public long getTimestamp()

in src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMFileSystem.java [400:445]
45 lines of code
9 McCabe index (conditional complexity)

        public long getTimestamp(@NonNull String remote, StandardCredentials credentials, @NonNull String refOrHash)
                throws IOException, InterruptedException {
            if (refOrHash.startsWith(Constants.R_TAGS)) {
                String tagUrl = buildTemplateWithRemote("{+server}{?p}{;a,h}", remote)
                        .set("a", "tag")
                        .set("h", refOrHash)
                        .expand();
                Document doc;
                try {
                    doc = fetchDocument(tagUrl);
                } catch (HttpStatusException e) {
                    if (e.getStatusCode() == 404) {
                        // must be a lightweight tag
                        doc = null;
                    } else {
                        throw e;
                    }
                }
                if (doc != null) {
                    Elements elements = doc.select("table.object_header tr td span.datetime");
                    try {
                        return new SimpleDateFormat(RFC_2822).parse(elements.get(0).text())
                                .getTime();
                    } catch (ParseException e) {
                        throw new IOException(
                                "Unexpected date format, expected RFC 2822, got " + elements.get(1).text());
                    } catch (IndexOutOfBoundsException e) {
                        throw new IOException(
                                "Unexpected response body for page " + tagUrl + ", expecting two timestamps only got " + elements.size());
                    }
                }
            }
            String commitUrl = buildTemplateWithRemote("{+server}{?p}{;a,h}", remote)
                    .set("a", "commit")
                    .set("h", refOrHash)
                    .expand();
            Document doc = fetchDocument(commitUrl);
            Elements elements = doc.select("table.object_header tr td span.datetime");
            try {
                return new SimpleDateFormat(RFC_2822).parse(elements.get(1).text()).getTime();
            } catch (ParseException e) {
                throw new IOException("Unexpected date format, expected RFC 2822, got " + elements.get(1).text());
            } catch (IndexOutOfBoundsException e) {
                throw new IOException("Unexpected response body, expecting two timestamps only got " + elements.size());
            }
        }