How to use

AvroUtils$ReaderWriterCompatiblityChecker

in

com.moz.fiji.schema.util

/**
 * Reports the compatibility of a reader/writer schema pair.
 *
 * <p> Memoizes the compatibility results. </p>
 *
 * @param reader Reader schema to test.
 * @param writer Writer schema to test.
 * @return the compatibility of the reader/writer schema pair.
 */
public SchemaCompatibilityType getCompatibility(
  final Schema reader,
  final Schema writer
) {
 LOG.debug("Checking compatibility of reader {} with writer {}", reader, writer);
 final ReaderWriter pair = new ReaderWriter(reader, writer);
 final SchemaCompatibilityType existing = mMemoizeMap.get(pair);
 if (existing != null) {
  if (existing == SchemaCompatibilityType.RECURSION_IN_PROGRESS) {
   // Break the recursion here.
   // schemas are compatible unless proven incompatible:
   return SchemaCompatibilityType.COMPATIBLE;
  }
  return existing;
 }
 // Mark this reader/writer pair as "in progress":
 mMemoizeMap.put(pair, SchemaCompatibilityType.RECURSION_IN_PROGRESS);
 final SchemaCompatibilityType calculated = calculateCompatibility(reader, writer);
 mMemoizeMap.put(pair, calculated);
 return calculated;
}

 return getCompatibility(reader.getElementType(), writer.getElementType());
 return getCompatibility(reader.getValueType(), writer.getValueType());
   if (getCompatibility(readerField.schema(), writerField.schema())
     == SchemaCompatibilityType.INCOMPATIBLE) {
    return SchemaCompatibilityType.INCOMPATIBLE;
  if (getCompatibility(reader, writerBranch) == SchemaCompatibilityType.INCOMPATIBLE) {
   return SchemaCompatibilityType.INCOMPATIBLE;
return getCompatibility(reader, writer.getTypes().get(0));
case UNION: {
 for (final Schema readerBranch : reader.getTypes()) {
  if (getCompatibility(readerBranch, writer) == SchemaCompatibilityType.COMPATIBLE) {
   return SchemaCompatibilityType.COMPATIBLE;

) {
 final SchemaCompatibilityType compatibility =
   new ReaderWriterCompatiblityChecker()
     .getCompatibility(reader, writer);