Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/MapInfoServiceImpl.java @ 5291:66d9389c80cb
added tables for jetties in spatial schema
author | Tom Gottfried <tom@intevation.de> |
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date | Thu, 14 Mar 2013 12:16:58 +0100 |
parents | 5014a84c0c7d |
children |
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package de.intevation.flys.client.server; import com.google.gwt.core.client.GWT; import com.google.gwt.user.server.rpc.RemoteServiceServlet; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator; 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.client.services.MapInfoService; import de.intevation.flys.client.shared.exceptions.ServerException; import de.intevation.flys.client.shared.model.BBox; import de.intevation.flys.client.shared.model.MapInfo; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Element; /** * This service fetches a document that contains meta information for a specific * chart. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class MapInfoServiceImpl extends RemoteServiceServlet implements MapInfoService { private static final Logger logger = Logger.getLogger(MapInfoServiceImpl.class); public static final String XPATH_RIVER = "/mapinfo/river/@name"; public static final String XPATH_SRID = "/mapinfo/river/srid/@value"; public static final String XPATH_BBOX = "/mapinfo/river/bbox/@value"; public static final String XPATH_RIVER_WMS = "/mapinfo/river/river-wms/@url"; public static final String XPATH_RIVER_LAYERS = "/mapinfo/river/river-wms/@layers"; public static final String XPATH_WMS_URL = "/mapinfo/river/background-wms/@url"; public static final String XPATH_WMS_LAYERS = "/mapinfo/river/background-wms/@layers"; public static final String ERROR_NO_MAPINFO_FOUND = "mapinfo_service_no_result"; @Override public MapInfo getMapInfo(String locale, String river) throws ServerException { logger.info("MapInfoServiceImpl.getMapInfo"); String url = getServletContext().getInitParameter("server-url"); Document request = getRequestDocument(river, "rivermap"); HttpClient client = new HttpClientImpl(url, locale); try { logger.debug("MapInfoServiceImpl.callService"); Document result = client.callService(url, "mapinfo", request); if (result == null) { logger.warn("MapInfo service returned no result."); throw new ServerException(ERROR_NO_MAPINFO_FOUND); } return getMapInfo(result); } catch (ConnectionException ce) { logger.error(ce, ce); } throw new ServerException(ERROR_NO_MAPINFO_FOUND); } public static Document getRequestDocument(String rivername, String maptypeStr) { logger.debug("MapInfoServiceImpl.getRequestDocument"); Document request = XMLUtils.newDocument(); ElementCreator cr = new ElementCreator(request, null, null); Element root = cr.create("mapinfo"); Element river = cr.create("river"); Element maptype = cr.create("maptype"); river.setTextContent(rivername); maptype.setTextContent(maptypeStr); request.appendChild(root); root.appendChild(river); root.appendChild(maptype); return request; } public static MapInfo getMapInfo(Document result) { logger.debug("MapInfoServiceImpl.getMapInfo"); String river = XMLUtils.xpathString(result, XPATH_RIVER, null); String sridStr = XMLUtils.xpathString(result, XPATH_SRID, null); String bboxS = XMLUtils.xpathString(result, XPATH_BBOX, null); BBox bbox = BBox.getBBoxFromString(bboxS); String riverWMS = XMLUtils.xpathString(result, XPATH_RIVER_WMS, null); String riverLayers = XMLUtils.xpathString(result, XPATH_RIVER_LAYERS, null); String wmsURL = XMLUtils.xpathString(result, XPATH_WMS_URL, null); String wmsLayers = XMLUtils.xpathString(result, XPATH_WMS_LAYERS, null); int srid = 4326; try { srid = Integer.parseInt(sridStr); } catch (NumberFormatException nfe) { GWT.log("Could not parse SRID String: " + sridStr); } return new MapInfo( river, srid, bbox, riverWMS, riverLayers, wmsURL, wmsLayers); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :