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Code Issues Packages Projects Releases 2 Wiki Activity

#1399 Resolves device ID parsing issue for Motorola ARS Device Registration. (#1400)

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Co-authored-by: Dennis Sheirer <dsheirer@github.com>
This commit is contained in:
Denny Sheirer
2023-01-06 04:17:57 -05:00
committed by GitHub
parent e4a85a4ed7
commit 8ce8aaddf9
4 changed files with 83 additions and 63 deletions
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77
src/main/java/io/github/dsheirer/bits/BinaryMessage.java
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@@ -1,32 +1,28 @@
/*
* *****************************************************************************
* Copyright (C) 2014-2023 Dennis Sheirer
*
* * ******************************************************************************
* * Copyright (C) 2014-2019 Dennis Sheirer
* *
* * This program is free software: you can redistribute it and/or modify
* * it under the terms of the GNU General Public License as published by
* * the Free Software Foundation, either version 3 of the License, or
* * (at your option) any later version.
* *
* * This program is distributed in the hope that it will be useful,
* * but WITHOUT ANY WARRANTY; without even the implied warranty of
* * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* * GNU General Public License for more details.
* *
* * You should have received a copy of the GNU General Public License
* * along with this program. If not, see <http://www.gnu.org/licenses/>
* * *****************************************************************************
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
* ****************************************************************************
*/
package io.github.dsheirer.bits;
import io.github.dsheirer.edac.CRC;
import java.util.BitSet;
import org.apache.commons.lang3.Validate;
import org.apache.commons.math3.util.FastMath;
import java.util.BitSet;
public class BinaryMessage extends BitSet
{
private static final long serialVersionUID = 1L;
@@ -1038,6 +1034,51 @@ public class BinaryMessage extends BitSet
return buffer;
}
/**
* Loads the hexadecimal text into a binary message
* @param hex text to load from
* @return loaded binary message
*/
public static BinaryMessage loadHex(String hex)
{
if(!hex.matches("[0-9A-F]*"))
{
throw new IllegalArgumentException("Message must contain only 0-9 and A-F hexadecimal characters");
}
int length = hex.length() / 2;
if(length * 2 < hex.length())
{
length++;
}
BinaryMessage buffer = new BinaryMessage(length * 8);
int bufferOffset = 0;
for(int x = 0; x < hex.length(); x += 2)
{
int endIndex = x + 2;
if(endIndex > hex.length())
{
endIndex--;
}
String rawHex = hex.substring(x, endIndex);
if(rawHex.length() == 1)
{
rawHex = rawHex + "0";
}
int value = Integer.parseInt(rawHex, 16);
buffer.setByte(bufferOffset, (byte)(value & 0xFF));
bufferOffset += 8;
}
return buffer;
}
/**
* Left rotates the bits between start and end indices, number of places.
*/