrorLocation::hasLocation() const

{

return line() > 0 ;

}

const std::string& ErrorLocation::function() const

{

return pImpl_->function ;

}

const std::string& ErrorLocation::file() const

{

return pImpl_->file ;

}

long ErrorLocation::line() const

{

return pImpl_->line ;

}

std::string ErrorLocation::asString() const

{

std::ostringstream ostr ;

ostr << *this;

return ostr.str();

}

bool ErrorLocation::operator==(const ErrorLocation& location) const

{

return function() == location.function() &&

file() == location.file() &&

line() == location.line();

}

std::ostream& operator<<(std::ostream& os, const ErrorLocation& location)

{

os << location.function() << " "

<< location.file() << ":"

<< location.line() ;

return os;

}

} // namespace core

} // namespace rstudio

rstudio/src/cpp/core/Error.cpp at master · andschar/rstudio · GitHub

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