Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/exports/DefaultExport.java @ 765:f28a7eac542a

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Integrated valid ODV-Export to the GNV-Artifacts gnv-artifacts/trunk@821 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 23 Mar 2010 14:09:03 +0000
parents e964a3d8f7bc
children a0e63136954e
rev   line source
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1 package de.intevation.gnv.exports;
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2
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3 import java.io.IOException;
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4 import java.io.OutputStream;
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5 import java.io.OutputStreamWriter;
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6 import java.io.UnsupportedEncodingException;
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7 import java.util.Collection;
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8 import java.util.Iterator;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import au.com.bytecode.opencsv.CSVWriter;
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13 import de.intevation.gnv.geobackend.base.Result;
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14 import de.intevation.gnv.state.exception.StateException;
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15
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16 /**
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17 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
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18 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de)
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19 */
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20 public class DefaultExport
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21 implements Export
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22 {
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23 private static Logger log = Logger.getLogger(DefaultExport.class);
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24
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25 protected Export.DataCollector collector;
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26
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27 public DefaultExport(Export.DataCollector collector) {
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28 this.collector = collector;
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29 }
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30
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31 protected void writeData(
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32 Profile profile,
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33 Collection result,
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34 CSVWriter writer
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35 )
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36 throws StateException {
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37 log.debug("create content for export.");
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38 Iterator<Result> it = result.iterator();
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39
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40 String[] header = profile.getHeader();
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41 if (header != null)
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42 writer.writeNext(header);
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44 while (it.hasNext()) {
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45 Result res = it.next();
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46
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47 writer.writeNext(collector.getData(res));
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48 }
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49 }
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50
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51 public void create(
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52 Profile profile,
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53 OutputStream outputStream,
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54 Collection result
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55 )
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56 throws
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57 IOException,
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58 UnsupportedEncodingException,
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59 StateException
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60 {
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61 if (result == null) {
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62 String msg = "No data given for generation of " +
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63 profile.getType() + " file.";
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64 log.error(msg);
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65 throw new StateException(msg);
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66 }
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67
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68 CSVWriter writer = new CSVWriter(
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69 new OutputStreamWriter(
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70 outputStream,
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71 profile.getEncoding()),
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72 profile.getSeparator(),
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73 profile.getQuoteCharacter(),
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74 profile.getEscapeCharacter());
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75
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76 writeData(profile, result, writer);
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77
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78 writer.close();
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79 }
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80 }
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