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 *     <a href="mailto:grenard@nuxeo.com">Guillaume Renard</a>
018 */
019
020package org.nuxeo.ecm.platform.routing.core.io.enrichers;
021
022import static org.nuxeo.ecm.core.io.registry.reflect.Instantiations.SINGLETON;
023import static org.nuxeo.ecm.core.io.registry.reflect.Priorities.REFERENCE;
024
025import java.io.IOException;
026import java.util.List;
027
028import org.nuxeo.ecm.core.api.DocumentModel;
029import org.nuxeo.ecm.core.io.marshallers.json.enrichers.AbstractJsonEnricher;
030import org.nuxeo.ecm.core.io.registry.context.RenderingContext.SessionWrapper;
031import org.nuxeo.ecm.core.io.registry.reflect.Setup;
032import org.nuxeo.ecm.platform.routing.api.DocumentRoute;
033import org.nuxeo.ecm.platform.routing.api.DocumentRoutingService;
034import org.nuxeo.runtime.api.Framework;
035
036import com.fasterxml.jackson.core.JsonGenerator;
037
038/**
039 * Enricher that add the running workflow instances on a document for the current user.
040 *
041 * @since 8.3
042 */
043@Setup(mode = SINGLETON, priority = REFERENCE)
044public class RunningWorkflowJsonEnricher extends AbstractJsonEnricher<DocumentModel> {
045
046    public static final String NAME = "runningWorkflows";
047
048    public RunningWorkflowJsonEnricher() {
049        super(NAME);
050    }
051
052    @Override
053    public void write(JsonGenerator jg, DocumentModel document) throws IOException {
054        jg.writeFieldName(NAME);
055        jg.writeStartArray();
056        try (SessionWrapper wrapper = ctx.getSession(document)) {
057            DocumentRoutingService documentRoutingService = Framework.getService(DocumentRoutingService.class);
058            List<DocumentRoute> documentRoutes = documentRoutingService.getDocumentRoutesForAttachedDocument(
059                    wrapper.getSession(), document.getId());
060            for (DocumentRoute documentRoute : documentRoutes) {
061                writeEntity(documentRoute, jg);
062            }
063        } finally {
064            jg.writeEndArray();
065        }
066    }
067
068}