Example usage for javax.net.ssl HttpsURLConnection getReadTimeout

Introduction

In this page you can find the example usage for javax.net.ssl HttpsURLConnection getReadTimeout.

Prototype

public int getReadTimeout() 

Source Link

Document

Returns setting for read timeout.

Usage

From source file:org.comixwall.pffw.GraphsBase.java

/**
 * Run the controller task.// w  w w .  j  a  v a 2 s  .  com
 * We fetch the graphs using secure http, or fall back to plain http if secure connection fails.
 * <p>
 * Note that the PFFW uses a self-signed server certificate. So the code should trust that certificate
 * and not reject the hostname.
 *
 * @return True on success, false on failure.
 */
@Override
public boolean executeTask() {
    Boolean retval = true;
    try {
        String output = controller.execute("symon", "RenderLayout", mLayout, mGraphWidth, mGraphHeight);

        JSONArray jsonArray = new JSONArray(output);
        mGraphsJsonObject = new JSONObject(jsonArray.get(0).toString());

        Iterator<String> it = mGraphsJsonObject.keys();
        while (it.hasNext()) {
            String title = it.next();
            String file = mGraphsJsonObject.getString(title);

            try {
                InputStream stream = null;

                try {
                    String outputGraph = controller.execute("symon", "GetGraph", file);
                    String base64Graph = new JSONArray(outputGraph).get(0).toString();
                    stream = new ByteArrayInputStream(Base64.decode(base64Graph, Base64.DEFAULT));

                } catch (Exception e) {
                    e.printStackTrace();
                    logger.warning("SSH graph connection exception: " + e.toString());
                }

                // Try secure http if ssh fails
                if (stream == null) {
                    // 1540861800_404e00f4044d07242a77f802e457f774
                    String hash = file.substring(file.indexOf('_') + 1);

                    try {
                        // Using https here gives: CertPathValidatorException: Trust anchor for certification path not found.
                        // So we should trust the PFFW server crt and hostname
                        URL secureUrl = new URL("https://" + controller.getHost() + "/symon/graph.php?" + hash);

                        HttpsURLConnection secureUrlConn = (HttpsURLConnection) secureUrl.openConnection();

                        // Tell the URLConnection to use a SocketFactory from our SSLContext
                        secureUrlConn.setSSLSocketFactory(sslContext.getSocketFactory());

                        // Install the PFFW host verifier
                        secureUrlConn.setHostnameVerifier(hostnameVerifier);

                        logger.finest("Using secure http: " + secureUrl.toString());

                        // ATTENTION: Setting a timeout value enables SocketTimeoutException, set both timeouts
                        secureUrlConn.setConnectTimeout(5000);
                        secureUrlConn.setReadTimeout(5000);
                        logger.finest("Secure URL connection timeout values: "
                                + secureUrlConn.getConnectTimeout() + ", " + secureUrlConn.getReadTimeout());

                        stream = secureUrlConn.getInputStream();

                    } catch (Exception e) {
                        e.printStackTrace();
                        logger.warning("Secure URL connection exception: " + e.toString());
                    }

                    // Try plain http if secure http fails
                    if (stream == null) {
                        // ATTENTION: Don't use try-catch here, catch in the outer exception handling
                        URL plainUrl = new URL("http://" + controller.getHost() + "/symon/graph.php?" + hash);

                        HttpURLConnection plainUrlConn = (HttpURLConnection) plainUrl.openConnection();

                        logger.finest("Using plain http: " + plainUrlConn.toString());

                        // ATTENTION: Setting a timeout value enables SocketTimeoutException, set both timeouts
                        plainUrlConn.setConnectTimeout(5000);
                        plainUrlConn.setReadTimeout(5000);
                        logger.finest("Plain URL connection timeout values: " + plainUrlConn.getConnectTimeout()
                                + ", " + plainUrlConn.getReadTimeout());

                        stream = plainUrlConn.getInputStream();
                    }
                }

                Bitmap bmp = BitmapFactory.decodeStream(stream);
                setBitmap(title, bmp);

            } catch (Exception e) {
                // We are especially interested in SocketTimeoutException, but catch all
                e.printStackTrace();
                logger.info("GraphsBase doInBackground exception: " + e.toString());
                // We should break out of while loop on exception, because all conn attempts have failed
                break;
            }
        }

        output = controller.execute("pf", "GetReloadRate");

        int timeout = Integer.parseInt(new JSONArray(output).get(0).toString());
        mRefreshTimeout = timeout < 10 ? 10 : timeout;

    } catch (Exception e) {
        e.printStackTrace();
        logger.warning("doInBackground exception: " + e.toString());
        retval = false;
    }
    return retval;
}

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