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
History | View | Annotate | Download (2.96 KB)
1 |
package org.gvsig.fmap.dal.store.jdbc2.spi.operations; |
---|---|
2 |
|
3 |
import java.sql.Connection; |
4 |
import java.sql.SQLException; |
5 |
import java.util.logging.Level; |
6 |
import org.gvsig.fmap.dal.exception.DataException; |
7 |
import org.gvsig.fmap.dal.resource.ResourceAction; |
8 |
import org.gvsig.fmap.dal.resource.spi.ResourceProvider; |
9 |
import org.gvsig.fmap.dal.store.jdbc.exception.JDBCTransactionRollbackException; |
10 |
import org.gvsig.fmap.dal.store.jdbc2.JDBCHelper; |
11 |
import org.gvsig.fmap.dal.store.jdbc2.spi.JDBCSQLBuilderBase; |
12 |
import org.slf4j.Logger; |
13 |
import org.slf4j.LoggerFactory; |
14 |
|
15 |
public abstract class AbstractConnectionOperation implements ConnectionOperation { |
16 |
|
17 |
final static protected Logger logger = LoggerFactory.getLogger(AbstractConnectionOperation.class); |
18 |
|
19 |
final protected JDBCHelper helper; |
20 |
|
21 |
public AbstractConnectionOperation(JDBCHelper helper) {
|
22 |
this.helper = helper;
|
23 |
} |
24 |
|
25 |
@Override
|
26 |
public boolean continueTransactionAllowed() { |
27 |
return false; |
28 |
} |
29 |
|
30 |
@Override
|
31 |
public boolean needTransaction() { |
32 |
return true; |
33 |
} |
34 |
|
35 |
protected JDBCSQLBuilderBase createSQLBuilder() {
|
36 |
return this.helper.createSQLBuilder(); |
37 |
} |
38 |
|
39 |
@Override
|
40 |
public Object perform() { |
41 |
try {
|
42 |
return this.perform_operation(); |
43 |
} catch (RuntimeException ex) { |
44 |
throw ex;
|
45 |
} catch (Exception ex) { |
46 |
throw new RuntimeException("Can't perform operation '"+this.getClass().getSimpleName()+"'.",ex); |
47 |
} |
48 |
} |
49 |
|
50 |
public Object perform_operation() throws Exception { |
51 |
Object result = null; |
52 |
Connection conn = null; |
53 |
try {
|
54 |
logger.debug("preparing execution of "+this.getClass().getSimpleName()+"."); |
55 |
conn = helper.getConnection(); |
56 |
|
57 |
// XXX OJO esta condicion NO ES FIABLE
|
58 |
if (!conn.getAutoCommit()) {
|
59 |
if (!continueTransactionAllowed()) {
|
60 |
throw new SQLException("nested operations not allowed."); |
61 |
} |
62 |
} |
63 |
conn.setAutoCommit(false);
|
64 |
try {
|
65 |
logger.debug("Excuting operation {}.", this.getClass().getSimpleName()); |
66 |
result = perform(conn); |
67 |
} catch (Exception ex) { |
68 |
try {
|
69 |
conn.rollback(); |
70 |
} catch (Exception e1) { |
71 |
throw new JDBCTransactionRollbackException(e1, ex); |
72 |
} |
73 |
throw new RuntimeException("Can't perform operation '"+this.getClass().getSimpleName()+"'.",ex); |
74 |
} |
75 |
conn.commit(); |
76 |
return result;
|
77 |
} finally {
|
78 |
helper.closeConnection(conn); |
79 |
} |
80 |
} |
81 |
//
|
82 |
// public Object perform2() {
|
83 |
// ResourceProvider resource = this.helper.getResource();
|
84 |
// Object r = resource.execute(new ResourceAction() {
|
85 |
//
|
86 |
// @Override
|
87 |
// public Object run() throws Exception {
|
88 |
// return perform_operation();
|
89 |
// }
|
90 |
// });
|
91 |
// return r;
|
92 |
// }
|
93 |
|
94 |
} |