void tb_shutdown(void)
{
if (termw == -1) {
fputs("tb_shutdown() should not be called twice.", stderr);
abort();
}
bytebuffer_puts(&output_buffer, funcs[T_SHOW_CURSOR]);
bytebuffer_puts(&output_buffer, funcs[T_SGR0]);
bytebuffer_puts(&output_buffer, funcs[T_CLEAR_SCREEN]);
bytebuffer_puts(&output_buffer, funcs[T_EXIT_CA]);
bytebuffer_puts(&output_buffer, funcs[T_EXIT_KEYPAD]);
bytebuffer_puts(&output_buffer, funcs[T_EXIT_MOUSE]);
bytebuffer_flush(&output_buffer, inout);
tcsetattr(inout, TCSAFLUSH, &orig_tios);
shutdown_term();
close(inout);
close(winch_fds[0]);
close(winch_fds[1]);
cellbuf_free(&back_buffer);
cellbuf_free(&front_buffer);
bytebuffer_free(&output_buffer);
bytebuffer_free(&input_buffer);
termw = termh = -1;
}
static void
release_row_data(row_data_t *row_data) {
if (row_data != NULL) {
cell_data_t *cell = row_data->first_cell;
while (cell) {
bytebuffer_free(cell->value);
free(cell->hb_cell);
cell_data_t *cur_cell = cell;
cell = cell->next_cell;
free(cur_cell);
}
bytebuffer_free(row_data->key);
free(row_data);
}
}
void tb_shutdown(void)
{
bytebuffer_puts(&output_buffer, funcs[T_SHOW_CURSOR]);
bytebuffer_puts(&output_buffer, funcs[T_SGR0]);
bytebuffer_puts(&output_buffer, funcs[T_CLEAR_SCREEN]);
bytebuffer_puts(&output_buffer, funcs[T_EXIT_CA]);
bytebuffer_puts(&output_buffer, funcs[T_EXIT_KEYPAD]);
bytebuffer_flush(&output_buffer, inout);
tcsetattr(inout, TCSAFLUSH, &orig_tios);
shutdown_term();
close(inout);
close(winch_fds[0]);
close(winch_fds[1]);
cellbuf_free(&back_buffer);
cellbuf_free(&front_buffer);
bytebuffer_free(&output_buffer);
bytebuffer_free(&input_buffer);
}
static void
get_callback(int32_t err, hb_client_t client,
hb_get_t get, hb_result_t result, void *extra) {
bytebuffer rowKey = (bytebuffer)extra;
if (err == 0) {
const char *table_name;
size_t table_name_len;
hb_result_get_table(result, &table_name, &table_name_len);
HBASE_LOG_INFO("Received get callback for table=\'%.*s\'.",
table_name_len, table_name);
printRow(result);
const hb_cell_t *mycell;
bytebuffer qualifier = bytebuffer_strcpy("column-a");
HBASE_LOG_INFO("Looking up cell for family=\'%s\', qualifier=\'%.*s\'.",
FAMILIES[0], qualifier->length, qualifier->buffer);
if (hb_result_get_cell(result, FAMILIES[0], 1, qualifier->buffer,
qualifier->length, &mycell) == 0) {
HBASE_LOG_INFO("Cell found, value=\'%.*s\', timestamp=%lld.",
mycell->value_len, mycell->value, mycell->ts);
} else {
HBASE_LOG_ERROR("Cell not found.");
}
bytebuffer_free(qualifier);
hb_result_destroy(result);
} else {
HBASE_LOG_ERROR("Get failed with error code: %d.", err);
}
bytebuffer_free(rowKey);
hb_get_destroy(get);
pthread_mutex_lock(&get_mutex);
get_done = true;
pthread_cond_signal(&get_cv);
pthread_mutex_unlock(&get_mutex);
}
/**
* Program entry point
*/
int
main(int argc, char **argv) {
int32_t retCode = 0;
FILE* logFile = NULL;
hb_connection_t connection = NULL;
hb_client_t client = NULL;
const char *rowkey_prefix = "row";
const char *value_prefix = "test value";
bytebuffer column_a = bytebuffer_strcpy("column-a");
bytebuffer column_b = bytebuffer_strcpy("column-b");
const char *table_name = (argc > 1) ? argv[1] : "TempTable";
const char *zk_ensemble = (argc > 2) ? argv[2] : "localhost:2181";
const char *zk_root_znode = (argc > 3) ? argv[3] : NULL;
const size_t table_name_len = strlen(table_name);
const int num_puts = 10;
hb_put_t put = NULL;
srand(time(NULL));
hb_log_set_level(HBASE_LOG_LEVEL_DEBUG); // defaults to INFO
const char *logFilePath = getenv("HBASE_LOG_FILE");
if (logFilePath != NULL) {
FILE* logFile = fopen(logFilePath, "a");
if (!logFile) {
retCode = errno;
fprintf(stderr, "Unable to open log file \"%s\"", logFilePath);
perror(NULL);
goto cleanup;
}
hb_log_set_stream(logFile); // defaults to stderr
}
if ((retCode = hb_connection_create(zk_ensemble,
zk_root_znode,
&connection)) != 0) {
HBASE_LOG_ERROR("Could not create HBase connection : errorCode = %d.", retCode);
goto cleanup;
}
if ((retCode = ensureTable(connection, table_name)) != 0) {
HBASE_LOG_ERROR("Failed to ensure table %s : errorCode = %d", table_name, retCode);
goto cleanup;
}
HBASE_LOG_INFO("Connecting to HBase cluster using Zookeeper ensemble '%s'.",
zk_ensemble);
if ((retCode = hb_client_create(connection, &client)) != 0) {
HBASE_LOG_ERROR("Could not connect to HBase cluster : errorCode = %d.", retCode);
goto cleanup;
}
// let's send a batch of 10 puts with single cell asynchronously
outstanding_puts_count += num_puts;
for (int i = 0; i < num_puts; ++i) {
row_data_t *row_data = (row_data_t *) calloc(1, sizeof(row_data_t));
row_data->key = bytebuffer_printf("%s%02d", rowkey_prefix, i);
hb_put_create(row_data->key->buffer, row_data->key->length, &put);
hb_mutation_set_table(put, table_name, table_name_len);
hb_mutation_set_durability(put, DURABILITY_SKIP_WAL);
hb_mutation_set_bufferable(put, false);
cell_data_t *cell_data = new_cell_data();
row_data->first_cell = cell_data;
cell_data->value = bytebuffer_printf("%s%02d", value_prefix, i);
hb_cell_t *cell = (hb_cell_t*) calloc(1, sizeof(hb_cell_t));
cell_data->hb_cell = cell;
cell->row = row_data->key->buffer;
cell->row_len = row_data->key->length;
cell->family = FAMILIES[rand() % 2];
cell->family_len = 1;
cell->qualifier = column_a->buffer;
cell->qualifier_len = column_a->length;
cell->value = cell_data->value->buffer;
cell->value_len = cell_data->value->length;
cell->ts = HBASE_LATEST_TIMESTAMP;
hb_put_add_cell(put, cell);
HBASE_LOG_INFO("Sending row with row key : '%.*s'.",
cell->row_len, cell->row);
hb_mutation_send(client, put, put_callback, row_data);
}
hb_client_flush(client, client_flush_callback, NULL);
wait_for_flush();
wait_for_puts(); // outside the loop, wait for 10 puts to complete
// now, let's put two cells in a single row
outstanding_puts_count++;
{
row_data_t *row_data = (row_data_t *) calloc(1, sizeof(row_data_t));
row_data->key = bytebuffer_printf("row_with_two_cells");
hb_put_create(row_data->key->buffer, row_data->key->length, &put);
hb_mutation_set_table(put, table_name, table_name_len);
hb_mutation_set_durability(put, DURABILITY_SYNC_WAL);
// first cell
cell_data_t *cell1_data = new_cell_data();
row_data->first_cell = cell1_data;
cell1_data->value = bytebuffer_printf("cell1_value_v1");
hb_cell_t *cell1 = (hb_cell_t*) calloc(1, sizeof(hb_cell_t));
cell1_data->hb_cell = cell1;
cell1->row = row_data->key->buffer;
cell1->row_len = row_data->key->length;
cell1->family = FAMILIES[0];
cell1->family_len = 1;
cell1->qualifier = column_a->buffer;
cell1->qualifier_len = column_a->length;
cell1->value = cell1_data->value->buffer;
cell1->value_len = cell1_data->value->length;
cell1->ts = 1391111111111L;
hb_put_add_cell(put, cell1);
// second cell
cell_data_t *cell2_data = new_cell_data();
cell1_data->next_cell = cell2_data;
cell2_data->value = bytebuffer_printf("cell2_value_v1");
hb_cell_t *cell2 = (hb_cell_t*) calloc(1, sizeof(hb_cell_t));
cell2_data->hb_cell = cell2;
cell2->row = row_data->key->buffer;
cell2->row_len = row_data->key->length;
cell2->family = FAMILIES[1];
cell2->family_len = 1;
cell2->qualifier = column_b->buffer;
cell2->qualifier_len = column_b->length;
cell2->value = cell2_data->value->buffer;
cell2->value_len = cell2_data->value->length;
cell2->ts = 1391111111111L;
hb_put_add_cell(put, cell2);
HBASE_LOG_INFO("Sending row with row key : '%.*s'.",
cell1->row_len, cell1->row);
hb_mutation_send(client, put, put_callback, row_data);
wait_for_puts();
}
// now, let's put second version in one column
outstanding_puts_count++;
{
row_data_t *row_data = (row_data_t *) calloc(1, sizeof(row_data_t));
row_data->key = bytebuffer_printf("row_with_two_cells");
hb_put_create(row_data->key->buffer, row_data->key->length, &put);
hb_mutation_set_table(put, table_name, table_name_len);
hb_mutation_set_durability(put, DURABILITY_SYNC_WAL);
// first cell
cell_data_t *cell1_data = new_cell_data();
row_data->first_cell = cell1_data;
cell1_data->value = bytebuffer_printf("cell1_value_v2");
hb_cell_t *cell1 = (hb_cell_t*) calloc(1, sizeof(hb_cell_t));
cell1_data->hb_cell = cell1;
cell1->row = row_data->key->buffer;
cell1->row_len = row_data->key->length;
cell1->family = FAMILIES[0];
cell1->family_len = 1;
cell1->qualifier = column_a->buffer;
cell1->qualifier_len = column_a->length;
cell1->value = cell1_data->value->buffer;
cell1->value_len = cell1_data->value->length;
cell1->ts = 1392222222222L;
hb_put_add_cell(put, cell1);
HBASE_LOG_INFO("Sending row with row key : '%.*s'.",
cell1->row_len, cell1->row);
hb_mutation_send(client, put, put_callback, row_data);
wait_for_puts();
}
// now, scan the entire table
{
hb_scanner_t scanner = NULL;
hb_scanner_create(client, &scanner);
hb_scanner_set_table(scanner, table_name, table_name_len);
hb_scanner_set_num_max_rows(scanner, 3); // maximum 3 rows at a time
hb_scanner_set_num_versions(scanner, 10); // up to 10 versions of the cell
hb_scanner_next(scanner, scan_callback, NULL); // dispatch the call
wait_for_scan();
}
// fetch a row with row-key="row_with_two_cells"
{
bytebuffer rowKey = bytebuffer_strcpy("row_with_two_cells");
hb_get_t get = NULL;
hb_get_create(rowKey->buffer, rowKey->length, &get);
hb_get_add_column(get, FAMILIES[0], 1, NULL, 0);
hb_get_add_column(get, FAMILIES[1], 1, NULL, 0);
hb_get_set_table(get, table_name, table_name_len);
hb_get_set_num_versions(get, 10); // up to ten versions of each column
get_done = false;
hb_get_send(client, get, get_callback, rowKey);
wait_for_get();
}
// delete a specific version of a column
{
bytebuffer rowKey = bytebuffer_strcpy("row_with_two_cells");
hb_delete_t del = NULL;
hb_delete_create(rowKey->buffer, rowKey->length, &del);
hb_delete_add_column(del, FAMILIES[0], 1,
column_a->buffer, column_a->length, 1391111111112L);
hb_mutation_set_table(del, table_name, table_name_len);
delete_done = false;
hb_mutation_send(client, del, delete_callback, rowKey);
wait_for_delete();
}
// fetch a row with row-key="row_with_two_cells"
{
bytebuffer rowKey = bytebuffer_strcpy("row_with_two_cells");
hb_get_t get = NULL;
hb_get_create(rowKey->buffer, rowKey->length, &get);
hb_get_add_column(get, FAMILIES[0], 1, NULL, 0);
hb_get_add_column(get, FAMILIES[1], 1, NULL, 0);
hb_get_set_table(get, table_name, table_name_len);
hb_get_set_num_versions(get, 10); // up to ten versions of each column
get_done = false;
hb_get_send(client, get, get_callback, rowKey);
wait_for_get();
}
cleanup:
if (client) {
HBASE_LOG_INFO("Disconnecting client.");
hb_client_destroy(client, client_disconnection_callback, NULL);
wait_client_disconnection();
}
if (connection) {
hb_connection_destroy(connection);
}
if (column_a) {
bytebuffer_free(column_a); // do not need 'column' anymore
}
if (column_b) {
bytebuffer_free(column_b);
}
if (logFile) {
fclose(logFile);
}
pthread_cond_destroy(&puts_cv);
pthread_mutex_destroy(&puts_mutex);
pthread_cond_destroy(&get_cv);
pthread_mutex_destroy(&get_mutex);
pthread_cond_destroy(&del_cv);
pthread_mutex_destroy(&del_mutex);
pthread_cond_destroy(&client_destroyed_cv);
pthread_mutex_destroy(&client_destroyed_mutex);
return retCode;
}
