public void renderUrl()

in core/src/main/java/org/apache/struts2/components/ServletUrlRenderer.java [75:134]
49 lines of code
17 McCabe index (conditional complexity)

    public void renderUrl(Writer writer, UrlProvider urlComponent) {
        String scheme = urlComponent.getHttpServletRequest().getScheme();

        if (urlComponent.getScheme() != null) {
            ValueStack vs = ActionContext.getContext().getValueStack();
            scheme = vs.findString(urlComponent.getScheme());
            if (scheme == null) {
                scheme = urlComponent.getScheme();
            }
        }

        String result;
        ActionInvocation ai = ActionContext.getContext().getActionInvocation();
        if (urlComponent.getValue() == null && urlComponent.getAction() != null) {
            result = urlComponent.determineActionURL(urlComponent.getAction(), urlComponent.getNamespace(), urlComponent.getMethod(), urlComponent.getHttpServletRequest(), urlComponent.getHttpServletResponse(), urlComponent.getParameters(), scheme, urlComponent.isIncludeContext(), urlComponent.isEncode(), urlComponent.isForceAddSchemeHostAndPort(), urlComponent.isEscapeAmp());
        } else if (urlComponent.getValue() == null && urlComponent.getAction() == null && ai != null) {
            // both are null, we will default to the current action

            final String action = ai.getProxy().getActionName();
            final String namespace = ai.getProxy().getNamespace();
            final String method = urlComponent.getMethod() != null || !ai.getProxy().isMethodSpecified() ? urlComponent.getMethod() : ai.getProxy().getMethod();
            result = urlComponent.determineActionURL(action, namespace, method, urlComponent.getHttpServletRequest(), urlComponent.getHttpServletResponse(), urlComponent.getParameters(), scheme, urlComponent.isIncludeContext(), urlComponent.isEncode(), urlComponent.isForceAddSchemeHostAndPort(), urlComponent.isEscapeAmp());
        } else {
            String _value = urlComponent.getValue();

            // We don't include the request parameters cause they would have been
            // prioritised before this [in start(Writer) method]
            if (_value != null && _value.indexOf('?') > 0) {
                _value = _value.substring(0, _value.indexOf('?'));
            }
            result = urlHelper.buildUrl(_value, urlComponent.getHttpServletRequest(), urlComponent.getHttpServletResponse(), urlComponent.getParameters(), scheme, urlComponent.isIncludeContext(), urlComponent.isEncode(), urlComponent.isForceAddSchemeHostAndPort(), urlComponent.isEscapeAmp());
        }
        if (StringUtils.isNotEmpty(urlComponent.getAnchor())) {
            String anchor = urlComponent.findString(urlComponent.getAnchor());
            result += '#' + anchor;
        }

        if (urlComponent.isPutInContext()) {
            String var = urlComponent.getVar();
            if (StringUtils.isNotEmpty(var)) {
                urlComponent.putInContext(result);

                // Note: Old comments stated that var was placed in the page scope, but interactive checks with EL on JSPs prove otherwise.
                // Add the var attribute to the request scope as well.
                urlComponent.getHttpServletRequest().setAttribute(var, result);
            } else {
                try {
                    writer.write(result);
                } catch (IOException e) {
                    throw new StrutsException("IOError: " + e.getMessage(), e);
                }
            }
        } else {
            try {
                writer.write(result);
            } catch (IOException e) {
                throw new StrutsException("IOError: " + e.getMessage(), e);
            }
        }
    }