Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/DischargeState.java @ 2712:ed612b85fb6d
Implemented SoundingsSelect.getOptions() and SoundingsSelect.getLabelFor().
flys-artifacts/trunk@4435 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Fri, 18 May 2012 07:03:38 +0000 |
parents | 71f072d8b3d8 |
children | 4a76da133144 |
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package de.intevation.flys.artifacts.states; import java.util.List; import org.apache.log4j.Logger; import de.intevation.artifacts.Artifact; import de.intevation.artifacts.CallContext; import de.intevation.artifacts.common.model.KVP; import de.intevation.flys.model.DischargeZone; import de.intevation.flys.model.River; import de.intevation.flys.artifacts.FLYSArtifact; import de.intevation.flys.utils.FLYSUtils; public class DischargeState extends MultiIntArrayState { public static final String MAIN_CHANNEL = "main.channel"; public static final String TOTAL_CHANNEL = "total.channel"; private static final Logger logger = Logger.getLogger(DischargeState.class); @Override public String getUIProvider() { return "parameter-matrix"; } /** * This method fetches all DischargeZones for a given river (extracted from * <i>artifact</i>) and returns a KVP[] where the key is the ID of the * DischargeZone and the value is a string that consists of lower discharge * and upper discharge. * * @param artifact Needs to be a FLYSArtifact that provides river * information. * @param parameterName The name of a parameter. * * @return a KVP[]. */ @Override protected KVP<Integer, String>[] getOptions( Artifact artifact, String parameterName ) throws IllegalArgumentException { if (!testParameterName(parameterName)) { throw new IllegalArgumentException( "Invalid parameter for state: '" + parameterName + "'"); } List<DischargeZone> zones = getDischargeZones(artifact); KVP[] kvp = new KVP[zones.size()]; for (int i = 0; i < zones.size(); i++) { DischargeZone zone = zones.get(i); String lower = zone.getLowerDischarge(); String upper = zone.getUpperDischarge(); if (lower.equals(upper)) { kvp[i] = new KVP(zone.getId(), lower); } else { kvp[i] = new KVP(zone.getId(), lower + " - " + upper); } } return kvp; } @Override protected String getLabelFor( CallContext cc, String parameterName, int value ) throws IllegalArgumentException { if (!testParameterName(parameterName)) { throw new IllegalArgumentException( "Invalid parameter for state: '" + parameterName + "'"); } DischargeZone zone = DischargeZone.getDischargeZoneById(value); if (zone == null) { throw new IllegalArgumentException( "Invalid id for DischargeZone: '" + value + "'"); } String lo = zone.getLowerDischarge(); String hi = zone.getUpperDischarge(); return hi != null && lo.equals(hi) ? lo + " - " + hi : lo; } /** * This method might be used to test, if a parameter name is handled by this * state. * * @param parameterName The name of a parameter. * * @return true, if parameterName is one of <i>MAIN_CHANNEL</i> or * <i>TOTAL_CHANNEL</i>. Otherwise false. */ protected boolean testParameterName(String parameterName) { if (parameterName == null || parameterName.length() == 0) { return false; } else if (parameterName.equals(MAIN_CHANNEL)) { return true; } else if (parameterName.equals(TOTAL_CHANNEL)) { return true; } else { return false; } } /** * Returns all discharge zones for a given river. The river information is * extracted from <i>artifact</i> using FLYSUtils.getRiver(). * * @param artifact Needs to be a FLYSArtifact that stores a rivername. * * @return a list of DischargeZones. * * @throws IllegalArgumentException if no river information is provided by * <i>artifact</i>. */ protected List<DischargeZone> getDischargeZones(Artifact artifact) throws IllegalArgumentException { River river = FLYSUtils.getRiver((FLYSArtifact) artifact); if (river == null) { throw new IllegalArgumentException("No river found"); } List<DischargeZone> zones = DischargeZone.getDischargeZones(river); logger.debug("Found " + zones.size() + " DischargeZones."); return zones; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :