001/*
002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     Anahide Tchertchian
016 */
017package org.nuxeo.ecm.directory.multi;
018
019import java.util.ArrayList;
020import java.util.HashMap;
021import java.util.List;
022import java.util.Map;
023
024import org.apache.commons.logging.Log;
025import org.apache.commons.logging.LogFactory;
026import org.nuxeo.ecm.directory.Directory;
027import org.nuxeo.ecm.directory.DirectoryException;
028import org.nuxeo.runtime.model.ContributionFragmentRegistry;
029
030/**
031 * @since 5.6
032 */
033public class MultiDirectoryRegistry extends ContributionFragmentRegistry<MultiDirectoryDescriptor> {
034
035    private static final Log log = LogFactory.getLog(MultiDirectoryRegistry.class);
036
037    protected Map<String, MultiDirectoryDescriptor> descriptors = new HashMap<String, MultiDirectoryDescriptor>();
038
039    // cache of directories
040    protected Map<String, MultiDirectory> directories = new HashMap<String, MultiDirectory>();
041
042    @Override
043    public String getContributionId(MultiDirectoryDescriptor contrib) {
044        return contrib.name;
045    }
046
047    @Override
048    public void contributionUpdated(String id, MultiDirectoryDescriptor descriptor,
049            MultiDirectoryDescriptor newOrigContrib) {
050        String name = descriptor.name;
051        if (descriptor.remove) {
052            contributionRemoved(id, descriptor);
053        } else {
054            if (descriptors.containsKey(name)) {
055                log.info("Directory registration updated: " + name);
056            } else {
057                log.info("Directory registered: " + name);
058            }
059            descriptors.put(id, descriptor);
060            MultiDirectory directory = new MultiDirectory(descriptor);
061            directories.put(name, directory);
062        }
063    }
064
065    @Override
066    public void contributionRemoved(String id, MultiDirectoryDescriptor origContrib) {
067        descriptors.remove(id);
068        Directory dir = directories.remove(id);
069        if (dir != null) {
070            try {
071                dir.shutdown();
072            } catch (DirectoryException e) {
073                log.error(String.format("Error while shutting down directory '%s'", id), e);
074            }
075        }
076        log.info("Directory removed: " + id);
077    }
078
079    @Override
080    public MultiDirectoryDescriptor clone(MultiDirectoryDescriptor orig) {
081        return orig.clone();
082    }
083
084    @Override
085    public void merge(MultiDirectoryDescriptor src, MultiDirectoryDescriptor dst) {
086        boolean remove = src.remove;
087        // keep old remove info: if old contribution was removed, new one
088        // should replace the old one completely
089        boolean wasRemoved = dst.remove;
090        if (remove) {
091            dst.remove = remove;
092            // don't bother merging
093            return;
094        }
095
096        dst.merge(src, wasRemoved);
097    }
098
099    // API
100
101    public MultiDirectory getDirectory(String name) {
102        return directories.get(name);
103    }
104
105    public List<Directory> getDirectories() {
106        List<Directory> res = new ArrayList<Directory>();
107        res.addAll(directories.values());
108        return res;
109    }
110
111}