Exemplo n.º 1
0
/**
* 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;
}
Exemplo n.º 2
0
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);
    
}
Exemplo n.º 3
0
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);
}