Пример #1
0
  /**
   * Initialize the backend systems, the log handler and the restrictor. A subclass can tune this
   * step by overriding {@link #createRestrictor(String)} and {@link
   * #createLogHandler(ServletConfig, boolean)}
   *
   * @param pServletConfig servlet configuration
   */
  @Override
  public void init(ServletConfig pServletConfig) throws ServletException {
    super.init(pServletConfig);

    Configuration config = initConfig(pServletConfig);

    // Create a log handler early in the lifecycle, but not too early
    String logHandlerClass = config.get(ConfigKey.LOGHANDLER_CLASS);
    logHandler =
        logHandlerClass != null
            ? (LogHandler) ClassUtil.newInstance(logHandlerClass)
            : createLogHandler(pServletConfig, Boolean.valueOf(config.get(ConfigKey.DEBUG)));

    // Different HTTP request handlers
    httpGetHandler = newGetHttpRequestHandler();
    httpPostHandler = newPostHttpRequestHandler();

    if (restrictor == null) {
      restrictor =
          createRestrictor(NetworkUtil.replaceExpression(config.get(ConfigKey.POLICY_LOCATION)));
    } else {
      logHandler.info("Using custom access restriction provided by " + restrictor);
    }
    configMimeType = config.get(ConfigKey.MIME_TYPE);
    backendManager = new BackendManager(config, logHandler, restrictor);
    requestHandler = new HttpRequestHandler(config, backendManager, logHandler);

    initDiscoveryMulticast(config);
  }
Пример #2
0
  // Examines servlet config and servlet context for configuration parameters.
  // Configuration from the servlet context overrides servlet parameters defined in web.xml
  Configuration initConfig(ServletConfig pConfig) {
    Configuration config =
        new Configuration(ConfigKey.AGENT_ID, NetworkUtil.getAgentId(hashCode(), "servlet"));
    // From ServletContext ....
    config.updateGlobalConfiguration(new ServletConfigFacade(pConfig));
    // ... and ServletConfig
    config.updateGlobalConfiguration(new ServletContextFacade(getServletContext()));

    // Set type last and overwrite anything written
    config.updateGlobalConfiguration(
        Collections.singletonMap(ConfigKey.AGENT_TYPE.getKeyValue(), "servlet"));
    return config;
  }
Пример #3
0
 // For war agent needs to be switched on
 private boolean listenForDiscoveryMcRequests(Configuration pConfig) {
   // Check for system props, system env and agent config
   boolean sysProp =
       System.getProperty("jolokia." + ConfigKey.DISCOVERY_ENABLED.getKeyValue()) != null;
   boolean env = System.getenv("JOLOKIA_DISCOVERY") != null;
   boolean config = pConfig.getAsBoolean(ConfigKey.DISCOVERY_ENABLED);
   return sysProp || env || config;
 }
Пример #4
0
 // Try to find an URL for system props or config
 private String findAgentUrl(Configuration pConfig) {
   // System property has precedence
   String url = System.getProperty("jolokia." + ConfigKey.DISCOVERY_AGENT_URL.getKeyValue());
   if (url == null) {
     url = System.getenv("JOLOKIA_DISCOVERY_AGENT_URL");
     if (url == null) {
       url = pConfig.get(ConfigKey.DISCOVERY_AGENT_URL);
     }
   }
   return NetworkUtil.replaceExpression(url);
 }