Example usage for java.io OutputStreamWriter flush

List of usage examples for java.io OutputStreamWriter flush

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Introduction

In this page you can find the example usage for java.io OutputStreamWriter flush.

Prototype

public void flush() throws IOException

Source Link

Document

Flushes the stream.

Usage

From source file:org.benjp.listener.ServerBootstrap.java

private static String postServer(String serviceUri, String params) {
    String serviceUrl = getServerBase() + PropertyManager.getProperty(PropertyManager.PROPERTY_CHAT_SERVER_URL)
            + "/" + serviceUri;
    String allParams = "passphrase=" + PropertyManager.getProperty(PropertyManager.PROPERTY_PASSPHRASE) + "&"
            + params;/*  ww w  .  ja v a  2s .  co  m*/
    String body = "";
    OutputStreamWriter writer = null;
    try {
        URL url = new URL(serviceUrl);
        URLConnection con = url.openConnection();
        con.setDoOutput(true);

        //envoi de la requte
        writer = new OutputStreamWriter(con.getOutputStream());
        writer.write(allParams);
        writer.flush();

        InputStream in = con.getInputStream();
        String encoding = con.getContentEncoding();
        encoding = encoding == null ? "UTF-8" : encoding;
        body = IOUtils.toString(in, encoding);
        if ("null".equals(body))
            body = null;

    } catch (MalformedURLException e) {
        e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
    } catch (IOException e) {
        e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.

    } finally {
        try {
            writer.close();
        } catch (Exception e) {
        }
    }
    return body;
}

From source file:org.exoplatform.chat.listener.ServerBootstrap.java

private static String postServer(String serviceUri, String params) {
    String serviceUrl = getServerBase() + PropertyManager.getProperty(PropertyManager.PROPERTY_CHAT_SERVER_URL)
            + "/" + serviceUri;
    String allParams = "passphrase=" + PropertyManager.getProperty(PropertyManager.PROPERTY_PASSPHRASE) + "&"
            + params;/*  w  w w .ja  v a2  s .  co m*/
    String body = "";
    OutputStreamWriter writer = null;
    try {
        URL url = new URL(serviceUrl);
        URLConnection con = url.openConnection();
        con.setDoOutput(true);

        //envoi de la requte
        writer = new OutputStreamWriter(con.getOutputStream());
        writer.write(allParams);
        writer.flush();

        InputStream in = con.getInputStream();
        String encoding = con.getContentEncoding();
        encoding = encoding == null ? "UTF-8" : encoding;
        body = IOUtils.toString(in, encoding);
        if ("null".equals(body))
            body = null;

    } catch (MalformedURLException e) {
        LOG.warning(e.getMessage());
    } catch (IOException e) {
        LOG.warning(e.getMessage());
    } finally {
        try {
            writer.close();
        } catch (Exception e) {
            LOG.warning(e.getMessage());
        }
    }
    return body;
}

From source file:ch.ethz.epics.export.GoogleImageSitemap.java

/**
 * Writes footer and closes sitemap file.
 *//*from   w ww .j a  va 2s. c  o  m*/
public static void writeFooter(OutputStreamWriter out) throws Exception {
    String footer = "\n</urlset>";
    out.write(footer);
    out.flush();
}

From source file:com.beyondb.geocoding.BaiduAPI.java

public static Map<String, String> testPost(String x, String y) throws IOException {
    URL url = new URL("http://api.map.baidu.com/geocoder?" + ak + "="
            + "&callback=renderReverse&location=" + x + "," + y + "&output=json");
    URLConnection connection = url.openConnection();
    /**//from w w  w .  j  ava  2  s  . co  m
     * ??URLConnection?Web
     * URLConnection???Web???
     */
    connection.setDoOutput(true);
    OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "utf-8");
    //        remember to clean up
    out.flush();
    out.close();
    //        ?????
    String res;
    InputStream l_urlStream;
    l_urlStream = connection.getInputStream();
    BufferedReader in = new BufferedReader(new InputStreamReader(l_urlStream, "UTF-8"));
    StringBuilder sb = new StringBuilder("");
    while ((res = in.readLine()) != null) {
        sb.append(res.trim());
    }
    String str = sb.toString();
    System.out.println(str);
    Map<String, String> map = null;
    if (StringUtils.isNotEmpty(str)) {
        int addStart = str.indexOf("formatted_address\":");
        int addEnd = str.indexOf("\",\"business");
        if (addStart > 0 && addEnd > 0) {
            String address = str.substring(addStart + 20, addEnd);
            map = new HashMap<String, String>();
            map.put("address", address);
            return map;
        }
    }

    return null;

}

From source file:com.example.cmput301.model.WebService.java

/**
 * Sets up http connection to the web server and returns the connection.
 * @param conn URLConnection//from ww w.  j a  v a2 s . com
 * @param data string to send to web service.
 * @return String response from web service.
 * @throws IOException
 */
private static String getHttpResponse(URLConnection conn, String data) throws IOException {
    OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
    wr.write(data);
    wr.flush();
    wr.close();

    BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
    String line, httpResponse = "";
    while ((line = rd.readLine()) != null) {
        // Process line...
        httpResponse += line;
    }
    rd.close();
    return httpResponse;
}

From source file:net.mceoin.cominghome.api.NestUtil.java

/**
 * Make HTTP/JSON call to Nest and set away status.
 *
 * @param access_token OAuth token to allow access to Nest
 * @param structure_id ID of structure with thermostat
 * @param away_status Either "home" or "away"
 * @return Equal to "Success" if successful, otherwise it contains a hint on the error.
 *///from  w ww . java 2  s.c  om
public static String tellNestAwayStatusCall(String access_token, String structure_id, String away_status) {

    String urlString = "https://developer-api.nest.com/structures/" + structure_id + "/away?auth="
            + access_token;
    log.info("url=" + urlString);

    StringBuilder builder = new StringBuilder();
    boolean error = false;
    String errorResult = "";

    HttpURLConnection urlConnection = null;
    try {
        URL url = new URL(urlString);
        urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setRequestProperty("User-Agent", "ComingHomeBackend/1.0");
        urlConnection.setRequestMethod("PUT");
        urlConnection.setDoOutput(true);
        urlConnection.setDoInput(true);
        urlConnection.setChunkedStreamingMode(0);

        urlConnection.setRequestProperty("Content-Type", "application/json; charset=utf8");

        String payload = "\"" + away_status + "\"";

        OutputStreamWriter wr = new OutputStreamWriter(urlConnection.getOutputStream());
        wr.write(payload);
        wr.flush();
        log.info(payload);

        boolean redirect = false;

        // normally, 3xx is redirect
        int status = urlConnection.getResponseCode();
        if (status != HttpURLConnection.HTTP_OK) {
            if (status == HttpURLConnection.HTTP_MOVED_TEMP || status == HttpURLConnection.HTTP_MOVED_PERM
                    || status == 307 // Temporary redirect
                    || status == HttpURLConnection.HTTP_SEE_OTHER)
                redirect = true;
        }

        //            System.out.println("Response Code ... " + status);

        if (redirect) {

            // get redirect url from "location" header field
            String newUrl = urlConnection.getHeaderField("Location");

            // open the new connnection again
            urlConnection = (HttpURLConnection) new URL(newUrl).openConnection();
            urlConnection.setRequestMethod("PUT");
            urlConnection.setDoOutput(true);
            urlConnection.setDoInput(true);
            urlConnection.setChunkedStreamingMode(0);
            urlConnection.setRequestProperty("Content-Type", "application/json; charset=utf8");
            urlConnection.setRequestProperty("Accept", "application/json");

            //                System.out.println("Redirect to URL : " + newUrl);

            wr = new OutputStreamWriter(urlConnection.getOutputStream());
            wr.write(payload);
            wr.flush();

        }

        int statusCode = urlConnection.getResponseCode();

        log.info("statusCode=" + statusCode);
        if ((statusCode == HttpURLConnection.HTTP_OK)) {
            error = false;
        } else if (statusCode == HttpURLConnection.HTTP_UNAUTHORIZED) {
            // bad auth
            error = true;
            errorResult = "Unauthorized";
        } else if (statusCode == HttpURLConnection.HTTP_BAD_REQUEST) {
            error = true;
            InputStream response;
            response = urlConnection.getErrorStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(response));
            String line;
            while ((line = reader.readLine()) != null) {
                builder.append(line);
            }
            log.info("response=" + builder.toString());
            JSONObject object = new JSONObject(builder.toString());

            Iterator keys = object.keys();
            while (keys.hasNext()) {
                String key = (String) keys.next();
                if (key.equals("error")) {
                    // error = Internal Error on bad structure_id
                    errorResult = object.getString("error");
                    log.info("errorResult=" + errorResult);
                }
            }
        } else {
            error = true;
            errorResult = Integer.toString(statusCode);
        }

    } catch (IOException e) {
        error = true;
        errorResult = e.getLocalizedMessage();
        log.warning("IOException: " + errorResult);
    } catch (Exception e) {
        error = true;
        errorResult = e.getLocalizedMessage();
        log.warning("Exception: " + errorResult);
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
    if (error) {
        return "Error: " + errorResult;
    } else {
        return "Success";
    }
}

From source file:com.beyondb.geocoding.BaiduAPI.java

public static String getPointByAddress(String address, String city) throws IOException {
    String resultPoint = "";
    try {//from www.j a v  a  2s  .  com
        URL url = new URL("http://api.map.baidu.com/geocoder/v2/?ak=" + ak + "&output=xml&address=" + address
                + "&" + city);

        URLConnection connection = url.openConnection();
        /**
         * ??URLConnection?Web
         * URLConnection???Web???
         */
        connection.setDoOutput(true);
        OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "utf-8");
        //        remember to clean up
        out.flush();
        out.close();
        //        ?????

        String res;
        InputStream l_urlStream;
        l_urlStream = connection.getInputStream();
        if (l_urlStream != null) {
            BufferedReader in = new BufferedReader(new InputStreamReader(l_urlStream, "UTF-8"));
            StringBuilder sb = new StringBuilder("");
            while ((res = in.readLine()) != null) {
                sb.append(res.trim());
            }
            String str = sb.toString();
            System.out.println(str);
            Document doc = DocumentHelper.parseText(str); // XML
            Element rootElt = doc.getRootElement(); // ?
            //            System.out.println("" + rootElt.getName()); // ??
            Element resultElem = rootElt.element("result");
            if (resultElem.hasContent()) {
                Element locationElem = resultElem.element("location");
                Element latElem = locationElem.element("lat");
                //            System.out.print("lat:"+latElem.getTextTrim()+",");
                Element lngElem = locationElem.element("lng");
                //            System.out.println("lng:"+lngElem.getTextTrim());
                resultPoint = lngElem.getTextTrim() + "," + latElem.getTextTrim();
            } else {
                System.out.println("can't compute the coor");
                resultPoint = " , ";
            }
        } else {
            resultPoint = " , ";
        }

    } catch (DocumentException ex) {
        Logger.getLogger(BaiduAPI.class.getName()).log(Level.SEVERE, null, ex);
    }
    return resultPoint;
}

From source file:com.createtank.payments.coinbase.RequestClient.java

private static JsonObject call(CoinbaseApi api, String method, RequestVerb verb, JsonObject json, boolean retry,
        String accessToken) throws IOException, UnsupportedRequestVerbException {

    if (verb == RequestVerb.DELETE || verb == RequestVerb.GET) {
        throw new UnsupportedRequestVerbException();
    }/*from   w  w w . ja  v a2 s.  c  o m*/
    if (api.allowSecure()) {

        HttpClient client = HttpClientBuilder.create().build();
        String url = BASE_URL + method;
        HttpUriRequest request;

        switch (verb) {
        case POST:
            request = new HttpPost(url);
            break;
        case PUT:
            request = new HttpPut(url);
            break;
        default:
            throw new RuntimeException("RequestVerb not implemented: " + verb);
        }

        ((HttpEntityEnclosingRequestBase) request)
                .setEntity(new StringEntity(json.toString(), ContentType.APPLICATION_JSON));

        if (accessToken != null)
            request.addHeader("Authorization", String.format("Bearer %s", accessToken));

        request.addHeader("Content-Type", "application/json");
        HttpResponse response = client.execute(request);
        int code = response.getStatusLine().getStatusCode();

        if (code == 401) {
            if (retry) {
                api.refreshAccessToken();
                call(api, method, verb, json, false, api.getAccessToken());
            } else {
                throw new IOException("Account is no longer valid");
            }
        } else if (code != 200) {
            throw new IOException("HTTP response " + code + " to request " + method);
        }

        String responseString = EntityUtils.toString(response.getEntity());
        if (responseString.startsWith("[")) {
            // Is an array
            responseString = "{response:" + responseString + "}";
        }

        JsonParser parser = new JsonParser();
        JsonObject resp = (JsonObject) parser.parse(responseString);
        System.out.println(resp.toString());
        return resp;
    }

    String url = BASE_URL + method;

    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestMethod(verb.name());
    conn.addRequestProperty("Content-Type", "application/json");

    if (accessToken != null)
        conn.setRequestProperty("Authorization", String.format("Bearer %s", accessToken));

    conn.setDoOutput(true);
    OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
    writer.write(json.toString());
    writer.flush();
    writer.close();

    int code = conn.getResponseCode();
    if (code == 401) {

        if (retry) {
            api.refreshAccessToken();
            return call(api, method, verb, json, false, api.getAccessToken());
        } else {
            throw new IOException("Account is no longer valid");
        }

    } else if (code != 200) {
        throw new IOException("HTTP response " + code + " to request " + method);
    }

    String responseString = getResponseBody(conn.getInputStream());
    if (responseString.startsWith("[")) {
        responseString = "{response:" + responseString + "}";
    }

    JsonParser parser = new JsonParser();
    return (JsonObject) parser.parse(responseString);
}

From source file:com.gmobi.poponews.util.HttpHelper.java

private static Response doRequest(String url, Object raw, int method) {
    disableSslCheck();//from   www .ja va2 s .  co m
    boolean isJson = raw instanceof JSONObject;
    String body = raw == null ? null : raw.toString();
    Response response = new Response();
    HttpURLConnection connection = null;
    try {
        URL httpURL = new URL(url);
        connection = (HttpURLConnection) httpURL.openConnection();
        connection.setConnectTimeout(15000);
        connection.setReadTimeout(30000);
        connection.setUseCaches(false);
        if (method == HTTP_POST)
            connection.setRequestMethod("POST");
        if (body != null) {
            if (isJson) {
                connection.setRequestProperty("Accept", "application/json");
                connection.setRequestProperty("Content-Type", "application/json");
            }
            OutputStream os = connection.getOutputStream();
            OutputStreamWriter osw = new OutputStreamWriter(os);
            osw.write(body);
            osw.flush();
            osw.close();
        }
        InputStream in = connection.getInputStream();
        response.setBody(FileHelper.readText(in, "UTF-8"));
        response.setStatusCode(connection.getResponseCode());
        in.close();
        connection.disconnect();
        connection = null;
    } catch (Exception e) {
        Logger.error(e);
        try {
            if ((connection != null) && (response.getBody() == null) && (connection.getErrorStream() != null)) {
                response.setBody(FileHelper.readText(connection.getErrorStream(), "UTF-8"));
            }
        } catch (Exception ex) {
            Logger.error(ex);
        }
    }
    return response;
}

From source file:com.createtank.payments.coinbase.RequestClient.java

private static JsonObject call(CoinbaseApi api, String method, RequestVerb verb, Map<String, String> params,
        boolean retry, String accessToken) throws IOException {
    if (api.allowSecure()) {

        HttpClient client = HttpClientBuilder.create().build();
        String url = BASE_URL + method;
        HttpUriRequest request = null;/*w  ww.j ava2s .  c  om*/

        if (verb == RequestVerb.POST || verb == RequestVerb.PUT) {
            switch (verb) {
            case POST:
                request = new HttpPost(url);
                break;
            case PUT:
                request = new HttpPut(url);
                break;
            default:
                throw new RuntimeException("RequestVerb not implemented: " + verb);
            }

            List<BasicNameValuePair> paramsBody = new ArrayList<BasicNameValuePair>();

            if (params != null) {
                List<BasicNameValuePair> convertedParams = convertParams(params);
                paramsBody.addAll(convertedParams);
            }

            ((HttpEntityEnclosingRequestBase) request).setEntity(new UrlEncodedFormEntity(paramsBody, "UTF-8"));
        } else {
            if (params != null) {
                url = url + "?" + createRequestParams(params);
            }

            if (verb == RequestVerb.GET) {
                request = new HttpGet(url);
            } else if (verb == RequestVerb.DELETE) {
                request = new HttpDelete(url);
            }
        }
        if (request == null)
            return null;

        if (accessToken != null)
            request.addHeader("Authorization", String.format("Bearer %s", accessToken));
        System.out.println("auth header: " + request.getFirstHeader("Authorization"));
        HttpResponse response = client.execute(request);
        int code = response.getStatusLine().getStatusCode();

        if (code == 401) {
            if (retry) {
                api.refreshAccessToken();
                call(api, method, verb, params, false, api.getAccessToken());
            } else {
                throw new IOException("Account is no longer valid");
            }
        } else if (code != 200) {
            throw new IOException("HTTP response " + code + " to request " + method);
        }

        String responseString = EntityUtils.toString(response.getEntity());
        if (responseString.startsWith("[")) {
            // Is an array
            responseString = "{response:" + responseString + "}";
        }

        JsonParser parser = new JsonParser();
        JsonObject resp = (JsonObject) parser.parse(responseString);
        System.out.println(resp.toString());
        return resp;
    }

    String paramStr = createRequestParams(params);
    String url = BASE_URL + method;

    if (paramStr != null && verb == RequestVerb.GET || verb == RequestVerb.DELETE)
        url += "?" + paramStr;

    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestMethod(verb.name());

    if (accessToken != null)
        conn.setRequestProperty("Authorization", String.format("Bearer %s", accessToken));

    if (verb != RequestVerb.GET && verb != RequestVerb.DELETE && paramStr != null) {
        conn.setDoOutput(true);
        OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
        writer.write(paramStr);
        writer.flush();
        writer.close();
    }

    int code = conn.getResponseCode();
    if (code == 401) {

        if (retry) {
            api.refreshAccessToken();
            return call(api, method, verb, params, false, api.getAccessToken());
        } else {
            throw new IOException("Account is no longer valid");
        }

    } else if (code != 200) {
        throw new IOException("HTTP response " + code + " to request " + method);
    }

    String responseString = getResponseBody(conn.getInputStream());
    if (responseString.startsWith("[")) {
        responseString = "{response:" + responseString + "}";
    }

    JsonParser parser = new JsonParser();
    return (JsonObject) parser.parse(responseString);
}