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Provide public static method for extracting data bytes from state data.

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catbref 2020-04-14 17:16:41 +01:00
parent 582921aa54
commit fa3760dafc
1 changed files with 18 additions and 0 deletions
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18
Java/src/main/java/org/ciyam/at/MachineState.java
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@ -603,6 +603,24 @@ public class MachineState {
return state;
}
/** Returns data bytes from saved state to allow external analysis, e.g. confirming expected payouts, etc. */
public static byte[] extractDataBytes(AtLoggerFactory loggerFactory, byte[] stateBytes) {
ByteBuffer byteBuffer = ByteBuffer.wrap(stateBytes);
byte[] headerBytes = new byte[HEADER_LENGTH];
byteBuffer.get(headerBytes);
MachineState state = new MachineState(headerBytes, null, loggerFactory);
// Extract data bytes
int dataBytesLength = state.dataByteBuffer.capacity();
byte[] dataBytes = new byte[dataBytesLength];
// More efficient than ByteBuffer.get()
System.arraycopy(stateBytes, byteBuffer.position(), dataBytes, 0, dataBytesLength);
return dataBytes;
}
/** Class for pushing/popping boolean flags onto/from an int */
private static class Flags {
private int flags;