Mercurial > dive4elements > river
annotate backend/src/main/java/org/dive4elements/river/importer/ImportEdge.java @ 7772:afa0ffc3a708
Validate waterlevel 'to' value on change.
author | Raimund Renkert <rrenkert@intevation.de> |
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date | Mon, 03 Mar 2014 15:39:35 +0100 |
parents | 4c3ccf2b0304 |
children | 5e38e2924c07 |
rev | line source |
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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.importer; |
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10 |
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11 import org.dive4elements.river.model.Edge; |
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12 |
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13 import org.hibernate.Session; |
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14 import org.hibernate.Query; |
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15 |
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16 import java.util.List; |
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17 |
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18 import java.math.BigDecimal; |
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19 |
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20 public class ImportEdge |
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21 implements Comparable<ImportEdge> |
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22 { |
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23 protected BigDecimal top; |
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24 protected BigDecimal bottom; |
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25 |
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26 protected Edge peer; |
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27 |
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28 public ImportEdge() { |
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29 } |
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30 |
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31 public ImportEdge(BigDecimal top, BigDecimal bottom) { |
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32 this.top = top; |
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33 this.bottom = bottom; |
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34 } |
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35 |
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36 public BigDecimal getTop() { |
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37 return top; |
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38 } |
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39 |
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40 public void setTop(BigDecimal top) { |
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41 this.top = top; |
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42 } |
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43 |
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44 public BigDecimal getBottom() { |
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45 return bottom; |
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46 } |
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47 |
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48 public void setBottom(BigDecimal bottom) { |
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49 this.bottom = bottom; |
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50 } |
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51 |
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52 private static final int compare(BigDecimal a, BigDecimal b) { |
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53 if (a == null && b != null) return -1; |
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54 if (a != null && b == null) return +1; |
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55 if (a == null && b == null) return 0; |
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56 return a.compareTo(b); |
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57 } |
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58 |
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59 public int compareTo(ImportEdge other) { |
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60 int cmp = compare(top, other.top); |
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61 return cmp != 0 ? cmp : compare(bottom, other.bottom); |
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62 } |
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63 |
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64 public Edge getPeer() { |
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65 if (peer == null) { |
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66 Session session = ImporterSession.getInstance().getDatabaseSession(); |
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67 Query query = session.createQuery( |
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68 "from Edge where top=:top and bottom=:bottom"); |
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69 query.setParameter("top", top); |
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70 query.setParameter("bottom", bottom); |
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71 List<Edge> edges = query.list(); |
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72 if (edges.isEmpty()) { |
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73 peer = new Edge(top, bottom); |
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74 session.save(peer); |
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75 } |
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76 else { |
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77 peer = edges.get(0); |
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78 } |
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79 } |
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80 return peer; |
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81 } |
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82 } |
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83 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |