package org.jboss.windup.config.parser.metadata;
import org.apache.commons.lang3.StringUtils;
import org.jboss.forge.furnace.versions.VersionException;
import org.jboss.forge.furnace.versions.VersionRange;
import org.jboss.forge.furnace.versions.Versions;
import org.jboss.windup.config.exception.ConfigurationException;
import org.jboss.windup.config.metadata.TechnologyReference;
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.WindupXMLRulesetParsingException;
import org.jboss.windup.config.parser.xml.RuleProviderHandler;
import org.w3c.dom.Element;
/**
* Provides support for parsing a technology id and version range into a {@link TechnologyReference} object.
*
* @author <a href="mailto:jesse.sightler@gmail.com">Jesse Sightler</a>
*/
@NamespaceElementHandler(elementName = MetadataTechnologyHandler.TECHNOLOGY_ELEMENT, namespace = RuleProviderHandler.WINDUP_RULE_NAMESPACE)
public abstract class MetadataTechnologyHandler implements ElementHandler<TechnologyReference>
{
public static final String TECHNOLOGY_ELEMENT = "technology";
private static final String ID = "id";
private static final String VERSION_RANGE = "versionRange";
@Override
public TechnologyReference processElement(ParserContext handlerManager, Element element) throws ConfigurationException
{
String id = element.getAttribute(ID);
String versionRangeString = element.getAttribute(VERSION_RANGE);
if (StringUtils.isBlank(id))
{
throw new WindupXMLRulesetParsingException("The '" + element.getTagName() + "' element must have a non-empty '" + ID + "' attribute");
}
VersionRange versionRange = null;
if (StringUtils.isNotBlank(versionRangeString))
{
try
{
versionRange = Versions.parseVersionRange(versionRangeString);
}
catch (VersionException ex)
{
throw new WindupXMLRulesetParsingException("The '" + VERSION_RANGE + "' attribute with value \"" + versionRangeString
+ "\" in the element "
+ element.getTagName() + " is not a valid version", ex);
}
}
return new TechnologyReference(id, versionRange);
}
}