001/* 002 * (C) Copyright 2006-2012 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 * 017 * $Id$ 018 */ 019package org.nuxeo.ecm.platform.scanimporter.listener; 020 021import org.apache.commons.logging.Log; 022import org.apache.commons.logging.LogFactory; 023import org.nuxeo.ecm.core.event.Event; 024import org.nuxeo.ecm.core.event.EventListener; 025import org.nuxeo.ecm.platform.scanimporter.processor.ScannedFileImporter; 026 027/** 028 * Listen to Scheduler events to check if new scanned files are availables Trigger the importer if not already busy. 029 * 030 * @author Thierry Delprat 031 */ 032public class IngestionTrigger implements EventListener { 033 034 private static final Log log = LogFactory.getLog(IngestionTrigger.class); 035 036 private static boolean ingestionInProgress = false; 037 038 public static String START_EVENT = "ScanIngestionStart"; 039 040 // fired via the Scheduler 041 @Override 042 public void handleEvent(Event event) { 043 044 if (!START_EVENT.equals(event.getName())) { 045 return; 046 } 047 048 if (ingestionInProgress) { 049 log.info("Ingestion already in progress, waiting for next wake up"); 050 return; 051 } else { 052 log.info("Start injection process"); 053 } 054 055 ingestionInProgress = true; 056 try { 057 ScannedFileImporter importer = new ScannedFileImporter(); 058 if (event.getContext().getProperty("Testing") != null) { 059 event.getContext().setProperty("Tested", true); 060 } else { 061 importer.doImport(); 062 } 063 } finally { 064 ingestionInProgress = false; 065 } 066 } 067 068}