// ----------------------------------------------------------------------------------
//
// check if key exist in cluster
//
// def exists?(key, options = {})
//
// params:
// key - AerospikeC::Key object
// options - hash of options:
// policy: AerospikeC::Policy for read
//
// ------
// RETURN:
// 1. true if exist
// 2. false otherwise
//
static VALUE key_exists(int argc, VALUE * argv, VALUE self) {
rb_aero_TIMED(tm);
as_error err;
as_status status;
aerospike * as = rb_aero_CLIENT;
as_record * rec = NULL;
VALUE key;
VALUE options;
rb_scan_args(argc, argv, "11", &key, &options);
if ( NIL_P(options) ) options = rb_hash_new();
as_key * k = rb_aero_KEY;
as_policy_read * policy = get_policy(options);
if ( ( status = aerospike_key_exists(as, &err, policy, k, &rec) ) != AEROSPIKE_OK ) {
as_record_destroy(rec);
if ( status == AEROSPIKE_ERR_RECORD_NOT_FOUND ) {
rb_aero_logger(AS_LOG_LEVEL_DEBUG, &tm, 2, rb_str_new2("[Client][exists?] success - false"), rb_aero_KEY_INFO);
return Qfalse;
}
raise_as_error(err);
}
as_record_destroy(rec);
rb_aero_logger(AS_LOG_LEVEL_DEBUG, &tm, 2, rb_str_new2("[Client][exists?] success - true"), rb_aero_KEY_INFO);
return Qtrue;
}
// ----------------------------------------------------------------------------------
//
// def get_header(key, options = {})
//
// params:
// key - AerospikeC::Key object
// options - hash of options:
// policy: AerospikeC::Policy for read
//
// ------
// RETURN:
// 1. hash representing record header
// 2. nil when AEROSPIKE_ERR_RECORD_NOT_FOUND
//
static VALUE get_header(int argc, VALUE * argv, VALUE self) {
rb_aero_TIMED(tm);
as_error err;
as_status status;
aerospike * as = rb_aero_CLIENT;
as_record * rec = NULL;
VALUE key;
VALUE options;
rb_scan_args(argc, argv, "11", &key, &options);
if ( NIL_P(options) ) options = rb_hash_new();
as_key * k = rb_aero_KEY;
as_policy_read * policy = get_policy(options);
if ( ( status = aerospike_key_exists(as, &err, policy, k, &rec) ) != AEROSPIKE_OK ) {
as_record_destroy(rec);
if ( status == AEROSPIKE_ERR_RECORD_NOT_FOUND ) {
rb_aero_logger(AS_LOG_LEVEL_WARN, &tm, 2, rb_str_new2("[Client][get_header] AEROSPIKE_ERR_RECORD_NOT_FOUND"), rb_aero_KEY_INFO);
return Qnil;
}
raise_as_error(err);
}
VALUE header = rb_hash_new();
rb_hash_aset(header, rb_str_new2("gen"), INT2FIX(rec->gen));
rb_hash_aset(header, rb_funcall(rb_aero_AerospikeC, rb_intern("ttl_name"), 0), INT2FIX(rec->ttl));
as_record_destroy(rec);
rb_aero_logger(AS_LOG_LEVEL_DEBUG, &tm, 2, rb_str_new2("[Client][get_header] success"), rb_aero_KEY_INFO);
return header;
}
/*
*******************************************************************************************************
* Wrapper function to perform an aerospike_key_exists within the C client.
*
* @param as_object_p The C client's aerospike object.
* @param as_key_p The C client's as_key that identifies the record.
* @param error_p The as_error to be populated by the function
* with the encountered error if any.
* @param metadata_p The return metadata for the exists/getMetadata API to be
* populated by this function.
* @param options_p The user's optional policy options to be used if set, else defaults.
*
*******************************************************************************************************
*/
extern as_status aerospike_record_operations_exists(aerospike* as_object_p,
as_key* as_key_p,
as_error *error_p,
zval* metadata_p,
zval* options_p)
{
as_status status = AEROSPIKE_OK;
as_policy_read read_policy;
as_record* record_p = NULL;
if ( (!as_key_p) || (!error_p) ||
(!as_object_p) || (!metadata_p)) {
status = AEROSPIKE_ERR;
goto exit;
}
set_policy(&read_policy, NULL, NULL, NULL, NULL, NULL, options_p, error_p);
if (AEROSPIKE_OK != (status = (error_p->code))) {
DEBUG_PHP_EXT_DEBUG("Unable to set policy");
goto exit;
}
if (AEROSPIKE_OK != (status = aerospike_key_exists(as_object_p, error_p,
&read_policy, as_key_p, &record_p))) {
goto exit;
}
add_assoc_long(metadata_p, "generation", record_p->gen);
add_assoc_long(metadata_p, "ttl", record_p->ttl);
exit:
if (record_p) {
as_record_destroy(record_p);
}
return(status);
}
PyObject * AerospikeClient_Exists_Invoke(
AerospikeClient * self,
PyObject * py_key, PyObject * py_policy)
{
// Python Return Value
PyObject * py_result = NULL;
// Aerospike Client Arguments
as_error err;
as_policy_read policy;
as_policy_read * policy_p = NULL;
as_key key;
as_record * rec = NULL;
// Initialize error
as_error_init(&err);
// Convert python key object to as_key
pyobject_to_key(&err, py_key, &key);
if ( err.code != AEROSPIKE_OK ) {
goto CLEANUP;
}
// Convert python policy object to as_policy_exists
pyobject_to_policy_read(&err, py_policy, &policy, &policy_p);
if ( err.code != AEROSPIKE_OK ) {
goto CLEANUP;
}
// Invoke operation
aerospike_key_exists(self->as, &err, policy_p, &key, &rec);
if ( err.code == AEROSPIKE_OK ) {
PyObject * py_result_key = NULL;
PyObject * py_result_meta = NULL;
key_to_pyobject(&err, &key, &py_result_key);
metadata_to_pyobject(&err, rec, &py_result_meta);
py_result = PyTuple_New(2);
PyTuple_SetItem(py_result, 0, py_result_key);
PyTuple_SetItem(py_result, 1, py_result_meta);
}
else if ( err.code == AEROSPIKE_ERR_RECORD_NOT_FOUND ) {
as_error_reset(&err);
PyObject * py_result_key = NULL;
PyObject * py_result_meta = Py_None;
key_to_pyobject(&err, &key, &py_result_key);
py_result = PyTuple_New(2);
PyTuple_SetItem(py_result, 0, py_result_key);
PyTuple_SetItem(py_result, 1, py_result_meta);
Py_INCREF(py_result_meta);
}
CLEANUP:
as_record_destroy(rec);
if ( err.code != AEROSPIKE_OK ) {
PyObject * py_err = NULL;
error_to_pyobject(&err, &py_err);
PyErr_SetObject(PyExc_Exception, py_err);
return NULL;
}
return py_result;
}
/**
* Creates 100 records and 9 indexes.
*
* Records are structured as:
* {a: String, b: Integer, c: Integer, d: Integer, e: Integer}
*
* The key is "a-b-c-d-e"
*
* The values are:
* a = "abc"
* b = 100
* c = <current index>
* d = c % 10
* e = b + (c + 1) * (d + 1) / 2
*/
bool query_foreach_create()
{
as_error err;
as_error_reset(&err);
int n_recs = 100;
as_status status;
as_index_task task;
// create index on "a"
status = aerospike_index_create(as, &err, &task, NULL, NAMESPACE, SET, "a", "idx_test_a", AS_INDEX_STRING);
index_process_return_code(status, &err, &task);
// create index on "b"
status = aerospike_index_create(as, &err, &task, NULL, NAMESPACE, SET, "b", "idx_test_b", AS_INDEX_NUMERIC);
index_process_return_code(status, &err, &task);
// create index on "c"
status = aerospike_index_create(as, &err, &task, NULL, NAMESPACE, SET, "c", "idx_test_c", AS_INDEX_NUMERIC);
index_process_return_code(status, &err, &task);
// create index on "d"
status = aerospike_index_create(as, &err, &task, NULL, NAMESPACE, SET, "d", "idx_test_d", AS_INDEX_NUMERIC);
index_process_return_code(status, &err, &task);
// create complex index on "x"
status = aerospike_index_create_complex(as, &err, &task, NULL, NAMESPACE, SET, "x", "idx_test_x", AS_INDEX_TYPE_LIST, AS_INDEX_STRING);
index_process_return_code(status, &err, &task);
// create complex index on "y"
status = aerospike_index_create_complex(as, &err, &task, NULL, NAMESPACE, SET, "y", "idx_test_y", AS_INDEX_TYPE_MAPKEYS, AS_INDEX_STRING);
index_process_return_code(status, &err, &task);
// create complex index on "y"
status = aerospike_index_create_complex(as, &err, &task, NULL, NAMESPACE, SET, "y", "idx_test_y1", AS_INDEX_TYPE_MAPVALUES, AS_INDEX_STRING);
index_process_return_code(status, &err, &task);
// create complex index on "z"
status = aerospike_index_create_complex(as, &err, &task, NULL, NAMESPACE, SET, "z", "idx_test_z", AS_INDEX_TYPE_LIST, AS_INDEX_NUMERIC);
index_process_return_code(status, &err, &task);
char* buffer = alloca(n_recs * 1024 + 1);
uint32_t the_ttl = AS_RECORD_NO_EXPIRE_TTL;
// insert records
for ( int i = 0; i < n_recs; i++ ) {
if (i == 10) {
// We change the TTL from never to 100 days
the_ttl = 100 * 24 * 60 * 60;
}
else if (i == 42) {
// NOTE - We pause on the 42nd iteration for a few
// milliseconds and note the time. We can then use the
// as_predexp_rec_last_update_after predicate below to find
// the later records.
as_sleep(5);
g_epochns = cf_clock_getabsolute() * 1000 * 1000;
as_sleep(5);
// Also on the 42nd iteration we change the TTL to
// 10 days for the remaining records.
the_ttl = 10 * 24 * 60 * 60;
}
char * a = "abc";
int b = n_recs;
int c = i;
int d = i % 10;
int e = b + (c + 1) * (d + 1) / 2;
int g = i; // Only set on odd records.
char f[64];
snprintf(f, sizeof(f), "0x%04x", i);
char keystr[64] = { '\0' };
snprintf(keystr, 64, "%s-%d-%d-%d-%d", a, b, c, d, e);
// Make list
as_arraylist list;
as_arraylist_init(&list, 3, 0);
if ( (i%3) == 0) {
as_arraylist_append_str(&list, "x");
as_arraylist_append_str(&list, "x1");
as_arraylist_append_str(&list, "x2");
} else {
as_arraylist_append_str(&list, "not_x1");
as_arraylist_append_str(&list, "not_x2");
as_arraylist_append_str(&list, "not_x3");
}
// Make map
as_hashmap map;
as_hashmap_init(&map, 1);
if ( (i%7) == 0) {
as_stringmap_set_str((as_map *) &map, "ykey", "yvalue");
} else {
as_stringmap_set_str((as_map *) &map, "ykey_not", "yvalue_not");
}
// Make list of integers
as_arraylist list2;
as_arraylist_init(&list2, 5, 0);
as_arraylist_append_int64(&list2, i);
as_arraylist_append_int64(&list2, i+1);
as_arraylist_append_int64(&list2, i+2);
as_arraylist_append_int64(&list2, i+3);
as_arraylist_append_int64(&list2, i+4);
// Make a string of variable size
for (int jj = 0; jj < i * 1024; ++jj) {
buffer[jj] = 'X';
}
buffer[i * 1024] = '\0';
// We only create the g bin for odd records.
bool create_g_bin = i % 2 == 1;
as_record r;
as_record_init(&r, 10 + (create_g_bin ? 1 : 0));
as_record_set_str(&r, "a", a);
as_record_set_int64(&r, "b", b);
as_record_set_int64(&r, "c", c);
as_record_set_int64(&r, "d", d);
as_record_set_int64(&r, "e", e);
as_record_set_str(&r, "f", f);
if (create_g_bin) {
as_record_set_int64(&r, "g", g);
}
as_record_set_list(&r, "x", (as_list *) &list);
as_record_set_map(&r, "y", (as_map *) &map);
as_record_set_list(&r, "z", (as_list *) &list2);
as_record_set_str(&r, "bigstr", buffer);
r.ttl = the_ttl;
as_key key;
as_key_init(&key, NAMESPACE, SET, keystr);
aerospike_key_put(as, &err, NULL, &key, &r);
as_record_destroy(&r);
if (err.code != AEROSPIKE_OK) {
error("aerospike_key_put() failed %d %s", err.code, err.message);
return false;
}
as_record *r1 = NULL;
aerospike_key_exists(as, &err, NULL, &key, &r1);
as_key_destroy(&key);
if (err.code != AEROSPIKE_OK) {
error("aerospike_key_exists() failed %d %s", err.code, err.message);
return false;
}
if (! r1) {
error("key not found %s", keystr);
return false;
}
as_record_destroy(r1);
}
return true;
}
/**
* Creates 100 records and 9 indexes.
*
* Records are structured as:
* {a: String, b: Integer, c: Integer, d: Integer, e: Integer}
*
* The key is "a-b-c-d-e"
*
* The values are:
* a = "abc"
* b = 100
* c = <current index>
* d = c % 10
* e = b + (c + 1) * (d + 1) / 2
*/
bool query_foreach_create()
{
as_error err;
as_error_reset(&err);
int n_recs = 100;
as_status status;
as_index_task task;
// create index on "a"
status = aerospike_index_create(as, &err, &task, NULL, NAMESPACE, SET, "a", "idx_test_a", AS_INDEX_STRING);
if ( status == AEROSPIKE_OK ) {
aerospike_index_create_wait(&err, &task, 0);
}
else {
info("error(%d): %s", err.code, err.message);
}
// create index on "b"
status = aerospike_index_create(as, &err, &task, NULL, NAMESPACE, SET, "b", "idx_test_b", AS_INDEX_NUMERIC);
if ( status == AEROSPIKE_OK ) {
aerospike_index_create_wait(&err, &task, 0);
}
else {
info("error(%d): %s", err.code, err.message);
}
// create index on "c"
status = aerospike_index_create(as, &err, &task, NULL, NAMESPACE, SET, "c", "idx_test_c", AS_INDEX_NUMERIC);
if ( status == AEROSPIKE_OK ) {
aerospike_index_create_wait(&err, &task, 0);
}
else {
info("error(%d): %s", err.code, err.message);
}
// create index on "d"
status = aerospike_index_create(as, &err, &task, NULL, NAMESPACE, SET, "d", "idx_test_d", AS_INDEX_NUMERIC);
if ( status == AEROSPIKE_OK ) {
aerospike_index_create_wait(&err, &task, 0);
}
else {
info("error(%d): %s", err.code, err.message);
}
// create complex index on "x"
status = aerospike_index_create_complex(as, &err, &task, NULL, NAMESPACE, SET, "x", "idx_test_x", AS_INDEX_TYPE_LIST, AS_INDEX_STRING);
if ( status == AEROSPIKE_OK ) {
aerospike_index_create_wait(&err, &task, 0);
}
else {
info("error(%d): %s", err.code, err.message);
}
// create complex index on "y"
status = aerospike_index_create_complex(as, &err, &task, NULL, NAMESPACE, SET, "y", "idx_test_y", AS_INDEX_TYPE_MAPKEYS, AS_INDEX_STRING);
if ( status == AEROSPIKE_OK ) {
aerospike_index_create_wait(&err, &task, 0);
}
else {
info("error(%d): %s", err.code, err.message);
}
// create complex index on "y"
status = aerospike_index_create_complex(as, &err, &task, NULL, NAMESPACE, SET, "y", "idx_test_y1", AS_INDEX_TYPE_MAPVALUES, AS_INDEX_STRING);
if ( status == AEROSPIKE_OK ) {
aerospike_index_create_wait(&err, &task, 0);
}
else {
info("error(%d): %s", err.code, err.message);
}
// create complex index on "z"
status = aerospike_index_create_complex(as, &err, &task, NULL, NAMESPACE, SET, "z", "idx_test_z", AS_INDEX_TYPE_LIST, AS_INDEX_NUMERIC);
if ( status == AEROSPIKE_OK ) {
aerospike_index_create_wait(&err, &task, 0);
}
else {
info("error(%d): %s", err.code, err.message);
}
// insert records
for ( int i = 0; i < n_recs; i++ ) {
char * a = "abc";
int b = n_recs;
int c = i;
int d = i % 10;
int e = b + (c + 1) * (d + 1) / 2;
char keystr[64] = { '\0' };
snprintf(keystr, 64, "%s-%d-%d-%d-%d", a, b, c, d, e);
// Make list
as_arraylist list;
as_arraylist_init(&list, 3, 0);
if ( (i%3) == 0) {
as_arraylist_append_str(&list, "x");
as_arraylist_append_str(&list, "x1");
as_arraylist_append_str(&list, "x2");
} else {
as_arraylist_append_str(&list, "not_x1");
as_arraylist_append_str(&list, "not_x2");
as_arraylist_append_str(&list, "not_x3");
}
// Make map
as_hashmap map;
as_hashmap_init(&map, 1);
if ( (i%7) == 0) {
as_stringmap_set_str((as_map *) &map, "ykey", "yvalue");
} else {
as_stringmap_set_str((as_map *) &map, "ykey_not", "yvalue_not");
}
// Make list of integers
as_arraylist list2;
as_arraylist_init(&list2, 5, 0);
as_arraylist_append_int64(&list2, i);
as_arraylist_append_int64(&list2, i+1);
as_arraylist_append_int64(&list2, i+2);
as_arraylist_append_int64(&list2, i+3);
as_arraylist_append_int64(&list2, i+4);
as_record r;
as_record_init(&r, 9);
as_record_set_str(&r, "a", a);
as_record_set_int64(&r, "b", b);
as_record_set_int64(&r, "c", c);
as_record_set_int64(&r, "d", d);
as_record_set_int64(&r, "e", e);
as_record_set_list(&r, "x", (as_list *) &list);
as_record_set_map(&r, "y", (as_map *) &map);
as_record_set_list(&r, "z", (as_list *) &list2);
as_key key;
as_key_init(&key, NAMESPACE, SET, keystr);
aerospike_key_put(as, &err, NULL, &key, &r);
as_record_destroy(&r);
if (err.code != AEROSPIKE_OK) {
error("aerospike_key_put() failed %d %s", err.code, err.message);
return false;
}
as_record *r1 = NULL;
aerospike_key_exists(as, &err, NULL, &key, &r1);
as_key_destroy(&key);
if (err.code != AEROSPIKE_OK) {
error("aerospike_key_exists() failed %d %s", err.code, err.message);
return false;
}
if (! r1) {
error("key not found %s", keystr);
return false;
}
as_record_destroy(r1);
}
return true;
}
/**
*******************************************************************************************************
* This function applies a registered udf module on a particular record.
*
* @param self AerospikeClient object
* @param py_key The key under which the record is stored.
* @param py_policy The dictionary of policies
*
* Returns a tuple of record having key and meta sequentially.
*******************************************************************************************************
*/
extern PyObject * AerospikeClient_Exists_Invoke(
AerospikeClient * self,
PyObject * py_key, PyObject * py_policy)
{
// Python Return Value
PyObject * py_result = NULL;
// Aerospike Client Arguments
as_error err;
as_policy_read read_policy;
as_policy_read * read_policy_p = NULL;
as_key key;
as_record * rec = NULL;
// Initialisation flags
bool key_initialised = false;
// Initialize error
as_error_init(&err);
if (!self || !self->as) {
as_error_update(&err, AEROSPIKE_ERR_PARAM, "Invalid aerospike object");
goto CLEANUP;
}
if (!self->is_conn_16) {
as_error_update(&err, AEROSPIKE_ERR_CLUSTER, "No connection to aerospike cluster");
goto CLEANUP;
}
// Convert python key object to as_key
pyobject_to_key(&err, py_key, &key);
if ( err.code != AEROSPIKE_OK ) {
goto CLEANUP;
}
// key is initialised successfully
key_initialised = true;
// Convert python policy object to as_policy_exists
pyobject_to_policy_read(&err, py_policy, &read_policy, &read_policy_p,
&self->as->config.policies.read);
if ( err.code != AEROSPIKE_OK ) {
goto CLEANUP;
}
// Invoke operation
Py_BEGIN_ALLOW_THREADS
aerospike_key_exists(self->as, &err, read_policy_p, &key, &rec);
Py_END_ALLOW_THREADS
if ( err.code == AEROSPIKE_OK ) {
PyObject * py_result_key = NULL;
PyObject * py_result_meta = NULL;
key_to_pyobject(&err, &key, &py_result_key);
metadata_to_pyobject(&err, rec, &py_result_meta);
py_result = PyTuple_New(2);
PyTuple_SetItem(py_result, 0, py_result_key);
PyTuple_SetItem(py_result, 1, py_result_meta);
}
else {
as_error_update(&err, err.code, NULL);
}
CLEANUP:
if (key_initialised == true){
// Destroy the key if it is initialised successfully.
as_key_destroy(&key);
}
as_record_destroy(rec);
if ( err.code != AEROSPIKE_OK ) {
PyObject * py_err = NULL;
error_to_pyobject(&err, &py_err);
PyObject *exception_type = raise_exception(&err);
if(PyObject_HasAttrString(exception_type, "key")) {
PyObject_SetAttrString(exception_type, "key", py_key);
}
if(PyObject_HasAttrString(exception_type, "bin")) {
PyObject_SetAttrString(exception_type, "bin", Py_None);
}
PyErr_SetObject(exception_type, py_err);
Py_DECREF(py_err);
}
return py_result;
}
int
main(int argc, char* argv[])
{
// Parse command line arguments.
if (! example_get_opts(argc, argv, EXAMPLE_BASIC_OPTS)) {
exit(-1);
}
// Connect to the aerospike database cluster.
aerospike as;
example_connect_to_aerospike(&as);
// Start clean.
example_remove_test_record(&as);
as_error err;
as_record* p_rec = NULL;
// Try to read the test record from the database. This should fail since the
// record is not there.
if (aerospike_key_get(&as, &err, NULL, &g_key, &p_rec) !=
AEROSPIKE_ERR_RECORD_NOT_FOUND) {
LOG("aerospike_key_get() returned %d - %s, expected "
"AEROSPIKE_ERR_RECORD_NOT_FOUND", err.code, err.message);
as_record_destroy(p_rec);
example_cleanup(&as);
exit(-1);
}
// Note that p_rec will still be NULL here.
LOG("get (non-existent record) failed as expected");
// Write a record to the database so we can demonstrate read success.
if (! write_record(&as)) {
example_cleanup(&as);
exit(-1);
}
// Read the (whole) test record from the database.
if (aerospike_key_get(&as, &err, NULL, &g_key, &p_rec) != AEROSPIKE_OK) {
LOG("aerospike_key_get() returned %d - %s", err.code, err.message);
example_cleanup(&as);
exit(-1);
}
// Log the result and recycle the as_record object.
LOG("record was successfully read from database:");
example_dump_record(p_rec);
as_record_destroy(p_rec);
p_rec = NULL;
// Select bins 1 and 3 to read.
static const char* bins_1_3[] = { "test-bin-1", "test-bin-3", NULL };
// Read only these two bins of the test record from the database.
if (aerospike_key_select(&as, &err, NULL, &g_key, bins_1_3, &p_rec) !=
AEROSPIKE_OK) {
LOG("aerospike_key_select() returned %d - %s", err.code, err.message);
example_cleanup(&as);
exit(-1);
}
// Log the result and recycle the as_record object.
LOG("bins 1 and 3 were read from database:");
example_dump_record(p_rec);
as_record_destroy(p_rec);
p_rec = NULL;
// Select non-existent bin 5 to read.
static const char* bins_5[] = { "test-bin-5", NULL };
// Read only this bin from the database. This call should return an
// as_record object with one bin, with null as_bin_value.
if (aerospike_key_select(&as, &err, NULL, &g_key, bins_5, &p_rec) !=
AEROSPIKE_OK) {
LOG("aerospike_key_select() returned %d - %s", err.code, err.message);
example_cleanup(&as);
exit(-1);
}
// Log the result and destroy the as_record object.
LOG("non-existent bin 5 was read from database:");
example_dump_record(p_rec);
as_record_destroy(p_rec);
p_rec = NULL;
// Sleep 2 seconds, just to show the TTL decrease.
LOG("waiting 2 seconds ...");
sleep(2);
// Use aerospike_key_exists() to get only record metadata.
if (aerospike_key_exists(&as, &err, NULL, &g_key, &p_rec) != AEROSPIKE_OK) {
LOG("aerospike_key_exists() returned %d - %s", err.code, err.message);
example_cleanup(&as);
exit(-1);
}
// Log the result, which will only have metadata.
LOG("existence check found record metadata:");
example_dump_record(p_rec);
as_record_destroy(p_rec);
// Cleanup and disconnect from the database cluster.
example_cleanup(&as);
LOG("get example successfully completed");
return 0;
}