io.mantisrx.runtime.codec.JacksonCodecs Maven / Gradle / Ivy
/*
* Copyright 2019 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 io.mantisrx.runtime.codec;
import io.mantisrx.common.codec.Codec;
import io.mantisrx.shaded.com.fasterxml.jackson.core.JsonProcessingException;
import io.mantisrx.shaded.com.fasterxml.jackson.core.type.TypeReference;
import io.mantisrx.shaded.com.fasterxml.jackson.databind.DeserializationFeature;
import io.mantisrx.shaded.com.fasterxml.jackson.databind.ObjectMapper;
import io.mantisrx.shaded.com.fasterxml.jackson.databind.ObjectReader;
import io.mantisrx.shaded.com.fasterxml.jackson.dataformat.cbor.CBORFactory;
import io.mantisrx.shaded.com.fasterxml.jackson.module.afterburner.AfterburnerModule;
import java.io.IOException;
import java.util.List;
import java.util.Map;
public class JacksonCodecs {
private final static ObjectMapper mapper;
static {
mapper = new ObjectMapper(new CBORFactory());
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
mapper.registerModule(new AfterburnerModule());
}
public static Codec pojo(final Class clazz) {
return new Codec() {
@Override
public byte[] encode(T value) {
try {
return mapper.writeValueAsBytes(value);
} catch (JsonProcessingException e) {
throw new RuntimeException("Failed to write bytes for value: " + value, e);
}
}
@Override
public T decode(byte[] bytes) {
try {
return mapper.readValue(bytes, clazz);
} catch (IOException e) {
throw new RuntimeException("Failed to convert to type: " + clazz.toString(), e);
}
}
};
}
public static Codec> list() {
return new Codec>() {
@Override
public byte[] encode(List value) {
try {
return mapper.writeValueAsBytes(value);
} catch (JsonProcessingException e) {
throw new RuntimeException("Failed to write list to bytes", e);
}
}
@Override
public List decode(byte[] bytes) {
try {
return mapper.readValue(bytes, new TypeReference>() {});
} catch (IOException e) {
throw new RuntimeException("Failed to convert bytes to list", e);
}
}
};
}
public static Codec> mapStringObject() {
return new Codec>() {
private final ObjectReader reader = mapper.readerFor(Map.class);
@Override
public byte[] encode(Map map) {
try {
return mapper.writeValueAsBytes(map);
} catch (IOException e) {
throw new RuntimeException("Failed to write bytes for map: " + map, e);
}
}
@Override
public Map decode(byte[] bytes) {
try {
return reader.readValue(bytes);
} catch (IOException e) {
throw new RuntimeException("Failed to convert bytes to map", e);
}
}
};
}
}