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authorAnton Tananaev <anton.tananaev@gmail.com>2011-11-11 13:46:52 +0000
committerAnton Tananaev <anton.tananaev@gmail.com>2011-11-11 13:46:52 +0000
commite7c57a86e55868e3563e023a6dc70e7848c55d20 (patch)
tree61cb0d82671cb68c18bc34be32467548de8b36cf /src/net/sourceforge/opentracking/protocol/xexun/XexunFrameDecoder.java
parenta88479f670fea8f6c7f5fdf13c7dffa67772d854 (diff)
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Diffstat (limited to 'src/net/sourceforge/opentracking/protocol/xexun/XexunFrameDecoder.java')
-rw-r--r--src/net/sourceforge/opentracking/protocol/xexun/XexunFrameDecoder.java92
1 files changed, 0 insertions, 92 deletions
diff --git a/src/net/sourceforge/opentracking/protocol/xexun/XexunFrameDecoder.java b/src/net/sourceforge/opentracking/protocol/xexun/XexunFrameDecoder.java
deleted file mode 100644
index 839e5b3ec..000000000
--- a/src/net/sourceforge/opentracking/protocol/xexun/XexunFrameDecoder.java
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Copyright 2010 Anton Tananaev (anton@tananaev.com)
- *
- * 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 net.sourceforge.opentracking.protocol.xexun;
-
-import org.jboss.netty.handler.codec.frame.FrameDecoder;
-import org.jboss.netty.channel.Channel;
-import org.jboss.netty.channel.ChannelHandlerContext;
-import org.jboss.netty.buffer.ChannelBuffer;
-
-public class XexunFrameDecoder extends FrameDecoder {
-
- /**
- * Find string in network buffer
- */
- private static Integer find(
- ChannelBuffer buf,
- Integer start,
- Integer length,
- String subString) {
-
- int index = start;
- boolean match;
-
- for (; index < length; index++) {
- match = true;
-
- for (int i = 0; i < subString.length(); i++) {
- char c = (char) buf.getByte(index + i);
- if (c != subString.charAt(i)) {
- match = false;
- break;
- }
- }
-
- if (match) {
- return index;
- }
- }
-
- return null;
- }
-
- protected Object decode(
- ChannelHandlerContext ctx,
- Channel channel,
- ChannelBuffer buf) throws Exception {
-
- // Check minimum length
- int length = buf.readableBytes();
- if (length < 100) {
- return null;
- }
-
- // Find start
- Integer beginIndex = find(buf, 0, length, "GPRMC");
- if (beginIndex == null) {
- return null;
- }
-
- // Find identifier
- Integer idIndex = find(buf, beginIndex, length, "imei:");
- if (idIndex == null) {
- return null;
- }
-
- // Find end
- Integer endIndex = find(buf, idIndex, length, ",");
- if (endIndex == null) {
- return null;
- }
-
- // Read buffer
- buf.skipBytes(beginIndex);
- ChannelBuffer frame = buf.readBytes(endIndex - beginIndex + 1);
-
- return frame;
- }
-
-}