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Collection of methods to fetch spatial metadata in SFS database like PostGIS or H2Spatial. Theses functions can be commonly used either in PostGIS or in H2. Spatial utilities publish also a DataSourceFactory wrapper that provide JDBC Wrapper for spatial functionality.

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package org.h2gis.utilities.wrapper;

import javax.sql.DataSource;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.logging.Logger;

/**
 * Entry point for spatial wrapper of SQL Interfaces.
 * @author Nicolas Fortin
 */
public class DataSourceWrapper implements DataSource {
    private DataSource dataSource;

    public DataSourceWrapper(DataSource dataSource) {
        this.dataSource = dataSource;
    }

    @Override
    public Connection getConnection() throws SQLException {
        return new ConnectionWrapper(dataSource.getConnection());
    }

    @Override
    public Connection getConnection(String username, String password) throws SQLException {
        return new ConnectionWrapper(dataSource.getConnection(username, password));
    }

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

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

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

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

    // @Override -- Commented out for Java 6 compatibility.
    public Logger getParentLogger() throws SQLFeatureNotSupportedException {
        throw new UnsupportedOperationException("This Java 7 method is not yet supported.");
    }

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

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