Example usage for org.apache.shiro.web.filter.mgt NamedFilterList proxy

Introduction

In this page you can find the example usage for org.apache.shiro.web.filter.mgt NamedFilterList proxy.

Prototype

FilterChain proxy(FilterChain filterChain);

Source Link

Document

Returns a new FilterChain instance that will first execute this list's Filter s (in list order) and end with the execution of the given filterChain instance.

Usage

From source file:org.tolven.shiro.web.filter.mgt.TolvenFilterChainResolver.java

License:Open Source License

@Override
public FilterChain getChain(ServletRequest servletRequest, ServletResponse servletResponse,
        FilterChain originalChain) {/*from  ww  w . j  a  va 2  s  .  co  m*/
    String requestURI = getPathWithinApplication(servletRequest);
    HttpServletRequest request = (HttpServletRequest) servletRequest;
    String urlMethod = request.getMethod();
    if (logger.isDebugEnabled()) {
        logger.debug("requestURI=" + urlMethod + " " + requestURI);
    }
    TolvenAuthorization authz = getAuthBean().getAuthorization(urlMethod, request.getContextPath(), requestURI);
    if (authz == null) {
        throw new RuntimeException(
                "authorization url cannot be found for request: " + urlMethod + " " + requestURI);
    }
    if (logger.isDebugEnabled()) {
        logger.debug("Matched TolvenAuthorization=" + authz);
    }
    String authorizationURI = authz.getUrl();
    if (!StringUtils.hasText(authorizationURI)) {
        throw new RuntimeException(
                "authorization url cannot be null or empty for request: " + urlMethod + " " + requestURI);
    }
    String filterString = authz.getFilters();
    if (filterString == null || filterString.trim().length() == 0) {
        return originalChain;
    } else {
        DefaultFilterChainManager temporaryManager = new DefaultFilterChainManager(getFilterConfig());
        boolean init = getFilterConfig() != null; //only call filter.init if there is a FilterConfig available
        if (logger.isDebugEnabled()) {
            logger.debug("Adding filters to temporary manager");
        }
        Map<String, Filter> filters = null;
        try {
            filters = getFilters(filterString);
        } catch (Exception ex) {
            throw new RuntimeException("Failed to get chain filters for: " + request.getContextPath(), ex);
        }
        for (Entry<String, Filter> entry : filters.entrySet()) {
            temporaryManager.addFilter(entry.getKey(), entry.getValue(), init);
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Added filters to temporary manager");
        }
        try {
            temporaryManager.createChain(authorizationURI, filterString);
        } catch (Exception ex) {
            throw new RuntimeException("Could not create chain: " + authorizationURI + " for filters: "
                    + filterString + " in context: " + getFilterConfig().getServletContext().getContextPath(),
                    ex);
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Created filter chain: " + authorizationURI + " with " + filterString);
        }
        NamedFilterList chain = temporaryManager.getChain(authorizationURI);
        return chain.proxy(originalChain);
    }
}

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