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authorAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
commit59416923dcb3a756eaf532cc4259f2f6625c0762 (patch)
tree9082dae6616deac8fda432b7bfd80e4a52b6d9dc /src/org/traccar/helper/BitBuffer.java
parent79a129dd6327d932133d6b9a50190d3f4927bff9 (diff)
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Convert project to gradle
Diffstat (limited to 'src/org/traccar/helper/BitBuffer.java')
-rw-r--r--src/org/traccar/helper/BitBuffer.java101
1 files changed, 0 insertions, 101 deletions
diff --git a/src/org/traccar/helper/BitBuffer.java b/src/org/traccar/helper/BitBuffer.java
deleted file mode 100644
index f30a4557b..000000000
--- a/src/org/traccar/helper/BitBuffer.java
+++ /dev/null
@@ -1,101 +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.helper;
-
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.Unpooled;
-
-public class BitBuffer {
-
- private final ByteBuf buffer;
-
- private int writeByte;
- private int writeCount;
-
- private int readByte;
- private int readCount;
-
- public BitBuffer() {
- buffer = Unpooled.buffer();
- }
-
- public BitBuffer(ByteBuf buffer) {
- this.buffer = buffer;
- }
-
- public void writeEncoded(byte[] bytes) {
- for (byte b : bytes) {
- b -= 48;
- if (b > 40) {
- b -= 8;
- }
- write(b);
- }
- }
-
- public void write(int b) {
- if (writeCount == 0) {
- writeByte |= b;
- writeCount = 6;
- } else {
- int remaining = 8 - writeCount;
- writeByte <<= remaining;
- writeByte |= b >> (6 - remaining);
- buffer.writeByte(writeByte);
- writeByte = b & ((1 << (6 - remaining)) - 1);
- writeCount = 6 - remaining;
- }
- }
-
- public int readUnsigned(int length) {
- int result = 0;
-
- while (length > 0) {
- if (readCount == 0) {
- readByte = buffer.readUnsignedByte();
- readCount = 8;
- }
- if (readCount >= length) {
- result <<= length;
- result |= readByte >> (readCount - length);
- readByte &= (1 << (readCount - length)) - 1;
- readCount -= length;
- length = 0;
- } else {
- result <<= readCount;
- result |= readByte;
- length -= readCount;
- readByte = 0;
- readCount = 0;
- }
- }
-
- return result;
- }
-
- public int readSigned(int length) {
- int result = readUnsigned(length);
- int signBit = 1 << (length - 1);
- if ((result & signBit) == 0) {
- return result;
- } else {
- result &= signBit - 1;
- result += ~(signBit - 1);
- return result;
- }
- }
-
-}