package org.jboss.windup.reporting.xml;
import static org.joox.JOOX.$;
import org.apache.commons.lang3.StringUtils;
import org.jboss.windup.config.exception.ConfigurationException;
import org.jboss.windup.config.parser.ElementHandler;
import org.jboss.windup.config.parser.NamespaceElementHandler;
import org.jboss.windup.config.parser.ParserContext;
import org.jboss.windup.config.parser.xml.RuleProviderHandler;
import org.jboss.windup.reporting.config.Link;
import org.jboss.windup.util.exception.WindupException;
import org.w3c.dom.Element;
/**
* Adds the provided {@link Link} operation to the currently selected items.
*
* Expected format:
*
* <pre>
* <link href="http://www.foo.com/" description="Helpful text" />
* </pre>
*
* @author <a href="mailto:jesse.sightler@gmail.com">Jesse Sightler</a>
*/
@NamespaceElementHandler(elementName = LinkHandler.ELEMENT_NAME, namespace = RuleProviderHandler.WINDUP_RULE_NAMESPACE)
public class LinkHandler implements ElementHandler<Link>
{
static final String ELEMENT_NAME = "link";
private static final String HREF_ATTR = "href";
private static final String TITLE_ATTR = "title";
@Override
public Link processElement(ParserContext handlerManager, Element element) throws ConfigurationException
{
String link = $(element).attr(HREF_ATTR);
if (StringUtils.isBlank(link))
{
throw new WindupException("Error, '" + ELEMENT_NAME + "' element must have a non-empty '" + HREF_ATTR
+ "' attribute (eg, 'http://www.example.com/somepage.html')");
}
String title = $(element).attr(TITLE_ATTR);
if (StringUtils.isBlank(title))
{
throw new WindupException(
"Error, '" + ELEMENT_NAME + "' element must have a non-empty '" + TITLE_ATTR
+ "' attribute (eg, 'Documentation for XYZ')");
}
return Link.to(title, link);
}
}