Fix various problems with resources potentially not being freed, and other minor fixes suggested by FindBugs

git-svn-id: http://scm.dspace.org/svn/repo/branches/dspace-1_5_x@3036 9c30dcfa-912a-0410-8fc2-9e0234be79fd
This commit is contained in:
Graham Triggs
2008-08-06 15:52:30 +00:00
parent 44cdd859a8
commit 9ae95a94e7
42 changed files with 1972 additions and 1190 deletions

View File

@@ -98,59 +98,62 @@ public class HandleDispatcher implements BitstreamDispatcher
* @throws SQLException
* if database access fails.
*/
private void init()
private synchronized void init()
{
Context context = null;
int dsoType = -1;
int id = -1;
try
if (init == Boolean.FALSE)
{
context = new Context();
DSpaceObject dso = HandleManager.resolveToObject(context, handle);
id = dso.getID();
dsoType = dso.getType();
context.abort();
Context context = null;
int dsoType = -1;
}
catch (SQLException e)
{
LOG.error("init error " + e.getMessage(), e);
throw new RuntimeException("init error" + e.getMessage(), e);
}
finally
{
// Abort the context if it's still valid
if ((context != null) && context.isValid())
int id = -1;
try
{
context = new Context();
DSpaceObject dso = HandleManager.resolveToObject(context, handle);
id = dso.getID();
dsoType = dso.getType();
context.abort();
}
catch (SQLException e)
{
LOG.error("init error " + e.getMessage(), e);
throw new RuntimeException("init error" + e.getMessage(), e);
}
finally
{
// Abort the context if it's still valid
if ((context != null) && context.isValid())
{
context.abort();
}
}
List ids = new ArrayList();
switch (dsoType)
{
case Constants.BITSTREAM:
ids.add(new Integer(id));
break;
case Constants.ITEM:
ids = bitstreamInfoDAO.getItemBitstreams(id);
break;
case Constants.COLLECTION:
ids = bitstreamInfoDAO.getCollectionBitstreams(id);
break;
case Constants.COMMUNITY:
ids = bitstreamInfoDAO.getCommunityBitstreams(id);
break;
}
delegate = new ListDispatcher(ids);
init = Boolean.TRUE;
}
List ids = new ArrayList();
switch (dsoType)
{
case Constants.BITSTREAM:
ids.add(new Integer(id));
break;
case Constants.ITEM:
ids = bitstreamInfoDAO.getItemBitstreams(id);
break;
case Constants.COLLECTION:
ids = bitstreamInfoDAO.getCollectionBitstreams(id);
break;
case Constants.COMMUNITY:
ids = bitstreamInfoDAO.getCommunityBitstreams(id);
break;
}
delegate = new ListDispatcher(ids);
init = Boolean.TRUE;
}
/**
@@ -160,12 +163,9 @@ public class HandleDispatcher implements BitstreamDispatcher
*/
public int next()
{
synchronized (init)
if (init == Boolean.FALSE)
{
if (init == Boolean.FALSE)
{
init();
}
init();
}
return delegate.next();