Encapsulating Google App Engine AsyncTask logic

UserEndpointAsyncTask.java

@Override
protected AsyncTaskResult<String> doInBackground(User... users) {
int userCount = users.length;
if(apiService == null) {  // Only do this once
    UserApi.Builder builder = new UserApi.Builder(AndroidHttp.newCompatibleTransport(),
            new AndroidJsonFactory(), null)
            // options for running against local devappserver
            .setRootUrl("http://" + ServerUtil.getHost() + ":8080/_ah/api/");
    //turn off compression when running against local devappserver
    Utility.compressTrafficIfNecessary(builder);
    // end options for devappserver
    apiService = builder.build();
}

try {
    for (User u : users)
        apiService.insert(u).execute();
    return new AsyncTaskResult<String>("success");
} catch (IOException e) {
    return new AsyncTaskResult<String>(e);
}

}

Utility.java

import com.google.api.client.googleapis.services.AbstractGoogleClientRequest;
import com.google.api.client.googleapis.services.GoogleClientRequestInitializer;
import com.google.api.client.googleapis.services.json.AbstractGoogleJsonClient.Builder

import java.io.IOException;

/**
 * Created by zak on 12/21/14.
 */
public class Utility {

    /**
     * When working with the local app engine sdk, compression should be disabled. When using production, it should be enabled.
     * @param builder the builder of the API object
     */
    public static void compressTrafficIfNecessary(Builder builder){
        if (BuildConfig.DEBUG)
            builder.setGoogleClientRequestInitializer(new GoogleClientRequestInitializer() {
                @Override
                public void initialize(AbstractGoogleClientRequest<?> abstractGoogleClientRequest) throws IOException {
                    abstractGoogleClientRequest.setDisableGZipContent(true);
                }
            });
    }
}