/
ServicesDeserializer.java
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/
ServicesDeserializer.java
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/*
* Copyright © 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.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonMappingException;
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.discovery.EndpointDiscoveryService;
import io.gravitee.definition.model.services.dynamicproperty.DynamicPropertyService;
import io.gravitee.definition.model.services.healthcheck.HealthCheckService;
import java.io.IOException;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
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(HealthCheckService.SERVICE_KEY, HealthCheckService.class);
registeredServices.put(DynamicPropertyService.SERVICE_KEY, DynamicPropertyService.class);
registeredServices.put(EndpointDiscoveryService.SERVICE_KEY, EndpointDiscoveryService.class);
}
public ServicesDeserializer(Class<Services> vc) {
super(vc);
}
@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<>();
Iterator<String> fieldNames = node.fieldNames();
while (fieldNames.hasNext()) {
try {
String serviceType = fieldNames.next();
JsonNode serviceNode = node.findValue(serviceType);
Class<? extends Service> serviceClass = registeredServices.get(serviceType);
if (serviceClass != null) {
Service service = serviceNode
.traverse(jp.getCodec())
.readValueAs(
new TypeReference<Service>() {
@Override
public Type getType() {
return serviceClass;
}
}
);
if (service != null) {
individualServices.add(service);
}
}
} catch (IOException ioe) {
throw JsonMappingException.from(ctxt, ioe.getMessage());
}
}
services.set(individualServices);
return services;
}
}