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Hi all,
I am now using Thingworx SDK and eclipse plugin to create thingworx extension.
But I found when I create a service, I don't know how to return value to thingworx.
In pure java environment, I use code below and can get JSON reply:
public class Imagetemp
{
public static void main(String[] args) throws Exception {
URL myUrl = new URL(httpsURL);
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("proxy.company.com", 8080));
HttpsURLConnection conn = (HttpsURLConnection)myUrl.openConnection(proxy);
TrustModifier.relaxHostChecking(conn);
InputStream is = conn.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String inputLine;
while ((inputLine = br.readLine()) != null) {
System.out.println(inputLine);
}
br.close();
// Add your code below
}
}
And in thingworx project, I copy the code above into logger.trace:
@ThingworxBaseTemplateDefinition(name = "GenericThing")
@ThingworxPropertyDefinitions(properties = {
@ThingworxPropertyDefinition(name = "ImageAnal", description = "", category = "", baseType = "STRING", isLocalOnly = false, aspects = {
"isPersistent:true", "isLogged:true", "dataChangeType:VALUE" }) })
public class FinalImage extends Thing {
private static Logger _logger = LogUtilities.getInstance().getApplicationLogger(FinalImage.class);
@ThingworxServiceDefinition(name = "ImageAna", description = "", category = "", isAllowOverride = false, aspects = {
"isAsync:false" })
@ThingworxServiceResult(name = "Result", description = "", baseType = "STRING", aspects = {})
public String ImageAna() throws Exception {
_logger.trace("Entering Service: ImageAna");
URL myUrl = new URL(httpsURL);
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("proxy.micron.com", 8080));
HttpsURLConnection conn = (HttpsURLConnection)myUrl.openConnection(proxy);
TrustModifier.relaxHostChecking(conn);
InputStream is = conn.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
StringBuilder sb = new StringBuilder();
String Result = "";
while ((Result = br.readLine()) != null) {
System.out.println(Result);
}
_logger.trace("Exiting Service: ImageAna");
return Result;
}
}
But the output is empty.
Can I know how to pass the result "inputline" to Result and get result when I trigger the service. Thanks!
Thanks
I think this may be a simple bug in the Eclipse Extension code whereby it uses a capital R for Result. See if changing:
@ThingworxServiceResult(name = "Result", description = "", baseType = "STRING", aspects = {})
to
@ThingworxServiceResult(name = "result", description = "", baseType = "STRING", aspects = {})
fixes the issue.
Hi James,
Thank you for your reply.
I still cannot get the output.
Yingnan
Can you enable remote debugging to make sure Result is getting set with a non-empty string value? Here is a snippet on how to enable and use remote debugging in Eclipse: https://support.ptc.com/appserver/cs/view/solution.jsp?n=CS219756