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Accept features with null properties in geobuf

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This commit is contained in:
Erica Fischer
2022-11-21 13:45:04 -08:00
parent 2419350e09
commit 9f831bfca5
1 changed files with 94 additions and 88 deletions
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flatgeobuf.cpp
+94 -88
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@@ -154,98 +154,104 @@ void readFeature(const FlatGeobuf::Feature *feature, long long feature_sequence_
std::vector<std::string> full_keys;
std::vector<serial_val> full_values;
// assume tabular schema with columns in header
size_t p_pos = 0;
while (p_pos < feature->properties()->size()) {
uint16_t col_idx;
memcpy(&col_idx, feature->properties()->data() + p_pos, sizeof(col_idx));
if (feature == NULL) {
fprintf(stderr, "Can't happen: null geobuf feature\n");
exit(EXIT_IMPOSSIBLE);
}
if (feature->properties() != NULL) {
// assume tabular schema with columns in header
size_t p_pos = 0;
while (p_pos < feature->properties()->size()) {
uint16_t col_idx;
memcpy(&col_idx, feature->properties()->data() + p_pos, sizeof(col_idx));
// https://github.com/protomaps/tippecanoe/issues/7
// check if column name is tippecanoe:minzoom, tippecanoe:maxzoom or tippecanoe:layer
// https://github.com/protomaps/tippecanoe/issues/7
// check if column name is tippecanoe:minzoom, tippecanoe:maxzoom or tippecanoe:layer
FlatGeobuf::ColumnType col_type = h_column_types[col_idx];
FlatGeobuf::ColumnType col_type = h_column_types[col_idx];
serial_val sv;
if (col_type == FlatGeobuf::ColumnType_Byte) {
sv.type = mvt_sint;
int8_t byte_val;
memcpy(&byte_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(byte_val));
sv.s = std::to_string(byte_val);
p_pos += sizeof(uint16_t) + sizeof(byte_val);
} else if (col_type == FlatGeobuf::ColumnType_UByte) {
sv.type = mvt_uint;
uint8_t ubyte_val;
memcpy(&ubyte_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(ubyte_val));
sv.s = std::to_string(ubyte_val);
p_pos += sizeof(uint16_t) + sizeof(ubyte_val);
} else if (col_type == FlatGeobuf::ColumnType_Bool) {
sv.type = mvt_bool;
uint8_t bool_val;
memcpy(&bool_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(bool_val));
sv.s = std::to_string(bool_val);
p_pos += sizeof(uint16_t) + sizeof(bool_val);
} else if (col_type == FlatGeobuf::ColumnType_Short) {
sv.type = mvt_sint;
int16_t short_val;
memcpy(&short_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(short_val));
sv.s = std::to_string(short_val);
p_pos += sizeof(uint16_t) + sizeof(short_val);
} else if (col_type == FlatGeobuf::ColumnType_UShort) {
sv.type = mvt_uint;
uint16_t ushort_val;
memcpy(&ushort_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(ushort_val));
sv.s = std::to_string(ushort_val);
p_pos += sizeof(uint16_t) + sizeof(ushort_val);
} else if (col_type == FlatGeobuf::ColumnType_Int) {
sv.type = mvt_sint;
int32_t int_val;
memcpy(&int_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(int_val));
sv.s = std::to_string(int_val);
p_pos += sizeof(uint16_t) + sizeof(int_val);
} else if (col_type == FlatGeobuf::ColumnType_UInt) {
sv.type = mvt_uint;
uint32_t uint_val;
memcpy(&uint_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(uint_val));
sv.s = std::to_string(uint_val);
p_pos += sizeof(uint16_t) + sizeof(uint_val);
} else if (col_type == FlatGeobuf::ColumnType_Long) {
sv.type = mvt_sint;
int64_t long_val;
memcpy(&long_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(long_val));
sv.s = std::to_string(long_val);
p_pos += sizeof(uint16_t) + sizeof(long_val);
} else if (col_type == FlatGeobuf::ColumnType_ULong) {
sv.type = mvt_uint;
int64_t ulong_val;
memcpy(&ulong_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(ulong_val));
sv.s = std::to_string(ulong_val);
p_pos += sizeof(uint16_t) + sizeof(ulong_val);
} else if (col_type == FlatGeobuf::ColumnType_Float) {
sv.type = mvt_float;
float float_val;
memcpy(&float_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(float_val));
sv.s = milo::dtoa_milo(float_val);
p_pos += sizeof(uint16_t) + sizeof(float_val);
} else if (col_type == FlatGeobuf::ColumnType_Double) {
sv.type = mvt_double;
double double_val;
memcpy(&double_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(double_val));
sv.s = milo::dtoa_milo(double_val);
p_pos += sizeof(uint16_t) + sizeof(double_val);
} else if (col_type == FlatGeobuf::ColumnType_String || col_type == FlatGeobuf::ColumnType_Json || col_type == FlatGeobuf::ColumnType_DateTime) {
sv.type = mvt_string;
uint32_t val_len;
memcpy(&val_len, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(val_len));
std::string s{reinterpret_cast<const char *>(feature->properties()->data() + p_pos + sizeof(uint16_t) + sizeof(uint32_t)), val_len};
sv.s = s;
p_pos += sizeof(uint16_t) + sizeof(uint32_t) + val_len;
} else {
// Binary is not representable in MVT
fprintf(stderr, "flatgeobuf has unsupported column type %u\n", (unsigned int) col_type);
exit(EXIT_IMPOSSIBLE);
serial_val sv;
if (col_type == FlatGeobuf::ColumnType_Byte) {
sv.type = mvt_sint;
int8_t byte_val;
memcpy(&byte_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(byte_val));
sv.s = std::to_string(byte_val);
p_pos += sizeof(uint16_t) + sizeof(byte_val);
} else if (col_type == FlatGeobuf::ColumnType_UByte) {
sv.type = mvt_uint;
uint8_t ubyte_val;
memcpy(&ubyte_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(ubyte_val));
sv.s = std::to_string(ubyte_val);
p_pos += sizeof(uint16_t) + sizeof(ubyte_val);
} else if (col_type == FlatGeobuf::ColumnType_Bool) {
sv.type = mvt_bool;
uint8_t bool_val;
memcpy(&bool_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(bool_val));
sv.s = std::to_string(bool_val);
p_pos += sizeof(uint16_t) + sizeof(bool_val);
} else if (col_type == FlatGeobuf::ColumnType_Short) {
sv.type = mvt_sint;
int16_t short_val;
memcpy(&short_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(short_val));
sv.s = std::to_string(short_val);
p_pos += sizeof(uint16_t) + sizeof(short_val);
} else if (col_type == FlatGeobuf::ColumnType_UShort) {
sv.type = mvt_uint;
uint16_t ushort_val;
memcpy(&ushort_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(ushort_val));
sv.s = std::to_string(ushort_val);
p_pos += sizeof(uint16_t) + sizeof(ushort_val);
} else if (col_type == FlatGeobuf::ColumnType_Int) {
sv.type = mvt_sint;
int32_t int_val;
memcpy(&int_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(int_val));
sv.s = std::to_string(int_val);
p_pos += sizeof(uint16_t) + sizeof(int_val);
} else if (col_type == FlatGeobuf::ColumnType_UInt) {
sv.type = mvt_uint;
uint32_t uint_val;
memcpy(&uint_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(uint_val));
sv.s = std::to_string(uint_val);
p_pos += sizeof(uint16_t) + sizeof(uint_val);
} else if (col_type == FlatGeobuf::ColumnType_Long) {
sv.type = mvt_sint;
int64_t long_val;
memcpy(&long_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(long_val));
sv.s = std::to_string(long_val);
p_pos += sizeof(uint16_t) + sizeof(long_val);
} else if (col_type == FlatGeobuf::ColumnType_ULong) {
sv.type = mvt_uint;
int64_t ulong_val;
memcpy(&ulong_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(ulong_val));
sv.s = std::to_string(ulong_val);
p_pos += sizeof(uint16_t) + sizeof(ulong_val);
} else if (col_type == FlatGeobuf::ColumnType_Float) {
sv.type = mvt_float;
float float_val;
memcpy(&float_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(float_val));
sv.s = milo::dtoa_milo(float_val);
p_pos += sizeof(uint16_t) + sizeof(float_val);
} else if (col_type == FlatGeobuf::ColumnType_Double) {
sv.type = mvt_double;
double double_val;
memcpy(&double_val, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(double_val));
sv.s = milo::dtoa_milo(double_val);
p_pos += sizeof(uint16_t) + sizeof(double_val);
} else if (col_type == FlatGeobuf::ColumnType_String || col_type == FlatGeobuf::ColumnType_Json || col_type == FlatGeobuf::ColumnType_DateTime) {
sv.type = mvt_string;
uint32_t val_len;
memcpy(&val_len, feature->properties()->data() + p_pos + sizeof(uint16_t), sizeof(val_len));
std::string s{reinterpret_cast<const char *>(feature->properties()->data() + p_pos + sizeof(uint16_t) + sizeof(uint32_t)), val_len};
sv.s = s;
p_pos += sizeof(uint16_t) + sizeof(uint32_t) + val_len;
} else {
// Binary is not representable in MVT
fprintf(stderr, "flatgeobuf has unsupported column type %u\n", (unsigned int) col_type);
exit(EXIT_IMPOSSIBLE);
}
full_keys.push_back(h_column_names[col_idx]);
full_values.push_back(sv);
}
full_keys.push_back(h_column_names[col_idx]);
full_values.push_back(sv);
}
sf.full_keys = full_keys;