| /* |
| * 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.apache.jackrabbit.oak.segment.test.proxy; |
| |
| import io.netty.buffer.ByteBuf; |
| import io.netty.buffer.Unpooled; |
| import io.netty.channel.ChannelHandlerContext; |
| import io.netty.channel.ChannelInboundHandlerAdapter; |
| |
| class SkipHandler extends ChannelInboundHandlerAdapter { |
| |
| private int cur; |
| |
| private int pos; |
| |
| private int len; |
| |
| SkipHandler(int pos, int len) { |
| this.pos = pos; |
| this.len = len; |
| } |
| |
| @Override |
| public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { |
| if (msg instanceof ByteBuf) { |
| onByteBuf(ctx, (ByteBuf) msg); |
| } else { |
| ctx.fireChannelRead(msg); |
| } |
| } |
| |
| private void onByteBuf(ChannelHandlerContext ctx, ByteBuf in) { |
| ByteBuf out = Unpooled.buffer(); |
| for (int i = 0; i < in.readableBytes(); i++) { |
| if (cur < pos || pos + len <= cur) { |
| out.writeByte(in.getByte(i)); |
| } |
| cur++; |
| } |
| if (out.readableBytes() > 0) { |
| ctx.fireChannelRead(out); |
| } |
| } |
| |
| } |