static bool throwExceptionAsNecessary( JNIEnv *env, status_t err, const char *msg = NULL) { const char *drmMessage = NULL; switch(err) { case ERROR_DRM_UNKNOWN: drmMessage = "General DRM error"; break; case ERROR_DRM_NO_LICENSE: drmMessage = "No license"; break; case ERROR_DRM_LICENSE_EXPIRED: drmMessage = "License expired"; break; case ERROR_DRM_SESSION_NOT_OPENED: drmMessage = "Session not opened"; break; case ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED: drmMessage = "Not initialized"; break; case ERROR_DRM_DECRYPT: drmMessage = "Decrypt error"; break; case ERROR_DRM_CANNOT_HANDLE: drmMessage = "Unsupported scheme or data format"; break; case ERROR_DRM_TAMPER_DETECTED: drmMessage = "Invalid state"; break; default: break; } String8 vendorMessage; if (err >= ERROR_DRM_VENDOR_MIN && err <= ERROR_DRM_VENDOR_MAX) { vendorMessage.format("DRM vendor-defined error: %d", err); drmMessage = vendorMessage.string(); } if (err == BAD_VALUE) { jniThrowException(env, "java/lang/IllegalArgumentException", msg); return true; } else if (err == ERROR_DRM_NOT_PROVISIONED) { jniThrowException(env, "android/media/NotProvisionedException", msg); return true; } else if (err == ERROR_DRM_DEVICE_REVOKED) { jniThrowException(env, "android/media/DeniedByServerException", msg); return true; } else if (err != OK) { String8 errbuf; if (drmMessage != NULL) { if (msg == NULL) { msg = drmMessage; } else { errbuf.format("%s: %s", msg, drmMessage); msg = errbuf.string(); } } ALOGE("Illegal state exception: %s", msg); jniThrowException(env, "java/lang/IllegalStateException", msg); return true; } return false; }