Couchbase C Client  2.10.6
Asynchronous C Client for Couchbase
example/fts/fts.c

Shows Full Text search queries.

/* -*- Mode: C; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 2018 Couchbase, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libcouchbase/cbft.h>
#include "queries.h"
static void fail(const char *msg)
{
printf("[\x1b[31mERROR\x1b[0m] %s\n", msg);
exit(EXIT_FAILURE);
}
static void check(lcb_error_t err, const char *msg)
{
if (err != LCB_SUCCESS) {
char buf[1024] = {0};
snprintf(buf, sizeof(buf), "%s: %s\n", msg, lcb_strerror_short(err));
fail(buf);
}
}
static int err2color(lcb_error_t err)
{
switch (err) {
return 49;
default:
return 31;
}
}
static void ln2space(const void *buf, size_t nbuf)
{
size_t ii;
char *str = (char *)buf;
for (ii = 0; ii < nbuf; ii++) {
if (str[ii] == '\n') {
str[ii] = ' ';
}
}
}
static void row_callback(lcb_t instance, int type, const lcb_RESPFTS *resp)
{
ln2space(resp->row, resp->nrow);
if (resp->rc != LCB_SUCCESS) {
printf("\x1b[31m%s\x1b[0m: ", lcb_strerror_short(resp->rc));
}
printf("%.*s\n", (int)resp->nrow, (char *)resp->row);
if (resp->rflags & LCB_RESP_F_FINAL) {
printf("\n");
}
}
int main(int argc, char *argv[])
{
lcb_t instance;
char *bucket = NULL;
size_t ii;
if (argc < 2) {
printf("Usage: %s couchbase://host/bucket [ password [ username ] ]\n", argv[0]);
exit(EXIT_FAILURE);
}
{
struct lcb_create_st create_options = {0};
create_options.version = 3;
create_options.v.v3.connstr = argv[1];
if (argc > 2) {
create_options.v.v3.passwd = argv[2];
}
if (argc > 3) {
create_options.v.v3.username = argv[3];
}
check(lcb_create(&instance, &create_options), "create couchbase handle");
check(lcb_connect(instance), "schedule connection");
lcb_wait(instance);
check(lcb_get_bootstrap_status(instance), "bootstrap from cluster");
check(lcb_cntl(instance, LCB_CNTL_GET, LCB_CNTL_BUCKETNAME, &bucket), "get bucket name");
if (strcmp(bucket, "travel-sample") != 0) {
fail("expected bucket to be \"travel-sample\"");
}
}
for (ii = 0; ii < num_queries; ii++) {
lcb_CMDFTS cmd = {0};
cmd.callback = row_callback;
cmd.query = queries[ii].query;
cmd.nquery = queries[ii].query_len;
check(lcb_fts_query(instance, NULL, &cmd), "schedule FTS index creation operation");
printf("----> \x1b[1m%s\x1b[0m\n", queries[ii].comment);
printf("----> \x1b[32m%.*s\x1b[0m\n", (int)queries[ii].query_len, queries[ii].query);
lcb_wait(instance);
}
/* Now that we're all done, close down the connection handle */
lcb_destroy(instance);
return 0;
}