Mercurial > lada > lada-server

annotate src/main/java/de/intevation/lada/data/importer/LAFFormat.java @ 366:567ce7697fc7 0.5

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Code documentation.
author Raimund Renkert <rrenkert@intevation.de>
date Tue, 10 Sep 2013 15:55:54 +0200
parents 5844d7457dde
children 183f8116d9a6
rev   line source
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1 package de.intevation.lada.data.importer;
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2
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3 import java.io.IOException;
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4 import java.nio.ByteBuffer;
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5 import java.nio.charset.Charset;
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6 import java.nio.file.Files;
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7 import java.nio.file.Paths;
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8 import java.util.LinkedList;
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9 import java.util.List;
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10 import java.util.regex.Pattern;
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11
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12 import org.json.JSONArray;
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13 import org.json.JSONException;
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14 import org.json.JSONObject;
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15
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16 /**
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17 * The LAFFormat reads the config file
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18 * (https://bfs-intern.intevation.de/Server/Importer) and creates format
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19 * objects for each entry.
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20 *
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21 * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a>
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22 */
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23 public class LAFFormat
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24 {
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25 private JSONObject fileContent;
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26
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27 /**
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28 * Reads the config file.
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29 *
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30 * @param fileName Path to the config file.
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31 * @return success
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32 */
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33 public boolean readConfigFile(String fileName) {
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34 try {
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35 byte[] encoded = Files.readAllBytes(Paths.get(fileName));
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36 Charset encoding = Charset.defaultCharset();
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37 String content =
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38 encoding.decode(ByteBuffer.wrap(encoded)).toString();
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39 fileContent = new JSONObject(content);
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40 return true;
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41 }
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42 catch (IOException ioe) {
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43 return false;
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44 }
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45 catch (JSONException je) {
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46 return false;
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47 }
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48 }
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49
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50 /**
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51 * Returns a List of EntryFormat for the requested entity type.
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52 * The Entity type can be one of:
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53 * * "probe"
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54 * * "messung"
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55 * * "ort"
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56 *
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57 * @param dataType The entity type
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58 * @return List of entry formats defined for the requested type.
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59 */
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60 public List<EntryFormat> getFormat(String dataType) {
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61 List<EntryFormat> formats = new LinkedList<EntryFormat>();
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62 try {
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63 JSONArray block = fileContent.getJSONArray(dataType);
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64 for (int i = 0; i < block.length(); i++) {
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65 JSONObject jEntry = block.getJSONObject(i);
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66 EntryFormat entry = new EntryFormat();
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67 entry.setKey(jEntry.getString("key"));
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68 Pattern pattern =
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69 Pattern.compile(
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70 jEntry.getString("regex"),
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71 Pattern.MULTILINE);
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72 entry.setPattern(pattern);
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73 entry.setDefaultValue(jEntry.get("default"));
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74 formats.add(entry);
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75 }
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76 return formats;
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77 }
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78 catch (JSONException e) {
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79 return null;
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80 }
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81 }
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82 }
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