com.fanniemae.ezpie.data.jdbcproviders.JdbcProvider.java Source code

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Here is the source code for com.fanniemae.ezpie.data.jdbcproviders.JdbcProvider.java

Source

/**
 *  
 * Copyright (c) 2017 Fannie Mae, All rights reserved.
 * This program and the accompany materials are made available under
 * the terms of the Fannie Mae Open Source Licensing Project available 
 * at https://github.com/FannieMaeOpenSource/ezPie/wiki/License
 * 
 * ezPIE is a registered trademark of Fannie Mae
 * 
 */

package com.fanniemae.ezpie.data.jdbcproviders;

import java.io.File;
import java.io.FilenameFilter;

import org.apache.commons.io.filefilter.RegexFileFilter;

import com.fanniemae.ezpie.SessionManager;
import com.fanniemae.ezpie.common.PieException;

/**
 * 
 * @author Rick Monson (richard_monson@fanniemae.com, https://www.linkedin.com/in/rick-monson/)
 * @since 2017-09-13
 * 
 */

public abstract class JdbcProvider {

    protected SessionManager _session;

    protected String _urlRegex;
    protected String _className;
    protected int _port;

    public JdbcProvider(SessionManager session) {
        _session = session;
    }

    public String getUrlRegex() {
        return _urlRegex;
    }

    public String getClassName(String className) {
        if ((className != null) && !className.isEmpty()) {
            return className;
        }
        return _className;
    }

    public int getPort(int port) {
        if (port > 0) {
            return port;
        }
        return _port;
    }

    public String getJarFilename(String jdbcJarFilename) {
        if ((jdbcJarFilename != null) && !jdbcJarFilename.isEmpty()) {
            return jdbcJarFilename;
        }

        File dir = new File(_session.getJarPath());
        FilenameFilter filter = new RegexFileFilter(_urlRegex);
        File[] files = dir.listFiles(filter);
        if ((files == null) || (files.length == 0)) {
            throw new PieException(String.format("No matching JDBC driver found in %s.", dir.getAbsolutePath()));
        }

        File latestDriver = files[0];
        for (int i = 0; i < files.length; i++) {
            if (latestDriver.lastModified() < files[i].lastModified()) {
                latestDriver = files[i];
            }
        }

        return latestDriver.getAbsolutePath();
    }

}