/*
* Copyright 2013 Netflix, Inc.
*
* 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 com.netflix.suro.jackson;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.jsontype.NamedType;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import com.fasterxml.jackson.datatype.guava.GuavaModule;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.google.inject.Key;
import com.google.inject.Singleton;
import com.google.inject.name.Names;
import com.netflix.suro.TypeHolder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.nio.ByteOrder;
import java.util.Set;
/**
* The default {@link ObjectMapper} used for serializing and de-serializing JSON objects.
*/
@Singleton
public class DefaultObjectMapper extends ObjectMapper {
private static final Logger LOG = LoggerFactory.getLogger(DefaultObjectMapper.class);
public DefaultObjectMapper() {
this(null, null);
}
@Inject
public DefaultObjectMapper(final Injector injector, Set<TypeHolder> crossInjectable)
{
SimpleModule serializerModule = new SimpleModule("SuroServer default serializers");
serializerModule.addSerializer(ByteOrder.class, ToStringSerializer.instance);
serializerModule.addDeserializer(
ByteOrder.class,
new JsonDeserializer<ByteOrder>()
{
@Override
public ByteOrder deserialize(
JsonParser jp, DeserializationContext ctxt
) throws IOException, JsonProcessingException
{
if (ByteOrder.BIG_ENDIAN.toString().equals(jp.getText())) {
return ByteOrder.BIG_ENDIAN;
}
return ByteOrder.LITTLE_ENDIAN;
}
}
);
registerModule(serializerModule);
registerModule(new GuavaModule());
if (injector != null) {
setInjectableValues(new InjectableValues() {
@Override
public Object findInjectableValue(
Object valueId,
DeserializationContext ctxt,
BeanProperty forProperty,
Object beanInstance
) {
LOG.info("Looking for " + valueId);
try {
return injector.getInstance(Key.get(forProperty.getType().getRawClass(), Names.named((String)valueId)));
} catch (Exception e) {
try {
return injector.getInstance(forProperty.getType().getRawClass());
} catch (Exception ex) {
LOG.info("No implementation found, returning null");
}
return null;
}
}
});
}
configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
configure(MapperFeature.AUTO_DETECT_GETTERS, false);
configure(MapperFeature.AUTO_DETECT_CREATORS, false);
configure(MapperFeature.AUTO_DETECT_FIELDS, false);
configure(MapperFeature.AUTO_DETECT_IS_GETTERS, false);
configure(MapperFeature.AUTO_DETECT_SETTERS, false);
configure(SerializationFeature.INDENT_OUTPUT, false);
if (crossInjectable != null) {
for (TypeHolder entry : crossInjectable) {
LOG.info("Registering subtype : " + entry.getName() + " -> " + entry.getRawType().getCanonicalName());
registerSubtypes(new NamedType(entry.getRawType(), entry.getName()));
}
}
}
}