Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/RiverInfoService.java @ 4655:cd44d28d0fbc
Move the access to artifact data to the Access object
Use BedHeightAccess class to receive the data from the artifact. This abstracts
the data access from the actual artifact.
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 11 Dec 2012 09:44:04 +0100 |
parents | 5da024c2af62 |
children |
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package de.intevation.flys.artifacts.services; import java.math.BigDecimal; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Element; import de.intevation.artifacts.CallMeta; import de.intevation.artifacts.GlobalContext; import de.intevation.artifacts.common.ArtifactNamespaceContext; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.flys.artifacts.model.RiverFactory; import de.intevation.flys.model.River; /** * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a> */ public class RiverInfoService extends FLYSService { private static final Logger logger = Logger.getLogger( RiverInfoService.class); protected static final String RIVER_XPATH = "/art:river/text()"; protected XMLUtils.ElementCreator ec; protected River river; protected Element riverele; protected Document doProcess( Document data, GlobalContext globalContext, CallMeta callMeta ) { String rivername = XMLUtils.xpathString( data, RIVER_XPATH, ArtifactNamespaceContext.INSTANCE); river = RiverFactory.getRiver(rivername); Document result = XMLUtils.newDocument(); if (river == null) { logger.warn("No river with name " + rivername + " found."); return null; } ec = new XMLUtils.ElementCreator( result, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); riverele = ec.create("river-info"); double[] minmax = river.determineMinMaxDistance(); double[] minmaxq = river.determineMinMaxQ(); Element r = ec.create("river"); ec.addAttr(r, "name", river.getName(), true); ec.addAttr(r, "start", Double.toString(minmax[0]), true); ec.addAttr(r, "end", Double.toString(minmax[1]), true); ec.addAttr(r, "wstunit", river.getWstUnit().getName(), true); ec.addAttr(r, "kmup", Boolean.toString(river.getKmUp()), true); ec.addAttr(r, "minq", Double.toString(minmaxq[0]), true); ec.addAttr(r, "maxq", Double.toString(minmaxq[1]), true); ec.addAttr(r, "official", Long.toString(river.getOfficialNumber()), true); riverele.appendChild(r); result.appendChild(riverele); return result; } /** * Returns a Double as String from a BigDecimal value. * * If value is null an empty String is returned. */ protected static String getStringValue(BigDecimal value) { return value != null ? Double.toString(value.doubleValue()) : ""; } }