@ Override public void configureGateway ( Gateway gateway ) { Properties properties = new Properties ( ) ; properties . putAll ( System . getProperties ( ) ) ; String gatewayHome = properties . getProperty ( Gateway . GATEWAY_HOME_PROPERTY ) ; if ( ( gatewayHome == null ) || "" . equals ( gatewayHome ) ) { ClassLoader loader = Thread . currentThread ( ) . getContextClassLoader ( ) ; URL classUrl = loader . getResource ( "org/kaazing/gateway/server/Gateway.class" ) ; String urlStr ; try { urlStr = URLDecoder . decode ( classUrl . toString ( ) , "UTF-8" ) ; } catch ( UnsupportedEncodingException ex ) { // it's not likely that UTF-8 will be unsupported, so in practice this will never occur throw new RuntimeException ( "Failed to configure Gateway" , ex ) ; } // The URL is coming from a JAR file. The format of that is supposed to be // jar:<url>!/<packagepath>. Normally the first part of the <url> section will be // 'file:', but could be different if somehow the JAR is loaded from the network. // We can only handle the 'file' case, so will check. int packageSeparatorIndex = urlStr . indexOf ( "!/" ) ; if ( packageSeparatorIndex > 0 ) { urlStr = urlStr . substring ( 0 , urlStr . indexOf ( "!/" ) ) ; urlStr = urlStr . substring ( 4 ) ; // remove the 'jar:' part. } if ( ! urlStr . startsWith ( "file:" ) ) { throw new RuntimeException ( "The Gateway class was not loaded from a file, so we " + "cannot determine the location of GATEWAY_HOME" ) ; } urlStr = urlStr . substring ( 5 ) ; // remove the 'file:' stuff. File jarFile = new File ( urlStr ) ; gatewayHome = jarFile . getParentFile ( ) . getParent ( ) ; properties . setProperty ( "GATEWAY_HOME" , gatewayHome ) ; } gateway . setProperties ( properties ) ; }
Bootstrap the Gateway instance with a GATEWAY_HOME if not already set in System properties .