joewitt commented on code in PR #7830: URL: https://github.com/apache/nifi/pull/7830#discussion_r1343460122
########## nifi-nar-bundles/nifi-opentelemetry-bundle/nifi-opentelemetry-processors/src/main/java/org/apache/nifi/processors/opentelemetry/encoding/ByteStringFieldDeserializer.java: ########## @@ -0,0 +1,95 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.nifi.processors.opentelemetry.encoding; + +import com.fasterxml.jackson.core.JsonParser; +import com.fasterxml.jackson.databind.DeserializationContext; +import com.google.protobuf.ByteString; +import com.google.protobuf.Descriptors; +import com.google.protobuf.Message; +import com.hubspot.jackson.datatype.protobuf.ProtobufJacksonConfig; +import com.hubspot.jackson.datatype.protobuf.builtin.deserializers.MessageDeserializer; +import org.apache.commons.codec.DecoderException; +import org.apache.commons.codec.binary.Hex; + +import java.io.IOException; +import java.util.Arrays; +import java.util.Set; +import java.util.stream.Collectors; + +/** + * ByteString Field Deserializer supporting conversion from hexadecimal to ByteString for selected fields + * + * @param <T> Message Type + * @param <V> Message Builder Type + */ +public class ByteStringFieldDeserializer<T extends Message, V extends Message.Builder> extends MessageDeserializer<T, V> { + private static final Set<String> HEXADECIMAL_BYTE_STRING_FIELDS = Arrays.stream(HexadecimalByteStringField.values()) + .map(HexadecimalByteStringField::getField) + .collect(Collectors.toSet()); + + /** + * Deserializer constructor with Message Type class to be deserialized + * + * @param messageType Message Type class to be deserialized + * @param config Jackson Configuration for Protobuf + */ + public ByteStringFieldDeserializer(final Class<T> messageType, final ProtobufJacksonConfig config) { + super(messageType, config); + } + + /** + * Read value from JSON Parser and decode hexadecimal ByteString fields when found + * + * @param builder Protobuf Message Builder + * @param field Message Field Deescriptor Review Comment: little typo 'dee' -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@nifi.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
