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Copy pathSampleCustomLoggerCApi.c
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153 lines (131 loc) · 4.91 KB
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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 <ctype.h>
#include <pulsar/c/client.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
char *current_time() {
char *time_str = (char *)malloc(128);
struct tm *p;
time_t now = time(0);
p = gmtime(&now);
strftime(time_str, 128, "%Y-%m-%d %H:%M:%S", p);
return time_str;
}
typedef struct LogContext {
FILE *file;
pulsar_logger_level_t level;
} LogContext;
void log_context_init(LogContext *ctx, const char *level, const char *filename);
void log_context_destroy(LogContext *ctx);
bool is_enabled(pulsar_logger_level_t level, void *ctx) { return level >= ((LogContext *)ctx)->level; }
void log_func(pulsar_logger_level_t level, const char *file, int line, const char *message, void *ctx) {
char *time_str = current_time();
fprintf(((LogContext *)ctx)->file, "[%s] [%u] [%s] [%d] [%s] \n", time_str, level, file, line, message);
free(time_str);
}
int main(int argc, char *argv[]) {
if (argc < 2) {
fprintf(stderr,
"Usage: %s log-level <filename>\n\n"
" log-level could be DEBUG, INFO, WARN or ERROR\n"
" If filename is specified, logs will be printed into the given file.\n"
" Otherwise, logs will be printed into the standard output.\n",
argv[0]);
return 1;
}
LogContext ctx;
log_context_init(&ctx, argv[1], (argc > 2) ? argv[2] : NULL);
pulsar_logger_t logger;
logger.ctx = &ctx;
logger.is_enabled = &is_enabled;
logger.log = &log_func;
pulsar_client_configuration_t *conf = pulsar_client_configuration_create();
pulsar_client_configuration_set_logger_t(conf, logger);
pulsar_client_configuration_set_memory_limit(conf, 64 * 1024 * 1024);
pulsar_client_t *client = pulsar_client_create("pulsar://localhost:6650", conf);
pulsar_producer_configuration_t *producer_conf = pulsar_producer_configuration_create();
pulsar_producer_configuration_set_batching_enabled(producer_conf, 1);
pulsar_producer_t *producer;
pulsar_result err = pulsar_client_create_producer(client, "my-topic", producer_conf, &producer);
if (err != pulsar_result_Ok) {
printf("Failed to create producer: %s\n", pulsar_result_str(err));
return 1;
}
for (int i = 0; i < 10; i++) {
const char *data = "my-content";
pulsar_message_t *message = pulsar_message_create();
pulsar_message_set_content(message, data, strlen(data));
err = pulsar_producer_send(producer, message);
if (err == pulsar_result_Ok) {
printf("Sent message %d\n", i);
} else {
printf("Failed to publish message: %s\n", pulsar_result_str(err));
return 1;
}
pulsar_message_free(message);
}
// Cleanup
pulsar_producer_close(producer);
pulsar_producer_free(producer);
pulsar_producer_configuration_free(producer_conf);
pulsar_client_close(client);
pulsar_client_free(client);
pulsar_client_configuration_free(conf);
log_context_destroy(&ctx);
}
static bool str_equal_ignore_case(const char *lhs, const char *rhs) {
int length = strlen(lhs);
for (int i = 0; i < length; i++) {
if (lhs[i] != rhs[i]) {
return false;
}
}
return true;
}
void log_context_init(LogContext *ctx, const char *level, const char *filename) {
if (str_equal_ignore_case(level, "debug")) {
ctx->level = pulsar_DEBUG;
} else if (str_equal_ignore_case(level, "info")) {
ctx->level = pulsar_INFO;
} else if (str_equal_ignore_case(level, "warn")) {
ctx->level = pulsar_WARN;
} else if (str_equal_ignore_case(level, "error")) {
ctx->level = pulsar_ERROR;
} else {
fprintf(stderr, "Unknown log level: %s\n", level);
exit(1);
}
if (filename) {
ctx->file = fopen(filename, "w+");
if (!ctx->file) {
fprintf(stderr, "Failed to open %s\n", filename);
exit(2);
}
} else {
ctx->file = stdout;
}
}
void log_context_destroy(LogContext *ctx) {
if (ctx && ctx->file && ctx->file != stdout) {
fclose(ctx->file);
}
}