[507] | 1 | package gov.hhs.fha.nhinc.gateway.aggregator.persistence;
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| 2 |
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| 3 | import gov.hhs.fha.nhinc.gateway.aggregator.dao.AggTransactionDao;
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| 4 | import gov.hhs.fha.nhinc.gateway.aggregator.model.AggTransaction;
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| 5 | import java.util.Date;
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| 6 | import org.apache.commons.logging.Log;
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| 7 | import org.apache.commons.logging.LogFactory;
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| 8 |
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| 9 |
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| 10 | /**
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| 11 | *
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| 12 | * @author westbergl
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| 13 | */
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| 14 | public class GarbageCollectorThread extends Thread
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| 15 | {
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| 16 | private static Log log = LogFactory.getLog(GarbageCollectorThread.class);
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| 17 | private Date pivotDate = null;
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| 18 |
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| 19 | /**
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| 20 | * Construct a garbage collector that will clean anything
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| 21 | * older than the specified date.
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| 22 | */
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| 23 | public GarbageCollectorThread(Date dtPivotDate)
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| 24 | {
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| 25 | pivotDate = dtPivotDate;
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| 26 | }
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| 27 |
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| 28 |
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| 29 | /**
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| 30 | * This runs the GarbageColletor against the aggregator tables. It will
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| 31 | * delete anything that is older than the pivot date.
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| 32 | *
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| 33 | */
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| 34 | @Override
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| 35 | public void run()
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| 36 | {
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| 37 | if (pivotDate != null)
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| 38 | {
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| 39 | AggTransactionDao oAggTransactionDao = new AggTransactionDao();
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| 40 |
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| 41 | try
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| 42 | {
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| 43 | int iNumTrans = 0;
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| 44 | AggTransaction[] oaAggTransaction = oAggTransactionDao.findOlderThan(pivotDate);
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| 45 | if ((oaAggTransaction != null) &&
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| 46 | (oaAggTransaction.length > 0))
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| 47 | {
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| 48 | for (AggTransaction oAggTransaction : oaAggTransaction)
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| 49 | {
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| 50 | oAggTransactionDao.delete(oAggTransaction);
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| 51 | iNumTrans++;
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| 52 | }
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| 53 | }
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| 54 |
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| 55 | log.debug("Aggregator garbage collector cleaned out " + iNumTrans + " stale transactions.");
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| 56 | }
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| 57 | catch (Exception e)
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| 58 | {
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| 59 | String sErrorMessage = "Aggregator garbage collector failed to read entries from the aggregation tables. " +
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| 60 | "Garbage collection is not being done. Error: " + e.getMessage();
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| 61 | log.error(sErrorMessage, e);
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| 62 | return;
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| 63 | }
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| 64 |
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| 65 | }
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| 66 | else
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| 67 | {
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| 68 | String sErrorMessage = "Cannot run Aggregator garbage collection - pivot date was not set.";
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| 69 | log.error(sErrorMessage);
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| 70 | return;
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| 71 | }
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| 72 |
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| 73 | return;
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| 74 | }
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| 75 | }
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