Example usage for java.net HttpURLConnection getInputStream

Introduction

In this page you can find the example usage for java.net HttpURLConnection getInputStream.

Prototype

public InputStream getInputStream() throws IOException 

Source Link

Document

Returns an input stream that reads from this open connection.

Usage

From source file:com.cyphermessenger.client.SyncRequest.java

public static void userLogout(CypherSession session) throws IOException, APIErrorException {
    HttpURLConnection conn = doRequest("logout", session, null);

    if (conn.getResponseCode() != 200) {
        throw new IOException("Server error");
    }//w  w w  . ja  v a2  s . c  o m

    InputStream in = conn.getInputStream();
    JsonNode node = MAPPER.readTree(in);
    conn.disconnect();
    int statusCode = node.get("status").asInt();
    if (statusCode != StatusCode.OK) {
        throw new APIErrorException(statusCode);
    }
}

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From source file:com.mycompany.craftdemo.utility.java

public static JSONObject getAPIData(String apiURL) {
    try {//from w ww  .j a  v  a2 s .  c  om
        URL url = new URL(apiURL);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Accept", "application/json");

        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }

        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
        StringBuilder sb = new StringBuilder();
        String output;
        while ((output = br.readLine()) != null)
            sb.append(output);

        String res = sb.toString();
        JSONParser parser = new JSONParser();
        JSONObject json = null;
        try {
            json = (JSONObject) parser.parse(res);
        } catch (ParseException ex) {
            ex.printStackTrace();
        }
        //resturn api data in json format
        return json;

    } catch (MalformedURLException e) {

        e.printStackTrace();

    } catch (IOException e) {

        e.printStackTrace();

    }
    return null;
}

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From source file:Main.java

/**
 * Connect to an HTTP URL and return the response as a string.
 * //from  w ww  .j ava2 s .c  om
 * Note that the HTTP method override is used on non-GET requests. (i.e.
 * requests are made as "POST" with method specified in the body).
 * 
 * @param url - the resource to open: must be a welformed URL
 * @param method - the HTTP method to use ("GET", "POST", etc.)
 * @param params - the query parameter for the URL (e.g. access_token=foo)
 * @return the URL contents as a String
 * @throws MalformedURLException - if the URL format is invalid
 * @throws IOException - if a network problem occurs
 */
public static String openUrl(String url, String method, Bundle params)
        throws MalformedURLException, IOException {
    if (method.equals("GET")) {
        url = url + "?" + encodeUrl(params);
    }

    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestProperty("User-Agent",
            System.getProperties().getProperty("http.agent") + " FacebookAndroidSDK");
    if (!method.equals("GET")) {
        // use method override
        params.putString("method", method);
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.getOutputStream().write(encodeUrl(params).getBytes("UTF-8"));
    }

    String response = "";
    try {
        response = read(conn.getInputStream());
    } catch (FileNotFoundException e) {
        // Error Stream contains JSON that we can parse to a FB error
        response = read(conn.getErrorStream());
    }

    return response;
}

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From source file:dk.nsi.minlog.test.utils.TestHelper.java

public static String sendRequest(String url, String action, String docXml, boolean failOnError)
        throws IOException, ServiceException {
    URL u = new URL(url);
    HttpURLConnection uc = (HttpURLConnection) u.openConnection();
    uc.setDoOutput(true);//from w  w w .  ja  va  2s .c  om
    uc.setDoInput(true);
    uc.setRequestMethod("POST");
    uc.setRequestProperty("SOAPAction", "\"" + action + "\"");
    uc.setRequestProperty("Content-Type", "text/xml; charset=utf-8;");
    OutputStream os = uc.getOutputStream();

    IOUtils.write(docXml, os, "UTF-8");
    os.flush();
    os.close();

    InputStream is;
    if (uc.getResponseCode() != 200) {
        is = uc.getErrorStream();
    } else {
        is = uc.getInputStream();
    }
    String res = IOUtils.toString(is);

    is.close();
    if (uc.getResponseCode() != 200 && (uc.getResponseCode() != 500 || failOnError)) {
        throw new ServiceException(res);
    }
    uc.disconnect();

    return res;
}

---

From source file:io.github.retz.executor.FileManager.java

private static void fetchHTTPFile(String file, String dest) throws IOException {
    URL url = new URL(file);

    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setRequestMethod("GET");

    conn.setDoOutput(true);//from w w  w . j av a2 s  .c  o m
    java.nio.file.Path path = Paths.get(file).getFileName();
    if (path == null) {
        throw new FileNotFoundException(file);
    }
    String filename = path.toString();
    InputStream input = null;
    try (FileOutputStream output = new FileOutputStream(dest + "/" + filename)) {
        input = conn.getInputStream();
        byte[] buffer = new byte[65536];
        int bytesRead = 0;
        while ((bytesRead = input.read(buffer)) != -1) {
            output.write(buffer, 0, bytesRead);
        }
    } catch (IOException e) {
        LOG.debug(e.getMessage());
        throw e;
    } finally {
        if (input != null)
            input.close();
    }
    conn.disconnect();
    LOG.info("Download finished: {}", file);
}

---

From source file:com.dycody.android.idealnote.utils.GeocodeHelper.java

public static List<String> autocomplete(String input) {
    String MAPS_API_KEY = BuildConfig.MAPS_API_KEY;
    if (TextUtils.isEmpty(MAPS_API_KEY)) {
        return Collections.emptyList();
    }//ww  w.  j a  va 2s.  co m
    ArrayList<String> resultList = null;

    HttpURLConnection conn = null;
    InputStreamReader in = null;
    StringBuilder jsonResults = new StringBuilder();
    try {
        URL url = new URL(PLACES_API_BASE + TYPE_AUTOCOMPLETE + OUT_JSON + "?key=" + MAPS_API_KEY + "&input="
                + URLEncoder.encode(input, "utf8"));
        conn = (HttpURLConnection) url.openConnection();
        in = new InputStreamReader(conn.getInputStream());
        // Load the results into a StringBuilder
        int read;
        char[] buff = new char[1024];
        while ((read = in.read(buff)) != -1) {
            jsonResults.append(buff, 0, read);
        }
    } catch (MalformedURLException e) {
        Log.e(Constants.TAG, "Error processing Places API URL");
        return null;
    } catch (IOException e) {
        Log.e(Constants.TAG, "Error connecting to Places API");
        return null;
    } finally {
        if (conn != null) {
            conn.disconnect();
        }
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
                Log.e(Constants.TAG, "Error closing address autocompletion InputStream");
            }
        }
    }

    try {
        // Create a JSON object hierarchy from the results
        JSONObject jsonObj = new JSONObject(jsonResults.toString());
        JSONArray predsJsonArray = jsonObj.getJSONArray("predictions");
        // Extract the Place descriptions from the results
        resultList = new ArrayList<>(predsJsonArray.length());
        for (int i = 0; i < predsJsonArray.length(); i++) {
            resultList.add(predsJsonArray.getJSONObject(i).getString("description"));
        }
    } catch (JSONException e) {
        Log.e(Constants.TAG, "Cannot process JSON results", e);
    } finally {
        if (conn != null) {
            conn.disconnect();
        }
        SystemHelper.closeCloseable(in);
    }
    return resultList;
}

---

From source file:com.dmsl.anyplace.utils.NetworkUtils.java

public static InputStream downloadHttp(String urlS) throws URISyntaxException, IOException {
    InputStream is = null;/*from w w  w  .java2s .c o m*/

    URL url = new URL(encodeURL(urlS));

    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setReadTimeout(10000);
    conn.setConnectTimeout(15000);
    conn.setRequestMethod("GET");
    conn.setDoInput(true);

    conn.connect();

    int response = conn.getResponseCode();
    if (response == 200) {
        is = conn.getInputStream();
    }

    return is;
}

---

From source file:com.cyphermessenger.client.SyncRequest.java

private static JsonNode pullUpdate(CypherSession session, CypherUser contact, String action, Boolean since,
        Long time) throws IOException, APIErrorException {
    String timeBoundary = "since";
    if (since != null && since == UNTIL) {
        timeBoundary = "until";
    }//from   w ww .  j ava2s  .  c  o  m
    HashMap<String, String> pairs = new HashMap<>(3);
    pairs.put("action", action);
    if (contact != null) {
        pairs.put("contactID", contact.getUserID().toString());
    }
    if (time != null) {
        pairs.put(timeBoundary, time.toString());
    }
    HttpURLConnection conn = doRequest("pull", session, pairs);
    if (conn.getResponseCode() != 200) {
        throw new IOException("Server error");
    }

    InputStream in = conn.getInputStream();
    JsonNode node = MAPPER.readTree(in);
    conn.disconnect();
    int statusCode = node.get("status").asInt();
    if (statusCode == StatusCode.OK) {
        return node;
    } else {
        throw new APIErrorException(statusCode);
    }
}

---

From source file:com.appdynamics.common.RESTClient.java

public static void sendGet(String urlString, String apiKey) {

    try {//from w ww  . jav a  2s .  c o  m

        URL url = new URL(urlString);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Accept", "application/json");
        conn.setRequestProperty("Authorization",
                "Basic " + new String(Base64.encodeBase64((apiKey).getBytes())));

        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }

        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));

        String output;
        logger.info("Output from Server .... \n");
        while ((output = br.readLine()) != null) {
            logger.info(output);
        }

        conn.disconnect();

    } catch (MalformedURLException e) {

        e.printStackTrace();

    } catch (IOException e) {

        e.printStackTrace();

    }

}

---

From source file:net.andylizi.colormotd.anim.utils.AttributionUtil.java

private static String sendGet(String url, String param, String charset) {
    StringBuilder result = new StringBuilder(1024);
    BufferedReader in = null;//from w  w  w.  jav  a 2s. c o  m
    try {
        String urlNameString = url + "?" + param;
        URL realUrl = new URL(urlNameString);
        HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
        conn.setRequestProperty("User-Agent", Main.getInstance().getDescription().getFullName());
        conn.setRequestProperty("Accept-Charset", charset);
        conn.setUseCaches(true);
        conn.setConnectTimeout(2000);
        conn.setReadTimeout(3000);
        conn.connect();
        in = new BufferedReader(new InputStreamReader(conn.getInputStream(), Charset.forName(charset)), 1024);
        String line;
        while ((line = in.readLine()) != null) {
            result.append(line);
        }
        conn.disconnect();
    } catch (Exception e) {
    } finally {
        try {
            if (in != null) {
                in.close();
            }
        } catch (Exception e2) {
        }
    }
    return result.toString();
}

---

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