sascha@730: package de.intevation.flys.exports;
sascha@730: 
sascha@730: import java.io.OutputStream;
sascha@730: import java.io.OutputStreamWriter;
sascha@730: import java.io.IOException;
sascha@730: 
sascha@730: import org.w3c.dom.Document;
sascha@730: 
sascha@730: import org.apache.log4j.Logger;
sascha@730: 
sascha@730: import de.intevation.artifacts.Artifact;
sascha@730: import de.intevation.artifacts.CallContext;
sascha@730: 
ingo@1979: import de.intevation.artifactdatabase.state.ArtifactAndFacet;
ingo@1979: import de.intevation.artifactdatabase.state.Settings;
ingo@1979: 
sascha@730: import de.intevation.flys.artifacts.FLYSArtifact;
sascha@730: 
sascha@730: import de.intevation.flys.artifacts.model.WQ;
ingo@3422: import de.intevation.flys.collections.FLYSArtifactCollection;
sascha@730: 
ingo@1658: import de.intevation.flys.utils.FLYSUtils;
ingo@1658: 
ingo@1658: 
sascha@730: public class ATExporter
sascha@730: implements   OutGenerator
sascha@730: {
sascha@730:     private static Logger logger = Logger.getLogger(ATExporter.class);
sascha@730: 
sascha@730:     public static final String DEFAULT_ENCODING = "UTF-8";
sascha@730: 
sascha@730:     protected WQ           data;
sascha@730:     protected CallContext  context;
sascha@730:     protected OutputStream out;
ingo@1658:     protected FLYSArtifact master;
sascha@730: 
ingo@3422:     protected FLYSArtifactCollection collection;
ingo@3422: 
ingo@3422: 
sascha@730:     public ATExporter() {
sascha@730:     }
sascha@730: 
sascha@730:     @Override
sascha@730:     public void init(Document request, OutputStream out, CallContext context) {
sascha@730:         this.context = context;
sascha@730:         this.out     = out;
sascha@730:     }
sascha@730: 
ingo@3422: 
sascha@730:     @Override
sascha@730:     public void setMasterArtifact(Artifact master) {
ingo@1658:         this.master = (FLYSArtifact) master;
sascha@730:     }
sascha@730: 
sascha@730:     @Override
ingo@3422:     public void setCollection(FLYSArtifactCollection collection) {
ingo@3422:         this.collection = collection;
ingo@3422:     }
ingo@3422: 
ingo@3422:     @Override
ingo@1684:     public void doOut(
felix@1944:         ArtifactAndFacet artifactf,
ingo@1684:         Document attr,
ingo@1684:         boolean  visible
ingo@1684:     ) {
felix@1944:         data = (WQ)artifactf.getData(context);
sascha@730:     }
sascha@730: 
sascha@730:     @Override
sascha@730:     public void generate() throws IOException {
sascha@730: 
sascha@730:         if (data == null) {
sascha@730:             logger.debug("no W/Q data");
sascha@730:             return;
sascha@730:         }
sascha@730: 
sascha@730:         ATWriter at;
sascha@730:         try {
sascha@730:             at = new ATWriter(data);
sascha@730:         }
sascha@730:         catch (IllegalArgumentException iae) {
sascha@730:             logger.error("creating ATWriter failed", iae);
sascha@730:             throw new IOException(iae);
sascha@730:         }
sascha@730: 
ingo@1658:         String   river = FLYSUtils.getRiver(master).getName();
ingo@1658:         double[] kms   = FLYSUtils.getLocations(master);
ingo@1658: 
ingo@1658:         at.write(
ingo@1658:             new OutputStreamWriter(out, DEFAULT_ENCODING),
ingo@1658:             context.getMeta(),
ingo@1658:             river,
ingo@1658:             kms[0]);
sascha@730:     }
ingo@1979: 
ingo@1979: 
ingo@1979:     /**
ingo@1979:      * Returns an instance of <i>EmptySettings</i> currently!
ingo@1979:      *
ingo@1979:      * @return an instance of <i>EmptySettings</i>.
ingo@1979:      */
ingo@2047:     @Override
ingo@1979:     public Settings getSettings() {
ingo@1979:         return new EmptySettings();
ingo@1979:     }
ingo@2047: 
ingo@2047: 
ingo@2047:     /**
ingo@2047:      * This method is not implemented!
ingo@2047:      *
ingo@2047:      * @param settings A settings object.
ingo@2047:      */
ingo@2047:     @Override
ingo@2047:     public void setSettings(Settings settings) {
ingo@2047:         // do nothing here
ingo@2047:     }
sascha@730: }
sascha@730: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :