com.liferay.commerce.discount.internal.upgrade.base.BaseCommerceDiscountUpgradeProcess Maven / Gradle / Ivy

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Liferay Commerce Discount Service
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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * 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.
 */

package com.liferay.commerce.discount.internal.upgrade.base;

import com.liferay.petra.string.StringPool;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.upgrade.UpgradeProcess;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringUtil;

/**
 * @author Alessio Antonio Rendina
 */
public abstract class BaseCommerceDiscountUpgradeProcess
	extends UpgradeProcess {

	protected void addColumn(
			Class entityClass, String tableName, String columnName,
			String columnType)
		throws Exception {

		if (_log.isInfoEnabled()) {
			_log.info(
				String.format(
					"Adding column %s to table %s", columnName, tableName));
		}

		if (!hasColumn(tableName, columnName)) {
			alter(
				entityClass,
				new AlterTableAddColumn(
					columnName + StringPool.SPACE + columnType));
		}
		else {
			if (_log.isInfoEnabled()) {
				_log.info(
					String.format(
						"Column %s already exists on table %s", columnName,
						tableName));
			}
		}
	}

	@Override
	protected abstract void doUpgrade() throws Exception;

	protected void dropColumn(String tableName, String columnName)
		throws Exception {

		if (_log.isInfoEnabled()) {
			_log.info(
				String.format(
					"Dropping column %s from table %s", columnName, tableName));
		}

		if (hasColumn(tableName, columnName)) {
			runSQL(
				StringBundler.concat(
					"alter table ", tableName, " drop column ", columnName));
		}
		else {
			if (_log.isInfoEnabled()) {
				_log.info(
					String.format(
						"Column %s does not exist on table %s", columnName,
						tableName));
			}
		}
	}

	protected void renameColumn(
			Class tableClass, String tableName, String oldColumnName,
			String newColumnName)
		throws Exception {

		if (_log.isInfoEnabled()) {
			_log.info(
				String.format(
					"Renaming column %s to %s for table %s", oldColumnName,
					newColumnName, tableName));
		}

		String newColumnSimpleName = StringUtil.extractFirst(
			newColumnName, StringPool.SPACE);

		if (!hasColumn(tableName, newColumnSimpleName)) {
			alter(
				tableClass, new AlterColumnName(oldColumnName, newColumnName));
		}
		else {
			if (_log.isInfoEnabled()) {
				_log.info(
					String.format(
						"Column %s already exists on table %s", newColumnName,
						tableName));
			}
		}
	}

	private static final Log _log = LogFactoryUtil.getLog(
		BaseCommerceDiscountUpgradeProcess.class);

}