001/* 002 * (C) Copyright 2017 Nuxeo (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 * Guillaume Renard <grenard@nuxeo.com> 018 */ 019package org.nuxeo.ecm.automation.core.operations.blob; 020 021import java.util.Collections; 022import java.util.List; 023import java.util.UUID; 024import java.util.stream.Collectors; 025 026import org.nuxeo.ecm.automation.core.Constants; 027import org.nuxeo.ecm.automation.core.annotations.Context; 028import org.nuxeo.ecm.automation.core.annotations.Operation; 029import org.nuxeo.ecm.automation.core.annotations.OperationMethod; 030import org.nuxeo.ecm.automation.core.annotations.Param; 031import org.nuxeo.ecm.automation.core.work.BlobListZipWork; 032import org.nuxeo.ecm.core.api.Blob; 033import org.nuxeo.ecm.core.api.CoreSession; 034import org.nuxeo.ecm.core.api.DocumentModel; 035import org.nuxeo.ecm.core.api.DocumentModelList; 036import org.nuxeo.ecm.core.api.NuxeoException; 037import org.nuxeo.ecm.core.api.impl.blob.AsyncBlob; 038import org.nuxeo.ecm.core.io.download.DownloadService; 039import org.nuxeo.ecm.core.transientstore.api.TransientStore; 040import org.nuxeo.ecm.core.transientstore.api.TransientStoreService; 041import org.nuxeo.ecm.core.work.api.Work; 042import org.nuxeo.ecm.core.work.api.WorkManager; 043import org.nuxeo.ecm.core.work.api.WorkManager.Scheduling; 044import org.nuxeo.runtime.api.Framework; 045 046/** 047 * Asynchronous Bulk Download Operation. 048 * 049 * @since 9.3 050 */ 051@Operation(id = BulkDownload.ID, category = Constants.CAT_BLOB, label = "Bulk Download", description = "Prepare a Zip of a list of documents which is build asynchrously. Produced Zip will be available in the TransientStore with the key returned by the JSON.") 052public class BulkDownload { 053 054 public static final String ID = "Blob.BulkDownload"; 055 056 @Context 057 protected CoreSession session; 058 059 @Param(name = "filename", required = false) 060 protected String fileName; 061 062 @OperationMethod 063 public Blob run(DocumentModelList docs) { 064 TransientStoreService tss = Framework.getService(TransientStoreService.class); 065 TransientStore ts = tss.getStore(DownloadService.TRANSIENT_STORE_STORE_NAME); 066 if (ts == null) { 067 throw new NuxeoException("Unable to find download Transient Store"); 068 } 069 String key = UUID.randomUUID().toString(); 070 List<String> docIds = docs.stream().map(DocumentModel::getId).collect(Collectors.toList()); 071 Work work = new BlobListZipWork(key, session.getPrincipal().getName(), fileName, docIds, 072 DownloadService.TRANSIENT_STORE_STORE_NAME); 073 ts.setCompleted(key, false); 074 Blob blob = new AsyncBlob(key); 075 ts.putBlobs(key, Collections.singletonList(blob)); 076 Framework.getService(WorkManager.class).schedule(work, Scheduling.IF_NOT_SCHEDULED); 077 return blob; 078 } 079 080}