Java tutorial
/* * Copyright 2014 Elastic Path Software Inc. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.optimusinfo.elasticpath.cortex.checkout; import org.apache.http.ParseException; import com.google.gson.Gson; import com.google.gson.JsonParseException; import com.optimusinfo.elasticpath.cortex.common.Constants; import com.optimusinfo.elasticpath.cortex.common.Utils; import android.content.Context; import android.os.AsyncTask; /** * This class executes the get complete cart request * * @author Optimus * */ public class AsyncTaskGetCheckout extends AsyncTask<Void, Void, String> { Context mCurrent; String URL; String accessToken; String headerContentTypeString; String headerContentTypeValue; String headerAuthorizationTypeString; String headerAuthorizationTypeValue; String headerAccessTokenInitializer; protected ListenerCheckOutOrder mListener; /** * Initialize the Async Task * * @param url * @param quantity * @param contentType * @param token */ public AsyncTaskGetCheckout(Context current, String url, String token, String contentTypeString, String contentTypeValue, String authoriztionString, String accessTokenInitializer, ListenerCheckOutOrder listener) { mCurrent = current; URL = url; accessToken = token; headerContentTypeString = contentTypeString; headerContentTypeValue = contentTypeValue; headerAuthorizationTypeString = authoriztionString; headerAccessTokenInitializer = accessTokenInitializer; mListener = listener; } @Override protected void onPreExecute() { super.onPreExecute(); if (!Utils.isNetworkAvailable(mCurrent)) { mListener.onTaskFailed(Constants.ErrorCodes.ERROR_NETWORK); cancel(true); return; } } @Override protected String doInBackground(Void... params) { String responseCheckOut = null; try { responseCheckOut = Utils.getJSONFromCortexUrl(URL, accessToken, headerContentTypeValue, headerContentTypeString, headerAuthorizationTypeString, headerAccessTokenInitializer); } catch (NullPointerException e) { e.printStackTrace(); } catch (ParseException e) { e.printStackTrace(); } return responseCheckOut; } @Override protected void onPostExecute(String responseCheckOut) { super.onPostExecute(responseCheckOut); try { if (responseCheckOut != null && responseCheckOut.length() != 0) { if (0 == responseCheckOut .compareTo(Integer.toString(Constants.ApiResponseCode.UNAUTHORIZED_ACCESS))) { mListener.onAuthenticationFailed(); } else { mListener.onTaskSuccessful(new Gson().fromJson(responseCheckOut, CheckoutModel.class)); } } } catch (NullPointerException e) { e.printStackTrace(); } catch (JsonParseException e) { e.printStackTrace(); mListener.onTaskFailed(Constants.ErrorCodes.ERROR_SERVER); } } }