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Diffstat (limited to 'src/org/traccar/protocol/Gl200FrameDecoder.java')
-rw-r--r--src/org/traccar/protocol/Gl200FrameDecoder.java96
1 files changed, 0 insertions, 96 deletions
diff --git a/src/org/traccar/protocol/Gl200FrameDecoder.java b/src/org/traccar/protocol/Gl200FrameDecoder.java
deleted file mode 100644
index 960c3779a..000000000
--- a/src/org/traccar/protocol/Gl200FrameDecoder.java
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright 2017 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 java.nio.charset.StandardCharsets;
-import java.util.Arrays;
-import java.util.HashSet;
-import java.util.Set;
-
-public class Gl200FrameDecoder extends FrameDecoder {
-
- private static final int MINIMUM_LENGTH = 11;
-
- private static final Set<String> BINARY_HEADERS = new HashSet<>(
- Arrays.asList("+RSP", "+BSP", "+EVT", "+BVT", "+INF", "+BNF", "+HBD", "+CRD", "+BRD"));
-
- public static boolean isBinary(ChannelBuffer buf) {
- String header = buf.toString(buf.readerIndex(), 4, StandardCharsets.US_ASCII);
- if (header.equals("+ACK")) {
- return buf.getByte(buf.readerIndex() + header.length()) != (byte) ':';
- } else {
- return BINARY_HEADERS.contains(header);
- }
- }
-
- @Override
- protected Object decode(
- ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {
-
- if (buf.readableBytes() < MINIMUM_LENGTH) {
- return null;
- }
-
- if (isBinary(buf)) {
-
- int length;
- switch (buf.toString(buf.readerIndex(), 4, StandardCharsets.US_ASCII)) {
- case "+ACK":
- length = buf.getUnsignedByte(buf.readerIndex() + 6);
- break;
- case "+INF":
- case "+BNF":
- length = buf.getUnsignedShort(buf.readerIndex() + 7);
- break;
- case "+HBD":
- length = buf.getUnsignedByte(buf.readerIndex() + 5);
- break;
- case "+CRD":
- case "+BRD":
- length = buf.getUnsignedShort(buf.readerIndex() + 6);
- break;
- default:
- length = buf.getUnsignedShort(buf.readerIndex() + 9);
- break;
- }
-
- if (buf.readableBytes() >= length) {
- return buf.readBytes(length);
- }
-
- } else {
-
- int endIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '$');
- if (endIndex < 0) {
- endIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0);
- }
- if (endIndex > 0) {
- ChannelBuffer frame = buf.readBytes(endIndex - buf.readerIndex());
- buf.readByte(); // delimiter
- return frame;
- }
-
- }
-
- return null;
- }
-
-}