| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.unomi.rest.deserializers; |
| |
| import com.fasterxml.jackson.core.JsonParser; |
| import com.fasterxml.jackson.core.JsonProcessingException; |
| import com.fasterxml.jackson.databind.DeserializationContext; |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.deser.std.StdDeserializer; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import org.apache.unomi.api.Event; |
| import org.apache.unomi.api.EventsCollectorRequest; |
| import org.apache.unomi.api.services.SchemaService; |
| import org.apache.unomi.rest.exception.InvalidRequestException; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Custom deserializer for EventCollectorRequest that do validate the events using JSon Schema |
| */ |
| public class EventsCollectorRequestDeserializer extends StdDeserializer<EventsCollectorRequest> { |
| |
| private final SchemaService schemaService; |
| |
| public EventsCollectorRequestDeserializer(SchemaService schemaRegistry) { |
| this(null, schemaRegistry); |
| } |
| |
| public EventsCollectorRequestDeserializer(Class<EventsCollectorRequest> vc, SchemaService schemaService) { |
| super(vc); |
| this.schemaService = schemaService; |
| } |
| |
| @Override |
| public EventsCollectorRequest deserialize(JsonParser jsonParser, DeserializationContext context) throws IOException, JsonProcessingException { |
| JsonNode node = jsonParser.getCodec().readTree(jsonParser); |
| if (!schemaService.isValid(node, "https://unomi.apache.org/schemas/json/eventscollectorrequest/1-0-0")) { |
| throw new InvalidRequestException("Invalid events collector object", "Invalid received data"); |
| } |
| |
| // Validate schema on each event |
| List<Event> filteredEvents = new ArrayList<>(); |
| final JsonNode eventsNode = node.get("events"); |
| if (eventsNode instanceof ArrayNode) { |
| for (JsonNode event : eventsNode) { |
| if (schemaService.isValid(event, "https://unomi.apache.org/schemas/json/events/" + event.get("eventType").textValue() + "/1-0-0")) { |
| filteredEvents.add(jsonParser.getCodec().treeToValue(event, Event.class)); |
| } |
| } |
| } |
| EventsCollectorRequest eventsCollectorRequest = new EventsCollectorRequest(); |
| final JsonNode sessionId = node.get("sessionId"); |
| if (sessionId != null) { |
| eventsCollectorRequest.setSessionId(sessionId.textValue()); |
| } |
| eventsCollectorRequest.setEvents(filteredEvents); |
| return eventsCollectorRequest; |
| } |
| } |