77 lines
2.9 KiB
Java
77 lines
2.9 KiB
Java
/*
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* The MIT License (MIT)
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*
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* Copyright © 2020 xrv <xrg@live.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package io.github.ehlxr.did.serializer.impl;
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import io.github.ehlxr.did.common.Try;
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import io.github.ehlxr.did.serializer.Serializer;
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import io.protostuff.LinkedBuffer;
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import io.protostuff.ProtostuffIOUtil;
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import io.protostuff.Schema;
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import io.protostuff.runtime.RuntimeSchema;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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/**
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* @author ehlxr
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* @since 2021-02-09 11:07.
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*/
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public class ProtostuffSerializer implements Serializer {
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private static final Map<Class<?>, Schema<?>> CACHED_SCHEMA = new ConcurrentHashMap<>();
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@Override
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public <T> byte[] serializer(T obj) {
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LinkedBuffer buffer = LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE);
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return Try.<LinkedBuffer, byte[]>of(b -> {
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//noinspection unchecked
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Class<T> clazz = (Class<T>) obj.getClass();
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//noinspection unchecked
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Schema<T> schema = (Schema<T>) CACHED_SCHEMA.get(clazz);
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if (schema == null) {
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schema = RuntimeSchema.getSchema(clazz);
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CACHED_SCHEMA.put(clazz, schema);
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}
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return ProtostuffIOUtil.toByteArray(obj, schema, buffer);
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}).apply(buffer).trap(e -> {
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throw new IllegalStateException(e.getMessage(), e);
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}).andFinally(b -> ((LinkedBuffer) b).clear()).get();
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}
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@Override
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public <T> T deserializer(byte[] bytes, Class<T> clazz) {
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return Try.<byte[], T>of(bs -> {
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Schema<T> schema = RuntimeSchema.getSchema(clazz);
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T message = schema.newMessage();
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ProtostuffIOUtil.mergeFrom(bs, message, schema);
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return message;
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}).trap(e -> {
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throw new IllegalStateException(e.getMessage(), e);
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}).apply(bytes).get();
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}
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}
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