/**
* Copyright 2010 JBoss Inc
*
* 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.drools.repository.migration;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import org.drools.repository.AssetItem;
import org.drools.repository.PackageItem;
import org.drools.repository.PackageIterator;
import org.drools.repository.RulesRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This is a one time class which will be used to migrate package header info for drools.
* Only needed for drools version 4 repositories.
* @author Michael Neale
*/
public class MigrateDroolsPackage {
private final Logger log = LoggerFactory.getLogger(this.getClass());
public boolean needsMigration(RulesRepository repo) throws RepositoryException {
Node root = repo.getSession().getRootNode().getNode(RulesRepository.RULES_REPOSITORY_NAME);
return !root.hasNode("drools.package.migrated");
}
public void migrate(RulesRepository repo) throws RepositoryException {
log.info("AUTO MIGRATION: Performing drools.package migration...");
PackageIterator pkgs = repo.listPackages();
boolean performed = false;
while(pkgs.hasNext()) {
performed = true;
PackageItem pkg = (PackageItem) pkgs.next();
migratePackage(pkg);
String[] snaps = repo.listPackageSnapshots(pkg.getName());
if (snaps != null) {
for (int i = 0; i < snaps.length; i++) {
PackageItem snap = repo.loadPackageSnapshot(pkg.getName(), snaps[i]);
migratePackage(snap);
}
}
}
if (performed) {
repo.getSession().getRootNode().getNode(RulesRepository.RULES_REPOSITORY_NAME).addNode("drools.package.migrated", "nt:folder");
repo.save();
log.info("AUTO MIGRATION: drools.package migration completed.");
}
}
private void migratePackage(PackageItem pkg) {
if (!pkg.containsAsset("drools")) {
AssetItem asset = pkg.addAsset("drools", "");
asset.updateFormat("package");
asset.updateContent(pkg.getStringProperty(PackageItem.HEADER_PROPERTY_NAME));
asset.checkin("");
}
}
}