org.mycore.datamodel.metadata.MCRDerivateDefaultClassEventHandler 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.datamodel.metadata;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.mycore.common.config.MCRConfiguration2;
import org.mycore.common.events.MCREvent;
import org.mycore.common.events.MCREventHandlerBase;
import org.mycore.datamodel.classifications2.MCRCategoryDAO;
import org.mycore.datamodel.classifications2.MCRCategoryDAOFactory;
import org.mycore.datamodel.classifications2.MCRCategoryID;
public class MCRDerivateDefaultClassEventHandler extends MCREventHandlerBase {
private static final List DEFAULT_CATEGORIES = MCRConfiguration2
.getString("MCR." + MCRDerivateDefaultClassEventHandler.class.getSimpleName() + ".DefaultCategories")
.map(MCRConfiguration2::splitValue)
.orElseGet(() -> Stream.of("derivate_types:content"))
.collect(Collectors.toUnmodifiableList());
private static final Logger LOGGER = LogManager.getLogger();
private static MCRMetaClassification asMetaClassification(MCRCategoryID categoryId) {
return new MCRMetaClassification("classification", 0, null,
categoryId.getRootID(), categoryId.getID());
}
@Override
protected void handleDerivateCreated(MCREvent evt, MCRDerivate der) {
final ArrayList classifications = der.getDerivate().getClassifications();
if (!classifications.isEmpty()) {
//already defined at creation
return;
}
final List categories = DEFAULT_CATEGORIES.stream()
.map(MCRCategoryID::fromString) //checks syntax
.collect(Collectors.toList());
final MCRCategoryDAO categoryDAO = MCRCategoryDAOFactory.getInstance();
final List missingCategories = categories.stream()
.filter(Predicate.not(categoryDAO::exist))
.collect(Collectors.toList());
if (!missingCategories.isEmpty()) {
LOGGER.error(() -> "Categories do not exist: " + missingCategories.stream()
.map(MCRCategoryID::toString)
.collect(Collectors.joining(", ")));
return;
}
LOGGER.warn(() -> der.getId() + " has no classification, using "
+ DEFAULT_CATEGORIES.stream().collect(Collectors.joining(", ")) + " by default.");
classifications.addAll(categories.stream()
.map(MCRDerivateDefaultClassEventHandler::asMetaClassification)
.collect(Collectors.toList()));
}
}