org.dromara.hmily.common.serializer.ProtostuffSerializer Maven / Gradle / Ivy
/*
* 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.dromara.hmily.common.serializer;
import com.dyuproject.protostuff.LinkedBuffer;
import com.dyuproject.protostuff.ProtostuffIOUtil;
import com.dyuproject.protostuff.Schema;
import org.dromara.hmily.common.enums.SerializeEnum;
import org.dromara.hmily.common.exception.HmilyException;
import org.objenesis.Objenesis;
import org.objenesis.ObjenesisStd;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
/**
* ProtostuffSerializer.
* @author xiaoyu
*/
@SuppressWarnings("unchecked")
public class ProtostuffSerializer implements ObjectSerializer {
private static final SchemaCache CACHED_SCHEMA = SchemaCache.getInstance();
private static final Objenesis OBJENESIS = new ObjenesisStd(true);
private static Schema getSchema(final Class cls) {
return (Schema) CACHED_SCHEMA.get(cls);
}
/**
* 序列化对象.
*
* @param obj 需要序更列化的对象
* @return byte []
* @throws HmilyException 异常
*/
@Override
public byte[] serialize(final Object obj) throws HmilyException {
Class cls = obj.getClass();
LinkedBuffer buffer = LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE);
try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream()) {
Schema schema = getSchema(cls);
ProtostuffIOUtil.writeTo(outputStream, obj, schema, buffer);
return outputStream.toByteArray();
} catch (IOException e) {
throw new HmilyException(e.getMessage(), e);
} finally {
buffer.clear();
}
}
/**
* 反序列化对象.
*
* @param param 需要反序列化的byte []
* @param clazz 转出的对象.
* @return 对象
* @throws HmilyException 异常
*/
@Override
public T deSerialize(final byte[] param, final Class clazz) throws HmilyException {
T object;
try (ByteArrayInputStream inputStream = new ByteArrayInputStream(param)) {
object = OBJENESIS.newInstance(clazz);
Schema schema = getSchema((Class) clazz);
ProtostuffIOUtil.mergeFrom(inputStream, object, schema);
return object;
} catch (IOException e) {
throw new HmilyException(e.getMessage(), e);
}
}
/**
* 设置scheme.
* @return scheme 命名
*/
@Override
public String getScheme() {
return SerializeEnum.PROTOSTUFF.getSerialize();
}
}