Getting connect timed out issue with discovery api

[Mayur Kshirsagar]

Hi 

I am newbie for google api.I am trying use google discovery api using java but getting exception "connect timed out".

Java Code:

public class OnlinePredictionSample {

  public static void main(String[] args) throws Exception {

    HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();   

    JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();

    Discovery discovery= new Discovery(httpTransport, jsonFactory, null);

    RestDescription api = discovery.apis().getRest("ml", "v1").execute();

    JsonSchema param = new JsonSchema();

    String projectId = "fishid-imagerecognition";

    String modelId = "fish_model";

    String versionId = "v1";

    param.set(

        "name", String.format("projects/%s/models/%s/versions/%s", projectId, modelId, versionId));

    System.out.println("param"+param.toPrettyString());

       

    RestMethod method = api.getResources().get("projects").getMethods().get("predict");

    GenericUrl url =

        new GenericUrl(UriTemplate.expand(api.getBaseUrl() + method.getPath(), param, true));

    System.out.println(url);

    String contentType = "application/json";

    File requestBodyFile = new File("input.txt");

    HttpContent content = new FileContent(contentType, requestBodyFile);

    System.out.println(content.getLength());

    File myFile = new File("setting/FishID-ImageRecognition-cd7d39757eae.json");

    InputStream credentialStream = new FileInputStream(myFile);

    System.out.println("Attempting to read from file in: "+myFile.getCanonicalPath());

    GoogleCredential credential =GoogleCredential.fromStream(credentialStream);

    System.out.println("credential: "+credential.getServiceAccountProjectId());

    HttpRequestFactory requestFactory = httpTransport.createRequestFactory(credential);

    HttpRequest request = requestFactory.buildRequest(method.getHttpMethod(), url, content);

    String response = request.execute().parseAsString();

    System.out.println(response);

  }

}

Exception

:

Mar 23, 2018 5:24:33 PM com.google.api.client.googleapis.services.AbstractGoogleClient <init>

WARNING: Application name is not set. Call Builder#setApplicationName.

Exception in thread "main" java.net.SocketTimeoutException: connect timed out

at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)

at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)

at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)

at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)

at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)

at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)

at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

at java.net.Socket.connect(Socket.java:589)

at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:673)

at sun.net.NetworkClient.doConnect(NetworkClient.java:175)

at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)

at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)

at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)

at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)

at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)

at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)

at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)

at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)

at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:153)

at com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:104)

at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:981)

at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:419)

at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:352)

at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:469)

at com.google.cloud.samples.mlengine_online_prediction.OnlinePredictionSample.main(OnlinePredictionSample.java:46)