Java tutorial
/** * Copyright (C) 2015 The Gravitee team (http://gravitee.io) * * Licensed 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 io.gravitee.definition.jackson.datatype.services.core.deser; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.databind.DeserializationContext; import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.deser.std.StdScalarDeserializer; import io.gravitee.definition.model.Service; import io.gravitee.definition.model.services.Services; import io.gravitee.definition.model.services.healthcheck.HealthCheck; import java.io.IOException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; /** * @author David BRASSELY (david.brassely at graviteesource.com) * @author GraviteeSource Team */ public class ServicesDeserializer extends StdScalarDeserializer<Services> { private final Map<String, Class<? extends Service>> registeredServices = new HashMap<>(); { registeredServices.put(HealthCheck.SERVICE_KEY, HealthCheck.class); } public ServicesDeserializer(Class<Services> vc) { super(vc); } public ServicesDeserializer() { super(Services.class); } @Override public Services deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException { JsonNode node = jp.getCodec().readTree(jp); Services services = new Services(); List<Service> individualServices = new ArrayList<>(); node.fields().forEachRemaining(jsonNode -> { try { JsonNode serviceNode = node.findParent(jsonNode.getKey()); Service service = serviceNode.traverse(jp.getCodec()).readValueAs(Service.class); if (service != null) { individualServices.add(service); } } catch (IOException e) { e.printStackTrace(); } }); services.set(individualServices); return services; } }