Cloud IoT: device registry code on an Android device

[rafaelsf80]

Hi,

I'm having some authentication issues when trying to execute some code of Cloud IoT examples on an Android device:

For example, this is the code as available on DeviceRegistryExample.java:

        GoogleCredential credential = GoogleCredential.getApplicationDefault().createScoped(CloudIotScopes.all());
        
        JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();
        HttpRequestInitializer init = new RetryHttpInitializerWrapper(credential);
        
        CloudIot service = new CloudIot.Builder(GoogleNetHttpTransport.newTrustedTransport(),jsonFactory, init).setApplicationName(APP_NAME).build();

Since Default Credentials are only valid within App Engine or Compute Engine, I am using a service account for Android instead. The code now looks like this:

        AssetManager am = Main.mContext.getAssets();
        InputStream isCredentialsFile = am.open(CREDENTIALS_FILE_SERVICE_ACCOUNT_PUBSUB_AND_IOT);
        GoogleCredential credential = GoogleCredential.fromStream(isCredentialsFile).createScoped(CloudIotScopes.all());

        JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();
        HttpRequestInitializer init = new RetryHttpInitializerWrapper(credential);

        CloudIot service = new CloudIot.Builder(GoogleNetHttpTransport.newTrustedTransport(), jsonFactory, init).setApplicationName(TAG).build();

I'm having the following runtime JKS not found exception (JKS keystore not available) on CloudIot.Builder line. Any suggestions would be appreciated.

Thanks,
Rafa

03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: java.security.KeyStoreException: JKS not found
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at java.security.KeyStore.getInstance(KeyStore.java:890)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at com.google.api.client.util.SecurityUtils.getJavaKeyStore(SecurityUtils.java:53)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at com.google.api.client.googleapis.GoogleUtils.getCertificateTrustStore(GoogleUtils.java:74)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at com.google.api.client.googleapis.javanet.GoogleNetHttpTransport.newTrustedTransport(GoogleNetHttpTransport.java:55)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at com.google.cloud.iberia.IoTCoreRegisterService.onHandleIntent(IoTCoreRegisterService.java:80)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:76)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at android.os.Handler.dispatchMessage(Handler.java:106)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at android.os.Looper.loop(Looper.java:164)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at android.os.HandlerThread.run(HandlerThread.java:65)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: Caused by: java.security.NoSuchAlgorithmException: JKS KeyStore not available
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at sun.security.jca.GetInstance.getInstance(GetInstance.java:159)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at java.security.Security.getImpl(Security.java:627)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: at java.security.KeyStore.getInstance(KeyStore.java:887)
03-20 15:35:26.401 29410-29519/com.google.cloud.iberia I/System.out: ... 8 more

[kurtisvg]

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