Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/DischargeInfoServiceImpl.java @ 5622:b28a6d05e969
Add a new mechanism in mapfish print call to add arbitary data maps
Data properties are identified by starting with mapfish-data
and they are then split in info value pairs where info
can be the description of the information and value the value
of the information to be transported in the data map.
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Tue, 09 Apr 2013 19:04:32 +0200 |
parents | 67468c90ca68 |
children |
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package de.intevation.flys.client.server; import java.util.ArrayList; import java.util.List; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; import org.apache.log4j.Logger; import com.google.gwt.user.server.rpc.RemoteServiceServlet; import de.intevation.artifacts.common.ArtifactNamespaceContext; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.artifacts.httpclient.exceptions.ConnectionException; import de.intevation.artifacts.httpclient.http.HttpClient; import de.intevation.artifacts.httpclient.http.HttpClientImpl; import de.intevation.flys.client.shared.exceptions.ServerException; import de.intevation.flys.client.client.services.DischargeInfoService; import de.intevation.flys.client.shared.model.DischargeInfoObject; import de.intevation.flys.client.shared.model.DischargeInfoObjectImpl; /** * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> */ public class DischargeInfoServiceImpl extends RemoteServiceServlet implements DischargeInfoService { private static final Logger logger = Logger.getLogger(DischargeInfoServiceImpl.class); public static final String ERROR_NO_DISCHARGEINFO_FOUND = "error_no_dischargeinfo_found"; public static final String XPATH_DISTANCES = "art:discharges/art:discharge"; public DischargeInfoObject[] getDischargeInfo( String locale, long gauge) throws ServerException { logger.info("DichargeInfoServiceImpl.getDischargeInfo"); String url = getServletContext().getInitParameter("server-url"); Document doc = XMLUtils.newDocument(); XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( doc, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element gaugeEl = ec.create("gauge"); gaugeEl.setTextContent(String.valueOf(gauge)); doc.appendChild(gaugeEl); HttpClient client = new HttpClientImpl(url, locale); try { Document result = client.callService(url, "dischargeinfo", doc); logger.debug("Extract discharge info objects now."); DischargeInfoObject[] objects = extractDischargeInfoObjects(result); if (objects != null && objects.length > 0) { return objects; } } catch (ConnectionException ce) { logger.error(ce, ce); } throw new ServerException(ERROR_NO_DISCHARGEINFO_FOUND); } protected DischargeInfoObject[] extractDischargeInfoObjects( Document result ) throws ServerException { NodeList list = result.getElementsByTagName("discharge"); if (list == null || list.getLength() == 0) { logger.warn("No discharge info found."); throw new ServerException(ERROR_NO_DISCHARGEINFO_FOUND); } int num = list.getLength(); logger.debug("Response contains " + num + " objects."); List<DischargeInfoObject> objects = new ArrayList<DischargeInfoObject>(num); for (int i = 0; i < num; i++) { DischargeInfoObject obj = buildDischargeInfoObject( (Element)list.item(i)); if (obj != null) { objects.add(obj); } } logger.debug("Retrieved " + objects.size() + " discharges."); return (DischargeInfoObject[]) objects.toArray(new DischargeInfoObject[num]); } protected DischargeInfoObject buildDischargeInfoObject(Element node) { String desc = node.getAttribute("description").trim(); String start = node.getAttribute("start").trim(); String end = node.getAttribute("end").trim(); if (start.length() > 0 && end.length() > 0) { try { Integer startYear = new Integer(start); Integer endYear = new Integer(end); return new DischargeInfoObjectImpl(desc, startYear, endYear); } catch (NumberFormatException nfe) { logger.warn(nfe.getLocalizedMessage()); } } logger.warn("Invalid distance info object found."); return null; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :