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.Calendar;
023import java.util.List;
024
025import org.nuxeo.drive.adapter.FileItem;
026import org.nuxeo.drive.adapter.FileSystemItem;
027import org.nuxeo.drive.adapter.FolderItem;
028import org.nuxeo.drive.service.impl.NuxeoDriveManagerImpl;
029import org.nuxeo.ecm.core.api.Blob;
030
031/**
032 * Base implementation of a virtual {@link FolderItem}.
033 *
034 * @author Antoine Taillefer
035 */
036public abstract class AbstractVirtualFolderItem extends AbstractFileSystemItem implements FolderItem {
037
038    private static final long serialVersionUID = 1L;
039
040    protected boolean canCreateChild;
041
042    public AbstractVirtualFolderItem(String factoryName, Principal principal, String parentId, String parentPath,
043            String folderName) {
044        super(factoryName, principal, false);
045        this.parentId = parentId;
046        name = folderName;
047        folder = true;
048        creator = "system";
049        lastContributor = "system";
050        // The Fixed Origin of (Unix) Time
051        creationDate = Calendar.getInstance(NuxeoDriveManagerImpl.UTC);
052        creationDate.set(1970, 0, 1, 0, 0, 0);
053        lastModificationDate = this.creationDate;
054        canRename = false;
055        canDelete = false;
056        canCreateChild = false;
057        path = "/" + getId();
058        if (parentPath != null) {
059            path = parentPath + path;
060        }
061    }
062
063    protected AbstractVirtualFolderItem() {
064        // Needed for JSON deserialization
065    }
066
067    /*----------------------- FolderItem -----------------------*/
068    @Override
069    public abstract List<FileSystemItem> getChildren();
070
071    /*--------------------- FileSystemItem ---------------------*/
072    @Override
073    public void rename(String name) {
074        throw new UnsupportedOperationException("Cannot rename a virtual folder item.");
075    }
076
077    @Override
078    public void delete() {
079        throw new UnsupportedOperationException("Cannot delete a virtual folder item.");
080    }
081
082    @Override
083    public boolean canMove(FolderItem dest) {
084        return false;
085    }
086
087    @Override
088    public FileSystemItem move(FolderItem dest) {
089        throw new UnsupportedOperationException("Cannot move a virtual folder item.");
090    }
091
092    /*--------------------- FolderItem -----------------*/
093    @Override
094    public boolean getCanCreateChild() {
095        return canCreateChild;
096    }
097
098    @Override
099    public FolderItem createFolder(String name) {
100        throw new UnsupportedOperationException("Cannot create a folder in a virtual folder item.");
101    }
102
103    @Override
104    public FileItem createFile(Blob blob) {
105        throw new UnsupportedOperationException("Cannot create a file in a virtual folder item.");
106    }
107
108    /*---------- Needed for JSON deserialization ----------*/
109    protected void setCanCreateChild(boolean canCreateChild) {
110        this.canCreateChild = canCreateChild;
111    }
112
113}