BufferPtr IteratorBase::fetchPointBuffer(Statement statement, sdo_pc* pc)
{
boost::int32_t id = statement->GetInteger(&pc->pc_id);
BufferMap::const_iterator i = m_buffers.find(id);
if (i != m_buffers.end())
{
getReader().log()->get(logDEBUG2) << "IteratorBase::fetchPointBuffer: found existing PointBuffer with id " << id << std::endl;
return i->second;
}
else
{
boost::uint32_t block_capacity(0);
Schema schema = m_reader.fetchSchema(statement, pc, block_capacity, getReader().getName());
m_orientation = schema.getOrientation();
getReader().log()->get(logDEBUG2) << "Incoming schema orientation is " << m_orientation << std::endl;
BufferPtr output = BufferPtr(new PointBuffer(schema, block_capacity));
std::pair<int, BufferPtr> p(id, output);
m_buffers.insert(p);
getReader().log()->get(logDEBUG2) << "IteratorBase::fetchPointBuffer: creating new PointBuffer with id " << id << std::endl;
return p.second;
}
}
DimensionMapPtr IteratorBase::fetchDimensionMap(Statement statement, sdo_pc* pc, PointBuffer const& oracle_buffer, PointBuffer const& user_buffer)
{
boost::int32_t id = statement->GetInteger(&pc->pc_id);
DimensionMaps::const_iterator i = m_dimensions.find(id);
if (i != m_dimensions.end())
{
getReader().log()->get(logDEBUG2) << "IteratorBase::fetchDimensionMap: found existing DimensionMap with id " << id << std::endl;
return i->second;
}
else
{
DimensionMapPtr output = DimensionMapPtr(m_oracle_buffer->getSchema().mapDimensions( user_buffer.getSchema(),
false /*ignore namespaces*/));
getReader().log()->get(logDEBUG2) << "DimensionMapPtr->size(): " << output->size() << std::endl;
if (!output->size()) throw pdal_error("fetchDimensionMap map was unable to map any dimensions!");
for (schema::DimensionMap::const_iterator i = output->begin(); i != output->end(); ++i)
{
getReader().log()->get(logDEBUG2) << "mapping " << i->first->getFQName() << " to " << i->second->getFQName() << std::endl;
}
std::pair<int, DimensionMapPtr> p(id, output);
m_dimensions.insert(p);
getReader().log()->get(logDEBUG2) << "IteratorBase::fetchDimensionMap: creating new DimensionMap with id " << id << std::endl;
return p.second;
}
}
schema::XMLSchema fetchSchema(Statement stmt, BlockPtr block)
{
// Fetch the XML that defines the schema for this point cloud
std::ostringstream schemaQuery;
OCILobLocator* metadata = NULL;
schemaQuery <<
"DECLARE" << std::endl << "PC_TABLE VARCHAR2(32) := '" <<
stmt->GetString(block->pc->base_table) << "';" << std::endl <<
"PC_ID NUMBER := " << stmt->GetInteger(&(block->pc->pc_id)) <<
";" << std::endl <<
"PC_COLUMN VARCHAR2(32) := '" <<
stmt->GetString(block->pc->base_column) << "';" << std::endl <<
"BEGIN" << std::endl <<
std::endl <<
"EXECUTE IMMEDIATE" << std::endl <<
" 'SELECT T.'||PC_COLUMN||'.PC_OTHER_ATTRS.getClobVal()"
"FROM '||pc_table||' T WHERE T.ID='||"
"PC_ID INTO :metadata;" << std::endl <<
"END;" << std::endl;
Statement getSchemaStmt(
block->m_connection->CreateStatement(schemaQuery.str().c_str()));
getSchemaStmt->BindName(":metadata", &metadata);
getSchemaStmt->Execute();
char* pc_schema = getSchemaStmt->ReadCLob(metadata);
std::string pc_schema_xml;
if (pc_schema)
{
pc_schema_xml = pc_schema;
CPLFree(pc_schema);
}
std::ostringstream fname;
int cloudId = stmt->GetInteger(&(block->pc->pc_id)) ;
// fname << "schema-" << cloudId <<".xml";
// std::ostream* out = FileUtils::createFile(fname.str());
// out->write(pc_schema_xml.c_str(), pc_schema_xml.size());
// FileUtils::closeFile(out);
return schema::Reader(pc_schema_xml).schema();
}
pdal::SpatialReference OciReader::fetchSpatialReference(Statement stmt,
BlockPtr block) const
{
// Fetch the WKT for the SRID to set the coordinate system of this stage
int srid = stmt->GetInteger(&(block->pc->pc_geometry.sdo_srid));
if (srid)
{
std::ostringstream oss;
oss << "EPSG:" << srid;
return pdal::SpatialReference(oss.str());
}
return pdal::SpatialReference();
}
pdal::Schema Reader::fetchSchema(Statement statement, sdo_pc* pc, boost::uint32_t& capacity, std::string ns_override) const
{
log()->get(logDEBUG) << "Fetching schema from SDO_PC object" << std::endl;
// Fetch the XML that defines the schema for this point cloud
std::ostringstream select_schema;
OCILobLocator* metadata = NULL;
select_schema
<< "DECLARE" << std::endl
<< "PC_TABLE VARCHAR2(32) := '" << statement->GetString(pc->base_table) << "';" << std::endl
<< "PC_ID NUMBER := " << statement->GetInteger(&(pc->pc_id)) << ";" << std::endl
<< "PC_COLUMN VARCHAR2(32) := '" << statement->GetString(pc->base_column) << "';" << std::endl
<< "BEGIN" << std::endl
<< std::endl
<< "EXECUTE IMMEDIATE" << std::endl
<< " 'SELECT T.'||PC_COLUMN||'.PC_OTHER_ATTRS.getClobVal(), T.'||PC_COLUMN||'.PTN_PARAMS FROM '||pc_table||' T WHERE T.ID='||PC_ID INTO :metadata, :capacity;"
<< std::endl
<< "END;"
<< std::endl;
Statement get_schema(m_connection->CreateStatement(select_schema.str().c_str()));
get_schema->BindName(":metadata", &metadata);
int ptn_params_length = 1024;
char* ptn_params = (char*) malloc(sizeof(char*) * ptn_params_length);
ptn_params[ptn_params_length-1] = '\0'; //added trailing null to fix ORA-01480
get_schema->BindName(":capacity", ptn_params, ptn_params_length);
get_schema->Execute();
char* pc_schema = get_schema->ReadCLob(metadata);
std::string write_schema_file = getOptions().getValueOrDefault<std::string>("xml_schema_dump", std::string(""));
if (write_schema_file.size() > 0)
{
std::ostream* out = FileUtils::createFile(write_schema_file);
out->write(pc_schema, strlen(pc_schema));
FileUtils::closeFile(out);
}
// Fetch the block capacity from the point cloud object so we
// can use it later.
// PTN_PARAMS is like:
// 'blk_capacity=1000,work_tablespace=my_work_ts'
int block_capacity = 0;
boost::char_separator<char> sep_space(" ");
boost::char_separator<char> sep_equal("=");
std::string s_cap(ptn_params);
tokenizer parameters(s_cap, sep_space);
for (tokenizer::iterator t = parameters.begin(); t != parameters.end(); ++t)
{
tokenizer parameter((*t), sep_equal);
for (tokenizer::iterator c = parameter.begin(); c != parameter.end(); ++c)
{
if (boost::iequals(c->c_str(), "blk_capacity"))
{
tokenizer::iterator d = ++c;
block_capacity = atoi(d->c_str());
}
}
}
if (block_capacity < 1)
{
std::ostringstream oss;
oss << "Invalid block capacity for point cloud object in Oracle: " << block_capacity;
throw pdal_error(oss.str());
}
capacity = block_capacity;
std::string pc_schema_xml(pc_schema);
if (pc_schema)
CPLFree(pc_schema);
if (ptn_params)
free(ptn_params);
Schema schema = Schema::from_xml(pc_schema_xml);
schema::index_by_index const& dims = schema.getDimensions().get<schema::index>();
for (schema::index_by_index::const_iterator iter = dims.begin(); iter != dims.end(); ++iter)
{
// For dimensions that do not have namespaces, we'll set the namespace
// to the namespace of the current stage
if (iter->getNamespace().size() == 0)
{
log()->get(logDEBUG4) << "setting namespace for dimension " << iter->getName() << " to " << getName() << std::endl;
Dimension d(*iter);
if (iter->getUUID().is_nil())
{
d.createUUID();
}
if (ns_override.size() > 0)
{
d.setNamespace(ns_override);
}
else
{
d.setNamespace(getName());
}
schema.setDimension(d);
}
}
return schema;
}
