org.mycore.access.mcrimpl.MCRRuleStore Maven / Gradle / Ivy
/*
* This file is part of *** M y C o R e ***
* See http://www.mycore.de/ for details.
*
* MyCoRe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MyCoRe 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MyCoRe. If not, see .
*/
package org.mycore.access.mcrimpl;
import java.util.Collection;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.mycore.backend.jpa.access.MCRJPARuleStore;
import org.mycore.common.config.MCRConfiguration2;
/**
* The purpose of this interface is to make the choice of the persistence layer
* configurable. Any concrete database-class which stores MyCoRe Access control
* must implement this interface. Which database actually will be used can then
* be configured by reading the value MCR.Persistence.Rule.Store_Class
* from mycore.properties.access
*
* @author Arne Seifert
*/
public abstract class MCRRuleStore {
private static final Logger LOGGER = LogManager.getLogger(MCRRuleStore.class);
protected static final String SQL_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
protected static final String RULETABLENAME = "MCRACCESSRULE";
private static MCRRuleStore implementation;
public abstract void createRule(MCRAccessRule rule);
public abstract void updateRule(MCRAccessRule rule);
public abstract void deleteRule(String ruleid);
public abstract MCRAccessRule getRule(String ruleid);
public abstract boolean existsRule(String ruleid);
public abstract Collection retrieveAllIDs();
public abstract Collection retrieveRuleIDs(String ruleExpression, String description);
public abstract int getNextFreeRuleID(String prefix);
public static MCRRuleStore getInstance() {
try {
if (implementation == null) {
implementation = MCRConfiguration2
.getSingleInstanceOf("MCR.Persistence.Rule.Store_Class", MCRJPARuleStore.class).get();
}
} catch (Exception e) {
LOGGER.error(e);
}
return implementation;
}
}