diff options
author | CNlucius <lukai1@huawei.com> | 2016-09-13 11:40:12 +0800 |
---|---|---|
committer | CNlucius <lukai1@huawei.com> | 2016-09-13 11:41:53 +0800 |
commit | b731e2f1dd0972409b136aebc7b463dd72c9cfad (patch) | |
tree | 5107d7d80c19ad8076c2c97c2b5ef8d1cf3ab903 /framework/src/onos/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java | |
parent | ee93993458266114c29271a481ef9ce7ce621b2a (diff) |
ONOSFW-171
O/S-SFC-ONOS scenario documentation
Change-Id: I51ae1cf736ea24ab6680f8edca1b2bf5dd598365
Signed-off-by: CNlucius <lukai1@huawei.com>
Diffstat (limited to 'framework/src/onos/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java')
-rw-r--r-- | framework/src/onos/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/framework/src/onos/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java b/framework/src/onos/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java deleted file mode 100644 index af52a41c..00000000 --- a/framework/src/onos/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Copyright 2014-2015 Open Networking Laboratory - * - * 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 - * - * 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.onlab.netty; - -import static com.google.common.base.Preconditions.checkState; - -import io.netty.buffer.ByteBuf; -import io.netty.channel.ChannelHandlerContext; -import io.netty.handler.codec.ReplayingDecoder; - -import java.util.List; - -import org.onlab.packet.IpAddress; -import org.onlab.packet.IpAddress.Version; -import org.onosproject.store.cluster.messaging.Endpoint; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import com.google.common.base.Charsets; - -/** - * Decoder for inbound messages. - */ -public class MessageDecoder extends ReplayingDecoder<DecoderState> { - - private final Logger log = LoggerFactory.getLogger(getClass()); - - private final int correctPreamble; - private long messageId; - private int preamble; - private Version ipVersion; - private IpAddress senderIp; - private int senderPort; - private int messageTypeLength; - private String messageType; - private int contentLength; - - public MessageDecoder(int correctPreamble) { - super(DecoderState.READ_MESSAGE_PREAMBLE); - this.correctPreamble = correctPreamble; - } - - @Override - protected void decode( - ChannelHandlerContext context, - ByteBuf buffer, - List<Object> out) throws Exception { - - switch (state()) { - case READ_MESSAGE_PREAMBLE: - preamble = buffer.readInt(); - if (preamble != correctPreamble) { - throw new IllegalStateException("This message had an incorrect preamble."); - } - checkpoint(DecoderState.READ_MESSAGE_ID); - case READ_MESSAGE_ID: - messageId = buffer.readLong(); - checkpoint(DecoderState.READ_SENDER_IP_VERSION); - case READ_SENDER_IP_VERSION: - ipVersion = buffer.readByte() == 0x0 ? Version.INET : Version.INET6; - checkpoint(DecoderState.READ_SENDER_IP); - case READ_SENDER_IP: - byte[] octets = new byte[IpAddress.byteLength(ipVersion)]; - buffer.readBytes(octets); - senderIp = IpAddress.valueOf(ipVersion, octets); - checkpoint(DecoderState.READ_SENDER_PORT); - case READ_SENDER_PORT: - senderPort = buffer.readInt(); - checkpoint(DecoderState.READ_MESSAGE_TYPE_LENGTH); - case READ_MESSAGE_TYPE_LENGTH: - messageTypeLength = buffer.readInt(); - checkpoint(DecoderState.READ_MESSAGE_TYPE); - case READ_MESSAGE_TYPE: - byte[] messageTypeBytes = new byte[messageTypeLength]; - buffer.readBytes(messageTypeBytes); - messageType = new String(messageTypeBytes, Charsets.UTF_8); - checkpoint(DecoderState.READ_CONTENT_LENGTH); - case READ_CONTENT_LENGTH: - contentLength = buffer.readInt(); - checkpoint(DecoderState.READ_CONTENT); - case READ_CONTENT: - //TODO Perform a sanity check on the size before allocating - byte[] payload = new byte[contentLength]; - buffer.readBytes(payload); - InternalMessage message = new InternalMessage(messageId, - new Endpoint(senderIp, senderPort), - messageType, - payload); - out.add(message); - checkpoint(DecoderState.READ_MESSAGE_PREAMBLE); - break; - default: - checkState(false, "Must not be here"); - } - } - - @Override - public void exceptionCaught(ChannelHandlerContext context, Throwable cause) { - log.error("Exception inside channel handling pipeline.", cause); - context.close(); - } -} |