58 lines
1.7 KiB
Java
58 lines
1.7 KiB
Java
package it.cavallium.datagen.nativedata;
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import it.cavallium.datagen.DataSerializer;
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import it.cavallium.stream.SafeDataInput;
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import it.cavallium.stream.SafeDataOutput;
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import org.jetbrains.annotations.NotNull;
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public class Int52Serializer implements DataSerializer<Int52> {
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public static final Int52Serializer INSTANCE = new Int52Serializer();
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@Override
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public void serialize(SafeDataOutput dataOutput, @NotNull Int52 data) {
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serializeValue(dataOutput, data);
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}
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@NotNull
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@Override
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public Int52 deserialize(SafeDataInput dataInput) {
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return deserializeValue(dataInput);
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}
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public static void serializeValue(SafeDataOutput dataOutput, @NotNull Int52 data) {
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long value = data.getValue();
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for(int i = 0; i < 7; i++) {
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dataOutput.writeByte(((int)((value >> (6 - i) * 8) & (i == 0 ? 0b00001111L : 255L))));
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}
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}
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public static Int52 deserializeValue(SafeDataInput dataInput) {
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long value = dataInput.readInt52();
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return Int52.fromLong(value);
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}
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public static byte[] toByteArray(long value) {
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byte[] result = new byte[7];
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for(int i = 6; i >= 0; --i) {
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result[i] = (byte)((int)(value & (i == 0 ? 0b00001111L : 255L)));
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value >>= 8;
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}
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return result;
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}
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public static long fromByteArray(byte[] bytes) {
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if (bytes.length != 7) {
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throw new IllegalArgumentException("Size must be 7, got " + bytes.length + " instead");
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}
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return fromBytes((byte) (bytes[0] & 0b00001111), bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6]);
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}
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public static long fromBytes(byte b1, byte b2, byte b3, byte b4, byte b5, byte b6, byte b7) {
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return ((long)b1 & 0b00001111) << 48 | ((long)b2 & 255L) << 40 | ((long)b3 & 255L) << 32 | ((long)b4 & 255L) << 24 | ((long)b5 & 255L) << 16 | ((long)b6 & 255L) << 8 | (long)b7 & 255L;
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}
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}
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