com.appstarter.utils.WebUtils.java Source code

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Here is the source code for com.appstarter.utils.WebUtils.java

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/*
 * Copyright (C) 2011 Matthieu Coisne
 *
 * 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.appstarter.utils;

import java.io.IOException;
import java.net.URL;
import java.util.List;
import java.util.concurrent.TimeUnit;

import org.apache.http.NameValuePair;

import android.util.Log;

import com.appstarter.BuildConfig;
import com.appstarter.exceptions.AppStarterException;
import com.squareup.okhttp.FormEncodingBuilder;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import com.squareup.okhttp.Response;

/**
 * https://github.com/square/okhttp/wiki/Recipes
 */
public final class WebUtils {

    private static String TAG = "AppStarter.WebUtils";

    private WebUtils() {
    }

    public static String doHttpGet(String url) throws AppStarterException {
        if (BuildConfig.DEBUG) {
            Log.d(TAG, "doHttpGet - url: " + url);
        }

        String ret = "";

        OkHttpClient client = new OkHttpClient();
        client.setConnectTimeout(15, TimeUnit.SECONDS); // connect timeout
        client.setReadTimeout(15, TimeUnit.SECONDS); // socket timeout

        try {
            Request request = new Request.Builder().url(new URL(url))
                    //               .header("User-Agent", "OkHttp Headers.java")
                    //               .addHeader("Accept", "application/json; q=0.5")
                    .build();

            Response response = client.newCall(request).execute();
            if (!response.isSuccessful()) {
                String debugMessage = "doHttpGet - OkHttp.Response is not successful - " + response.message() + " ("
                        + response.code() + ")";
                throw new AppStarterException(AppStarterException.ERROR_SERVER, debugMessage);
            }
            ret = response.body().string();
        } catch (IOException e) {
            throw new AppStarterException(e, AppStarterException.ERROR_NETWORK_GET);
        }

        return ret;
    }

    public static String doHttpPost(String url, List<NameValuePair> params) throws AppStarterException {
        if (BuildConfig.DEBUG) {
            Log.d(TAG, "doHttpPost - url: " + debugRequest(url, params));
        }

        String ret = "";

        OkHttpClient client = new OkHttpClient();
        client.setConnectTimeout(15, TimeUnit.SECONDS); // connect timeout
        client.setReadTimeout(15, TimeUnit.SECONDS); // socket timeout

        FormEncodingBuilder builder = new FormEncodingBuilder();
        for (NameValuePair nvp : params) {
            builder.add(nvp.getName(), nvp.getValue());
        }
        RequestBody formBody = builder.build();

        try {
            Request request = new Request.Builder().url(new URL(url))
                    //               .header("User-Agent", "OkHttp Headers.java")
                    //               .addHeader("Accept", "application/json; q=0.5")
                    .post(formBody).build();

            Response response = client.newCall(request).execute();
            if (!response.isSuccessful()) {
                String debugMessage = "doHttpPost - OkHttp.Response is not successful - " + response.message()
                        + " (" + response.code() + ")";
                throw new AppStarterException(AppStarterException.ERROR_SERVER, debugMessage);
            }
            ret = response.body().string();
        } catch (IOException e) {
            throw new AppStarterException(e, AppStarterException.ERROR_NETWORK_GET);
        }

        return ret;
    }

    private static String debugRequest(String url, List<NameValuePair> params) {
        StringBuilder sb = new StringBuilder();
        sb.append(url);

        if (params != null && params.size() > 0) {
            boolean first = true;
            for (NameValuePair pair : params) {
                sb.append(first ? "?" : "&");
                sb.append(pair.getName());
                sb.append("=");
                sb.append(pair.getValue());
                first = false;
            }
        }

        return sb.toString();
    }

    //   /**
    //    * Simple network connection check.
    //    * 
    //    * <h1>Warning !</h1> The network the device is connected to may not have
    //    * access to the Internet! i.e. A user without a data plan can be connected
    //    * to a 3G network to make phone calls. If he wants to access the Internet,
    //    * his provider will block the request and display a custom web page. HTTP
    //    * response status code will be 200 (OK) but you will not get the data you
    //    * expect.
    //    */
    //   private static boolean isNetworkConnected() {
    //      final ConnectivityManager cm = (ConnectivityManager) AppStarterApplication.getAppContext().getSystemService(Context.CONNECTIVITY_SERVICE);
    //      final NetworkInfo networkInfo = cm.getActiveNetworkInfo();
    //      return networkInfo != null && networkInfo.isConnected();
    //   }
}