001/*
002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Antoine Taillefer <ataillefer@nuxeo.com>
018 */
019package org.nuxeo.drive.adapter.impl;
020
021import java.security.Principal;
022import java.util.ArrayList;
023import java.util.Collections;
024import java.util.Iterator;
025import java.util.List;
026import java.util.Map;
027import java.util.Set;
028
029import org.apache.commons.logging.Log;
030import org.apache.commons.logging.LogFactory;
031import org.nuxeo.drive.adapter.FileSystemItem;
032import org.nuxeo.drive.adapter.FolderItem;
033import org.nuxeo.drive.service.NuxeoDriveManager;
034import org.nuxeo.drive.service.SynchronizationRoots;
035import org.nuxeo.ecm.core.api.CoreInstance;
036import org.nuxeo.ecm.core.api.CoreSession;
037import org.nuxeo.ecm.core.api.DocumentModel;
038import org.nuxeo.ecm.core.api.IdRef;
039import org.nuxeo.ecm.core.api.security.SecurityConstants;
040import org.nuxeo.runtime.api.Framework;
041
042/**
043 * Default implementation of the top level {@link FolderItem}.
044 *
045 * @author Antoine Taillefer
046 */
047public class DefaultTopLevelFolderItem extends AbstractVirtualFolderItem {
048
049    private static final long serialVersionUID = 1L;
050
051    private static final Log log = LogFactory.getLog(DefaultTopLevelFolderItem.class);
052
053    public DefaultTopLevelFolderItem(String factoryName, Principal principal, String folderName) {
054        super(factoryName, principal, null, null, folderName);
055    }
056
057    protected DefaultTopLevelFolderItem() {
058        // Needed for JSON deserialization
059    }
060
061    /*--------------------- FolderItem -----------------*/
062    @Override
063    public List<FileSystemItem> getChildren() {
064
065        List<FileSystemItem> children = new ArrayList<FileSystemItem>();
066        Map<String, SynchronizationRoots> syncRootsByRepo = Framework.getService(NuxeoDriveManager.class)
067                                                                     .getSynchronizationRoots(principal);
068        for (String repositoryName : syncRootsByRepo.keySet()) {
069            try (CoreSession session = CoreInstance.openCoreSession(repositoryName, principal)) {
070                Set<IdRef> syncRootRefs = syncRootsByRepo.get(repositoryName).getRefs();
071                Iterator<IdRef> syncRootRefsIt = syncRootRefs.iterator();
072                while (syncRootRefsIt.hasNext()) {
073                    IdRef idRef = syncRootRefsIt.next();
074                    // TODO: ensure sync roots cache is up-to-date if ACL
075                    // change, for now need to check permission
076                    // See https://jira.nuxeo.com/browse/NXP-11146
077                    if (!session.hasPermission(idRef, SecurityConstants.READ)) {
078                        if (log.isDebugEnabled()) {
079                            log.debug(String.format(
080                                    "User %s has no READ access on synchronization root %s, not including it in children.",
081                                    session.getPrincipal().getName(), idRef));
082                        }
083                        continue;
084                    }
085                    DocumentModel doc = session.getDocument(idRef);
086                    // NXP-19442: Avoid useless and costly call to DocumentModel#getLockInfo
087                    FileSystemItem child = getFileSystemItemAdapterService().getFileSystemItem(doc, this, false, false,
088                            false);
089                    if (child == null) {
090                        if (log.isDebugEnabled()) {
091                            log.debug(String.format(
092                                    "Synchronization root %s cannot be adapted as a FileSystemItem, not including it in children.",
093                                    idRef));
094                        }
095                        continue;
096                    }
097                    if (log.isDebugEnabled()) {
098                        log.debug(String.format("Including synchronization root %s in children.", idRef));
099                    }
100                    children.add(child);
101                }
102            }
103        }
104        Collections.sort(children);
105        return children;
106    }
107
108}