/**
* AnalyzerBeans
* Copyright (C) 2014 Neopost - Customer Information Management
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.eobjects.analyzer.connection;
import org.eobjects.analyzer.util.UsageAwareCloseable;
import org.apache.metamodel.DataContext;
/**
* An abstract pooled {@link DatastoreConnection} that is aware of the amount of
* times it has been acquired and closed. It encapsulates the closing logic,
* making sure that it will only close if all usages of the datastore are
* closed.
*/
public abstract class UsageAwareDatastoreConnection<E extends DataContext> extends UsageAwareCloseable implements DatastoreConnection {
private final Datastore _datastore;
public UsageAwareDatastoreConnection(Datastore datastore) {
_datastore = datastore;
}
@Override
public abstract E getDataContext();
@Override
public String toString() {
return "UsageAwareDatastoreConnection[datastore=" + getDatastoreName() + ",usage=" + getUsageCount() + "]";
}
@Override
public final Datastore getDatastore() {
return _datastore;
}
private String getDatastoreName() {
if (_datastore != null) {
return _datastore.getName();
}
return "<null>";
}
@Override
public int getUsageCount() {
return super.getUsageCount();
}
}