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/**
* Orthanc - A Lightweight, RESTful DICOM Store
* Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
* Belgium
*
* This program is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* In addition, as a special exception, the copyright holders of this
* program give permission to link the code of its release with the
* OpenSSL project's "OpenSSL" library (or with modified versions of it
* that use the same license as the "OpenSSL" library), and distribute
* the linked executables. You must obey the GNU General Public License
* in all respects for all of the code used other than "OpenSSL". If you
* modify file(s) with this exception, you may extend this exception to
* your version of the file(s), but you are not obligated to do so. If
* you do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source files
* in the program, then also delete it here.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
#include "../PrecompiledHeaders.h"
#include "HierarchicalZipWriter.h"
#include "../Toolbox.h"
#include "../OrthancException.h"
#include <boost/lexical_cast.hpp>
namespace Orthanc
{
std::string HierarchicalZipWriter::Index::KeepAlphanumeric(const std::string& source)
{
std::string result;
bool lastSpace = false;
result.reserve(source.size());
for (size_t i = 0; i < source.size(); i++)
{
char c = source[i];
if (c == '^')
c = ' ';
if (c < 128 &&
c >= 0)
{
if (isspace(c))
{
if (!lastSpace)
{
lastSpace = true;
result.push_back(' ');
}
}
else if (isalnum(c) ||
c == '.' ||
c == '_')
{
result.push_back(c);
lastSpace = false;
}
}
}
return Toolbox::StripSpaces(result);
}
std::string HierarchicalZipWriter::Index::GetCurrentDirectoryPath() const
{
std::string result;
Stack::const_iterator it = stack_.begin();
++it; // Skip the root node (to avoid absolute paths)
while (it != stack_.end())
{
result += (*it)->name_ + "/";
++it;
}
return result;
}
std::string HierarchicalZipWriter::Index::EnsureUniqueFilename(const char* filename)
{
std::string standardized = KeepAlphanumeric(filename);
Directory& d = *stack_.back();
Directory::Content::iterator it = d.content_.find(standardized);
if (it == d.content_.end())
{
d.content_[standardized] = 1;
return standardized;
}
else
{
it->second++;
return standardized + "-" + boost::lexical_cast<std::string>(it->second);
}
}
HierarchicalZipWriter::Index::Index()
{
stack_.push_back(new Directory);
}
HierarchicalZipWriter::Index::~Index()
{
for (Stack::iterator it = stack_.begin(); it != stack_.end(); ++it)
{
delete *it;
}
}
std::string HierarchicalZipWriter::Index::OpenFile(const char* name)
{
return GetCurrentDirectoryPath() + EnsureUniqueFilename(name);
}
void HierarchicalZipWriter::Index::OpenDirectory(const char* name)
{
std::string d = EnsureUniqueFilename(name);
// Push the new directory onto the stack
stack_.push_back(new Directory);
stack_.back()->name_ = d;
}
void HierarchicalZipWriter::Index::CloseDirectory()
{
if (IsRoot())
{
// Cannot close the root node
throw OrthancException(ErrorCode_BadSequenceOfCalls);
}
delete stack_.back();
stack_.pop_back();
}
HierarchicalZipWriter::HierarchicalZipWriter(const char* path)
{
writer_.SetOutputPath(path);
writer_.Open();
}
HierarchicalZipWriter::~HierarchicalZipWriter()
{
writer_.Close();
}
void HierarchicalZipWriter::OpenFile(const char* name)
{
std::string p = indexer_.OpenFile(name);
writer_.OpenFile(p.c_str());
}
void HierarchicalZipWriter::OpenDirectory(const char* name)
{
indexer_.OpenDirectory(name);
}
void HierarchicalZipWriter::CloseDirectory()
{
indexer_.CloseDirectory();
}
}
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