Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/exports/StepCSVWriter.java @ 8225:724081af301c
Pass request document to the context injectors.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Mon, 08 Sep 2014 16:14:43 +0200 |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.exports; |
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10 |
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11 import au.com.bytecode.opencsv.CSVWriter; |
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12 |
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13 import java.util.ArrayList; |
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14 import java.util.Arrays; |
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15 |
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16 /** |
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17 * Class to overcome shortcoming of CSVWriter to accept String-Arrays only. |
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18 * The StepCSVWriter buffers incoming values, such that rows in a csv can be |
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19 * created more dynamically. Do not forget to call flush(). |
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20 */ |
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21 public class StepCSVWriter { |
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22 |
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23 /** Writer to use when calling flush. */ |
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24 CSVWriter writer = null; |
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25 /** Buffer of strings (values). */ |
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26 ArrayList<String> buffer; |
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27 |
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28 |
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29 /** Trivial constructor. */ |
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30 public StepCSVWriter() { |
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31 buffer = new ArrayList<String>(); |
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32 } |
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33 |
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34 |
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35 /** Set writer. */ |
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36 public void setCSVWriter(CSVWriter writer) { |
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37 this.writer = writer; |
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38 } |
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39 |
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40 |
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41 /** Add a value to next flush. */ |
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42 public void addNext(String value) { |
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43 buffer.add(value); |
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44 } |
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45 |
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46 |
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47 /** Add many values to next flush. */ |
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48 public void addNexts(String ... values) { |
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49 buffer.addAll(Arrays.asList(values)); |
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50 } |
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51 |
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52 |
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53 /** Write the row with csvwriter. */ |
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54 public void flush() { |
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55 writer.writeNext(buffer.toArray(new String[buffer.size()])); |
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56 buffer.clear(); |
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57 } |
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58 } |
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59 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |