/**
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* Copyright (C) 2016 Newland Group Holding Limited
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* <p>
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* <p>
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* http://www.apache.org/licenses/LICENSE-2.0
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* <p>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.codingapi.tx.framework.utils.serializer;
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import com.dyuproject.protostuff.LinkedBuffer;
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import com.dyuproject.protostuff.ProtostuffIOUtil;
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import com.dyuproject.protostuff.Schema;
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import com.lorne.core.framework.exception.SerializerException;
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import org.objenesis.Objenesis;
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import org.objenesis.ObjenesisStd;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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/**
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* @author lorne 2017/11/11
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*/
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public class ProtostuffSerializer implements ISerializer {
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private static final SchemaCache cachedSchema = SchemaCache.getInstance();
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private static final Objenesis objenesis = new ObjenesisStd(true);
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private static <T> Schema<T> getSchema(Class<T> cls) {
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return (Schema<T>) cachedSchema.get(cls);
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}
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@Override
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public byte[] serialize(Object obj) throws SerializerException {
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Class cls = obj.getClass();
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LinkedBuffer buffer = LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE);
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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try {
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Schema schema = getSchema(cls);
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ProtostuffIOUtil.writeTo(outputStream, obj, schema, buffer);
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} catch (Exception e) {
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throw new SerializerException(e.getMessage(), e);
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} finally {
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buffer.clear();
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}
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return outputStream.toByteArray();
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}
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@Override
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public <T> T deSerialize(byte[] param, Class<T> clazz) throws SerializerException {
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T object;
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try {
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ByteArrayInputStream inputStream = new ByteArrayInputStream(param);
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Class cls = clazz;
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object = objenesis.newInstance((Class<T>) cls);
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Schema schema = getSchema(cls);
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ProtostuffIOUtil.mergeFrom(inputStream, object, schema);
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return object;
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} catch (Exception e) {
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throw new SerializerException(e.getMessage(), e);
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}
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}
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}
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