Mercurial > dive4elements > river
changeset 6457:41152c3a532d 3.0.9
Add ServerInfoService (currently inactive).
author | Christian Lins <christian.lins@intevation.de> |
---|---|
date | Wed, 26 Jun 2013 23:07:24 +0200 (2013-06-26) |
parents | 0624d3a0a63e |
children | e79014cc68c4 |
files | artifacts/src/main/java/org/dive4elements/river/artifacts/services/ServerInfoService.java |
diffstat | 1 files changed, 56 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/services/ServerInfoService.java Wed Jun 26 23:07:24 2013 +0200 @@ -0,0 +1,56 @@ +package org.dive4elements.river.artifacts.services; + +import javax.xml.xpath.XPathConstants; + +import org.apache.log4j.Logger; +import org.dive4elements.artifacts.CallMeta; +import org.dive4elements.artifacts.GlobalContext; +import org.dive4elements.artifacts.common.ArtifactNamespaceContext; +import org.dive4elements.artifacts.common.utils.Config; +import org.dive4elements.artifacts.common.utils.XMLUtils; +import org.w3c.dom.Document; +import org.w3c.dom.Element; + +/** + * Through this service the client can retrieve basic information about or + * configuration of the artifact server. + * Currently it only returns the help-url (wiki) to the client. + * + * @author <a href="mailto:christian.lins@intevation.de">Christian Lins</a> + */ +public class ServerInfoService extends D4EService { + + /** The logger used in this service.*/ + private static Logger logger = Logger.getLogger(ServerInfoService.class); + + private static final String XPATH_HELP_URL = "/artifact-database/help-url/text()"; + + @Override + protected Document doProcess(Document data, GlobalContext globalContext, + CallMeta callMeta) { + logger.debug("ServerInfoService.process"); + + Document result = XMLUtils.newDocument(); + + XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( + result, + ArtifactNamespaceContext.NAMESPACE_URI, + ArtifactNamespaceContext.NAMESPACE_PREFIX); + + Element serverInfo = ec.create("server"); + + String helpUrl = (String) XMLUtils.xpath( + Config.getConfig(), + XPATH_HELP_URL, + XPathConstants.STRING); + + Element info = ec.create("info"); + ec.addAttr(info, "key", "help-url", true); + ec.addAttr(info, "value", helpUrl, true); + + result.appendChild(serverInfo); + + return result; + } + +}