Github user pvillard31 commented on a diff in the pull request: https://github.com/apache/nifi/pull/2587#discussion_r178437593 --- 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 +1,121 @@ +/* + * 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 " + + "XML data, embedded in an enclosing root tag.") +public class XMLReader extends SchemaRegistryService implements RecordReaderFactory { + + public static final PropertyDescriptor VALIDATE_ROOT_TAG = new PropertyDescriptor.Builder() --- End diff -- Could this property supports expression language against incoming flow files? I don't think that's an easy change (and it could introduce a perf hit) but that would allow using the same reader for completely different XML inputs.
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