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SesameDriver.java
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SesameDriver.java
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/**
* Copyright (C) 2016 Czech Technical University in Prague
* <p>
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
* <p>
* 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 General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.ontodriver.sesame;
import cz.cvut.kbss.ontodriver.Closeable;
import cz.cvut.kbss.ontodriver.Connection;
import cz.cvut.kbss.ontodriver.OntologyStorageProperties;
import cz.cvut.kbss.ontodriver.config.ConfigParam;
import cz.cvut.kbss.ontodriver.config.Configuration;
import cz.cvut.kbss.ontodriver.config.ConfigurationParameter;
import cz.cvut.kbss.ontodriver.exception.OntoDriverException;
import cz.cvut.kbss.ontodriver.sesame.config.SesameConfigParam;
import cz.cvut.kbss.ontodriver.sesame.connector.ConnectorFactory;
import cz.cvut.kbss.ontodriver.sesame.exceptions.SesameDriverException;
import java.util.*;
class SesameDriver implements Closeable, ConnectionListener {
private final List<ConfigurationParameter> CONFIGS = Arrays
.asList(ConfigParam.AUTO_COMMIT, ConfigParam.ONTOLOGY_LANGUAGE,
SesameConfigParam.USE_INFERENCE, SesameConfigParam.USE_VOLATILE_STORAGE);
private final Configuration configuration;
private boolean open;
private final ConnectorFactory connectorFactory;
private final Set<SesameConnection> openedConnections;
SesameDriver(OntologyStorageProperties storageProperties, Map<String, String> properties) {
assert storageProperties != null;
assert properties != null;
this.configuration = new Configuration(storageProperties);
configuration.addConfiguration(properties, CONFIGS);
this.openedConnections = new HashSet<>();
this.connectorFactory = ConnectorFactory.getInstance();
this.open = true;
}
@Override
public void close() throws OntoDriverException {
if (!open) {
return;
}
try {
for (SesameConnection c : openedConnections) {
c.removeListener(this);
c.close();
}
connectorFactory.close();
} catch (OntoDriverException e) {
throw e;
} catch (Exception e) {
throw new SesameDriverException(e);
} finally {
this.open = false;
}
}
@Override
public boolean isOpen() {
return open;
}
Connection acquireConnection() throws SesameDriverException {
assert open;
final SesameAdapter adapter = new SesameAdapter(connectorFactory.createStorageConnector(configuration),
configuration);
final SesameConnection c = new SesameConnection(adapter);
c.setLists(new SesameLists(adapter, c::ensureOpen, c::commitIfAuto));
c.setTypes(new SesameTypes(adapter, c::ensureOpen, c::commitIfAuto));
c.setProperties(new SesameProperties(adapter, c::ensureOpen, c::commitIfAuto));
openedConnections.add(c);
c.addListener(this);
return c;
}
@Override
public void connectionClosed(Connection connection) {
if (connection == null) {
return;
}
openedConnections.remove(connection);
}
}