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add waiting to aquire a lock held by the store 

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@509565 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Davies 2007-02-20 14:01:18 +00:00
parent b9814c408c
commit d0beb32cb8
1 changed files with 14 additions and 1 deletions
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15
activemq-core/src/main/java/org/apache/activemq/store/kahadaptor/KahaPersistenceAdapter.java
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@ -34,6 +34,7 @@ import org.apache.activemq.kaha.MessageIdMarshaller;
import org.apache.activemq.kaha.MessageMarshaller;
import org.apache.activemq.kaha.Store;
import org.apache.activemq.kaha.StoreFactory;
import org.apache.activemq.kaha.impl.StoreLockedExcpetion;
import org.apache.activemq.memory.UsageManager;
import org.apache.activemq.openwire.OpenWireFormat;
import org.apache.activemq.store.MessageStore;
@ -50,7 +51,7 @@ import org.apache.commons.logging.LogFactory;
* @version $Revision: 1.4 $
*/
public class KahaPersistenceAdapter implements PersistenceAdapter{
private static final int STORE_LOCKED_WAIT_DELAY = 10*1000;
private static final Log log=LogFactory.getLog(KahaPersistenceAdapter.class);
static final String PREPARED_TRANSACTIONS_NAME="PreparedTransactions";
KahaTransactionStore transactionStore;
@ -126,13 +127,25 @@ public class KahaPersistenceAdapter implements PersistenceAdapter{
}
public TransactionStore createTransactionStore() throws IOException{
if(transactionStore==null){
while (true) {
try {
Store store=getStore();
MapContainer container=store.getMapContainer(PREPARED_TRANSACTIONS_NAME,"transactions");
container.setKeyMarshaller(new CommandMarshaller(wireFormat));
container.setValueMarshaller(new TransactionMarshaller(wireFormat));
container.load();
transactionStore=new KahaTransactionStore(this,container);
break;
}catch(StoreLockedExcpetion e) {
log.info("Store is locked... waiting "+(STORE_LOCKED_WAIT_DELAY/1000)+" seconds for the Store to be unlocked.");
try{
Thread.sleep(STORE_LOCKED_WAIT_DELAY);
}catch(InterruptedException e1){
}
}
}
}
return transactionStore;
}