void RabbitMQConnection::deleteExchange (const std::string &exchange_name,
bool ifUnused)
{
amqp_bytes_t exchange = amqp_cstring_bytes (exchange_name.c_str() );
amqp_exchange_delete (conn, 1, exchange, ifUnused);
}
/**
* Internal function used to initialize the connection to
* the RabbitMQ server. Also used to reconnect to the server
* in case the connection fails and to redeclare exchanges
* and queues if they are lost
*
*/
static int
init_conn(MQ_INSTANCE *my_instance)
{
int rval = 0;
int amqp_ok = AMQP_STATUS_OK;
if(my_instance->use_ssl){
if((my_instance->sock = amqp_ssl_socket_new(my_instance->conn)) != NULL){
if((amqp_ok = amqp_ssl_socket_set_cacert(my_instance->sock,my_instance->ssl_CA_cert)) != AMQP_STATUS_OK){
skygw_log_write(LOGFILE_ERROR,
"Error : Failed to set CA certificate: %s", amqp_error_string2(amqp_ok));
goto cleanup;
}
if((amqp_ok = amqp_ssl_socket_set_key(my_instance->sock,
my_instance->ssl_client_cert,
my_instance->ssl_client_key)) != AMQP_STATUS_OK){
skygw_log_write(LOGFILE_ERROR,
"Error : Failed to set client certificate and key: %s", amqp_error_string2(amqp_ok));
goto cleanup;
}
}else{
amqp_ok = AMQP_STATUS_SSL_CONNECTION_FAILED;
skygw_log_write(LOGFILE_ERROR,
"Error : SSL socket creation failed.");
goto cleanup;
}
/**SSL is not used, falling back to TCP*/
}else if((my_instance->sock = amqp_tcp_socket_new(my_instance->conn)) == NULL){
skygw_log_write(LOGFILE_ERROR,
"Error : TCP socket creation failed.");
goto cleanup;
}
/**Socket creation was successful, trying to open the socket*/
if((amqp_ok = amqp_socket_open(my_instance->sock,my_instance->hostname,my_instance->port)) != AMQP_STATUS_OK){
skygw_log_write(LOGFILE_ERROR,
"Error : Failed to open socket: %s", amqp_error_string2(amqp_ok));
goto cleanup;
}
amqp_rpc_reply_t reply;
reply = amqp_login(my_instance->conn,my_instance->vhost,0,AMQP_DEFAULT_FRAME_SIZE,0,AMQP_SASL_METHOD_PLAIN,my_instance->username,my_instance->password);
if(reply.reply_type != AMQP_RESPONSE_NORMAL){
skygw_log_write(LOGFILE_ERROR,
"Error : Login to RabbitMQ server failed.");
goto cleanup;
}
amqp_channel_open(my_instance->conn,my_instance->channel);
reply = amqp_get_rpc_reply(my_instance->conn);
if(reply.reply_type != AMQP_RESPONSE_NORMAL){
skygw_log_write(LOGFILE_ERROR,
"Error : Channel creation failed.");
goto cleanup;
}
amqp_exchange_declare(my_instance->conn,my_instance->channel,
amqp_cstring_bytes(my_instance->exchange),
amqp_cstring_bytes(my_instance->exchange_type),
0, 1,
amqp_empty_table);
reply = amqp_get_rpc_reply(my_instance->conn);
if(reply.reply_type != AMQP_RESPONSE_NORMAL){
skygw_log_write(LOGFILE_ERROR,
"Error : Exchange declaration failed,trying to redeclare the exchange.");
if(reply.reply_type == AMQP_RESPONSE_SERVER_EXCEPTION){
if(reply.reply.id == AMQP_CHANNEL_CLOSE_METHOD){
amqp_send_method(my_instance->conn,my_instance->channel,AMQP_CHANNEL_CLOSE_OK_METHOD,NULL);
}else if(reply.reply.id == AMQP_CONNECTION_CLOSE_METHOD){
amqp_send_method(my_instance->conn,my_instance->channel,AMQP_CONNECTION_CLOSE_OK_METHOD,NULL);
}
my_instance->channel++;
amqp_channel_open(my_instance->conn,my_instance->channel);
amqp_exchange_delete(my_instance->conn,my_instance->channel,amqp_cstring_bytes(my_instance->exchange),0);
amqp_exchange_declare(my_instance->conn,my_instance->channel,
amqp_cstring_bytes(my_instance->exchange),
amqp_cstring_bytes(my_instance->exchange_type),
0, 1,
amqp_empty_table);
reply = amqp_get_rpc_reply(my_instance->conn);
}
if(reply.reply_type != AMQP_RESPONSE_NORMAL){
skygw_log_write(LOGFILE_ERROR,
"Error : Exchange redeclaration failed.");
goto cleanup;
}
}
if(my_instance->queue){
amqp_queue_declare(my_instance->conn,my_instance->channel,
amqp_cstring_bytes(my_instance->queue),
0, 1, 0, 0,
amqp_empty_table);
reply = amqp_get_rpc_reply(my_instance->conn);
if(reply.reply_type != AMQP_RESPONSE_NORMAL){
skygw_log_write(LOGFILE_ERROR,
"Error : Queue declaration failed.");
goto cleanup;
}
amqp_queue_bind(my_instance->conn,my_instance->channel,
amqp_cstring_bytes(my_instance->queue),
amqp_cstring_bytes(my_instance->exchange),
amqp_cstring_bytes(my_instance->key),
amqp_empty_table);
reply = amqp_get_rpc_reply(my_instance->conn);
if(reply.reply_type != AMQP_RESPONSE_NORMAL){
skygw_log_write(LOGFILE_ERROR,
"Error : Failed to bind queue to exchange.");
goto cleanup;
}
}
rval = 1;
cleanup:
return rval;
}
