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MongoExpressionFilter.cpp
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MongoExpressionFilter.cpp
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/******************************************************************************
* Copyright (c) 2018, Connor Manning (connor@hobu.co)
*
* 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 "MongoExpressionFilter.hpp"
#include "private/mongoexpression/Expression.hpp"
namespace pdal
{
static const StaticPluginInfo s_info
{
"filters.mongo",
"Pass only points that pass a logic filter.",
"http://pdal.io/stages/filters.mongo.html"
};
CREATE_STATIC_STAGE(MongoExpressionFilter, s_info);
std::string MongoExpressionFilter::getName() const
{
return s_info.name;
}
MongoExpressionFilter::MongoExpressionFilter()
{}
MongoExpressionFilter::~MongoExpressionFilter()
{}
void MongoExpressionFilter::addArgs(ProgramArgs& args)
{
args.add("expression", "Logical query expression", m_json).setPositional();
}
void MongoExpressionFilter::prepared(PointTableRef table)
{
log()->get(LogLevel::Debug) << "Building expression from: " << m_json <<
std::endl;
m_expression = makeUnique<Expression>(*table.layout(), m_json);
log()->get(LogLevel::Debug) << "Built expression: " << *m_expression <<
std::endl;
}
PointViewSet MongoExpressionFilter::run(PointViewPtr inView)
{
PointViewSet views;
PointViewPtr view(inView->makeNew());
for (PointId i(0); i < inView->size(); ++i)
{
PointRef pr(inView->point(i));
if (processOne(pr))
{
view->appendPoint(*inView, i);
}
}
views.insert(view);
return views;
}
bool MongoExpressionFilter::processOne(PointRef& pr)
{
return m_expression->check(pr);
}
} // namespace pdal