49 lines
1.5 KiB
Java
49 lines
1.5 KiB
Java
package io.github.ehlxr.did.server.sdk;
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import io.github.ehlxr.did.common.NettyUtil;
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import io.github.ehlxr.did.common.SdkProto;
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import io.netty.buffer.ByteBuf;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.FixedLengthFrameDecoder;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* @author ehlxr
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*/
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public class SdkServerDecoder extends FixedLengthFrameDecoder {
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private static final Logger logger = LoggerFactory.getLogger(SdkServerDecoder.class);
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SdkServerDecoder(int frameLength) {
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super(frameLength);
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}
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@Override
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protected Object decode(ChannelHandlerContext ctx, ByteBuf in) {
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ByteBuf buf = null;
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try {
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buf = (ByteBuf) super.decode(ctx, in);
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if (buf == null) {
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return null;
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}
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return new SdkProto(buf.readInt(), buf.readLong());
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} catch (Exception e) {
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logger.error("decode exception, " + NettyUtil.parseRemoteAddr(ctx.channel()), e);
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NettyUtil.closeChannel(ctx.channel());
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}finally {
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if (buf != null) {
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buf.release();
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}
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}
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return null;
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}
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@Override
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public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
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Channel channel = ctx.channel();
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logger.error("SdkServerDecoder channel [{}] error and will be closed", NettyUtil.parseRemoteAddr(channel),cause);
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NettyUtil.closeChannel(channel);
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}
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}
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