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Add toBigInteger() to 128-bit and 256-bit integers #692

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lijamie98 wants to merge 2 commits into from
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Add toBigInteger() to 128-bit and 256-bit integers #692

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717e7b6
Add toBigInteger to Int128Parts and Int256Parts
lijamie98 May 23, 2025
4696f40
Add toBigInteger to Uint128Parts and Uint256Parts
lijamie98 May 23, 2025
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7 changes: 7 additions & 0 deletions src/main/java/org/stellar/sdk/xdr/Int128Parts.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.math.BigInteger;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
Expand Down Expand Up @@ -46,6 +47,12 @@ public static Int128Parts fromXdrBase64(String xdr) throws IOException {
return fromXdrByteArray(bytes);
}

public BigInteger toBigInteger() {
BigInteger hiValue = BigInteger.valueOf(hi.getInt64());
BigInteger loValue = lo.getUint64().getNumber();
return hiValue.shiftLeft(64).add(loValue);
}

public static Int128Parts fromXdrByteArray(byte[] xdr) throws IOException {
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(xdr);
XdrDataInputStream xdrDataInputStream = new XdrDataInputStream(byteArrayInputStream);
Expand Down
14 changes: 14 additions & 0 deletions src/main/java/org/stellar/sdk/xdr/Int256Parts.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.math.BigInteger;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
Expand Down Expand Up @@ -54,6 +55,19 @@ public static Int256Parts fromXdrBase64(String xdr) throws IOException {
return fromXdrByteArray(bytes);
}

public BigInteger toBigInteger() {
BigInteger hi_hiValue = BigInteger.valueOf(hi_hi.getInt64());
BigInteger hi_loValue = hi_lo.getUint64().getNumber();
BigInteger lo_hiValue = lo_hi.getUint64().getNumber();
BigInteger lo_loValue = lo_lo.getUint64().getNumber();

return hi_hiValue
.shiftLeft(192)
.add(hi_loValue.shiftLeft(128))
.add(lo_hiValue.shiftLeft(64))
.add(lo_loValue);
}

public static Int256Parts fromXdrByteArray(byte[] xdr) throws IOException {
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(xdr);
XdrDataInputStream xdrDataInputStream = new XdrDataInputStream(byteArrayInputStream);
Expand Down
7 changes: 7 additions & 0 deletions src/main/java/org/stellar/sdk/xdr/UInt128Parts.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.math.BigInteger;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
Expand Down Expand Up @@ -46,6 +47,12 @@ public static UInt128Parts fromXdrBase64(String xdr) throws IOException {
return fromXdrByteArray(bytes);
}

public BigInteger toBigInteger() {
BigInteger hiValue = hi.getUint64().getNumber();
BigInteger loValue = lo.getUint64().getNumber();
return hiValue.shiftLeft(64).add(loValue);
}

public static UInt128Parts fromXdrByteArray(byte[] xdr) throws IOException {
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(xdr);
XdrDataInputStream xdrDataInputStream = new XdrDataInputStream(byteArrayInputStream);
Expand Down
13 changes: 13 additions & 0 deletions src/main/java/org/stellar/sdk/xdr/UInt256Parts.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.math.BigInteger;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
Expand Down Expand Up @@ -49,6 +50,18 @@ public static UInt256Parts decode(XdrDataInputStream stream) throws IOException
return decodedUInt256Parts;
}

public BigInteger toBigInteger() {
BigInteger hi_hiValue = hi_hi.getUint64().getNumber();
BigInteger hi_loValue = hi_lo.getUint64().getNumber();
BigInteger lo_hiValue = lo_hi.getUint64().getNumber();
BigInteger lo_loValue = lo_lo.getUint64().getNumber();
return hi_hiValue
.shiftLeft(192)
.add(hi_loValue.shiftLeft(128))
.add(lo_hiValue.shiftLeft(64))
.add(lo_loValue);
}

public static UInt256Parts fromXdrBase64(String xdr) throws IOException {
byte[] bytes = Base64Factory.getInstance().decode(xdr);
return fromXdrByteArray(bytes);
Expand Down
5 changes: 5 additions & 0 deletions src/main/java/org/stellar/sdk/xdr/Uint256.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.math.BigInteger;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
Expand Down Expand Up @@ -36,6 +37,10 @@ public static Uint256 decode(XdrDataInputStream stream) throws IOException {
return decodedUint256;
}

public BigInteger toBigInteger() {
return new BigInteger(1, uint256);
}

public static Uint256 fromXdrBase64(String xdr) throws IOException {
byte[] bytes = Base64Factory.getInstance().decode(xdr);
return fromXdrByteArray(bytes);
Expand Down