1 /*
2  * librdkafka - Apache Kafka C library
3  *
4  * Copyright (c) 2012-2015, Magnus Edenhill
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright notice,
11  *    this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright notice,
13  *    this list of conditions and the following disclaimer in the documentation
14  *    and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include "test.h"
30 
31 /* Typical include path would be <librdkafka/rdkafka.h>, but this program
32  * is built from within the librdkafka source tree and thus differs. */
33 #include "rdkafka.h"  /* for Kafka driver */
34 
35 
36 /**
37  * Consumer partition assignment test, without consumer group balancing.
38  */
39 
40 
main_0016_assign_partition(int argc,char ** argv)41 int main_0016_assign_partition (int argc, char **argv) {
42 	const char *topic = test_mk_topic_name(__FUNCTION__, 1);
43 	rd_kafka_t *rk_p, *rk_c;
44         rd_kafka_topic_t *rkt_p;
45 	int msg_cnt = 1000;
46 	int msg_base = 0;
47         int partition_cnt = 2;
48         int partition;
49 	uint64_t testid;
50         rd_kafka_topic_conf_t *default_topic_conf;
51 	rd_kafka_topic_partition_list_t *partitions;
52 	char errstr[512];
53 
54 	testid = test_id_generate();
55 
56 	/* Produce messages */
57 	rk_p = test_create_producer();
58 	rkt_p = test_create_producer_topic(rk_p, topic, NULL);
59 
60         for (partition = 0 ; partition < partition_cnt ; partition++) {
61                 test_produce_msgs(rk_p, rkt_p, testid, partition,
62                                   msg_base+(partition*msg_cnt), msg_cnt,
63 				  NULL, 0);
64         }
65 
66 	rd_kafka_topic_destroy(rkt_p);
67 	rd_kafka_destroy(rk_p);
68 
69 
70         test_conf_init(NULL, &default_topic_conf, 0);
71         if (rd_kafka_topic_conf_set(default_topic_conf, "auto.offset.reset",
72 				    "smallest", errstr, sizeof(errstr)) !=
73 	    RD_KAFKA_CONF_OK)
74 		TEST_FAIL("%s\n", errstr);
75 
76         rk_c = test_create_consumer(topic/*group_id*/, NULL,
77 				    default_topic_conf);
78 
79 	/* Fill in partition set */
80 	partitions = rd_kafka_topic_partition_list_new(partition_cnt);
81 
82         for (partition = 0 ; partition < partition_cnt ; partition++)
83 		rd_kafka_topic_partition_list_add(partitions, topic, partition);
84 
85 	test_consumer_assign("assign.partition", rk_c, partitions);
86 
87 	/* Make sure all messages are available */
88 	test_consumer_poll("verify.all", rk_c, testid, partition_cnt,
89                            msg_base, partition_cnt * msg_cnt);
90 
91         /* Stop assignments */
92 	test_consumer_unassign("unassign.partitions", rk_c);
93 
94 #if 0 // FIXME when get_offset() is functional
95         /* Acquire stored offsets */
96         for (partition = 0 ; partition < partition_cnt ; partition++) {
97                 rd_kafka_resp_err_t err;
98                 rd_kafka_topic_t *rkt_c = rd_kafka_topic_new(rk_c, topic, NULL);
99                 int64_t offset;
100                 test_timing_t t_offs;
101 
102                 TIMING_START(&t_offs, "GET.OFFSET");
103                 err = rd_kafka_consumer_get_offset(rkt_c, partition,
104                                                    &offset, 5000);
105                 TIMING_STOP(&t_offs);
106                 if (err)
107                         TEST_FAIL("Failed to get offsets for %s [%"PRId32"]: "
108                                   "%s\n",
109                                   rd_kafka_topic_name(rkt_c), partition,
110                                   rd_kafka_err2str(err));
111                 TEST_SAY("get_offset for %s [%"PRId32"] returned %"PRId64"\n",
112                          rd_kafka_topic_name(rkt_c), partition, offset);
113 
114                 rd_kafka_topic_destroy(rkt_c);
115         }
116 #endif
117         test_consumer_close(rk_c);
118 
119 	rd_kafka_destroy(rk_c);
120 
121 	return 0;
122 }
123