001/* 002 * (C) Copyright 2011 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 * rlegall 018 */ 019package org.nuxeo.ecm.user.center.profile.listeners; 020 021import static org.apache.commons.logging.LogFactory.getLog; 022import static org.nuxeo.ecm.core.api.event.DocumentEventTypes.BEFORE_DOC_UPDATE; 023import static org.nuxeo.ecm.user.center.profile.UserProfileConstants.USER_PROFILE_AVATAR_FIELD; 024import static org.nuxeo.ecm.user.center.profile.UserProfileConstants.USER_PROFILE_FACET; 025 026import java.io.Serializable; 027import java.util.HashMap; 028import java.util.Map; 029 030import org.apache.commons.logging.Log; 031import org.nuxeo.ecm.core.api.Blob; 032import org.nuxeo.ecm.core.api.DocumentModel; 033import org.nuxeo.ecm.core.api.NuxeoException; 034import org.nuxeo.ecm.core.api.PropertyException; 035import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 036import org.nuxeo.ecm.core.api.blobholder.SimpleBlobHolder; 037import org.nuxeo.ecm.core.convert.api.ConversionService; 038import org.nuxeo.ecm.core.event.Event; 039import org.nuxeo.ecm.core.event.EventListener; 040import org.nuxeo.ecm.core.event.impl.DocumentEventContext; 041import org.nuxeo.runtime.api.Framework; 042 043/** 044 * @author rlegall Listener to handle the maximum dimensions of the avatar picture. This listener is triggered on 045 * DocumentEventTypes.BEFORE_DOC_UPDATE events. It verifies if the picture width is above 300 pixels and its 046 * height above 200. In that case, the picture saved in the rich profile is a resized version of it which fits 047 * those constrains. 048 */ 049public class ResizeAvatarPictureListener implements EventListener { 050 051 protected static final int RESIZED_IMAGE_WIDTH = 300; 052 053 protected static final int RESIZED_IMAGE_HEIGHT = 200; 054 055 private static final Log log = getLog(ResizeAvatarPictureListener.class); 056 057 @Override 058 public void handleEvent(Event event) { 059 060 if (isBeforeUpdate(event)) { 061 062 DocumentEventContext ctx = (DocumentEventContext) event.getContext(); 063 DocumentModel doc = ctx.getSourceDocument(); 064 065 if (doc.hasFacet(USER_PROFILE_FACET)) { 066 Blob image = (Blob) doc.getPropertyValue(USER_PROFILE_AVATAR_FIELD); 067 if (image != null) { 068 resizeAvatar(doc, image); 069 } 070 } 071 } 072 } 073 074 protected boolean isBeforeUpdate(Event event) { 075 return BEFORE_DOC_UPDATE.equals(event.getName()) && (event.getContext() instanceof DocumentEventContext); 076 } 077 078 protected void resizeAvatar(DocumentModel doc, Blob avatarImage) throws PropertyException { 079 ConversionService conversionService = Framework.getService(ConversionService.class); 080 BlobHolder bh = new SimpleBlobHolder(avatarImage); 081 Map<String, Serializable> parameters = new HashMap<>(); 082 parameters.put("targetWidth", String.valueOf(RESIZED_IMAGE_WIDTH)); 083 parameters.put("targetHeight", String.valueOf(RESIZED_IMAGE_HEIGHT)); 084 085 try { 086 BlobHolder result = conversionService.convert("resizeAvatar", bh, parameters); 087 if (result != null) { 088 doc.setPropertyValue(USER_PROFILE_AVATAR_FIELD, (Serializable) result.getBlob()); 089 } 090 } catch (NuxeoException e) { 091 log.warn("Unable to resize avatar image"); 092 log.debug(e, e); 093 } 094 095 } 096 097}