/**
* Copyright (C) 2012 cogroo <cogroo@cogroo.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.cogroo.tools.checker.rules.applier;
import org.apache.log4j.Logger;
import org.cogroo.tools.checker.rules.model.Rules;
/**
* Singleton objetc that provides access to the {@link Rules}
*
* @author Marcelo Suzumura
*/
public class RulesProvider {
private static final Logger LOGGER = Logger.getLogger(RulesProvider.class);
/**
* Instantiates the singleton.
*/
public RulesProvider(RulesAccess rulesAccess, boolean reread) {
this.rulesAccess = rulesAccess;
this.rules = this.getRules();
this.reread = reread;
}
private final RulesAccess rulesAccess;
private Rules rules;
private boolean reread;
// private RulesAccess getRulesAccess() {
// RulesAccess access;
// if ("xml".equals(RulesProperties.DATA_SOURCE)) { // Source = xml.
// LOGGER.info("Rules data source = xml");
// access = RulesXmlAccess.getInstance();
// } else if ("db".equals(RulesProperties.DATA_SOURCE)) { // Source = db = database (not implemented).
// LOGGER.info("Rules data source = db");
// throw new RulesException("Invalid data.source in properties file. db access is not implemented.");
// } else { // Unknown source.
// LOGGER.info("Rules data source = unknown");
// throw new RulesException("Unknown data.source in properties file.");
// }
// return access;
// }
public Rules getRules() {
if (this.rules == null || reread) {
if (LOGGER.isDebugEnabled())
LOGGER.debug("Rules will be reread");
this.rules = this.rulesAccess.getRules();
}
return this.rules;
}
}