diff options
Diffstat (limited to 'src/org/traccar/protocol/TotemFrameDecoder.java')
-rw-r--r-- | src/org/traccar/protocol/TotemFrameDecoder.java | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/src/org/traccar/protocol/TotemFrameDecoder.java b/src/org/traccar/protocol/TotemFrameDecoder.java deleted file mode 100644 index 3fa5abc7a..000000000 --- a/src/org/traccar/protocol/TotemFrameDecoder.java +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright 2013 - 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 java.nio.charset.StandardCharsets; - -import org.traccar.BaseFrameDecoder; -import org.traccar.helper.BufferUtil; - -public class TotemFrameDecoder extends BaseFrameDecoder { - - @Override - protected Object decode( - ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception { - - if (buf.readableBytes() < 10) { - return null; - } - - int beginIndex = BufferUtil.indexOf("$$", buf); - if (beginIndex == -1) { - return null; - } else if (beginIndex > buf.readerIndex()) { - buf.readerIndex(beginIndex); - } - - int length; - - if (buf.getByte(buf.readerIndex() + 2) == (byte) '0') { - length = Integer.parseInt(buf.toString(buf.readerIndex() + 2, 4, StandardCharsets.US_ASCII)); - } else { - length = Integer.parseInt(buf.toString(buf.readerIndex() + 2, 2, StandardCharsets.US_ASCII), 16); - } - - if (length <= buf.readableBytes()) { - return buf.readRetainedSlice(length); - } - - return null; - } - -} |