001/* 002 * (C) Copyright 2014 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 static org.nuxeo.ecm.platform.query.nxql.CoreQueryDocumentPageProvider.CORE_SESSION_PROPERTY; 022 023import java.io.Serializable; 024import java.util.ArrayList; 025import java.util.HashMap; 026import java.util.List; 027import java.util.Map; 028 029import org.nuxeo.drive.adapter.FileItem; 030import org.nuxeo.drive.adapter.FileSystemItem; 031import org.nuxeo.drive.adapter.FolderItem; 032import org.nuxeo.drive.adapter.ScrollFileSystemItemList; 033import org.nuxeo.ecm.collections.api.CollectionConstants; 034import org.nuxeo.ecm.core.api.Blob; 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.platform.query.api.PageProvider; 039import org.nuxeo.ecm.platform.query.api.PageProviderService; 040import org.nuxeo.runtime.api.Framework; 041 042/** 043 * Default implementation of a collection synchronization root {@link FolderItem}. 044 * 045 * @author Antoine Taillefer 046 * @since 6.0 047 */ 048public class CollectionSyncRootFolderItem extends DefaultSyncRootFolderItem { 049 050 private static final long serialVersionUID = 1L; 051 052 public CollectionSyncRootFolderItem(String factoryName, FolderItem parentItem, DocumentModel doc) { 053 this(factoryName, parentItem, doc, false); 054 } 055 056 public CollectionSyncRootFolderItem(String factoryName, FolderItem parentItem, DocumentModel doc, 057 boolean relaxSyncRootConstraint) { 058 this(factoryName, parentItem, doc, relaxSyncRootConstraint, true); 059 } 060 061 public CollectionSyncRootFolderItem(String factoryName, FolderItem parentItem, DocumentModel doc, 062 boolean relaxSyncRootConstraint, boolean getLockInfo) { 063 super(factoryName, parentItem, doc, relaxSyncRootConstraint, getLockInfo); 064 canScrollDescendants = false; 065 } 066 067 protected CollectionSyncRootFolderItem() { 068 // Needed for JSON deserialization 069 } 070 071 @Override 072 @SuppressWarnings("unchecked") 073 public List<FileSystemItem> getChildren() { 074 try (CoreSession session = CoreInstance.openCoreSession(repositoryName, principal)) { 075 PageProviderService pageProviderService = Framework.getLocalService(PageProviderService.class); 076 Map<String, Serializable> props = new HashMap<String, Serializable>(); 077 props.put(CORE_SESSION_PROPERTY, (Serializable) session); 078 PageProvider<DocumentModel> childrenPageProvider = (PageProvider<DocumentModel>) pageProviderService.getPageProvider( 079 CollectionConstants.COLLECTION_CONTENT_PAGE_PROVIDER, null, null, 0L, props, docId); 080 List<DocumentModel> dmChildren = childrenPageProvider.getCurrentPage(); 081 082 List<FileSystemItem> children = new ArrayList<FileSystemItem>(dmChildren.size()); 083 for (DocumentModel dmChild : dmChildren) { 084 // NXP-19442: Avoid useless and costly call to DocumentModel#getLockInfo 085 FileSystemItem child = getFileSystemItemAdapterService().getFileSystemItem(dmChild, this, false, false, 086 false); 087 if (child != null) { 088 children.add(child); 089 } 090 } 091 return children; 092 } 093 } 094 095 @Override 096 public ScrollFileSystemItemList scrollDescendants(String scrollId, int batchSize, long keepAlive) { 097 throw new UnsupportedOperationException( 098 "Cannot scroll through the descendants of a collection sync root folder item, please call getChildren() instead."); 099 } 100 101 @Override 102 public FolderItem createFolder(String name) { 103 throw new UnsupportedOperationException("Cannot create a folder in a collection synchronization root."); 104 } 105 106 @Override 107 public FileItem createFile(Blob blob) { 108 throw new UnsupportedOperationException("Cannot create a file in a collection synchronization root."); 109 } 110 111 @Override 112 protected final void initialize(DocumentModel doc) { 113 super.initialize(doc); 114 // Cannot create a document in a collection sync root (could be 115 // implemented as adding it to the collection if only we new the doc 116 // path). 117 this.canCreateChild = false; 118 } 119 120}