mbed based IoT Gateway More details http://blog.thiseldo.co.uk/wp-filez/IoTGateway.pdf

Dependencies:   NetServices FatFileSystem csv_parser mbed MQTTClient RF12B DNSResolver SDFileSystem

Revision:
0:a29a0225f203
Child:
2:27714c8c9c0a
diff -r 000000000000 -r a29a0225f203 Outputs/OutputMqtt.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Outputs/OutputMqtt.h	Mon Apr 02 22:05:20 2012 +0000
@@ -0,0 +1,85 @@
+/** IoT Gateway Output definition for MQTT
+ *
+ * @author Andrew Lindsay
+ *
+ * @section LICENSE
+ *
+ * Copyright (c) 2012 Andrew Lindsay (andrew [at] thiseldo [dot] co [dot] uk)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ * 
+ * @section DESCRIPTION
+ * 
+ * 
+ */
+
+#ifndef _OUTPUTMQTT_H
+#define _OUTPUTMQTT_H
+
+#include "mbed.h"
+#include "MQTTClient.h"
+
+/** Implementation of MQTT output class
+ *
+ */
+class OutputMqtt {
+public:
+    /** Default Constructor
+     */
+    OutputMqtt();
+
+    /** Initialise output definition object
+     */
+    virtual void init();
+    
+    /** Set the IP address of the host
+     * 
+     * @param serverIpAddr IP Addres of host
+     * @param port         Port to use
+     * @param username     Username or NULL if not used
+     * @param password     Password or NULL if not used
+     */
+    void initConnection(IpAddr *serverIpAddr, short port, char *username, char *password );
+
+    /** Add a character pointer reading to output 
+     * 
+     * @param topic The topic to publish to
+     * @param unused Unused in this output
+     * @param reading The new value
+     */
+    virtual void addReading(char *topic, char *unused, char *reading );
+
+    /** Send any collected readings
+     * Does nothing in MQTT as already published 
+     * 
+     * @returns -1 for fail, 1 for success
+     */
+    virtual int send();
+
+protected:
+    MQTTClient mqtt;
+    int sendCount;
+    IpAddr *serverIpAddr;
+    short port;
+    char *username;
+    char *password;
+
+};
+
+#endif /* _OUTPUTMQTT_H */
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