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: 
sascha@730: import de.intevation.flys.artifacts.FLYSArtifact;
sascha@730: 
sascha@730: import de.intevation.artifactdatabase.state.Facet;
sascha@730: 
sascha@730: import de.intevation.flys.artifacts.model.WQ;
sascha@730: 
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;
sascha@730: 
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: 
sascha@730:     @Override
sascha@730:     public void setMasterArtifact(Artifact master) {
sascha@730:         // not needed
sascha@730:     }
sascha@730: 
sascha@730:     @Override
sascha@730:     public void doOut(Artifact artifact, Facet facet, Document attr) {
sascha@730: 
sascha@730:         FLYSArtifact flys = (FLYSArtifact)artifact;
sascha@730: 
sascha@730:         if ((facet = flys.getNativeFacet(facet)) == null) {
sascha@730:             logger.debug("native facet not found.");
sascha@730:             return;
sascha@730:         }
sascha@730: 
sascha@730:         data = (WQ)facet.getData(flys, 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: 
sascha@730:         at.write(new OutputStreamWriter(out, DEFAULT_ENCODING));
sascha@730:     }
sascha@730: }
sascha@730: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :