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Hello,
I just tried the heater demo on my BeagleBone and didn't have
issues. I think the problem could be in the message that you are publishing. Are you using KuraPayload to send the message, similar to the doPublish method of the demo? The demo assumes you are using the KuraPayload data model and will not work otherwise.
Thanks,
--Dave
Hi all,
I used BeagleBone Black and install Kura on it as gateway,
I can successfully receive the payload from the kura.demo.heater example bundle
but I can't receive the message sent from my paho client,this is my error message
2014-12-26 14:37:45,029 [MQTT Call: HelloBBB] DEBUG o.e.k.c.c.CloudServiceImpl
- Message arrived on topic: beaglebone/HelloBBB/heater/GGWWP
2014-12-26 14:37:45,032 [MQTT Call: HelloBBB] ERROR o.e.k.c.d.DataServiceListeners
- Unexpected Throwable
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.kura.core.message.protobuf.KuraPayloadProto
at org.eclipse.kura.core.message.protobuf.KuraPayloadProto$KuraPayload.getDescriptor(KuraPayloadProto.java:69)
at org.eclipse.kura.core.message.protobuf.KuraPayloadProto$KuraPayload$Builder.getDescriptorForType(KuraPayloadProto.java:2149)
at com.google.protobuf.AbstractMessage$Builder.mergeFieldFrom(AbstractMessage.java:339)
at com.google.protobuf.GeneratedMessage$ExtendableBuilder.parseUnknownField(GeneratedMessage.java:976)
at org.eclipse.kura.core.message.protobuf.KuraPayloadProto$KuraPayload$Builder.mergeFrom(KuraPayloadProto.java:2294)
at org.eclipse.kura.core.message.protobuf.KuraPayloadProto$KuraPayload$Builder.mergeFrom(KuraPayloadProto.java:1)
at com.google.protobuf.AbstractMessage$Builder.mergeFrom(AbstractMessage.java:300)
at com.google.protobuf.AbstractMessage$Builder.mergeFrom(AbstractMessage.java:238)
at com.google.protobuf.AbstractMessageLite$Builder.mergeFrom(AbstractMessageLite.java:162)
at com.google.protobuf.AbstractMessage$Builder.mergeFrom(AbstractMessage.java:716)
at com.google.protobuf.AbstractMessage$Builder.mergeFrom(AbstractMessage.java:238)
at com.google.protobuf.AbstractMessageLite$Builder.mergeFrom(AbstractMessageLite.java:153)
at com.google.protobuf.AbstractMessage$Builder.mergeFrom(AbstractMessage.java:709)
at org.eclipse.kura.core.message.protobuf.KuraPayloadProto$KuraPayload.parseFrom(KuraPayloadProto.java:2024)
at org.eclipse.kura.core.cloud.CloudPayloadProtoBufDecoderImpl.buildFromByteArray(CloudPayloadProtoBufDecoderImpl.java:63)
at org.eclipse.kura.core.cloud.CloudServiceImpl.onMessageArrived(CloudServiceImpl.java:411)
at org.eclipse.kura.core.data.DataServiceListeners.onMessageArrived(DataServiceListeners.java:98)
at org.eclipse.kura.core.data.DataServiceImpl.onMessageArrived(DataServiceImpl.java:332)
at org.eclipse.kura.core.data.transport.mqtt.DataTransportListeners.onMessageArrived(DataTransportListeners.java:132)
at org.eclipse.kura.core.data.transport.mqtt.MqttDataTransport.messageArrived(MqttDataTransport.java:558)
at org.eclipse.paho.client.mqttv3.internal.CommsCallback.handleMessage(CommsCallback.java:349)
at org.eclipse.paho.client.mqttv3.internal.CommsCallback.run(CommsCallback.java:162)
at java.lang.Thread.run(Thread.java:745)
and this is my piece of code
public Heater()
{
super();
m_random = new Random();
m_worker = Executors.newSingleThreadScheduledExecutor();
}
protected void activate(ComponentContext componentContext, Map<String,Object>
properties)
{
s_logger.info("Activating Heater...");
m_properties = properties;
for (String s : properties.keySet()) {
s_logger.info("Activate - "+s+":
"+properties.get(s));
}
// get the mqtt client for this application
try {
// Acquire a Cloud Application Client for this Application
s_logger.info("Getting CloudClient
for {}...", APP_ID);
m_cloudClient = m_cloudService.newCloudClient(APP_ID);
m_cloudClient.addCloudClientListener(this);
m_cloudClient.subscribe("GGWWP", 0);
//doUpdate(false); i remove this to avoid sending message
}
catch (Exception e) {
s_logger.error("Error during component activation", e);
throw new ComponentException(e);
}
s_logger.info("Activating Heater...
Done.");
}
Thanks a lot !!!!
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