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package com.data.api.connect.client.contact.impl;

import java.io.IOException;
import com.data.api.connect.client.oauth2.AuthenticationException;
import com.data.api.connect.client.oauth2.UnauthenticatedSessionException;
import com.ning.http.client.AsyncCompletionHandler;
import com.ning.http.client.AsyncHttpClient.BoundRequestBuilder;
import com.ning.http.client.Response;


public abstract class AbstractAsyncService extends AbstractService {
    
    protected void execute(final BoundRequestBuilder builder,
            final AsyncCompletionHandler<Integer> handler) throws IOException,
            UnauthenticatedSessionException, AuthenticationException {
        authenticateSession();
        setHeader(builder);
        builder.execute(new AsyncCompletionHandler<Integer>() {
            
            @Override
            public Integer onCompleted(Response response) throws Exception {
                if (isTokenExpired(response.getStatusCode())) {
                    authenticateSession();
                    setHeader(builder);
                    builder.execute(new AsyncCompletionHandler<Integer>() {
                        
                        @Override
                        public Integer onCompleted(Response response) throws Exception {
                            handler.onCompleted(response);
                            return response.getStatusCode();
                        }
                        
                        @Override
                        public void onThrowable(Throwable t) {
                            handler.onThrowable(t);
                        }
                    });
                }
                else {
                    handler.onCompleted(response);
                }
                return response.getStatusCode();
            }
            
            @Override
            public void onThrowable(Throwable t) {
                handler.onThrowable(t);
            }
        });
    }
}
