public void visit()

in java/org/apache/jasper/compiler/Validator.java [101:211]
101 lines of code
46 McCabe index (conditional complexity)

        public void visit(Node.PageDirective n) throws JasperException {

            JspUtil.checkAttributes("Page directive", n, pageDirectiveAttrs, err);

            // JSP.2.10.1
            Attributes attrs = n.getAttributes();
            for (int i = 0; attrs != null && i < attrs.getLength(); i++) {
                String attr = attrs.getQName(i);
                String value = attrs.getValue(i);

                if ("language".equals(attr)) {
                    if (pageInfo.getLanguage(false) == null) {
                        pageInfo.setLanguage(value, n, err, true);
                    } else if (!pageInfo.getLanguage(false).equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.language", pageInfo.getLanguage(false), value);
                    }
                } else if ("extends".equals(attr)) {
                    if (pageInfo.getExtends(false) == null) {
                        pageInfo.setExtends(value);
                    } else if (!pageInfo.getExtends(false).equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.extends", pageInfo.getExtends(false), value);
                    }
                } else if ("contentType".equals(attr)) {
                    if (pageInfo.getContentType() == null) {
                        pageInfo.setContentType(value);
                    } else if (!pageInfo.getContentType().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.contenttype", pageInfo.getContentType(), value);
                    }
                } else if ("session".equals(attr)) {
                    if (pageInfo.getSession() == null) {
                        pageInfo.setSession(value, n, err);
                    } else if (!pageInfo.getSession().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.session", pageInfo.getSession(), value);
                    }
                } else if ("buffer".equals(attr)) {
                    if (pageInfo.getBufferValue() == null) {
                        pageInfo.setBufferValue(value, n, err);
                    } else if (!pageInfo.getBufferValue().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.buffer", pageInfo.getBufferValue(), value);
                    }
                } else if ("autoFlush".equals(attr)) {
                    if (pageInfo.getAutoFlush() == null) {
                        pageInfo.setAutoFlush(value, n, err);
                    } else if (!pageInfo.getAutoFlush().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.autoflush", pageInfo.getAutoFlush(), value);
                    }
                } else if ("isELIgnored".equals(attr)) {
                    if (pageInfo.getIsELIgnored() == null) {
                        pageInfo.setIsELIgnored(value, n, err, true);
                    } else if (!pageInfo.getIsELIgnored().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.iselignored", pageInfo.getIsELIgnored(), value);
                    }
                } else if ("errorOnELNotFound".equals(attr)) {
                    if (pageInfo.getErrorOnELNotFound() == null) {
                        pageInfo.setErrorOnELNotFound(value, n, err, true);
                    } else if (!pageInfo.getErrorOnELNotFound().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.errorOnELNotFound", pageInfo.getErrorOnELNotFound(),
                                value);
                    }
                } else if ("isErrorPage".equals(attr)) {
                    if (pageInfo.getIsErrorPage() == null) {
                        pageInfo.setIsErrorPage(value, n, err);
                    } else if (!pageInfo.getIsErrorPage().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.iserrorpage", pageInfo.getIsErrorPage(), value);
                    }
                } else if ("errorPage".equals(attr)) {
                    if (pageInfo.getErrorPage() == null) {
                        pageInfo.setErrorPage(value);
                    } else if (!pageInfo.getErrorPage().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.errorpage", pageInfo.getErrorPage(), value);
                    }
                } else if ("info".equals(attr)) {
                    if (pageInfo.getInfo() == null) {
                        pageInfo.setInfo(value);
                    } else if (!pageInfo.getInfo().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.info", pageInfo.getInfo(), value);
                    }
                } else if ("pageEncoding".equals(attr)) {
                    if (pageEncodingSeen) {
                        err.jspError(n, "jsp.error.page.multi.pageencoding");
                    }
                    // 'pageEncoding' can occur at most once per file
                    pageEncodingSeen = true;
                    String actual = comparePageEncodings(value, n);
                    n.getRoot().setPageEncoding(actual);
                } else if ("deferredSyntaxAllowedAsLiteral".equals(attr)) {
                    if (pageInfo.getDeferredSyntaxAllowedAsLiteral() == null) {
                        pageInfo.setDeferredSyntaxAllowedAsLiteral(value, n, err, true);
                    } else if (!pageInfo.getDeferredSyntaxAllowedAsLiteral().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.deferredsyntaxallowedasliteral",
                                pageInfo.getDeferredSyntaxAllowedAsLiteral(), value);
                    }
                } else if ("trimDirectiveWhitespaces".equals(attr)) {
                    if (pageInfo.getTrimDirectiveWhitespaces() == null) {
                        pageInfo.setTrimDirectiveWhitespaces(value, n, err, true);
                    } else if (!pageInfo.getTrimDirectiveWhitespaces().equals(value)) {
                        err.jspError(n, "jsp.error.page.conflict.trimdirectivewhitespaces",
                                pageInfo.getTrimDirectiveWhitespaces(), value);
                    }
                }
            }

            // Check for bad combinations
            if (pageInfo.getBuffer() == 0 && !pageInfo.isAutoFlush()) {
                err.jspError(n, "jsp.error.page.badCombo");
            }

            // Attributes for imports for this node have been processed by
            // the parsers, just add them to pageInfo.
            pageInfo.addImports(n.getImports());
        }