cz.mmsparams.api.http.HttpPostUtil Maven / Gradle / Ivy

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Common library for MmsParams system
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package cz.mmsparams.api.http;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

import javax.annotation.Nonnull;

import cz.mmsparams.api.logging.APILoggerFactory;
import cz.mmsparams.api.logging.ApiLogFacade;
import cz.mmsparams.api.logging.ILogger;
import cz.mmsparams.api.utils.LogUtil;

public class HttpPostUtil
{
    private static final ILogger LOGGER = APILoggerFactory.getLogger(HttpPostUtil.class);

    private HttpPostUtil()
    {
    }

    @Nonnull
    public static TaskResult postData(String urlAddress, String data)
    {
        HttpURLConnection conn = null;
        try
        {
            final URL url = new URL(urlAddress);
            conn = (HttpURLConnection) url.openConnection();

            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
            conn.setRequestProperty("Accept", "application/json");
            conn.setDoOutput(true);
            conn.setDoInput(true);

            int timeout = 5000;

            conn.setConnectTimeout(timeout);
            conn.setReadTimeout(timeout);

            DataOutputStream os = new DataOutputStream(conn.getOutputStream());

            os.writeBytes(data);
            os.flush();

            final int status = conn.getResponseCode();

            switch (status)
            {
                case 200:
                case 201:
                    BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
                    StringBuilder sb = new StringBuilder();
                    String line;
                    while ((line = br.readLine()) != null)
                    {
                        sb.append(line).append(LogUtil.NEW_LINE);
                    }
                    br.close();
                    return new TaskResult<>(sb.toString());
                default:
                    return new TaskResult<>(new Exception("Invalid status code: " + status));
            }
        }
        catch (Exception e)
        {
            ApiLogFacade.logEx(LOGGER, "postData", e);
            return new TaskResult<>(e);
        }
        finally
        {
            if (conn != null)
            {
                try
                {
                    conn.disconnect();
                }
                catch (Exception ex)
                {
                    ApiLogFacade.logEx(LOGGER, "getDataFromUrl", ex);
                }
            }
        }
    }
}