Mercurial > dive4elements > river
comparison artifacts/src/main/java/org/dive4elements/river/artifacts/states/sq/SQPeriodSelect.java @ 8620:8737de2ca763
Send default values for SQ Period selection to the client.
| author | Andre Heinecke <andre.heinecke@intevation.de> |
|---|---|
| date | Wed, 25 Mar 2015 19:20:13 +0100 |
| parents | af13ceeba52a |
| children | 1125e598df0e |
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| 8619:156980fb3cb9 | 8620:8737de2ca763 |
|---|---|
| 6 * documentation coming with Dive4Elements River for details. | 6 * documentation coming with Dive4Elements River for details. |
| 7 */ | 7 */ |
| 8 | 8 |
| 9 package org.dive4elements.river.artifacts.states.sq; | 9 package org.dive4elements.river.artifacts.states.sq; |
| 10 | 10 |
| 11 import java.util.Date; | |
| 12 import java.util.List; | |
| 13 import java.util.Collections; | |
| 14 | |
| 15 import org.apache.log4j.Logger; | |
| 16 | |
| 17 import org.w3c.dom.Element; | |
| 18 | |
| 11 import org.dive4elements.river.artifacts.states.PeriodsSelect; | 19 import org.dive4elements.river.artifacts.states.PeriodsSelect; |
| 20 import org.dive4elements.river.artifacts.access.RangeAccess; | |
| 21 import org.dive4elements.river.artifacts.D4EArtifact; | |
| 22 import org.dive4elements.river.artifacts.model.SQOverview; | |
| 23 import org.dive4elements.river.artifacts.model.SQOverviewFactory; | |
| 24 import org.dive4elements.river.artifacts.model.SQOverview.KmFilter; | |
| 25 | |
| 26 import org.dive4elements.river.utils.KMIndex; | |
| 27 | |
| 28 import org.dive4elements.artifacts.common.utils.XMLUtils; | |
| 29 import org.dive4elements.artifacts.Artifact; | |
| 30 import org.dive4elements.artifacts.CallContext; | |
| 31 | |
| 32 import org.dive4elements.artifactdatabase.data.StateData; | |
| 12 | 33 |
| 13 public class SQPeriodSelect extends PeriodsSelect { | 34 public class SQPeriodSelect extends PeriodsSelect { |
| 35 | |
| 36 private static Logger log = Logger.getLogger(SQPeriodSelect.class); | |
| 14 | 37 |
| 15 public static final String UI_PROVIDER = "sq.period.select"; | 38 public static final String UI_PROVIDER = "sq.period.select"; |
| 16 | 39 |
| 17 private static final long serialVersionUID = 1L; | 40 private static final long serialVersionUID = 1L; |
| 18 | 41 |
| 42 /** Get either the start date of the data or the end. */ | |
| 43 protected long getDataMinMaxDate(Artifact artifact, boolean minDate) { | |
| 44 D4EArtifact arti = (D4EArtifact) artifact; | |
| 45 RangeAccess access = new RangeAccess(arti); | |
| 46 double km = access.getLocations()[0]; | |
| 47 | |
| 48 /* Bit of an overkill here but it will be cached and accessed | |
| 49 * in the next state anyway. */ | |
| 50 SQOverview overview = SQOverviewFactory.getOverview(access.getRiverName()); | |
| 51 | |
| 52 KMIndex<List<Date>> entries = overview.filter(new KmFilter(km)); | |
| 53 if (entries.size() == 0) { | |
| 54 return 0; | |
| 55 } | |
| 56 List<Date> dates = entries.get(0).getValue(); | |
| 57 if (dates.isEmpty()) { | |
| 58 return 0; | |
| 59 } | |
| 60 Collections.sort(dates); | |
| 61 | |
| 62 return minDate ? dates.get(0).getTime() : dates.get(dates.size() - 1).getTime(); | |
| 63 } | |
| 64 | |
| 65 @Override | |
| 66 protected Element[] createItems( | |
| 67 XMLUtils.ElementCreator cr, | |
| 68 Artifact artifact, | |
| 69 String name, | |
| 70 CallContext context) | |
| 71 { | |
| 72 if (!name.equals("start") && !name.equals("end")) { | |
| 73 return null; | |
| 74 } | |
| 75 Element def = createItem( | |
| 76 cr, | |
| 77 new String[] {"default", Long.toString( | |
| 78 getDataMinMaxDate(artifact, name.equals("start")))}); | |
| 79 | |
| 80 return new Element[] { def }; | |
| 81 } | |
| 19 | 82 |
| 20 @Override | 83 @Override |
| 21 public String getUIProvider() { | 84 public String getUIProvider() { |
| 22 return UI_PROVIDER; | 85 return UI_PROVIDER; |
| 23 } | 86 } |