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 6940d7b46..000000000 --- a/src/org/traccar/protocol/TotemFrameDecoder.java +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright 2013 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 org.jboss.netty.buffer.ChannelBuffer; -import org.jboss.netty.channel.Channel; -import org.jboss.netty.channel.ChannelHandlerContext; -import org.jboss.netty.handler.codec.frame.FrameDecoder; -import org.traccar.helper.StringFinder; - -import java.nio.charset.StandardCharsets; - -public class TotemFrameDecoder extends FrameDecoder { - - @Override - protected Object decode( - ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception { - - if (buf.readableBytes() < 10) { - return null; - } - - int beginIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("$$")); - if (beginIndex == -1) { - return null; - } else if (beginIndex > buf.readerIndex()) { - buf.readerIndex(beginIndex); - } - - int length; - - int flagIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("AA")); - if (flagIndex != -1 && flagIndex - beginIndex == 6) { - 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.readBytes(length); - } - - return null; - } - -} |