DefaultNodeStoreFactoryImpl.java

package org.buddycloud.channelserver.db;

import java.sql.Connection;

import org.apache.log4j.Logger;
import org.buddycloud.channelserver.Configuration;
import org.buddycloud.channelserver.db.exception.NodeStoreException;
import org.buddycloud.channelserver.db.jdbc.JDBCNodeStore;
import org.buddycloud.channelserver.db.jdbc.dialect.Sql92NodeStoreDialect;

public class DefaultNodeStoreFactoryImpl implements NodeStoreFactory {

    private static final String CONFIGURATION_JDBC_DIALECT = "jdbc.dialect";
    private static final Logger LOGGER = Logger.getLogger(DefaultNodeStoreFactoryImpl.class);

    private final Configuration configuration;

    public DefaultNodeStoreFactoryImpl(final Configuration configuration) throws NodeStoreException {
        this.configuration = configuration;

        String dialectClass = configuration.getProperty(CONFIGURATION_JDBC_DIALECT, Sql92NodeStoreDialect.class.getName());

        try {
            Class.forName(dialectClass).newInstance();
        } catch (Exception e) {
            throw new NodeStoreException("Could not instantiate dialect class " + dialectClass, e);
        }
    }

    @Override
    public NodeStore create() {

        Connection connection = null;
        try {
            connection = new JDBCConnectionFactory(configuration).getConnection();
            return new JDBCNodeStore(connection, new Sql92NodeStoreDialect(), configuration);
        } catch (Exception e) {
            LOGGER.error("JDBCNodeStore failed to initialize.", e);
        }
        return null;
    }

}