/// Search for metadata associated with the provided recordId and userId.
/// \param node - Top-level node to use for metadata search.
/// \param recordId - Record ID to match.
/// \param userId - User ID to match.
MetadataNode LasWriter::findVlrMetadata(MetadataNode node,
uint16_t recordId, const std::string& userId)
{
std::string sRecordId = std::to_string(recordId);
// Find a node whose name starts with vlr and that has child nodes
// with the name and recordId we're looking for.
auto pred = [sRecordId,userId](MetadataNode n)
{
auto recPred = [sRecordId](MetadataNode n)
{
return n.name() == "record_id" &&
n.value() == sRecordId;
};
auto userPred = [userId](MetadataNode n)
{
return n.name() == "user_id" &&
n.value() == userId;
};
return (boost::algorithm::istarts_with(n.name(), "vlr") &&
!n.findChild(recPred).empty() &&
!n.findChild(userPred).empty());
};
return node.find(pred);
}
TEST(Stats, metadata)
{
BOX3D bounds(1.0, 2.0, 3.0, 101.0, 102.0, 103.0);
Options ops;
ops.add("bounds", bounds);
ops.add("count", 1000);
ops.add("mode", "constant");
StageFactory f;
std::unique_ptr<Stage> reader(f.createStage("readers.faux"));
EXPECT_TRUE(reader.get());
reader->setOptions(ops);
Options filterOps;
filterOps.add("dimensions", " , X, Z ");
StatsFilter filter;
filter.setInput(*reader);
filter.setOptions(filterOps);
PointTable table;
filter.prepare(table);
filter.execute(table);
MetadataNode m = filter.getMetadata();
std::vector<MetadataNode> children = m.children("statistic");
auto findNode = [](MetadataNode m,
const std::string name, const std::string val)
{
auto findNameVal = [name, val](MetadataNode m)
{ return (m.name() == name && m.value() == val); };
return m.find(findNameVal);
};
for (auto mi = children.begin(); mi != children.end(); ++mi)
{
if (findNode(*mi, "name", "X").valid())
{
EXPECT_DOUBLE_EQ(mi->findChild("average").value<double>(), 1.0);
EXPECT_DOUBLE_EQ(mi->findChild("minimum").value<double>(), 1.0);
EXPECT_DOUBLE_EQ(mi->findChild("maximum").value<double>(), 1.0);
EXPECT_DOUBLE_EQ(mi->findChild("count").value<double>(), 1000.0);
}
if (findNode(*mi, "name", "Z").valid())
{
EXPECT_DOUBLE_EQ(mi->findChild("average").value<double>(), 3.0);
EXPECT_DOUBLE_EQ(mi->findChild("minimum").value<double>(), 3.0);
EXPECT_DOUBLE_EQ(mi->findChild("maximum").value<double>(), 3.0);
EXPECT_DOUBLE_EQ(mi->findChild("count").value<double>(), 1000.0);
}
}
}