javax.servlet.ServletContext#getVirtualServerName ( )源码实例Demo

/**
 * Start this component and implement the requirements of
 * {@link org.apache.catalina.util.LifecycleBase#startInternal()}.
 *
 * @exception LifecycleException
 *                if this component detects a fatal error that prevents this
 *                component from being used
 */
@Override
protected synchronized void startInternal() throws LifecycleException {
    ServletContext servletContext = context.getServletContext();
    jaspicAppContextID = servletContext.getVirtualServerName() + " " +
            servletContext.getContextPath();

    // Look up the SingleSignOn implementation in our request processing
    // path, if there is one
    Container parent = context.getParent();
    while ((sso == null) && (parent != null)) {
        Valve valves[] = parent.getPipeline().getValves();
        for (int i = 0; i < valves.length; i++) {
            if (valves[i] instanceof SingleSignOn) {
                sso = (SingleSignOn) valves[i];
                break;
            }
        }
        if (sso == null) {
            parent = parent.getParent();
        }
    }
    if (log.isDebugEnabled()) {
        if (sso != null) {
            log.debug("Found SingleSignOn Valve at " + sso);
        } else {
            log.debug("No SingleSignOn Valve is present");
        }
    }

    sessionIdGenerator = new StandardSessionIdGenerator();
    sessionIdGenerator.setSecureRandomAlgorithm(getSecureRandomAlgorithm());
    sessionIdGenerator.setSecureRandomClass(getSecureRandomClass());
    sessionIdGenerator.setSecureRandomProvider(getSecureRandomProvider());

    super.startInternal();
}
 

/**
 * Initialize Eleos
 * 
 * @param classes the classes.
 * @param servletContext the Servlet context.
 * @throws ServletException when a Servlet error occurs.
 */
@Override
public void onStartup(Set<Class<?>> classes, ServletContext servletContext) throws ServletException {
    
    // Gets the authentication module class that was configured externally
    Class<?> authModuleClass = (Class<?>) servletContext.getAttribute(AUTH_MODULE_CLASS);
    if (authModuleClass == null) {
        authModuleClass = DoNothingServerAuthModule.class;
    }
    
    String appContextId = servletContext.getVirtualServerName() + " " + servletContext.getContextPath();
    
    // This sets the authentication factory to the default factory. This factory stores and retrieves
    // the authentication artifacts.
    Security.setProperty(DEFAULT_FACTORY_SECURITY_PROPERTY, DefaultConfigFactory.class.getName());
    
    // Defines the modules that we have available. Here it's only a single fixed module.
    ConfigParser configParser = new DefaultConfigParser(authModuleClass);
    
    // Indicates the module we want to use
    Map<String, Object> options = new HashMap<>();
    options.put("authModuleId", authModuleClass.getSimpleName());
    
    // This authentication service installs an authentication config provider in the default factory, which
    // is the one we setup above. This authentication config provider uses the passed-in configParser to
    // retrieve configuration for authentication modules from.
    DefaultAuthenticationService authenticationService = new DefaultAuthenticationService(appContextId, options, configParser, null);
    
    servletContext.setAttribute(AUTH_SERVICE, authenticationService);
    
    servletContext.addFilter(AuthenticationFilter.class.getSimpleName(), AuthenticationFilter.class);
    
    // TMP - should use Dynamic
    ((WebApplication) servletContext).addFilterMapping(AuthenticationFilter.class.getSimpleName(), "/*");
}
 

public static WebApiBinder newBinder(ApiBinder apiBinder) throws IOException {
    Environment environment = apiBinder.getEnvironment();
    Object context = environment.getContext();
    if (!(context instanceof ServletContext)) {
        return null;
    }
    ServletContext servletContext = (ServletContext) context;
    //
    // .MimeType
    MimeTypeSupplier mimeTypeContext = new MimeTypeSupplier(servletContext);
    mimeTypeContext.loadResource("/META-INF/mime.types.xml");
    mimeTypeContext.loadResource("mime.types.xml");
    apiBinder.bindType(MimeType.class, mimeTypeContext);
    //
    //.ServletVersion
    ServletVersion curVersion = ServletVersion.V2_3;
    try {
        environment.getClassLoader().loadClass("javax.servlet.ServletRequestListener");
        curVersion = ServletVersion.V2_4;
        servletContext.getContextPath();
        curVersion = ServletVersion.V2_5;
        servletContext.getEffectiveMajorVersion();
        curVersion = ServletVersion.V3_0;
        servletContext.getVirtualServerName();
        curVersion = ServletVersion.V3_1;
    } catch (Throwable e) { /* 忽略 */ }
    //
    // .Binder
    apiBinder.bindType(ServletContext.class).toInstance(servletContext);
    apiBinder.bindType(ServletVersion.class).toInstance(curVersion);
    //
    return new InvokerWebApiBinder(curVersion, mimeTypeContext, apiBinder);
}
 

public static String getAppContextID(ServletContext context) {
    return context.getVirtualServerName() + " " + context.getContextPath();
}