ziver/hal
1
1
Fork 0
Code Pull requests Releases Activity

Basic implementation of Binary struct parsing

Browse source
This commit is contained in:
Ziver Koc 2016-01-31 15:13:07 +01:00
parent da54bc8db5
commit b7bedc94cd
5 changed files with 123 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

43
src/zutil/parser/binary/BinaryStructParser.java
View file

@ -5,18 +5,20 @@ import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import zutil.ByteUtil;
import zutil.converters.Converter;
import zutil.parser.binary.BinaryStruct.*;
/**
* Created by ezivkoc on 2016-01-28.
* Created by Ziver on 2016-01-28.
*/
public class BinaryStructParser {
public static void parse(BinaryStruct struct, byte[] bytes) {
public static void parse(BinaryStruct struct, byte[] data) {
List<BinaryFieldData> structDataList = getStructDataList(struct.getClass());
int bitIndex;
for(BinaryFieldData field : structDataList){
int bitOffset = 0;
for (BinaryFieldData field : structDataList){
bitOffset += field.setValue(struct, data, bitOffset);
}
}
@ -42,9 +44,38 @@ public class BinaryStructParser {
field = f;
BinaryField fieldData = field.getAnnotation(BinaryField.class);
index = fieldData.index();
length = fieldData.index();
length = fieldData.length();
}
protected int setValue(Object obj, byte[] data, int bitOffset){
try {
int byteIndex = bitOffset / 8;
int bitIndex = 7 - bitOffset % 8;
int bitLength = Math.min(bitIndex+1, length);
int readLength = 0;
byte[] valueData = new byte[(int) Math.ceil(length / 8.0)];
for (int index = valueData.length - 1; index >= 0; --index) {
valueData[index] = ByteUtil.getBits(data[byteIndex], bitIndex, bitLength);
readLength += bitLength;
byteIndex++;
bitIndex = 7;
bitLength = Math.min(bitIndex+1, length - readLength);
}
field.setAccessible(true);
if (field.getType() == Boolean.class || field.getType() == boolean.class)
field.set(obj, valueData[0] != 0);
else if (field.getType() == Integer.class || field.getType() == int.class)
field.set(obj, Converter.toInt(valueData));
else if (field.getType() == String.class)
field.set(obj, new String(valueData));
return readLength;
} catch (IllegalAccessException e){
e.printStackTrace();
}
return length; // we return the configured length to not shift the data
}
@Override
public int compareTo(BinaryFieldData o) {