From 250dc821dd304ca72058012b5a387194489cbe72 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Wed, 29 Jul 2020 20:58:02 -0700 Subject: Implement PST commands --- .../java/org/traccar/protocol/PstFrameEncoder.java | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 src/main/java/org/traccar/protocol/PstFrameEncoder.java (limited to 'src/main/java/org/traccar/protocol/PstFrameEncoder.java') diff --git a/src/main/java/org/traccar/protocol/PstFrameEncoder.java b/src/main/java/org/traccar/protocol/PstFrameEncoder.java new file mode 100644 index 000000000..33ae43fca --- /dev/null +++ b/src/main/java/org/traccar/protocol/PstFrameEncoder.java @@ -0,0 +1,41 @@ +/* + * Copyright 2020 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.ChannelHandlerContext; +import io.netty.handler.codec.MessageToByteEncoder; + +public class PstFrameEncoder extends MessageToByteEncoder { + + @Override + protected void encode(ChannelHandlerContext ctx, ByteBuf msg, ByteBuf out) { + + out.writeByte('('); + while (msg.isReadable()) { + int b = msg.readUnsignedByte(); + if (b == 0x27 || b == 0x28 || b == 0x29) { + out.writeByte(0x27); + out.writeByte(b ^ 0x40); + } else { + out.writeByte(b); + } + } + out.writeByte(')'); + + msg.release(); + } +} -- cgit v1.2.3