1 files changed, 0 insertions, 81 deletions
diff --git a/src/org/traccar/protocol/At2000FrameDecoder.java b/src/org/traccar/protocol/At2000FrameDecoder.java
deleted file mode 100644
index 5fa82a5f7..000000000
--- a/src/org/traccar/protocol/At2000FrameDecoder.java
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright 2016 - 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.buffer.Unpooled;
-import io.netty.channel.Channel;
-import io.netty.channel.ChannelHandlerContext;
-import org.traccar.BaseFrameDecoder;
-import org.traccar.NetworkMessage;
-
-public class At2000FrameDecoder extends BaseFrameDecoder {
-
-    private static final int BLOCK_LENGTH = 16;
-    private static final int ACK_LENGTH = 496;
-
-    private boolean firstPacket = true;
-
-    private ByteBuf currentBuffer;
-    private int acknowledgedBytes;
-
-    private void sendResponse(Channel channel) {
-        if (channel != null) {
-            ByteBuf response = Unpooled.buffer(2 * BLOCK_LENGTH);
-            response.writeByte(At2000ProtocolDecoder.MSG_ACKNOWLEDGEMENT);
-            response.writeMedium(1);
-            response.writeByte(0x00); // success
-            response.writerIndex(2 * BLOCK_LENGTH);
-            channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
-        }
-    }
-
-    @Override
-    protected Object decode(
-            ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {
-
-        if (buf.readableBytes() < 5) {
-            return null;
-        }
-
-        int length;
-        if (firstPacket) {
-            firstPacket = false;
-            length = buf.getUnsignedMediumLE(buf.readerIndex() + 2);
-        } else {
-            length = buf.getUnsignedMediumLE(buf.readerIndex() + 1);
-        }
-
-        length += BLOCK_LENGTH;
-        if (length % BLOCK_LENGTH != 0) {
-            length = (length / BLOCK_LENGTH + 1) * BLOCK_LENGTH;
-        }
-
-        if ((buf.readableBytes() >= length || buf.readableBytes() % ACK_LENGTH == 0)
-                && (buf != currentBuffer || buf.readableBytes() > acknowledgedBytes)) {
-            sendResponse(channel);
-            currentBuffer = buf;
-            acknowledgedBytes = buf.readableBytes();
-        }
-
-        if (buf.readableBytes() >= length) {
-            return buf.readRetainedSlice(length);
-        }
-
-        return null;
-    }
-
-}