com.financial.tools.recorderserver.tools.util.DataLoader.java Source code

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Here is the source code for com.financial.tools.recorderserver.tools.util.DataLoader.java

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/**
 * Copyright (c) 2005-2012 springside.org.cn
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 */
package com.financial.tools.recorderserver.tools.util;

import java.io.IOException;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.SQLException;

import javax.sql.DataSource;

import org.apache.commons.lang3.StringUtils;
import org.dbunit.DatabaseUnitException;
import org.dbunit.database.DatabaseConnection;
import org.dbunit.database.IDatabaseConnection;
import org.dbunit.dataset.IDataSet;
import org.dbunit.dataset.xml.FlatXmlDataSetBuilder;
import org.dbunit.ext.h2.H2Connection;
import org.dbunit.ext.mysql.MySqlConnection;
import org.dbunit.ext.oracle.OracleConnection;
import org.dbunit.operation.DatabaseOperation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.ResourceLoader;

public class DataLoader {

    private static Logger logger = LoggerFactory.getLogger(DataLoader.class);
    private static ResourceLoader resourceLoader = new DefaultResourceLoader();

    public static void reloadData(DataSource dataSource, String... xmlFilePaths) throws Exception {
        execute(DatabaseOperation.CLEAN_INSERT, dataSource, xmlFilePaths);
    }

    private static void execute(DatabaseOperation operation, DataSource dataSource, String... xmlFilePaths)
            throws DatabaseUnitException, SQLException {
        IDatabaseConnection connection = getConnection(dataSource);
        try {
            for (String xmlPath : xmlFilePaths) {
                try {
                    InputStream input = resourceLoader.getResource(xmlPath).getInputStream();
                    IDataSet dataSet = new FlatXmlDataSetBuilder().setColumnSensing(true).build(input);
                    operation.execute(connection, dataSet);
                } catch (IOException e) {
                    logger.warn(xmlPath + " file not found", e);
                }
            }
        } finally {
            if (connection != null) {
                connection.close();
            }
        }
    }

    protected static IDatabaseConnection getConnection(DataSource dataSource)
            throws DatabaseUnitException, SQLException {
        Connection connection = dataSource.getConnection();
        String url = connection.getMetaData().getURL();
        if (StringUtils.contains(url, ":h2:")) {
            return new H2Connection(connection, null);
        } else if (StringUtils.contains(url, ":mysql:")) {
            return new MySqlConnection(connection, null);
        } else if (StringUtils.contains(url, ":oracle:")) {
            return new OracleConnection(connection, null);
        } else {
            return new DatabaseConnection(connection);
        }
    }
}