import javax.validation.constraints.Size;

import org.lastaflute.web.validation.Required;

public class CacheForm {

    @Required
    @Size(max = 100)
    public String docId;

    public String[] hq;

    // for error page

    public String q;

    public String num;

    public String sort;

    public String lang;

    public Map<String, String[]> fields = new HashMap<>();

            saveError(messages -> messages.addErrorsDocidNotFound(GLOBAL, form.docId));
            return redirect(ErrorAction.class);
        }

        final String content = viewHelper.createCacheContent(doc, form.hq);
        if (content == null) {
            saveError(messages -> messages.addErrorsDocidNotFound(GLOBAL, form.docId));
            return redirect(ErrorAction.class);
        }