/**
* Recursive node serialization:
* - length of GhtHash
* - GhtHash (no null terminator)
* - number of GhtAttributes
* - GhtAttribute[]
* - number of child GhtNodes
* - GhtNode[]
*/
GhtErr
ght_node_write(const GhtNode *node, GhtWriter *writer)
{
uint8_t attrcount = 0;
uint8_t childcount = 0;
GhtAttribute *attr = node->attributes;
/* Write the hash */
GHT_TRY(ght_hash_write(node->hash, writer));
/* Write the attributes */
GHT_TRY(ght_node_count_attributes(node, &attrcount));
ght_write(writer, &attrcount, 1);
while( attr )
{
ght_attribute_write(attr, writer);
attr = attr->next;
}
/* Write the children */
if ( node->children )
childcount = node->children->num_nodes;
ght_write(writer, &childcount, 1);
if ( childcount )
{
int i;
for ( i = 0; i < node->children->num_nodes; i++ )
{
ght_node_write(node->children->nodes[i], writer);
}
}
return GHT_OK;
}
static void
test_ght_node_file_serialization(void)
{
GhtCoordinate coord;
GhtNode *node, *root, *noderead;
GhtErr err;
GhtWriter *writer;
GhtReader *reader;
stringbuffer_t *sb1;
GhtAttribute *attr;
const char* testfile = "test.ght";
if ( fexists(testfile) )
remove(testfile);
coord.x = -127.4123;
coord.y = 49.23141;
err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node);
CU_ASSERT_EQUAL(err, GHT_OK);
root = node;
coord.x = -127.4122;
coord.y = 49.23142;
err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node);
err = ght_attribute_new_from_double(schema->dims[2], 88.88, &attr);
err = ght_node_add_attribute(node, attr);
err = ght_node_insert_node(root, node, GHT_DUPES_YES);
CU_ASSERT_EQUAL(err, GHT_OK);
coord.x = -127.4122001;
coord.y = 49.23142001;
err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node);
err = ght_attribute_new_from_double(schema->dims[2], 15.23, &attr);
err = ght_node_add_attribute(node, attr);
err = ght_node_insert_node(root, node, GHT_DUPES_YES);
CU_ASSERT_EQUAL(err, GHT_OK);
coord.x = -127.4122002;
coord.y = 49.23142002;
err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node);
err = ght_attribute_new_from_double(schema->dims[2], 19.23, &attr);
err = ght_node_add_attribute(node, attr);
err = ght_node_insert_node(root, node, GHT_DUPES_YES);
CU_ASSERT_EQUAL(err, GHT_OK);
// sb1 = stringbuffer_create();
// err = ght_node_to_string(root, sb1, 0);
// printf("\n%s\n", stringbuffer_getstring(sb1));
// stringbuffer_destroy(sb1);
err = ght_writer_new_file(testfile, &writer);
CU_ASSERT_EQUAL(err, GHT_OK);
err = ght_node_write(root, writer);
CU_ASSERT_EQUAL(err, GHT_OK);
ght_writer_free(writer);
err = ght_reader_new_file(testfile, schema, &reader);
CU_ASSERT_EQUAL(err, GHT_OK);
err = ght_node_read(reader, &noderead);
CU_ASSERT_EQUAL(err, GHT_OK);
ght_reader_free(reader);
remove(testfile);
ght_node_free(root);
ght_node_free(noderead);
}
static void
test_ght_node_serialization(void)
{
GhtCoordinate coord;
int x, y;
GhtNode *node1, *node2, *node3;
GhtErr err;
GhtWriter *writer;
GhtReader *reader;
const uint8_t *bytes;
size_t bytes_size;
stringbuffer_t *sb1, *sb2;
GhtAttribute *attr;
char *hex;
/* ght_node_new_from_coordinate(const GhtCoordinate *coord, unsigned int resolution, GhtNode **node); */
coord.x = -127.4123;
coord.y = 49.23141;
err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node1);
CU_ASSERT_STRING_EQUAL(node1->hash, "c0v2hdm1wpzpy4vtv4");
CU_ASSERT_EQUAL(err, GHT_OK);
err = ght_writer_new_mem(&writer);
err = ght_node_write(node1, writer);
bytes = bytebuffer_getbytes(writer->bytebuffer);
bytes_size = bytebuffer_getsize(writer->bytebuffer);
err = ght_reader_new_mem(bytes, bytes_size, schema, &reader);
err = ght_node_read(reader, &node2);
CU_ASSERT_STRING_EQUAL(node1->hash, node2->hash);
ght_node_free(node2);
/* add a child */
coord.x = -127.4125;
coord.y = 49.23144;
err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node3);
err = ght_attribute_new_from_double(schema->dims[3], 88.88, &attr);
err = ght_node_add_attribute(node3, attr);
err = ght_node_insert_node(node1, node3, GHT_DUPES_YES);
CU_ASSERT_EQUAL(err, GHT_OK);
/* add another (dupe) child */
err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node3);
err = ght_node_insert_node(node1, node3, GHT_DUPES_YES);
/* add another (dupe) child with an attribute */
err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node3);
err = ght_attribute_new_from_double(schema->dims[2], 99.99, &attr);
err = ght_node_add_attribute(node3, attr);
err = ght_node_insert_node(node1, node3, GHT_DUPES_YES);
sb1 = stringbuffer_create();
err = ght_node_to_string(node1, sb1, 0);
// printf("ORIGINAL\n%s\n", stringbuffer_getstring(sb1));
err = ght_writer_new_mem(&writer);
err = ght_node_write(node1, writer);
bytes = bytebuffer_getbytes(writer->bytebuffer);
bytes_size = bytebuffer_getsize(writer->bytebuffer);
err = hexbytes_from_bytes(bytes, bytes_size, &hex);
CU_ASSERT_STRING_EQUAL("086330763268646D3100020A77707A7079347674763400000A6374643463637839796201035800020000000001020F27000000", hex);
// printf("\n\n%s\n", hex);
err = ght_reader_new_mem(bytes, bytes_size, schema, &reader);
err = ght_node_read(reader, &node2);
sb2 = stringbuffer_create();
err = ght_node_to_string(node2, sb2, 0);
// printf("COPY\n%s\n", stringbuffer_getstring(sb2));
CU_ASSERT_STRING_EQUAL(stringbuffer_getstring(sb1), stringbuffer_getstring(sb2));
stringbuffer_destroy(sb2);
stringbuffer_destroy(sb1);
ght_node_free(node1);
ght_node_free(node2);
ght_writer_free(writer);
ght_reader_free(reader);
}