Azkaban的Web Server源码探究系列3: Jetty Server初始化

上一节，主要讲了配置方面，接下来azkaban就开始启动server.

talk is cheap, show the code!

================================================

接下来主要是Jetty的Server的初始化，其实主要就是读配置，没啥好说的。

boolean ssl;

    int port;//

    final Server server = new Server();//org.mortbay.jetty.Server.Server()

 

    if (azkabanSettings.getBoolean("jetty.use.ssl", true)) {//这里为了更快速的

掌握azkaban,我在配置文件里设置jetty.use.ssl=false

      int sslPortNumber =

          azkabanSettings.getInt("jetty.ssl.port", DEFAULT_SSL_PORT_NUMBER);

      port = sslPortNumber;

      ssl = true;

      logger.info("Setting up Jetty Https Server with port:" + sslPortNumber

          + " and numThreads:" + maxThreads);

 

      SslSocketConnector secureConnector = new SslSocketConnector();

      secureConnector.setPort(sslPortNumber);

      secureConnector.setKeystore(azkabanSettings.getString("jetty.keystore"));

      secureConnector.setPassword(azkabanSettings.getString("jetty.password"));

      secureConnector.setKeyPassword(azkabanSettings

          .getString("jetty.keypassword"));

      secureConnector.setTruststore(azkabanSettings

          .getString("jetty.truststore"));

      secureConnector.setTrustPassword(azkabanSettings

          .getString("jetty.trustpassword"));

      secureConnector.setHeaderBufferSize(MAX_HEADER_BUFFER_SIZE);

 

      // set up vulnerable cipher suites to exclude

      List<String> cipherSuitesToExclude = azkabanSettings.getStringList("jetty.excludeCipherSuites");

      logger.info("Excluded Cipher Suites: " + String.valueOf(cipherSuitesToExclude));

      if (cipherSuitesToExclude != null && !cipherSuitesToExclude.isEmpty()) {

        secureConnector.setExcludeCipherSuites(cipherSuitesToExclude.toArray(new String[0]));

      }

 

      server.addConnector(secureConnector);

    } else {//看到这里了

      ssl = false;//看到这里了

      port = azkabanSettings.getInt("jetty.port", DEFAULT_PORT_NUMBER);//默认端口8081

      SocketConnector connector = new SocketConnector();//基于Jetty

      connector.setPort(port);//设置端口

      connector.setHeaderBufferSize(MAX_HEADER_BUFFER_SIZE);//10M

      server.addConnector(connector);//纳入管理体系

    }

 

    // setting stats configuration for connectors

    for (Connector connector : server.getConnectors()) {

      connector.setStatsOn(isStatsOn);//开启统计开关

    }

 

    String hostname = azkabanSettings.getString("jetty.hostname", "localhost");

    azkabanSettings.put("server.hostname", hostname);//保存起来

    azkabanSettings.put("server.port", port);//保存起来

    azkabanSettings.put("server.useSSL", String.valueOf(ssl));//保存起来

    //看到这里了

这样，基于Jetty Server就构造完毕，接下来会作为参数传入azkaban里面，

欲知后事如何，请听下回分解!