001/*
002 * (C) Copyright 2016 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 *     Miguel Nixo
018 */
019package org.nuxeo.ecm.platform.ec.notification.io;
020
021import org.codehaus.jackson.JsonGenerator;
022import org.nuxeo.ecm.core.api.DocumentModel;
023import org.nuxeo.ecm.core.io.marshallers.json.enrichers.AbstractJsonEnricher;
024import org.nuxeo.ecm.core.io.registry.context.RenderingContext;
025import org.nuxeo.ecm.core.io.registry.reflect.Setup;
026import org.nuxeo.ecm.platform.ec.notification.NotificationConstants;
027import org.nuxeo.ecm.platform.ec.notification.SubscriptionAdapter;
028
029import java.io.IOException;
030import java.util.List;
031
032import static org.nuxeo.ecm.core.io.registry.reflect.Instantiations.SINGLETON;
033import static org.nuxeo.ecm.core.io.registry.reflect.Priorities.REFERENCE;
034
035/**
036 * Enricher that lists the current user's subscribed notifications for a particular document.
037 *
038 * @since 8.10
039 */
040@Setup(mode = SINGLETON, priority = REFERENCE)
041public class NotificationsJsonEnricher extends AbstractJsonEnricher<DocumentModel> {
042
043    public static final String NAME = "subscribedNotifications";
044
045    public NotificationsJsonEnricher() {
046        super(NAME);
047    }
048
049    @Override
050    public void write(JsonGenerator jg, DocumentModel document) throws IOException {
051        jg.writeFieldName(NAME);
052        jg.writeStartArray();
053        try (RenderingContext.SessionWrapper wrapper = ctx.getSession(document)) {
054            String username = NotificationConstants.USER_PREFIX + wrapper.getSession().getPrincipal().getName();
055            List<String> notifications = document.getAdapter(SubscriptionAdapter.class).getUserSubscriptions(username);
056            for (String notification : notifications) {
057                jg.writeString(notification);
058            }
059        }
060        jg.writeEndArray();
061    }
062
063}