diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/RetranslatorFrameDecoder.java')
-rw-r--r-- | src/main/java/org/traccar/protocol/RetranslatorFrameDecoder.java | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/RetranslatorFrameDecoder.java b/src/main/java/org/traccar/protocol/RetranslatorFrameDecoder.java new file mode 100644 index 000000000..4edd09418 --- /dev/null +++ b/src/main/java/org/traccar/protocol/RetranslatorFrameDecoder.java @@ -0,0 +1,37 @@ +/* + * Copyright 2018 Anton Tananaev (anton@traccar.org) + * + * 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.traccar.protocol; + +import io.netty.buffer.ByteBuf; +import io.netty.channel.Channel; +import io.netty.channel.ChannelHandlerContext; +import org.traccar.BaseFrameDecoder; + +public class RetranslatorFrameDecoder extends BaseFrameDecoder { + + @Override + protected Object decode( + ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception { + + int length = 4 + buf.getIntLE(buf.readerIndex()); + if (buf.readableBytes() >= length) { + return buf.readRetainedSlice(length); + } else { + return null; + } + } + +} |