io.micronaut.http.netty.body.NettyByteBufMessageBodyHandler Maven / Gradle / Ivy
/*
* Copyright 2017-2023 original authors
*
* 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
*
* https://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.micronaut.http.netty.body;
import io.micronaut.buffer.netty.NettyByteBufferFactory;
import io.micronaut.context.annotation.BootstrapContextCompatible;
import io.micronaut.core.annotation.Experimental;
import io.micronaut.core.annotation.Internal;
import io.micronaut.core.io.buffer.ByteBuffer;
import io.micronaut.core.io.buffer.ByteBufferFactory;
import io.micronaut.core.type.Argument;
import io.micronaut.core.type.Headers;
import io.micronaut.core.type.MutableHeaders;
import io.micronaut.http.MediaType;
import io.micronaut.http.body.ChunkedMessageBodyReader;
import io.micronaut.http.body.TypedMessageBodyHandler;
import io.micronaut.http.codec.CodecException;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufInputStream;
import io.netty.buffer.Unpooled;
import jakarta.inject.Singleton;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* Handler for netty {@link ByteBuf}.
*
* @since 4.0.0
* @author Jonas Konrad
*/
@Internal
@Singleton
@Experimental
@BootstrapContextCompatible
public final class NettyByteBufMessageBodyHandler implements TypedMessageBodyHandler, ChunkedMessageBodyReader {
@Override
public Argument getType() {
return Argument.of(ByteBuf.class);
}
@Override
public Publisher readChunked(Argument type, MediaType mediaType, Headers httpHeaders, Publisher> input) {
return Flux.from(input).map(bb -> (ByteBuf) bb.asNativeBuffer());
}
@Override
public ByteBuf read(Argument type, MediaType mediaType, Headers httpHeaders, ByteBuffer byteBuffer) throws CodecException {
return (ByteBuf) byteBuffer.asNativeBuffer();
}
@Override
public ByteBuf read(Argument type, MediaType mediaType, Headers httpHeaders, InputStream inputStream) throws CodecException {
try {
return Unpooled.wrappedBuffer(inputStream.readAllBytes());
} catch (IOException e) {
throw new CodecException("Failed to read InputStream", e);
}
}
@Override
public void writeTo(Argument type, MediaType mediaType, ByteBuf object, MutableHeaders outgoingHeaders, OutputStream outputStream) throws CodecException {
try {
new ByteBufInputStream(object).transferTo(outputStream);
// ByteBufInputStream#close doesn't release properly
object.release();
} catch (IOException e) {
throw new CodecException("Failed to transfer byte buffer", e);
}
}
@Override
public ByteBuffer writeTo(Argument type, MediaType mediaType, ByteBuf object, MutableHeaders outgoingHeaders, ByteBufferFactory bufferFactory) throws CodecException {
return NettyByteBufferFactory.DEFAULT.wrap(object);
}
}