1 | package org.medias.eccad.persistance.jdbc; |
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2 | |
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3 | import java.sql.Connection; |
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4 | import java.sql.SQLException; |
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5 | |
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6 | import org.medias.eccad.helpers.Donnees; |
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7 | import org.medias.eccad.persistance.dao.GrilleDAO; |
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8 | import org.medias.eccad.persistance.exception.PersistanceException; |
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9 | import org.postgresql.largeobject.LargeObject; |
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10 | import org.postgresql.largeobject.LargeObjectManager; |
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11 | |
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12 | public class GrilleTestjdbc extends GrilleDAOjdbc implements GrilleDAO { |
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13 | private Connection conn; |
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14 | |
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15 | public void connection() throws PersistanceException { |
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16 | conn = getConnection(); |
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17 | } |
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18 | |
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19 | public void disconnect() { |
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20 | closeConnection(); |
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21 | } |
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22 | |
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23 | public float[][] getGrilleValue(int oid) throws PersistanceException { |
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24 | LargeObjectManager lobj = null; |
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25 | LargeObject objet_donnees = null; |
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26 | |
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27 | /** |
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28 | * retour en cas d'erreur |
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29 | */ |
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30 | if (oid == -1) { |
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31 | float[][] tab_vide = new float[Donnees.LIGNE][Donnees.COLONNE]; |
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32 | for (int i=0; i<Donnees.LIGNE; i++) |
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33 | for (int j=0; j<Donnees.COLONNE; j++) |
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34 | tab_vide[i][j] = 0; |
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35 | return tab_vide; |
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36 | } |
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37 | |
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38 | float[][] tab_valeur = new float[Donnees.LIGNE][Donnees.COLONNE]; |
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39 | float valeur = -1; |
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40 | int i=0; |
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41 | |
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42 | try { |
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43 | lobj = ((org.postgresql.PGConnection)conn).getLargeObjectAPI(); |
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44 | } catch (SQLException e) {e.printStackTrace(); return null;} |
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45 | |
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46 | try { |
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47 | objet_donnees = lobj.open(oid); |
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48 | } |
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49 | catch (SQLException e) { |
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50 | closeConnection(); |
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51 | throw new PersistanceException(e, "erreur recuperation large object"); |
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52 | } |
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53 | |
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54 | byte[] b; |
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55 | |
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56 | for (i=0; i<Donnees.LIGNE; i++) { |
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57 | |
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58 | try { |
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59 | |
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60 | b = objet_donnees.read(Donnees.COLONNE*4); |
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61 | |
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62 | for (int j=0; j<Donnees.COLONNE*4; j+=4) { |
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63 | valeur = arr2float(b, j); |
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64 | tab_valeur[i][j/4] = valeur; |
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65 | } |
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66 | } |
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67 | catch (SQLException e) { |
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68 | closeConnection(); |
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69 | throw new PersistanceException(e, "erreur lecture large object"); |
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70 | } |
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71 | } |
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72 | |
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73 | return null; |
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74 | } |
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75 | |
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76 | } |
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