Hello everyone!!
I'm trying to connect my java application to the thingworx istance. The goal was reading the value of a property to see if the connection to the thingworx istance was working but the reason I'm here is exactly that it's not even working!
I already saw a bunch of posts about this and some of them are really close to the situation I have but I decided to open a new post because in the log I get some errors that in the other posts I haven't seen yet.
Here is the log. The first underlined lines are the ones that I haven't found in the other posts. Apperantly I have a problem with javassist but I don't know how to solve it and I'm not even sure if that's actually the cause that doesn't allow me to connect to the istance.
The application has started...
11:43:30.681 [main] INFO c.t.c.c.p.ClientMessageProcessor - Created new ClientMessageProcessor [minPoolSize: 4, maxPoolSize: 10, maxThreadLife: 10000, maxQueueSize: 1000]
11:43:30.716 [main] DEBUG i.n.u.i.l.InternalLoggerFactory - Using SLF4J as the default logging framework
11:43:30.723 [main] DEBUG i.n.c.MultithreadEventLoopGroup - -Dio.netty.eventLoopThreads: 16
11:43:30.734 [main] DEBUG i.n.util.internal.PlatformDependent0 - sun.nio.ch.DirectBuffer.cleaner(): available
11:43:30.735 [main] DEBUG i.n.util.internal.PlatformDependent0 - java.nio.Buffer.address: available
11:43:30.735 [main] DEBUG i.n.util.internal.PlatformDependent0 - sun.misc.Unsafe.theUnsafe: available
11:43:30.736 [main] DEBUG i.n.util.internal.PlatformDependent0 - sun.misc.Unsafe.copyMemory: available
11:43:30.737 [main] DEBUG i.n.util.internal.PlatformDependent0 - java.nio.Bits.unaligned: true
11:43:30.737 [main] DEBUG i.n.util.internal.PlatformDependent - Platform: Windows
11:43:30.737 [main] DEBUG i.n.util.internal.PlatformDependent - Java version: 8
11:43:30.737 [main] DEBUG i.n.util.internal.PlatformDependent - -Dio.netty.noUnsafe: false
11:43:30.738 [main] DEBUG i.n.util.internal.PlatformDependent - sun.misc.Unsafe: available
11:43:30.738 [main] DEBUG i.n.util.internal.PlatformDependent - -Dio.netty.noJavassist: false
11:43:30.739 [main] DEBUG i.n.util.internal.PlatformDependent - Javassist: unavailable
11:43:30.739 [main] DEBUG i.n.util.internal.PlatformDependent - You don't have Javassist in your class path or you don't have enough permission to load dynamically generated classes. Please check the configuration for better performance.
11:43:30.739 [main] DEBUG i.n.util.internal.PlatformDependent - -Dio.netty.tmpdir: C:\Users\WHATSA~1\AppData\Local\Temp (java.io.tmpdir)
11:43:30.739 [main] DEBUG i.n.util.internal.PlatformDependent - -Dio.netty.bitMode: 64 (sun.arch.data.model)
11:43:30.740 [main] DEBUG i.n.util.internal.PlatformDependent - -Dio.netty.noPreferDirect: false
11:43:30.754 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.noKeySetOptimization: false
11:43:30.754 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.selectorAutoRebuildThreshold: 512
11:43:30.843 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numHeapArenas: 8
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numDirectArenas: 8
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.pageSize: 8192
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxOrder: 11
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.chunkSize: 16777216
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.tinyCacheSize: 512
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.smallCacheSize: 256
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.normalCacheSize: 64
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxCachedBufferCapacity: 32768
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.cacheTrimInterval: 8192
11:43:30.844 [main] DEBUG i.n.buffer.PooledByteBufAllocator - -Dio.netty.allocator.cacheCleanupInterval: 5000 ms
11:43:30.851 [main] DEBUG c.t.c.c.e.m.CommunicationEndpointMonitorTask - Initializing CommunicationEndpoint Connection Monitor...
11:43:30.852 [Client-EndpointMonitor-1] DEBUG c.t.c.c.e.m.CommunicationEndpointMonitorTask - CommunicationEndpoint Monitor - checking for disconnected endpoints
11:43:30.852 [Client-EndpointMonitor-1] INFO c.t.c.c.e.m.CommunicationEndpointMonitorTask - Endpoint not connected [name: EventClient, id: 0]. Attempting [re]connect...
11:43:30.852 [Client-EndpointMonitor-1] DEBUG c.t.c.c.e.ClientCommunicationEndpoint - Clearing endpoint authentication data [id: 0]
11:43:30.852 [Client-EndpointMonitor-1] INFO c.t.c.c.e.ClientCommunicationEndpoint - Needed to refill connections on client endpoint [id: 0] : [active: 0, max: 1]
11:43:30.998 [Client-EndpointMonitor-1] DEBUG i.n.util.internal.ThreadLocalRandom - -Dio.netty.initialSeedUniquifier: 0x5f50c9f995c33738
11:43:31.004 [Client-EndpointMonitor-1] DEBUG i.n.channel.ChannelOutboundBuffer - -Dio.netty.threadLocalDirectBufferSize: 65536
11:43:31.004 [Client-EndpointMonitor-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxCapacity.default: 262144
11:43:31.015 [Client-EndpointMonitor-1] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.allocator.type: unpooled
11:43:31.033 [NettyClient-NIO-1] DEBUG c.t.c.c.c.n.NettyClientConnectionFactory - initializing a secure websocket connection [ignore ssl errors: true]
11:43:31.282 [NettyClient-NIO-1] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetectionLevel: simple
11:43:41.027 [Client-EndpointMonitor-1] INFO c.t.c.c.c.n.NettyClientConnectionFactory - forcing underlying tcp channel closed [is open: true, is active: false]
11:43:41.028 [Client-EndpointMonitor-1] ERROR c.t.c.c.e.ClientCommunicationEndpoint - Refilling connections on [endpoint 0, uri: wss://ubol.cloud.thingworx.com:443/Thingworx/WS] failed : timeout waiting for websocket handshake to complete
11:43:41.028 [Client-EndpointMonitor-1] INFO c.t.c.c.e.m.CommunicationEndpointMonitorTask - Endpoint reconnection was unsuccessful [name: EventClient, id: 0]
Here is my code. I've posted this because I use a while so that the app waits until the connection is enstablished. If I don't use the while the application keeps running and just ends printing "Terminating the application..." even if the client hasn't even started the websocket protocol yet. So the next question is, do you think is okay to have that while or am I using the wrong primitives here and there is a better way to wait for the connection to be enstablished?
System.out.println("The application has started...");
ClientConfigurator config = new ClientConfigurator();
config.setUri(URI);
//Contesto sicurezza
SecurityClaims claims = SecurityClaims.fromAppKey(appkey);
config.setSecurityClaims(claims);
config.setName("EventClient");
config.setAsSDKType();
config.ignoreSSLErrors(true);
/* CREAZIONE DEL CLIENT - PROVA */
try
{
EventClient client = new EventClient(config);
client.start();
/* the while stops the program until the client is connected, if I don't do this the app just terminates before even trying to initialize the secure websocket connection, I don't know why */
while(!client.isConnected());
if(client.isConnected())
{
System.out.println("Currently connected to "+URI);
InfoTable result = client.readProperty(ThingworxEntityTypes.Things, "AndroidDevice_356768063537221", "cpuUsage", 15000);
String temp = result.getFirstRow().getStringValue("cpuUsage");
System.out.println("Value of the property cpuUsage: "+temp);
}
}
catch (Exception e)
{
System.out.println("The application is not connected to ThingWorx, terminating...");
e.printStackTrace();
}
System.out.println("Terminating the application...");
I really hope you guys can help me because for now I can't really see a way out!!
Michael
