de.mhus.db.karaf.datasource.AbstractDataSource Maven / Gradle / Ivy

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abstract db commands
There is a newer version: 7.7.0
/**
 * 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.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.logging.Logger;

import javax.sql.DataSource;

public abstract class AbstractDataSource implements DataSource, DelegatedDataSource {

    protected String instanceName = "";

    public abstract DataSource getDataSource() throws SQLFeatureNotSupportedException;

    @Override
    public PrintWriter getLogWriter() throws SQLException {
        return getDataSource().getLogWriter();
    }

    @Override
    public void setLogWriter(PrintWriter out) throws SQLException {
        getDataSource().setLogWriter(out);
    }

    @Override
    public void setLoginTimeout(int seconds) throws SQLException {
        getDataSource().setLoginTimeout(seconds);
    }

    @Override
    public int getLoginTimeout() throws SQLException {
        return getDataSource().getLoginTimeout();
    }

    @Override
    public Logger getParentLogger() throws SQLFeatureNotSupportedException {
        return getDataSource().getParentLogger();
    }

    @Override
    public  T unwrap(Class iface) throws SQLException {
        return getDataSource().unwrap(iface);
    }

    @Override
    public boolean isWrapperFor(Class iface) throws SQLException {
        return getDataSource().isWrapperFor(iface);
    }

    @Override
    public Connection getConnection() throws SQLException {
        return new DelegateConnection(getDataSource().getConnection(), this);
    }

    @Override
    public Connection getConnection(String username, String password) throws SQLException {
        try {
            return getDataSource().getConnection();
        } catch (SQLException e) {
            doDisconnect();
            throw e;
        }
    }

    public abstract void doDisconnect();

    public String getInstanceName() {
        return instanceName;
    }

    public abstract boolean isInstanceConnected();

    @Override
    public String getDelegateURL() {
        return getInstanceName() + (!isInstanceConnected() ? " (disconnected)" : "");
    }
}