int main(int argc, char* argv[]) { // Parse command line arguments. if (! example_get_opts(argc, argv, EXAMPLE_MULTI_KEY_OPTS)) { exit(-1); } // Connect to the aerospike database cluster. aerospike as; example_connect_to_aerospike_with_udf_config(&as, UDF_USER_PATH); // Start clean. example_remove_test_records(&as); example_remove_index(&as, TEST_INDEX_NAME); // Register the UDF in the database cluster. if (! example_register_udf(&as, UDF_FILE_PATH)) { example_cleanup(&as); exit(-1); } // Create a numeric secondary index on test-bin. if (! example_create_integer_index(&as, "test-bin", TEST_INDEX_NAME)) { cleanup(&as); exit(-1); } if (! insert_records(&as)) { cleanup(&as); exit(-1); } if (! example_read_test_records(&as)) { cleanup(&as); exit(-1); } as_error err; // Create an as_query object. as_query query; as_query_init(&query, g_namespace, g_set); // Generate an as_query.where condition. Note that as_query_destroy() takes // care of destroying all the query's member objects if necessary. However // using as_query_where_inita() does avoid internal heap usage. as_query_where_inita(&query, 1); as_query_where(&query, "test-bin", as_integer_range(1, 10)); // Specify the UDF to use on the resulting stream. as_query_apply(&query, UDF_MODULE, "sum_test_bin", NULL); LOG("executing map-reduce query: where test-bin = 1 ... 10"); // Execute the query. This call blocks - callbacks are made in the scope of // this call. if (aerospike_query_foreach(&as, &err, NULL, &query, query_cb, NULL) != AEROSPIKE_OK) { LOG("aerospike_query_foreach() returned %d - %s", err.code, err.message); as_query_destroy(&query); cleanup(&as); exit(-1); } LOG("map-reduce query executed"); // Reuse the as_query object for another query. as_query_destroy(&query); as_query_init(&query, g_namespace, g_set); // Generate an as_query.where condition. as_query_where_inita(&query, 1); as_query_where(&query, "test-bin", as_integer_range(1, 10)); // Specify another UDF to use on the resulting stream. Like the previous UDF // it sums the test-bin values that satisfy the where condition, but does so // in a different, more efficient manner (see query_udf.lua). as_query_apply(&query, UDF_MODULE, "sum_test_bin_2", NULL); LOG("executing aggregate-reduce query: where test-bin = 1 ... 10"); // Execute the query. This call blocks - callbacks are made in the scope of // this call. if (aerospike_query_foreach(&as, &err, NULL, &query, query_cb, NULL) != AEROSPIKE_OK) { LOG("aerospike_query_foreach() returned %d - %s", err.code, err.message); as_query_destroy(&query); cleanup(&as); exit(-1); } LOG("aggregate-reduce query executed"); // Reuse the as_query object for another query. as_query_destroy(&query); as_query_init(&query, g_namespace, g_set); // Generate an as_query.where condition. as_query_where_inita(&query, 1); as_query_where(&query, "test-bin", as_integer_range(1, 10)); // Specify another UDF to use on the resulting stream. Like the previous // UDFs it sums test-bin values that satisfy the where condition, but first // applies a filter to sum only even values (see query_udf.lua). as_query_apply(&query, UDF_MODULE, "sum_test_bin_even", NULL); LOG("executing filter-aggregate-reduce query: where test-bin = 1 ... 10"); // Execute the query. This call blocks - callbacks are made in the scope of // this call. if (aerospike_query_foreach(&as, &err, NULL, &query, query_cb, NULL) != AEROSPIKE_OK) { LOG("aerospike_query_foreach() returned %d - %s", err.code, err.message); as_query_destroy(&query); cleanup(&as); exit(-1); } LOG("filter-aggregate-reduce query executed"); // Reuse the as_query object for another query. as_query_destroy(&query); as_query_init(&query, g_namespace, g_set); // No as_query.where condition in this case, so we include everything. // Specify another UDF to use on the resulting stream. This UDF operates on // the numbers-bin (string) values, and demonstrates a case where the value // returned by the query callback is an as_map (instead of an as_integer). as_query_apply(&query, UDF_MODULE, "count_numbers", NULL); LOG("executing numbers aggregate-reduce query: all records"); // Execute the query. This call blocks - callbacks are made in the scope of // this call. if (aerospike_query_foreach(&as, &err, NULL, &query, query_cb_map, NULL) != AEROSPIKE_OK) { LOG("aerospike_query_foreach() returned %d - %s", err.code, err.message); as_query_destroy(&query); cleanup(&as); exit(-1); } LOG("numbers aggregate-reduce query executed"); as_query_destroy(&query); // Cleanup and disconnect from the database cluster. cleanup(&as); LOG("aggregate query example successfully completed"); return 0; }
//------------------------------------------------ // Connect to database cluster. // void example_connect_to_aerospike(aerospike* p_as) { example_connect_to_aerospike_with_udf_config(p_as, NULL); }