DefaultWebSubjectFactory类

DefaultWebSubjectFactory是用于创建WebSubject的类,它继承DefaultSubjectFactory并重写createSubject方法。构造方法中初始化父类,createSubject方法根据WebSubjectContext创建WebSubject,包括解析SecurityManager、Session、Principal等信息,并通过newSubjectInstance方法实例化WebDelegatingSubject。

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DefaultWebSubjectFactory类主要定义了创建webSubject的操作,它继承了DefaultSubjectFactory类,现对其解析如下:

1.DefaultSubjectFactory类

可以参考DefaultSubjectFactory类源码解析,里面主要定义了创建subject的操作。

2.DefaultWebSubjectFactory类

2.1.构造方法

public DefaultWebSubjectFactory() {
        super();
}

2.2.创建subject(它覆盖了DefaultSubjectFactory类的方法)

public Subject createSubject(SubjectContext context) {
        if (!(context instanceof WebSubjectContext)) {
            return super.createSubject(context);
        }
        WebSubjectContext wsc = (WebSubjectContext) context;
        SecurityManager securityManager = wsc.resolveSecurityManager();
        Session session = wsc.resolveSession();
        boolean sessionEnabled = wsc.isSessionCreationEnabled();
        PrincipalCollection principals = wsc.resolvePrincipals();
        boolean authenticated = wsc.resolveAuthenticated();
        String host = wsc.resolveHost();
        ServletRequest request = wsc.resolveServletRequest();
        ServletResponse response = wsc.resolveServletResponse();

        return new WebDelegatingSubject(principals, authenticated, host, session, sessionEnabled,
                request, response, securityManager);
    }

2.3.新建subject实例

protected Subject newSubjectInstance(PrincipalCollection principals, boolean authenticated,
                                         String host, Session session,
                                         ServletRequest request, ServletResponse response,
                                         SecurityManager securityManager) {
        return new WebDelegatingSubject(principals, authenticated, host, session, true,
                request, response, securityManager);
}

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