Examples with ProtocolException java.net.ProtocolException used on opensource projects

Example 76 with ProtocolException

use of java.net.ProtocolException in project opennms by OpenNMS.

the class BasicHttpMethods method postData.

/**
 * Reads data from the data reader and posts it to a server via POST request.
 * data - The data you want to send
 * endpoint - The server's address
 * output - writes the server's response to output
 * @throws Exception
 */
public void postData(Reader data, URL endpoint, Writer output, String username, String password) throws Exception {
    HttpURLConnection conn = null;
    try {
        conn = (HttpURLConnection) endpoint.openConnection();
        try {
            conn.setRequestMethod("POST");
        } catch (ProtocolException e) {
            throw new Exception("Shouldn't happen: HttpURLConnection doesn't support POST??", e);
        }
        // set username and password
        // see http://www.javaworld.com/javaworld/javatips/jw-javatip47.html
        String userPassword = username + ":" + password;
        // Encode String
        // String encoding = new sun.misc.BASE64Encoder().encode (userPassword.getBytes()); // depreciated sun.misc.BASE64Encoder()
        byte[] encoding = org.apache.commons.codec.binary.Base64.encodeBase64(userPassword.getBytes());
        String authStringEnc = new String(encoding);
        log.debug("Base64 encoded auth string: '" + authStringEnc + "'");
        conn.setRequestProperty("Authorization", "Basic " + authStringEnc);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setUseCaches(false);
        conn.setAllowUserInteraction(false);
        conn.setRequestProperty("Content-type", "application/xml; charset=" + "UTF-8");
        OutputStream out = conn.getOutputStream();
        try {
            Writer writer = new OutputStreamWriter(out, "UTF-8");
            pipe(data, writer);
            writer.close();
        } catch (IOException e) {
            throw new Exception("IOException while posting data", e);
        } finally {
            if (out != null)
                out.close();
        }
        InputStream in = conn.getInputStream();
        try {
            Reader reader = new InputStreamReader(in);
            pipe(reader, output);
            reader.close();
        } catch (IOException e) {
            throw new Exception("IOException while reading response", e);
        } finally {
            if (in != null)
                in.close();
        }
    } catch (IOException e) {
        throw new Exception("Connection error (is server running at " + endpoint + " ?): " + e);
    } finally {
        if (conn != null)
            conn.disconnect();
    }
}

Example 77 with ProtocolException

use of java.net.ProtocolException in project opennms by OpenNMS.

the class BasicHttpMethods method putData.

/**
 * sends data to a server via PUT request.
 * data - The data you want to send
 * endpoint - The server's address
 * output - writes the server's response to output
 * @throws Exception
 */
public void putData(Reader data, URL endpoint, Writer output, String username, String password) throws Exception {
    HttpURLConnection conn = null;
    try {
        conn = (HttpURLConnection) endpoint.openConnection();
        try {
            conn.setRequestMethod("PUT");
        } catch (ProtocolException e) {
            throw new Exception("Shouldn't happen: HttpURLConnection doesn't support PUT??", e);
        }
        // set username and password
        // see http://www.javaworld.com/javaworld/javatips/jw-javatip47.html
        String userPassword = username + ":" + password;
        // Encode String
        // String encoding = new sun.misc.BASE64Encoder().encode (userPassword.getBytes()); // depreciated sun.misc.BASE64Encoder()
        byte[] encoding = org.apache.commons.codec.binary.Base64.encodeBase64(userPassword.getBytes());
        String authStringEnc = new String(encoding);
        log.debug("Base64 encoded auth string: '" + authStringEnc + "'");
        conn.setRequestProperty("Authorization", "Basic " + authStringEnc);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setUseCaches(false);
        conn.setAllowUserInteraction(false);
        conn.setRequestProperty("Content-type", "application/x-www-form-urlencoded; charset=" + "UTF-8");
        OutputStream out = conn.getOutputStream();
        try {
            Writer writer = new OutputStreamWriter(out, "UTF-8");
            pipe(data, writer);
            writer.close();
        } catch (IOException e) {
            throw new Exception("IOException while putting data", e);
        } finally {
            if (out != null)
                out.close();
        }
        InputStream in = conn.getInputStream();
        try {
            Reader reader = new InputStreamReader(in);
            pipe(reader, output);
            reader.close();
        } catch (IOException e) {
            throw new Exception("IOException while reading response", e);
        } finally {
            if (in != null)
                in.close();
        }
    } catch (IOException e) {
        throw new Exception("Connection error (is server running at " + endpoint + " ?): " + e);
    } finally {
        if (conn != null)
            conn.disconnect();
    }
}

Example 78 with ProtocolException

use of java.net.ProtocolException in project opennms by OpenNMS.

the class BasicHttpMethods method deleteData.

/**
 * Sends an HTTP DELETE request to a url
 * endpoint - The server's address
 * output - writes the server's response to output
 * @throws Exception
 */
public void deleteData(URL endpoint, Writer output, String username, String password) throws Exception {
    HttpURLConnection conn = null;
    try {
        conn = (HttpURLConnection) endpoint.openConnection();
        try {
            conn.setRequestMethod("DELETE");
        } catch (ProtocolException e) {
            throw new Exception("Shouldn't happen: HttpURLConnection doesn't support DELETE??", e);
        }
        // set username and password
        // see http://www.javaworld.com/javaworld/javatips/jw-javatip47.html
        String userPassword = username + ":" + password;
        // Encode String
        // String encoding = new sun.misc.BASE64Encoder().encode (userPassword.getBytes()); // depreciated sun.misc.BASE64Encoder()
        byte[] encoding = org.apache.commons.codec.binary.Base64.encodeBase64(userPassword.getBytes());
        String authStringEnc = new String(encoding);
        log.debug("Base64 encoded auth string: '" + authStringEnc + "'");
        conn.setRequestProperty("Authorization", "Basic " + authStringEnc);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setUseCaches(false);
        conn.setAllowUserInteraction(false);
        conn.setRequestProperty("Content-type", "application/xml; charset=" + "UTF-8");
        InputStream in = conn.getInputStream();
        try {
            Reader reader = new InputStreamReader(in);
            pipe(reader, output);
            reader.close();
        } catch (IOException e) {
            throw new Exception("IOException while reading response", e);
        } finally {
            if (in != null)
                in.close();
        }
    } catch (IOException e) {
        throw new Exception("Connection error (is server running at " + endpoint + " ?): " + e);
    } finally {
        if (conn != null)
            conn.disconnect();
    }
}

Example 79 with ProtocolException

use of java.net.ProtocolException in project cxf by apache.

the class JsXMLHttpRequest method doSend.

private void doSend(byte[] dataToSend, boolean xml) {
    // avoid warnings on stuff we arent using yet.
    if (storedUser != null || storedPassword != null) {
    // 
    }
    // 1 check state
    if (readyState != jsGet_OPENED()) {
        LOG.severe("send state != OPENED.");
        throwError("INVALID_STATE_ERR");
    }
    // 2 check flag
    if (sendFlag) {
        LOG.severe("send sendFlag set.");
        throwError("INVALID_STATE_ERR");
    }
    // 3
    sendFlag = storedAsync;
    // UTF-8 bytes.
    if (xml && !requestHeaders.containsKey("Content-Type")) {
        requestHeaders.put("Content-Type", "application/xml;charset=utf-8");
    }
    // 5 talk to the server.
    try {
        connection = url.openConnection();
    } catch (IOException e) {
        LOG.log(Level.SEVERE, "send connection failed.", e);
        throwError("CONNECTION_FAILED");
    }
    connection.setDoInput(true);
    // Enable tunneling.
    connection.setUseCaches(false);
    boolean post = false;
    httpConnection = null;
    if (connection instanceof HttpURLConnection) {
        httpConnection = (HttpURLConnection) connection;
        try {
            httpConnection.setRequestMethod(storedMethod);
            if ("POST".equalsIgnoreCase(storedMethod)) {
                httpConnection.setDoOutput(true);
                post = true;
            }
            for (Map.Entry<String, String> headerEntry : requestHeaders.entrySet()) {
                httpConnection.setRequestProperty(headerEntry.getKey(), headerEntry.getValue());
            }
        } catch (ProtocolException e) {
            LOG.log(Level.SEVERE, "send http protocol exception.", e);
            throwError("HTTP_PROTOCOL_ERROR");
        }
    }
    if (post) {
        OutputStream outputStream = null;
        try {
            // implicitly connects?
            outputStream = connection.getOutputStream();
            if (dataToSend != null) {
                outputStream.write(dataToSend);
                outputStream.flush();
            }
            outputStream.close();
        } catch (IOException e) {
            errorFlag = true;
            LOG.log(Level.SEVERE, "send output error.", e);
            throwError("NETWORK_ERR");
            try {
                outputStream.close();
            } catch (IOException e1) {
            // 
            }
        }
    }
    // 6
    notifyReadyStateChangeListener();
    if (storedAsync) {
        new Thread() {

            public void run() {
                try {
                    Context cx = ContextFactory.getGlobal().enterContext();
                    communicate(cx);
                } finally {
                    Context.exit();
                }
            }
        }.start();
    } else {
        communicate(Context.getCurrentContext());
    }
}

Example 80 with ProtocolException

use of java.net.ProtocolException in project grakn by graknlabs.

the class Client method serverIsRunning.

/**
 * Check if Grakn Engine has been started
 *
 * @return true if Grakn Engine running, false otherwise
 */
public static boolean serverIsRunning(SimpleURI uri) {
    URL url;
    try {
        url = UriBuilder.fromUri(uri.toURI()).path(REST.WebPath.KB).build().toURL();
    } catch (MalformedURLException e) {
        throw CommonUtil.unreachableStatement("This will never throw because we're appending a known path to a valid URI", e);
    }
    HttpURLConnection connection;
    try {
        connection = (HttpURLConnection) mapQuadZeroRouteToLocalhost(url).openConnection();
    } catch (IOException e) {
        // If this fails, then the server is not reachable
        return false;
    }
    try {
        connection.setRequestMethod("GET");
    } catch (ProtocolException e) {
        throw CommonUtil.unreachableStatement("This will never throw because 'GET' is correct and the connection is not open yet", e);
    }
    int available;
    try {
        connection.connect();
        InputStream inputStream = connection.getInputStream();
        available = inputStream.available();
    } catch (IOException e) {
        // If this fails, then the server is not reachable
        return false;
    }
    return available != 0;
}