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AbstractConnector.java
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AbstractConnector.java
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/**
* Copyright (C) 2016 Czech Technical University in Prague
*
* 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.
*
* 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.owlapi.connector;
import cz.cvut.kbss.ontodriver.Closeable;
import cz.cvut.kbss.ontodriver.OntologyStorageProperties;
import cz.cvut.kbss.ontodriver.config.Configuration;
import cz.cvut.kbss.ontodriver.exception.OntoDriverException;
import cz.cvut.kbss.ontodriver.owlapi.exception.OwlapiDriverException;
/**
* Common superclass for the storage connectors.
* <p>
* Declares the basic interface and stores storage info.
*
* @author ledvima1
*/
abstract class AbstractConnector implements Closeable, Connector {
protected OntologyStorageProperties storageProperties;
Configuration configuration;
private volatile boolean open;
public AbstractConnector(OntologyStorageProperties storageProperties, Configuration configuration) throws
OwlapiDriverException {
assert storageProperties != null;
assert configuration != null;
this.storageProperties = storageProperties;
this.configuration = configuration;
initializeConnector();
this.open = true;
}
@Override
public boolean isOpen() {
return open;
}
@Override
public void close() throws OntoDriverException {
this.open = false;
}
protected void ensureOpen() {
if (!open) {
throw new IllegalStateException("The connector is closed.");
}
}
/**
* Initializes the connector.
*/
protected abstract void initializeConnector() throws OwlapiDriverException;
}