Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/DistanceInfoService.java @ 314:aeeb9054b7cf
Acquire/release sessions in services to avoid db connection leaks.
flys-artifacts/trunk@1699 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Thu, 14 Apr 2011 13:45:50 +0000 |
| parents | 1a00cb4998a8 |
| children | 4aa078e28cfd |
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| 313:89bd0417418f | 314:aeeb9054b7cf |
|---|---|
| 20 import de.intevation.flys.model.Attribute; | 20 import de.intevation.flys.model.Attribute; |
| 21 import de.intevation.flys.model.Position; | 21 import de.intevation.flys.model.Position; |
| 22 import de.intevation.flys.model.Range; | 22 import de.intevation.flys.model.Range; |
| 23 | 23 |
| 24 import de.intevation.flys.artifacts.model.AnnotationsFactory; | 24 import de.intevation.flys.artifacts.model.AnnotationsFactory; |
| 25 import de.intevation.flys.artifacts.model.SessionHolder; | |
| 25 | 26 |
| 27 import org.hibernate.Session; | |
| 26 | 28 |
| 27 /** | 29 /** |
| 28 * This service provides information about distances of a specified river. | 30 * This service provides information about distances of a specified river. |
| 29 * | 31 * |
| 30 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | 32 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
| 64 ElementCreator ec = new ElementCreator( | 66 ElementCreator ec = new ElementCreator( |
| 65 result, | 67 result, |
| 66 ArtifactNamespaceContext.NAMESPACE_URI, | 68 ArtifactNamespaceContext.NAMESPACE_URI, |
| 67 ArtifactNamespaceContext.NAMESPACE_PREFIX); | 69 ArtifactNamespaceContext.NAMESPACE_PREFIX); |
| 68 | 70 |
| 69 List<Annotation> annotations = AnnotationsFactory.getAnnotations(river); | 71 Session session = SessionHolder.acquire(); |
| 72 try { | |
| 73 List<Annotation> annotations = AnnotationsFactory.getAnnotations(river); | |
| 70 | 74 |
| 71 if (annotations == null || annotations.size() == 0) { | 75 if (annotations == null || annotations.size() == 0) { |
| 72 logger.warn("No information found for the specified river!"); | 76 logger.warn("No information found for the specified river!"); |
| 73 return result; | 77 return result; |
| 78 } | |
| 79 | |
| 80 Element all = ec.create("distances"); | |
| 81 | |
| 82 for (Annotation a: annotations) { | |
| 83 Element distance = buildDistanceNode(ec, a); | |
| 84 | |
| 85 if (distance != null) { | |
| 86 all.appendChild(distance); | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 result.appendChild(all); | |
| 74 } | 91 } |
| 75 | 92 finally { |
| 76 Element all = ec.create("distances"); | 93 session.close(); |
| 77 | 94 SessionHolder.release(); |
| 78 for (Annotation a: annotations) { | |
| 79 Element distance = buildDistanceNode(ec, a); | |
| 80 | |
| 81 if (distance != null) { | |
| 82 all.appendChild(distance); | |
| 83 } | |
| 84 } | 95 } |
| 85 | |
| 86 result.appendChild(all); | |
| 87 | 96 |
| 88 return result; | 97 return result; |
| 89 } | 98 } |
| 90 | 99 |
| 91 | 100 |