public SqlSchema getSqlSchema() {
      String schemaStr = getSchema(systemStream);
      Schema schema = Schema.parse(schemaStr);
      AvroTypeFactoryImpl avroTypeFactory = new AvroTypeFactoryImpl();
      return avroTypeFactory.createType(schema);
    }
Avro Schema Resolver that uses static config to return a schema for a SystemStream.
Schemas are configured using the config of format {systemName}.{streamName}.schema.
samza-sql/src/main/java/org/apache/samza/sql/avro/ConfigBasedAvroRelSchemaProviderFactory.java