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 * <a href="mailto:grenard@nuxeo.com">Guillaume</a> 018 */ 019package org.nuxeo.ecm.collections.core.worker; 020 021import java.lang.reflect.Constructor; 022import java.util.List; 023 024import org.nuxeo.ecm.collections.core.listener.CollectionAsynchrnonousQuery; 025import org.nuxeo.ecm.core.api.DocumentModel; 026import org.nuxeo.ecm.core.work.AbstractWork; 027import org.nuxeo.ecm.core.work.api.WorkManager; 028import org.nuxeo.ecm.platform.query.nxql.NXQLQueryBuilder; 029import org.nuxeo.runtime.api.Framework; 030 031/** 032 * @since 5.9.3 033 */ 034public abstract class RemovedAbstractWork extends AbstractWork { 035 036 private static final long serialVersionUID = 5240954386944920642L; 037 038 protected abstract String getQuery(); 039 040 protected long offset = 0; 041 042 public RemovedAbstractWork() { 043 this(0); 044 } 045 046 protected RemovedAbstractWork(final long offset) { 047 super(); 048 this.offset = offset; 049 } 050 051 @Override 052 public String getId() { 053 return repositoryName + ":" + docId + ":" + offset; 054 } 055 056 @Override 057 public boolean isIdempotent() { 058 return false; 059 } 060 061 @Override 062 public void work() { 063 setStatus("Updating"); 064 if (docId != null) { 065 openSystemSession(); 066 final List<DocumentModel> results = getNextResults(); 067 final int nbResult = results.size(); 068 setProgress(new Progress(0, results.size())); 069 for (int i = 0; i < nbResult; i++) { 070 updateDocument(results.get(i)); 071 setProgress(new Progress(0, nbResult)); 072 } 073 074 if (nbResult == CollectionAsynchrnonousQuery.MAX_RESULT) { 075 setStatus("Rescheduling next work"); 076 RemovedAbstractWork nextWork; 077 try { 078 Constructor<? extends RemovedAbstractWork> c = this.getClass().getDeclaredConstructor(long.class); 079 nextWork = c.newInstance(offset + CollectionAsynchrnonousQuery.MAX_RESULT); 080 } catch (ReflectiveOperationException e) { 081 throw new RuntimeException(e); 082 } 083 nextWork.setDocument(repositoryName, docId); 084 WorkManager workManager = Framework.getService(WorkManager.class); 085 workManager.schedule(nextWork, WorkManager.Scheduling.IF_NOT_SCHEDULED, true); 086 setStatus("Rescheduling Done"); 087 } 088 } 089 setStatus("Updating Done"); 090 } 091 092 protected abstract void updateDocument(final DocumentModel d); 093 094 private List<DocumentModel> getNextResults() { 095 List<DocumentModel> results; 096 Object[] parameters = new Object[1]; 097 parameters[0] = docId; 098 099 String query = NXQLQueryBuilder.getQuery(getQuery(), parameters, true, false, null); 100 101 results = session.query(query, null, CollectionAsynchrnonousQuery.MAX_RESULT, 0, 102 CollectionAsynchrnonousQuery.MAX_RESULT); 103 return results; 104 } 105 106}