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/*
*
* (C) 2013-14 - ntop.org
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include "ntop_includes.h"
/* **************************************************** */
ExportInterface::ExportInterface(const char *_endpoint, const char *_topic) {
topic = strdup(_topic), endpoint = strdup(_endpoint);
if((context = zmq_ctx_new()) == NULL) {
const char *msg = "Unable to initialize ZMQ context";
ntop->getTrace()->traceEvent(TRACE_ERROR, msg);
throw(msg);
}
if((publisher = zmq_socket(context, ZMQ_PUB)) == NULL) {
const char *msg = "Unable to create ZMQ socket";
ntop->getTrace()->traceEvent(TRACE_ERROR, msg);
throw(msg);
}
if(zmq_bind(publisher, endpoint) != 0)
ntop->getTrace()->traceEvent(TRACE_ERROR, "Unable to bind ZMQ endpoint %s: %s",
endpoint, strerror(errno));
else
ntop->getTrace()->traceEvent(TRACE_NORMAL,
"Successfully created ZMQ endpoint %s", endpoint);
}
/* **************************************************** */
ExportInterface::~ExportInterface() {
if(topic) free(topic);
if(endpoint) free(endpoint);
zmq_close(publisher);
zmq_ctx_destroy(context);
}
/* **************************************************** */
void ExportInterface::export_data(char *json) {
if(publisher) {
struct zmq_msg_hdr msg_hdr;
snprintf(msg_hdr.url, sizeof(msg_hdr.url), "%s", topic);
msg_hdr.version = 0, msg_hdr.size = strlen(json);
zmq_send(publisher, &msg_hdr, sizeof(msg_hdr), ZMQ_SNDMORE);
zmq_send(publisher, json, msg_hdr.size, 0);
ntop->getTrace()->traceEvent(TRACE_INFO, "[ZMQ] %s", json);
}
}
/* **************************************************** */
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