apache shiro （3） DefaultFilter

我不是女神ヾ 2023-07-09 08:26 1阅读 0赞

package org.apache.shiro.web.filter.mgt;
    
    import org.apache.shiro.util.ClassUtils;
    import org.apache.shiro.web.filter.authc.*;
    import org.apache.shiro.web.filter.authz.*;
    import org.apache.shiro.web.filter.session.NoSessionCreationFilter;
    
    import javax.servlet.Filter;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import java.util.LinkedHashMap;
    import java.util.Map;
    
    public enum DefaultFilter {
    
        anon(AnonymousFilter.class),
        authc(FormAuthenticationFilter.class),
        authcBasic(BasicHttpAuthenticationFilter.class),
        logout(LogoutFilter.class),
        noSessionCreation(NoSessionCreationFilter.class),
        perms(PermissionsAuthorizationFilter.class),
        port(PortFilter.class),
        rest(HttpMethodPermissionFilter.class),
        roles(RolesAuthorizationFilter.class),
        ssl(SslFilter.class),
        user(UserFilter.class);
    
        private final Class<? extends Filter> filterClass;
    
        private DefaultFilter(Class<? extends Filter> filterClass) {
            this.filterClass = filterClass;
        }
    
        public Filter newInstance() {
            return (Filter) ClassUtils.newInstance(this.filterClass);
        }
    
        public Class<? extends Filter> getFilterClass() {
            return this.filterClass;
        }
    
        public static Map<String, Filter> createInstanceMap(FilterConfig config) {
            Map<String, Filter> filters = new LinkedHashMap<String, Filter>(values().length);
            for (DefaultFilter defaultFilter : values()) {
                Filter filter = defaultFilter.newInstance();
                if (config != null) {
                    try {
                        filter.init(config);
                    } catch (ServletException e) {
                        String msg = "Unable to correctly init default filter instance of type " +
                                filter.getClass().getName();
                        throw new IllegalStateException(msg, e);
                    }
                }
                filters.put(defaultFilter.name(), filter);
            }
            return filters;
        }
    }