svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.jdbc / src / main / java / org / gvsig / fmap / dal / store / jdbc2 / spi / operations / AbstractConnectionOperation.java @ 43020
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1 | 43020 | jjdelcerro | package org.gvsig.fmap.dal.store.jdbc2.spi.operations; |
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2 | |||
3 | import java.sql.Connection; |
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4 | import java.sql.SQLException; |
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5 | import java.util.logging.Level; |
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6 | import org.gvsig.fmap.dal.exception.DataException; |
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7 | import org.gvsig.fmap.dal.resource.ResourceAction; |
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8 | import org.gvsig.fmap.dal.resource.spi.ResourceProvider; |
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9 | import org.gvsig.fmap.dal.store.jdbc.exception.JDBCTransactionRollbackException; |
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10 | import org.gvsig.fmap.dal.store.jdbc2.JDBCHelper; |
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11 | import org.gvsig.fmap.dal.store.jdbc2.spi.JDBCSQLBuilderBase; |
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12 | import org.slf4j.Logger; |
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13 | import org.slf4j.LoggerFactory; |
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14 | |||
15 | public abstract class AbstractConnectionOperation implements ConnectionOperation { |
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16 | |||
17 | final static protected Logger logger = LoggerFactory.getLogger(AbstractConnectionOperation.class); |
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18 | |||
19 | final protected JDBCHelper helper; |
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20 | |||
21 | public AbstractConnectionOperation(JDBCHelper helper) {
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22 | this.helper = helper;
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23 | } |
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24 | |||
25 | @Override
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26 | public boolean continueTransactionAllowed() { |
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27 | return false; |
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28 | } |
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29 | |||
30 | @Override
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31 | public boolean needTransaction() { |
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32 | return true; |
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33 | } |
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34 | |||
35 | protected JDBCSQLBuilderBase createSQLBuilder() {
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36 | return this.helper.createSQLBuilder(); |
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37 | } |
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38 | |||
39 | @Override
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40 | public Object perform() { |
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41 | try {
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42 | return this.perform_operation(); |
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43 | } catch (RuntimeException ex) { |
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44 | throw ex;
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45 | } catch (Exception ex) { |
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46 | throw new RuntimeException("Can't perform operation '"+this.getClass().getSimpleName()+"'.",ex); |
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47 | } |
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48 | } |
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49 | |||
50 | public Object perform_operation() throws Exception { |
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51 | Object result = null; |
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52 | Connection conn = null; |
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53 | try {
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54 | logger.debug("preparing execution of "+this.getClass().getSimpleName()+"."); |
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55 | conn = helper.getConnection(); |
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56 | |||
57 | // XXX OJO esta condicion NO ES FIABLE
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58 | if (!conn.getAutoCommit()) {
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59 | if (!continueTransactionAllowed()) {
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60 | throw new SQLException("nested operations not allowed."); |
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61 | } |
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62 | } |
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63 | conn.setAutoCommit(false);
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64 | try {
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65 | logger.debug("Excuting operation {}.", this.getClass().getSimpleName()); |
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66 | result = perform(conn); |
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67 | } catch (Exception ex) { |
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68 | try {
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69 | conn.rollback(); |
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70 | } catch (Exception e1) { |
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71 | throw new JDBCTransactionRollbackException(e1, ex); |
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72 | } |
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73 | throw new RuntimeException("Can't perform operation '"+this.getClass().getSimpleName()+"'.",ex); |
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74 | } |
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75 | conn.commit(); |
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76 | return result;
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77 | } finally {
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78 | helper.closeConnection(conn); |
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79 | } |
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80 | } |
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81 | //
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82 | // public Object perform2() {
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83 | // ResourceProvider resource = this.helper.getResource();
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84 | // Object r = resource.execute(new ResourceAction() {
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85 | //
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86 | // @Override
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87 | // public Object run() throws Exception {
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88 | // return perform_operation();
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89 | // }
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90 | // });
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91 | // return r;
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92 | // }
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93 | |||
94 | } |