Embedded Jetty server to support https - Server Parameters in .XML configuration files

1. Java Code to start up Jetty Server:

        // load jetty xml files in order: jetty.xml -> jetty-ssl.xml -> jetty-ssl-context.xml -> jetty-https.xml
        List<String> configurations = new ArrayList<String>();
        configurations.add("jetty.xml");
        configurations.add("jetty-ssl.xml");
        configurations.add("jetty-ssl-context.xml");
        configurations.add("jetty-https.xml");


        String jettyConfigDir = "/myconfig/jetty/";
        XmlConfiguration last = null;
        List<Object> configuredObjects  = new ArrayList<Object>();
        for (String configFile : configurations) {
            InputStream configStream = null;

            File xmlConfiguration = new File(jettyConfigDir + configFile);
            if (xmlConfiguration.exists()) {
                configStream = new FileInputStream(xmlConfiguration);
            } else {

            }

            XmlConfiguration configuration = new XmlConfiguration(configStream);
            if (last != null) {
                configuration.getIdMap().putAll(last.getIdMap());
            }
            configuredObjects.add(configuration.configure());
            last = configuration;
        }

        // first object is a Server instance because of the jetty.xml
        Server server = (Server) configuredObjects.get(0);

2. jetty.xml

<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_3.dtd">

<!-- =============================================================== -->
<!-- Documentation of this file format can be found at:              -->
<!-- http://wiki.eclipse.org/Jetty/Reference/jetty.xml_syntax        -->
<!-- =============================================================== -->

<!-- =============================================================== -->
<!-- Configure a Jetty Server instance with an ID "Server"           -->
<!-- Other configuration files may also configure the "Server"       -->
<!-- ID, in which case they are adding configuration to the same     -->
<!-- instance.  If other configuration have a different ID, they     -->
<!-- will create and configure another instance of Jetty.            -->
<!-- Consult the javadoc of o.e.j.server.Server for all              -->
<!-- configuration that may be set here.                             -->
<!-- =============================================================== -->
<Configure id="Server" class="org.eclipse.jetty.server.Server">
 <!-- =========================================================== -->
    <!-- extra server options                                        -->
    <!-- =========================================================== -->
    <Set name="stopAtShutdown"><Property name="jetty.server.stopAtShutdown" default="true"/></Set>
    <Set name="stopTimeout"><Property name="jetty.server.stopTimeout" default="5000"/></Set>
    <Set name="dumpAfterStart"><Property name="jetty.server.dumpAfterStart" deprecated="jetty.dump.start" default="false"/></Set>
    <Set name="dumpBeforeStop"><Property name="jetty.server.dumpBeforeStop" deprecated="jetty.dump.stop" default="false"/></Set>

    <New id="httpConfig" class="org.eclipse.jetty.server.HttpConfiguration">
      <Set name="secureScheme">https</Set>
      <Set name="securePort"><Property name="jetty.ssl.port" default="1234" /></Set>
      <Set name="outputBufferSize">32768</Set>
    </New>

</Configure>

3. jetty-ssl.xml

<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_3.dtd">

<!-- ============================================================= -->
<!-- Base SSL configuration                                        -->
<!-- This configuration needs to be used together with 1 or more   -->
<!-- of jetty-https.xml or jetty-http2.xml                         -->
<!-- ============================================================= -->
<Configure id="Server" class="org.eclipse.jetty.server.Server">
  <New id="sslHttpConfig" class="org.eclipse.jetty.server.HttpConfiguration">
    <Arg><Ref refid="httpConfig"/></Arg>
    <Call name="addCustomizer">
      <Arg><New class="org.eclipse.jetty.server.SecureRequestCustomizer"/></Arg>
    </Call>
  </New>

  <!-- =========================================================== -->
  <!-- Add a SSL Connector with no protocol factories              -->
  <!-- =========================================================== -->
  <Call  name="addConnector">
    <Arg>
      <New id="sslConnector" class="org.eclipse.jetty.server.ServerConnector">
        <Arg name="server"><Ref refid="Server" /></Arg>
        <Arg name="factories">
          <Array type="org.eclipse.jetty.server.ConnectionFactory">
          </Array>
        </Arg>
        <Set name="host"><Property name="jetty.ssl.host" deprecated="jetty.host" /></Set>
        <Set name="port"><Property name="jetty.ssl.port" deprecated="ssl.port" default="1234" /></Set>
        <Set name="idleTimeout"><Property name="jetty.ssl.idleTimeout" deprecated="ssl.timeout" default="30000"/></Set>
      </New>
    </Arg>
  </Call>
</Configure>

4. jetty-ssl-context.xml

<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_3.dtd">

<!-- ============================================================= -->
<!-- SSL ContextFactory configuration                              -->
<!-- ============================================================= -->

<!--
  To configure Includes / Excludes for Cipher Suites or Protocols see tweak-ssl.xml example at
     https://www.eclipse.org/jetty/documentation/current/configuring-ssl.html#configuring-sslcontextfactory-cipherSuites
-->

<Configure id="sslContextFactory" class="org.eclipse.jetty.util.ssl.SslContextFactory">
 <Set name="KeyStorePath">
   <Property name="jetty.base" default="." />/<Property name="jetty.sslContext.keyStorePath" deprecated="jetty.keystore" default="../config/\
jetty/jetty.keystore"/></Set>
  <Set name="KeyStorePassword"><Property name="jetty.sslContext.keyStorePassword" deprecated="jetty.keystore.password" default="OBF:1sot1v96\
1saj1v9i1v941sar1v9g1sox"/></Set>

</Configure>

5. jetty-https.xml

<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_3.dtd">

<!-- ============================================================= -->
<!-- Configure a HTTPS connector.                                  -->
<!-- This configuration must be used in conjunction with jetty.xml -->
<!-- and jetty-ssl.xml.                                            -->
<!-- ============================================================= -->
<Configure id="sslConnector" class="org.eclipse.jetty.server.ServerConnector">
  <Call name="addIfAbsentConnectionFactory">
    <Arg>
      <New class="org.eclipse.jetty.server.SslConnectionFactory">
        <Arg name="next">http/1.1</Arg>
        <Arg name="sslContextFactory"><Ref refid="sslContextFactory"/></Arg>
      </New>
    </Arg>
  </Call>

  <Call name="addConnectionFactory">
    <Arg>
      <New class="org.eclipse.jetty.server.HttpConnectionFactory">
        <Arg name="config"><Ref refid="sslHttpConfig" /></Arg>
        <Arg name="compliance"><Call class="org.eclipse.jetty.http.HttpCompliance" name="valueOf"><Arg><Property name="jetty.http.compliance\
" default="RFC7230"/></Arg></Call></Arg>
      </New>
    </Arg>
  </Call>
</Configure>