Github user markap14 commented on a diff in the pull request:

    https://github.com/apache/nifi/pull/2587#discussion_r179820952
  
    --- Diff: 
nifi-nar-bundles/nifi-standard-services/nifi-record-serialization-services-bundle/nifi-record-serialization-services/src/main/java/org/apache/nifi/xml/XMLReader.java
 ---
    @@ -0,0 +1,133 @@
    +/*
    + * 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.xml;
    +
    +import org.apache.nifi.annotation.documentation.CapabilityDescription;
    +import org.apache.nifi.annotation.documentation.Tags;
    +import org.apache.nifi.annotation.lifecycle.OnEnabled;
    +import org.apache.nifi.components.PropertyDescriptor;
    +import org.apache.nifi.controller.ConfigurationContext;
    +import org.apache.nifi.logging.ComponentLog;
    +import org.apache.nifi.processor.util.StandardValidators;
    +import org.apache.nifi.schema.access.SchemaNotFoundException;
    +import org.apache.nifi.serialization.DateTimeUtils;
    +import org.apache.nifi.serialization.MalformedRecordException;
    +import org.apache.nifi.serialization.RecordReader;
    +import org.apache.nifi.serialization.RecordReaderFactory;
    +import org.apache.nifi.serialization.SchemaRegistryService;
    +import org.apache.nifi.serialization.record.RecordSchema;
    +
    +import java.io.IOException;
    +import java.io.InputStream;
    +import java.util.ArrayList;
    +import java.util.List;
    +import java.util.Map;
    +
    +@Tags({"xml", "record", "reader", "parser"})
    +@CapabilityDescription("Reads XML content and creates Record objects. 
Records are expected in the second level of " +
    --- End diff --
    
    I think the requirement that XML data must be wrapped in some sort of 
wrapper is going to be problematic. While this will be a fairly common case, so 
that multiple XML elements can be combined into a single FlowFile, it is also 
going to be common (probably more common) that each XML element will be its own 
standalone Record. This is especially important if this Reader is used for 
something like ListenTCPRecord or ConsumeKafkaRecord, where the data is 
received from elsewhere so no processor has a chance to wrap the content prior 
to using the XML Reader. I think we need to support both ignoring the 
outer-most element as well as incorporating the outer-most element.


---

Reply via email to