de.mhus.db.karaf.datasource.DelegateDataSource Maven / Gradle / Ivy
/**
* Copyright 2018 Mike Hummel
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of the License at
*
*
http://www.apache.org/licenses/LICENSE-2.0
*
*
Unless required by applicable law or agreed to in writing, software distributed under the
* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.mhus.db.karaf.datasource;
import java.sql.SQLFeatureNotSupportedException;
import javax.sql.DataSource;
import de.mhus.osgi.api.util.DataSourceUtil;
public class DelegateDataSource extends AbstractDataSource {
private String source;
private DataSource dataSource;
@Override
public DataSource getDataSource() throws SQLFeatureNotSupportedException {
synchronized (this) {
if (dataSource == null) {
dataSource = DataSourceUtil.getDataSource(source);
}
}
return dataSource;
}
@Override
public void doDisconnect() {
dataSource = null;
}
@Override
public boolean isInstanceConnected() {
return dataSource != null;
}
public String getSource() {
return source;
}
public void setSource(String source) {
this.source = source;
instanceName = "delegate:" + source;
}
}