org.deegree.db.legacy.LegacyConnectionProvider.java Source code

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Here is the source code for org.deegree.db.legacy.LegacyConnectionProvider.java

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//$HeadURL$
/*----------------------------------------------------------------------------
 This file is part of deegree, http://deegree.org/
 Copyright (C) 2001-2012 by:
 - Department of Geography, University of Bonn -
 and
 - lat/lon GmbH -
 and
 - Occam Labs UG (haftungsbeschrnkt) -
    
 This library is free software; you can redistribute it and/or modify it under
 the terms of the GNU Lesser General Public License as published by the Free
 Software Foundation; either version 2.1 of the License, or (at your option)
 any later version.
 This library 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 Lesser General Public License for more
 details.
 You should have received a copy of the GNU Lesser General Public License
 along with this library; if not, write to the Free Software Foundation, Inc.,
 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    
 Contact information:
    
 lat/lon GmbH
 Aennchenstr. 19, 53177 Bonn
 Germany
 http://lat-lon.de/
    
 Department of Geography, University of Bonn
 Prof. Dr. Klaus Greve
 Postfach 1147, 53001 Bonn
 Germany
 http://www.geographie.uni-bonn.de/deegree/
    
 Occam Labs UG (haftungsbeschrnkt)
 Godesberger Allee 139, 53175 Bonn
 Germany
    
 e-mail: info@deegree.org
 ----------------------------------------------------------------------------*/
package org.deegree.db.legacy;

import java.sql.Connection;
import java.sql.SQLException;

import org.apache.commons.dbcp.DelegatingConnection;
import org.deegree.commons.jdbc.ConnectionPool;
import org.deegree.db.ConnectionProvider;
import org.deegree.sqldialect.SQLDialect;
import org.deegree.workspace.Resource;
import org.deegree.workspace.ResourceException;
import org.deegree.workspace.ResourceInitException;
import org.deegree.workspace.ResourceMetadata;

/**
 * Implementation that uses the old connection pooling mechanism.
 * 
 * @author <a href="mailto:schmitz@occamlabs.de">Andreas Schmitz</a>
 * @author last edited by: $Author: stranger $
 * 
 * @version $Revision: $, $Date: $
 */
public class LegacyConnectionProvider implements ConnectionProvider {

    private LegacyConnectionProviderMetadata metadata;

    private ConnectionPool pool;

    private SQLDialect dialect;

    public LegacyConnectionProvider(String url, String user, String password, boolean readOnly,
            LegacyConnectionProviderMetadata metadata) {
        this.metadata = metadata;
        // hardcoded as until 3.2
        int poolMinSize = 5;
        int poolMaxSize = 25;

        if (metadata != null) {
            pool = new ConnectionPool(metadata.getIdentifier().getId(), url, user, password, readOnly, poolMinSize,
                    poolMaxSize);
        } else {
            pool = new ConnectionPool("<unspecified>", url, user, password, readOnly, poolMinSize, poolMaxSize);
        }
    }

    public void setDialect(SQLDialect dialect) {
        this.dialect = dialect;
    }

    @Override
    public ResourceMetadata<? extends Resource> getMetadata() {
        return metadata;
    }

    @Override
    public void init() {
        try {
            getConnection().close();
        } catch (SQLException e) {
            throw new ResourceInitException(e.getLocalizedMessage(), e);
        }
    }

    @Override
    public Connection getConnection() {
        try {
            return pool.getConnection();
        } catch (SQLException e) {
            throw new ResourceException(e.getLocalizedMessage(), e);
        }
    }

    @Override
    public void destroy() {
        try {
            pool.destroy();
        } catch (Exception e) {
            throw new ResourceException(e.getLocalizedMessage(), e);
        }
    }

    @Override
    public SQLDialect getDialect() {
        return dialect;
    }

    @Override
    public void invalidate(Connection conn) {
        try {
            pool.invalidate((DelegatingConnection) conn);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

}