Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/exports/DefaultExport.java @ 335:e964a3d8f7bc

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Some Refactoring work done. Moved Transition to State gnv-artifacts/trunk@401 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 08 Dec 2009 08:39:03 +0000
parents 3ea030aafe65
children f28a7eac542a
rev   line source
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1 package de.intevation.gnv.exports;
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2
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3 import org.apache.log4j.Logger;
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4
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5 import au.com.bytecode.opencsv.CSVWriter;
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6
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7 import java.util.Iterator;
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8 import java.util.Collection;
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9
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10 import java.io.UnsupportedEncodingException;
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11 import java.io.IOException;
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12 import java.io.OutputStreamWriter;
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13 import java.io.OutputStream;
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14
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15 import de.intevation.gnv.geobackend.base.Result;
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16
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17 import de.intevation.gnv.state.exception.StateException;
230
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18
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19 /**
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20 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
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21 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de)
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22 */
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23 public class DefaultExport
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24 implements Export
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25 {
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26 private static Logger log = Logger.getLogger(DefaultExport.class);
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27
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28 private Export.DataCollector collector;
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29
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30 public DefaultExport(Export.DataCollector collector) {
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31 this.collector = collector;
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32 }
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33
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34 protected void writeData(
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35 Profile profile,
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36 Collection result,
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37 CSVWriter writer
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38 )
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39 throws StateException {
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40 log.debug("create content for export.");
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41 Iterator<Result> it = result.iterator();
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43 String[] header = profile.getHeader();
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44 if (header != null)
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45 writer.writeNext(header);
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46
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47 while (it.hasNext()) {
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48 Result res = it.next();
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49
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50 writer.writeNext(collector.getData(res));
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51 }
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52 }
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53
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54 public void create(
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55 Profile profile,
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56 OutputStream outputStream,
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57 Collection result
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58 )
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59 throws
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60 IOException,
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61 UnsupportedEncodingException,
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62 StateException
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63 {
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64 if (result == null) {
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65 String msg = "No data given for generation of " +
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66 profile.getType() + " file.";
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67 log.error(msg);
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68 throw new StateException(msg);
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69 }
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70
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71 CSVWriter writer = new CSVWriter(
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72 new OutputStreamWriter(
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73 outputStream,
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74 profile.getEncoding()),
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75 profile.getSeparator(),
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76 profile.getQuoteCharacter(),
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77 profile.getEscapeCharacter());
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78
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79 writeData(profile, result, writer);
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80
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81 writer.close();
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82 }
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83 }
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