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 Renard</a>
018 *
019 */
020package org.nuxeo.ecm.platform.routing.core.io;
021
022import static org.nuxeo.ecm.core.io.marshallers.json.document.DocumentPropertiesJsonReader.DEFAULT_SCHEMA_NAME;
023import static org.nuxeo.ecm.core.io.registry.reflect.Instantiations.SINGLETON;
024import static org.nuxeo.ecm.core.io.registry.reflect.Priorities.REFERENCE;
025
026import java.io.Closeable;
027import java.io.IOException;
028import java.io.Serializable;
029import java.lang.reflect.ParameterizedType;
030import java.lang.reflect.Type;
031import java.util.ArrayList;
032import java.util.HashMap;
033import java.util.Iterator;
034import java.util.List;
035import java.util.Map;
036
037import javax.inject.Inject;
038import javax.ws.rs.core.MediaType;
039import org.apache.commons.lang3.reflect.TypeUtils;
040import org.apache.commons.logging.Log;
041import org.apache.commons.logging.LogFactory;
042import org.codehaus.jackson.JsonNode;
043import org.nuxeo.ecm.core.api.CoreSession;
044import org.nuxeo.ecm.core.api.DocumentModel;
045import org.nuxeo.ecm.core.api.IdRef;
046import org.nuxeo.ecm.core.api.model.Property;
047import org.nuxeo.ecm.core.io.marshallers.json.EntityJsonReader;
048import org.nuxeo.ecm.core.io.registry.context.RenderingContext.SessionWrapper;
049import org.nuxeo.ecm.core.io.registry.reflect.Setup;
050import org.nuxeo.ecm.core.schema.SchemaManager;
051import org.nuxeo.ecm.core.schema.types.CompositeType;
052import org.nuxeo.ecm.platform.routing.api.DocumentRoutingService;
053import org.nuxeo.ecm.platform.routing.core.impl.GraphRoute;
054import org.nuxeo.runtime.api.Framework;
055
056/**
057 * @since 8.2
058 */
059@Setup(mode = SINGLETON, priority = REFERENCE)
060public class WorkflowRequestJsonReader extends EntityJsonReader<WorkflowRequest> {
061
062    protected static final Log log = LogFactory.getLog(WorkflowRequestJsonReader.class);
063
064    public static final String ENTITY_TYPE = "workflow";
065
066    private static final String USE_LEGACY_CONF_KEY = "nuxeo.document.routing.json.format.legacy";
067
068    private Boolean useLegacy = null;
069
070    @Inject
071    SchemaManager schemaManager;
072
073    @Inject
074    DocumentRoutingService documentRoutingService;
075
076    public WorkflowRequestJsonReader() {
077        super(WorkflowRequestJsonReader.ENTITY_TYPE);
078        String prop = Framework.getProperty(USE_LEGACY_CONF_KEY);
079        if (prop != null && Boolean.parseBoolean(prop)) {
080            useLegacy = Boolean.TRUE;
081        } else {
082            useLegacy = Boolean.FALSE;
083        }
084    }
085
086    @Override
087    public boolean accept(Class<?> clazz, Type genericType, MediaType mediatype) {
088        return !useLegacy && !ctx.getBooleanParameter(USE_LEGACY_CONF_KEY)
089                && super.accept(clazz, genericType, mediatype);
090    }
091
092    @Override
093    protected WorkflowRequest readEntity(JsonNode jn) throws IOException {
094        String workflowModelName = getStringField(jn, "workflowModelName");
095        List<String> attachedDocumentIds = new ArrayList<String>();
096        JsonNode attachedDocumentIdsNode = jn.get("attachedDocumentIds");
097        if (attachedDocumentIdsNode != null) {
098            for (Iterator<JsonNode> it = attachedDocumentIdsNode.getElements(); it.hasNext();) {
099                attachedDocumentIds.add(it.next().getTextValue());
100            }
101        }
102        Map<String, Serializable> variables = new HashMap<>();
103        JsonNode variablesNode = jn.get("variables");
104        if (variablesNode != null) {
105            try (SessionWrapper closeable = ctx.getSession(null)) {
106                CoreSession session = closeable.getSession();
107                String workflowModelId = documentRoutingService.getRouteModelDocIdWithId(session, workflowModelName);
108                DocumentModel model = session.getDocument(new IdRef(workflowModelId));
109                String workflowSchemaFacet = (String) model.getPropertyValue(GraphRoute.PROP_VARIABLES_FACET);
110                CompositeType type = schemaManager.getFacet(workflowSchemaFacet);
111                String workflowSchema = type.getSchemaNames()[0];
112                variables.putAll(getVariables(variablesNode, workflowSchema));
113            }
114        }
115
116        return new WorkflowRequest(workflowModelName, attachedDocumentIds, variables);
117    }
118
119    private Map<String, Serializable> getVariables(JsonNode variables, String schemaName) throws IOException {
120        Map<String, Serializable> variable = new HashMap<>();
121        ParameterizedType genericType = TypeUtils.parameterize(List.class, Property.class);
122        try (Closeable resource = ctx.wrap().with(DEFAULT_SCHEMA_NAME, schemaName).open()) {
123            List<Property> properties = readEntity(List.class, genericType, variables);
124            for (Property property : properties) {
125                variable.put(property.getName().substring(schemaName.length() + 1), property.getValue());
126            }
127        }
128        return variable;
129    }
130
131}