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StageFactory.cpp
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StageFactory.cpp
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/******************************************************************************
* Copyright (c) 2011, Michael P. Gerlek (mpg@flaxen.com)
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Hobu, Inc. or Flaxen Geo Consulting nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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
* COPYRIGHT OWNER OR CONTRIBUTORS 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.
****************************************************************************/
#include <pdal/StageFactory.hpp>
#include <pdal/PluginManager.hpp>
#include <pdal/util/FileUtils.hpp>
#include <sstream>
#include <string>
namespace pdal
{
/**
Find the default reader for a file.
\param filename Filename for which to infer a reader.
\return Name of the reader driver associated with the file.
*/
std::string StageFactory::inferReaderDriver(const std::string& filename)
{
static const std::string ghPrefix("greyhound://");
static const std::string i3sPrefix("i3s://");
std::string ext;
// filename may actually be a greyhound uri + pipelineId
if (Utils::iequals(filename.substr(0, ghPrefix.size()), ghPrefix))
ext = ".greyhound"; // Make it look like an extension.
else if(Utils::iequals(filename.substr(0, i3sPrefix.size()), i3sPrefix))
ext = ".i3s";
else
ext = FileUtils::extension(filename);
// Strip off '.' and make lowercase.
if (ext.length())
ext = Utils::tolower(ext.substr(1));
PluginManager<Stage>& mgr = PluginManager<Stage>::get();
return mgr.extensions().defaultReader(ext);
}
/**
Find the default writer for a file.
\param filename Filename for which to infer a writer.
\return Name of the writer driver associated with the file.
*/
std::string StageFactory::inferWriterDriver(const std::string& filename)
{
std::string ext;
static const std::string ghPrefix("greyhound://");
if (filename == "STDOUT")
ext = ".txt";
else if (Utils::iequals(filename.substr(0, ghPrefix.size()), ghPrefix))
ext = ".greyhound"; // Make it look like an extension.
else
ext = Utils::tolower(FileUtils::extension(filename));
// Strip off '.' and make lowercase.
if (ext.length())
ext = Utils::tolower(ext.substr(1));
PluginManager<Stage>& mgr = PluginManager<Stage>::get();
return mgr.extensions().defaultWriter(ext);
}
StageFactory::StageFactory(bool ignored)
{
(void)ignored;
}
Stage *StageFactory::createStage(std::string const& stage_name)
{
static_assert(0 < sizeof(Stage), "");
Stage *s = PluginManager<Stage>::createObject(stage_name);
if (s)
{
std::lock_guard<std::mutex> lock(m_mutex);
m_ownedStages.push_back(std::unique_ptr<Stage>(s));
}
return s;
}
void StageFactory::destroyStage(Stage *s)
{
std::lock_guard<std::mutex> lock(m_mutex);
for (auto it = m_ownedStages.begin(); it != m_ownedStages.end(); ++it)
{
if (s == it->get())
{
m_ownedStages.erase(it);
break;
}
}
}
} // namespace pdal