NetworkUtils.java

package com.sromku.bugsnag.utils;

import java.io.IOException;
import java.lang.reflect.Type;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class NetworkUtils {

	public static <T> T get(String authToken, String url, Class<T> cls) {
		CloseableHttpClient httpclient = HttpClients.createDefault();
		try {
			HttpGet httpget = new HttpGet(url);
			httpget.setHeader("Authorization", "token " + authToken);
			ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
				public String handleResponse(final HttpResponse response) throws ClientProtocolException, IOException {
					HttpEntity entity = response.getEntity();
					return entity != null ? EntityUtils.toString(entity) : null;
				}
			};
			String responseBody = httpclient.execute(httpget, responseHandler);
			return JsonUtils.fromJson(responseBody, cls);
		}
		catch (ClientProtocolException e) {
			e.printStackTrace();
		}
		catch (IOException e) {
			e.printStackTrace();
		}
		finally {
			try {
				httpclient.close();
			}
			catch (IOException e) {
				e.printStackTrace();
			}
		}
		return null;
	}

	public static <T> List<T> get(String authToken, String url, Type projectsType) {
		CloseableHttpClient httpclient = HttpClients.createDefault();
		try {
			HttpGet httpget = new HttpGet(url);
			httpget.setHeader("Authorization", "token " + authToken);
			ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
				public String handleResponse(final HttpResponse response) throws ClientProtocolException, IOException {
					HttpEntity entity = response.getEntity();
					return entity != null ? EntityUtils.toString(entity) : null;
				}
			};
			String responseBody = httpclient.execute(httpget, responseHandler);
			return JsonUtils.fromJson(responseBody, projectsType);
		}
		catch (ClientProtocolException e) {
			e.printStackTrace();
		}
		catch (IOException e) {
			e.printStackTrace();
		}
		finally {
			try {
				httpclient.close();
			}
			catch (IOException e) {
				e.printStackTrace();
			}
		}
		return null;
	}

}