Example usage for java.net URLConnection getOutputStream

Introduction

In this page you can find the example usage for java.net URLConnection getOutputStream.

Prototype

public OutputStream getOutputStream() throws IOException 

Source Link

Document

Returns an output stream that writes to this connection.

Usage

From source file:com.google.wave.api.AbstractRobotServlet.java

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
    this.req = req;
    // RobotMessageBundleImpl events = deserializeEvents(req);
    //    /*from   ww  w .  j av  a2s  . com*/
    // // Log All Events
    // for (Event event : events.getEvents()) {
    // log(event.getType().toString() + " [" +
    // event.getWavelet().getWaveId() + " " +
    // event.getWavelet().getWaveletId());
    // try {
    // log(" " + event.getBlip().getBlipId() + "] [" +
    // event.getBlip().getDocument().getText().replace("\n", "\\n") + "]");
    // } catch(NullPointerException npx) {
    // log("] [null]");
    // }
    // }

    // processEvents(events);
    // events.getOperations().setVersion(getVersion());
    // serializeOperations(events.getOperations(), resp);

    String events = getRequestBody(req);
    log("Events: " + events);

    JSONSerializer serializer = getJSONSerializer();
    EventMessageBundle eventsBundle = null;
    String proxyingFor = "";

    try {
        JSONObject jsonObject = new JSONObject(events);
        proxyingFor = jsonObject.getString("proxyingFor");
    } catch (JSONException jsonx) {
        jsonx.printStackTrace();
    }

    log(proxyingFor);

    String port = "";
    try {
        port = new JSONObject(proxyingFor).getString("port");
    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    String data = "events=" + URLEncoder.encode(events, "UTF-8");
    // Send the request

    log("port = " + port);

    URL url = new URL("http://jem.thewe.net/" + port + "/wave");
    URLConnection conn = url.openConnection();
    log("no timeout");
    //conn.setReadTimeout(10000);
    //conn.setConnectTimeout(10000);
    conn.setDoOutput(true);
    OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());

    // write parameters
    log("Sending: " + data);
    writer.write(data);

    writer.flush();

    // Get the response
    StringBuffer answer = new StringBuffer();
    BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
    String line;
    while ((line = reader.readLine()) != null) {
        answer.append(line);
    }

    writer.close();
    reader.close();

    log("Answer: " + answer.toString());

    serializeOperations(answer.toString(), resp);
}

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From source file:com.linkedin.pinot.tools.perf.PerfBenchmarkDriver.java

public JSONObject postQuery(String query, String optimizationFlags) throws Exception {
    JSONObject requestJson = new JSONObject();
    requestJson.put("pql", query);

    if (optimizationFlags != null && !optimizationFlags.isEmpty()) {
        requestJson.put("debugOptions", "optimizationFlags=" + optimizationFlags);
    }/* w  w w  .ja v  a2  s . c  om*/

    long start = System.currentTimeMillis();
    URLConnection conn = new URL(_brokerBaseApiUrl + "/query").openConnection();
    conn.setDoOutput(true);

    try (BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(conn.getOutputStream(), "UTF-8"))) {
        String requestString = requestJson.toString();
        writer.write(requestString);
        writer.flush();

        StringBuilder stringBuilder = new StringBuilder();
        try (BufferedReader reader = new BufferedReader(
                new InputStreamReader(conn.getInputStream(), "UTF-8"))) {
            String line;
            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line);
            }
        }

        long totalTime = System.currentTimeMillis() - start;
        String responseString = stringBuilder.toString();
        JSONObject responseJson = new JSONObject(responseString);
        responseJson.put("totalTime", totalTime);

        if (_verbose && (responseJson.getLong("numDocsScanned") > 0)) {
            LOGGER.info("requestString: {}", requestString);
            LOGGER.info("responseString: {}", responseString);
        }
        return responseJson;
    }
}

---

From source file:net.solarnetwork.node.support.JsonHttpClientSupport.java

/**
 * Perform a JSON HTTP request./*from w  ww  . j  a v a2s.co  m*/
 * 
 * @param url
 *        the URL to make the request to
 * @param method
 *        the HTTP method, e.g. {@link HttpClientSupport#HTTP_METHOD_GET}
 * @param data
 *        the optional data to marshall to JSON and upload as the request
 *        content
 * @return the InputStream for the HTTP response
 * @throws IOException
 *         if any IO error occurs
 */
protected final InputStream doJson(String url, String method, Object data) throws IOException {
    URLConnection conn = getURLConnection(url, method, JSON_MIME_TYPE);
    if (data != null) {
        conn.setRequestProperty("Content-Type", JSON_MIME_TYPE + ";charset=UTF-8");
        if (compress) {
            conn.setRequestProperty("Content-Encoding", "gzip");
        }
        OutputStream out = conn.getOutputStream();
        if (compress) {
            out = new GZIPOutputStream(out);
        }

        if (log.isDebugEnabled()) {
            log.debug("Posting JSON data: {}",
                    objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(data));
        }
        objectMapper.writeValue(out, data);
        out.flush();
        out.close();
    }

    return getInputStreamFromURLConnection(conn);
}

---

From source file:org.apache.cayenne.rop.http.HttpROPConnector.java

protected InputStream doRequest(Map<String, String> params) throws IOException {
    URLConnection connection = new URL(url).openConnection();

    if (readTimeout != null) {
        connection.setReadTimeout(readTimeout.intValue());
    }/*from   w  w  w . j a  v  a2  s.c  om*/

    addAuthHeader(connection);

    connection.setDoOutput(true);

    connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    connection.setRequestProperty("charset", "utf-8");

    try (OutputStream output = connection.getOutputStream()) {
        output.write(ROPUtil.getParamsAsString(params).getBytes(StandardCharsets.UTF_8));
        output.flush();
    }

    return connection.getInputStream();
}

---

From source file:org.apache.cayenne.rop.http.HttpROPConnector.java

protected InputStream doRequest(byte[] data) throws IOException {
    URLConnection connection = new URL(url).openConnection();

    if (readTimeout != null) {
        connection.setReadTimeout(readTimeout.intValue());
    }/*from  w w  w . j  a v a 2 s .c om*/

    addAuthHeader(connection);
    addSessionCookie(connection);
    connection.setDoOutput(true);

    connection.setRequestProperty("Content-Type", "application/octet-stream");

    if (data != null) {
        try (OutputStream output = connection.getOutputStream()) {
            output.write(data);
            output.flush();
        }
    }

    return connection.getInputStream();
}

---

From source file:net.sourceforge.atunes.kernel.modules.network.NetworkHandler.java

/**
 * Sends a POST request with given parameters and receives response with
 * given charset/*ww  w.  jav  a  2s .  c om*/
 * 
 * @param requestURL
 * @param params
 * @param charset
 * @return
 * @throws IOException
 */
@Override
public String readURL(final String requestURL, final Map<String, String> params, final String charset)
        throws IOException {
    URLConnection connection = getConnection(requestURL);
    connection.setUseCaches(false);
    connection.setDoInput(true);

    if (params != null && params.size() > 0) {
        connection.setDoOutput(true);
        OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
        writer.write(formatPOSTParameters(params));
        writer.flush();
    }

    InputStream input = null;
    try {
        input = connection.getInputStream();
        return IOUtils.toString(input, charset);
    } finally {
        ClosingUtils.close(input);
    }
}

---

From source file:org.bireme.interop.fromJson.Json2Couch.java

private void sendDocuments(final String docs) {
    try {//from   w w  w  .j  a  v a  2s  .c o m
        assert docs != null;

        final URLConnection connection = url.openConnection();
        connection.setRequestProperty("CONTENT-TYPE", "application/json");
        connection.setRequestProperty("Accept", "application/json");
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.connect();

        try (OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream())
        //final String udocs = URLEncoder.encode(docs, "UTF-8");
        ) {
            out.write(docs);
        }

        try (InputStreamReader reader = new InputStreamReader(connection.getInputStream())) {
            final List<String> msgs = getBadDocuments(reader);

            for (String msg : msgs) {
                System.err.println("write error: " + msg);
            }
        }
    } catch (IOException ex) {
        Logger.getLogger(Json2Couch.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

From source file:org.jlibrary.core.http.client.HTTPDelegate.java

/**
 * Excecutes a void request//from w  ww  .java2s. c om
 * 
 * @param methodName Name of the method to execute
 * @param params Method params
 * @param returnClass Class for the return object. If the class is InputStream this method will return 
 * the HTTP request input stream
 * @param inputStream Stream for reading contents that will be sent
 * 
 * @throws Exception If there is any problem running the request
 */
public Object doRequest(String methodName, Object[] params, Class returnClass, InputStream inputStream)
        throws Exception {

    try {
        logger.debug(servletURL.toString());
        logger.debug("opening connection");
        URLConnection conn = servletURL.openConnection();
        conn.setDoInput(true);
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setAllowUserInteraction(false);
        conn.setRequestProperty("Content-type", "text/plain");

        //write request and params:
        OutputStream stream = conn.getOutputStream();
        // write streaming header if necessary
        if (inputStream != null) {
            stream.write(ByteUtils.intToByteArray("stream-input".getBytes().length));
            stream.write("stream-input".getBytes());
            stream.flush();
        }
        if (returnClass == InputStream.class) {
            stream.write(ByteUtils.intToByteArray("stream-output".getBytes().length));
            stream.write("stream-output".getBytes());
            stream.flush();
        }

        // Write method
        stream.write(ByteUtils.intToByteArray(methodName.getBytes().length));
        stream.write(methodName.getBytes());
        //stream.flush();
        // Write parameters
        stream.write(ByteUtils.intToByteArray(params.length));
        for (int i = 0; i < params.length; i++) {
            byte[] content = SerializationUtils.serialize((Serializable) params[i]);
            stream.write(ByteUtils.intToByteArray(content.length));
            stream.write(content);
            stream.flush();
        }

        if (inputStream != null) {
            IOUtils.copy(inputStream, stream);
        }

        //stream.flush();
        //stream.close();

        //read response:
        InputStream input = conn.getInputStream();
        if (returnClass == InputStream.class) {
            // Contents will be read from outside
            return input;
        }
        ObjectInputStream objInput = new ObjectInputStream(input);
        Object o = objInput.readObject();
        if (o == null) {
            return null;
        }
        stream.close();
        if (o instanceof Exception) {
            throw (Exception) o;
        } else {
            if (returnClass == null) {
                return null;
            }
            // try to cast
            try {
                returnClass.cast(o);
            } catch (ClassCastException cce) {
                String msg = "Unexpected response from execution servlet: " + o;
                logger.error(msg);
                throw new Exception(msg);
            }
        }
        return o;
    } catch (ClassNotFoundException e) {
        throw new Exception(e);
    } catch (ClassCastException e) {
        throw new Exception(e);
    } catch (IOException e) {
        throw new Exception(e);
    }
}

---

From source file:Store.AfricasTalkingGateway.java

private String sendPOSTRequest(HashMap<String, String> dataMap_, String urlString_) throws Exception {
    try {//  ww  w .  ja  v a  2  s .c o m
        String data = new String();
        Iterator<Map.Entry<String, String>> it = dataMap_.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry<String, String> pairs = (Map.Entry<String, String>) it.next();
            data += URLEncoder.encode(pairs.getKey().toString(), "UTF-8");
            data += "=" + URLEncoder.encode(pairs.getValue().toString(), "UTF-8");
            if (it.hasNext())
                data += "&";
        }
        URL url = new URL(urlString_);
        URLConnection conn = url.openConnection();
        conn.setRequestProperty("Accept", "application/json");
        conn.setRequestProperty("apikey", _apiKey);
        conn.setDoOutput(true);
        OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
        writer.write(data);
        writer.flush();

        HttpURLConnection http_conn = (HttpURLConnection) conn;
        responseCode = http_conn.getResponseCode();

        BufferedReader reader;
        if (responseCode == HTTP_CODE_OK || responseCode == HTTP_CODE_CREATED)
            reader = new BufferedReader(new InputStreamReader(http_conn.getInputStream()));
        else
            reader = new BufferedReader(new InputStreamReader(http_conn.getErrorStream()));
        String response = reader.readLine();

        if (DEBUG)
            System.out.println(response);

        reader.close();
        return response;

    } catch (Exception e) {
        throw e;
    }
}

---

From source file:org.omegat.languagetools.LanguageToolNetworkBridge.java

@Override
@SuppressWarnings("unchecked")
protected List<LanguageToolResult> getCheckResultsImpl(String sourceText, String translationText)
        throws Exception {
    if (targetLang == null) {
        return Collections.emptyList();
    }//from w  w  w  .j  ava  2 s .c  o m

    URL url = new URL(serverUrl);
    URLConnection conn = url.openConnection();
    conn.setRequestProperty("User-Agent", OStrings.getNameAndVersion());
    conn.setDoOutput(true);
    try (OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream())) {
        String srcLang = sourceLang == null ? null : sourceLang.toString();
        writer.write(buildPostData(srcLang, targetLang.toString(), sourceText, translationText,
                disabledCategories, disabledRules, enabledRules));
        writer.flush();
    }

    checkHttpError(conn);

    String json = "";
    try (InputStream in = conn.getInputStream()) {
        json = IOUtils.toString(in, StandardCharsets.UTF_8);
    }

    Map<String, Object> response = (Map<String, Object>) JsonParser.parse(json);
    Map<String, String> software = (Map<String, String>) response.get("software");

    if (!software.get("apiVersion").equals(API_VERSION)) {
        Log.logWarningRB("LT_API_VERSION_MISMATCH");
    }

    List<Map<String, Object>> matches = (List<Map<String, Object>>) response.get("matches");

    return matches.stream().map(match -> {
        String message = addSuggestionTags((String) match.get("message"));
        int start = (int) match.get("offset");
        int end = start + (int) match.get("length");
        Map<String, Object> rule = (Map<String, Object>) match.get("rule");
        String ruleId = (String) rule.get("id");
        String ruleDescription = (String) rule.get("description");
        return new LanguageToolResult(message, start, end, ruleId, ruleDescription);
    }).collect(Collectors.toList());
}

---

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