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.CloseableCoreSession;
036import org.nuxeo.ecm.core.api.CoreInstance;
037import org.nuxeo.ecm.core.api.CoreSession;
038import org.nuxeo.ecm.core.api.DocumentModel;
039import org.nuxeo.ecm.core.api.IdRef;
040import org.nuxeo.ecm.core.api.security.SecurityConstants;
041import org.nuxeo.runtime.api.Framework;
042
043/**
044 * Default implementation of the top level {@link FolderItem}.
045 *
046 * @author Antoine Taillefer
047 */
048public class DefaultTopLevelFolderItem extends AbstractVirtualFolderItem {
049
050    private static final long serialVersionUID = 1L;
051
052    private static final Log log = LogFactory.getLog(DefaultTopLevelFolderItem.class);
053
054    public DefaultTopLevelFolderItem(String factoryName, Principal principal, String folderName) {
055        super(factoryName, principal, null, null, folderName);
056    }
057
058    protected DefaultTopLevelFolderItem() {
059        // Needed for JSON deserialization
060    }
061
062    /*--------------------- FolderItem -----------------*/
063    @Override
064    public List<FileSystemItem> getChildren() {
065
066        List<FileSystemItem> children = new ArrayList<FileSystemItem>();
067        Map<String, SynchronizationRoots> syncRootsByRepo = Framework.getService(NuxeoDriveManager.class)
068                                                                     .getSynchronizationRoots(principal);
069        for (String repositoryName : syncRootsByRepo.keySet()) {
070            try (CloseableCoreSession session = CoreInstance.openCoreSession(repositoryName, principal)) {
071                Set<IdRef> syncRootRefs = syncRootsByRepo.get(repositoryName).getRefs();
072                Iterator<IdRef> syncRootRefsIt = syncRootRefs.iterator();
073                while (syncRootRefsIt.hasNext()) {
074                    IdRef idRef = syncRootRefsIt.next();
075                    // TODO: ensure sync roots cache is up-to-date if ACL
076                    // change, for now need to check permission
077                    // See https://jira.nuxeo.com/browse/NXP-11146
078                    if (!session.hasPermission(idRef, SecurityConstants.READ)) {
079                        if (log.isDebugEnabled()) {
080                            log.debug(String.format(
081                                    "User %s has no READ access on synchronization root %s, not including it in children.",
082                                    session.getPrincipal().getName(), idRef));
083                        }
084                        continue;
085                    }
086                    DocumentModel doc = session.getDocument(idRef);
087                    // NXP-19442: Avoid useless and costly call to DocumentModel#getLockInfo
088                    FileSystemItem child = getFileSystemItemAdapterService().getFileSystemItem(doc, this, false, false,
089                            false);
090                    if (child == null) {
091                        if (log.isDebugEnabled()) {
092                            log.debug(String.format(
093                                    "Synchronization root %s cannot be adapted as a FileSystemItem, not including it in children.",
094                                    idRef));
095                        }
096                        continue;
097                    }
098                    if (log.isDebugEnabled()) {
099                        log.debug(String.format("Including synchronization root %s in children.", idRef));
100                    }
101                    children.add(child);
102                }
103            }
104        }
105        Collections.sort(children);
106        return children;
107    }
108
109}