Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/exports/ChartGenerator.java @ 348:635af5381a4d
Added an abstract OutGenerator that should be the base class for all generators which create charts.
flys-artifacts/trunk@1750 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Wed, 27 Apr 2011 14:40:44 +0000 |
| parents | |
| children | 8830eecad69e |
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| 347:a63d8bdb2d79 | 348:635af5381a4d |
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| 1 package de.intevation.flys.exports; | |
| 2 | |
| 3 import java.io.IOException; | |
| 4 import java.io.OutputStream; | |
| 5 | |
| 6 import org.apache.log4j.Logger; | |
| 7 | |
| 8 import org.w3c.dom.Document; | |
| 9 | |
| 10 import de.intevation.artifacts.Artifact; | |
| 11 import de.intevation.artifacts.CallContext; | |
| 12 | |
| 13 | |
| 14 /** | |
| 15 * The base class for chart creation. It should provide some basic things that | |
| 16 * equal in all chart types. | |
| 17 * | |
| 18 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 19 */ | |
| 20 public abstract class ChartGenerator implements OutGenerator { | |
| 21 | |
| 22 private static Logger logger = Logger.getLogger(ChartGenerator.class); | |
| 23 | |
| 24 | |
| 25 /** The document of the incoming out() request.*/ | |
| 26 protected Document request; | |
| 27 | |
| 28 /** The output stream where the data should be written to.*/ | |
| 29 protected OutputStream out; | |
| 30 | |
| 31 /** The CallContext object.*/ | |
| 32 protected CallContext context; | |
| 33 | |
| 34 | |
| 35 public void init(Document request, OutputStream out, CallContext context) { | |
| 36 logger.debug("ChartGenerator.init"); | |
| 37 | |
| 38 this.request = request; | |
| 39 this.out = out; | |
| 40 this.context = context; | |
| 41 } | |
| 42 | |
| 43 | |
| 44 public abstract void doOut(Artifact artifact, Document attr); | |
| 45 | |
| 46 public abstract void generate() throws IOException; | |
| 47 } | |
| 48 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |