org.pentaho.reporting.engine.classic.extensions.datasources.mondrian.DefaultMondrianConnectionProvider.java Source code

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Here is the source code for org.pentaho.reporting.engine.classic.extensions.datasources.mondrian.DefaultMondrianConnectionProvider.java

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/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2002-2017 Hitachi Vantara..  All rights reserved.
*/

package org.pentaho.reporting.engine.classic.extensions.datasources.mondrian;

import mondrian.olap.Connection;
import mondrian.olap.DriverManager;
import mondrian.olap.Util;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.reporting.engine.classic.core.ReportDataFactoryException;

import javax.sql.DataSource;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Properties;

public class DefaultMondrianConnectionProvider implements MondrianConnectionProvider {
    private static final Log logger = LogFactory.getLog(DefaultMondrianConnectionProvider.class);

    public DefaultMondrianConnectionProvider() {
    }

    protected String computeConnectionString(final Properties parameters) {
        final StringBuffer connectionStr = new StringBuffer(100);
        connectionStr.append("provider=mondrian");

        connectionStr.append("; ");
        connectionStr.append("Catalog=");
        connectionStr.append(parameters.getProperty("Catalog"));

        final Enumeration objectEnumeration = parameters.keys();
        while (objectEnumeration.hasMoreElements()) {
            final String key = (String) objectEnumeration.nextElement();
            if ("Catalog".equals(key)) {
                continue;
            }
            final Object value = parameters.getProperty(key);
            if (value != null) {
                connectionStr.append("; ");
                connectionStr.append(key);
                connectionStr.append("=");
                connectionStr.append(value);
            }
        }
        return connectionStr.toString();
    }

    public Connection createConnection(final Properties properties, final DataSource dataSource)
            throws ReportDataFactoryException {
        logger.debug(
                "Creating Mondrian connection: " + Util.parseConnectString(computeConnectionString(properties)));
        return DriverManager.getConnection(Util.parseConnectString(computeConnectionString(properties)), null,
                dataSource);
    }

    public Object getConnectionHash(final Properties properties) throws ReportDataFactoryException {
        final ArrayList<Object> list = new ArrayList<Object>();
        list.add(getClass().getName());
        list.add(properties.clone());
        return list;
    }
}