2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.controller.netconf.nettyutil.handler;
11 import io.netty.buffer.ByteBuf;
12 import io.netty.channel.ChannelHandlerContext;
13 import io.netty.handler.codec.ByteToMessageDecoder;
15 import java.util.List;
17 import org.opendaylight.controller.netconf.util.messages.NetconfMessageConstants;
18 import org.slf4j.Logger;
19 import org.slf4j.LoggerFactory;
21 import com.google.common.base.Charsets;
23 public class NetconfEOMAggregator extends ByteToMessageDecoder {
24 private final static Logger logger = LoggerFactory.getLogger(NetconfEOMAggregator.class);
27 protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
28 int index = indexOfSequence(in, NetconfMessageConstants.END_OF_MESSAGE);
30 logger.debug("Message is not complete, read again.");
31 if (logger.isTraceEnabled()) {
32 String str = in.toString(Charsets.UTF_8);
33 logger.trace("Message read so far: {}", str);
37 ByteBuf msg = in.readBytes(index);
38 in.readBytes(NetconfMessageConstants.END_OF_MESSAGE.length);
39 in.discardReadBytes();
40 logger.debug("Message is complete.");
45 private int indexOfSequence(ByteBuf in, byte[] sequence) {
47 for (int i = 0; i < in.readableBytes() - sequence.length + 1; i++) {
48 if (in.getByte(i) == sequence[0]) {
50 for (int j = 1; j < sequence.length; j++) {
51 if (in.getByte(i + j) != sequence[j]) {