| /* |
| * 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.components.PropertyDescriptor; |
| import org.apache.nifi.flowfile.FlowFile; |
| import org.apache.nifi.processor.AbstractProcessor; |
| import org.apache.nifi.processor.ProcessContext; |
| import org.apache.nifi.processor.ProcessSession; |
| import org.apache.nifi.processor.Relationship; |
| import org.apache.nifi.processor.exception.ProcessException; |
| import org.apache.nifi.processor.util.StandardValidators; |
| import org.apache.nifi.serialization.RecordSetWriter; |
| import org.apache.nifi.serialization.RecordSetWriterFactory; |
| import org.apache.nifi.serialization.SimpleRecordSchema; |
| import org.apache.nifi.serialization.record.ListRecordSet; |
| import org.apache.nifi.serialization.record.MapRecord; |
| import org.apache.nifi.serialization.record.Record; |
| import org.apache.nifi.serialization.record.RecordSchema; |
| import org.apache.nifi.serialization.record.RecordSet; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| public class TestXMLRecordSetWriterProcessor extends AbstractProcessor { |
| |
| static final PropertyDescriptor XML_WRITER = new PropertyDescriptor.Builder() |
| .name("xml_writer") |
| .identifiesControllerService(XMLRecordSetWriter.class) |
| .required(true) |
| .build(); |
| |
| static final PropertyDescriptor MULTIPLE_RECORDS = new PropertyDescriptor.Builder() |
| .name("multiple_records") |
| .allowableValues("true", "false") |
| .defaultValue("true") |
| .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) |
| .build(); |
| |
| public static final Relationship SUCCESS = new Relationship.Builder().name("success").description("success").build(); |
| |
| @Override |
| public void onTrigger(ProcessContext context, ProcessSession session) throws ProcessException { |
| FlowFile flowFile = session.get(); |
| |
| final RecordSetWriterFactory writerFactory = context.getProperty(XML_WRITER).asControllerService(RecordSetWriterFactory.class); |
| final FlowFile flowFileRef = flowFile; |
| flowFile = session.write(flowFile, out -> { |
| try { |
| |
| final RecordSchema schema = writerFactory.getSchema(null, null); |
| |
| boolean multipleRecords = Boolean.parseBoolean(context.getProperty(MULTIPLE_RECORDS).getValue()); |
| RecordSet recordSet = getRecordSet(multipleRecords); |
| |
| final RecordSetWriter writer = writerFactory.createWriter(getLogger(), schema, out, flowFileRef); |
| |
| |
| writer.write(recordSet); |
| writer.flush(); |
| |
| |
| } catch (Exception e) { |
| throw new ProcessException(e.getMessage()); |
| } |
| |
| }); |
| session.transfer(flowFile, SUCCESS); |
| } |
| |
| @Override |
| protected List<PropertyDescriptor> getSupportedPropertyDescriptors() { |
| return new ArrayList<PropertyDescriptor>() {{ add(XML_WRITER); add(MULTIPLE_RECORDS); }}; |
| } |
| |
| @Override |
| public Set<Relationship> getRelationships() { |
| return new HashSet<Relationship>() {{ add(SUCCESS); }}; |
| } |
| |
| protected static RecordSet getRecordSet(boolean multipleRecords) { |
| Object[] arrayVals = {1, null, 3}; |
| |
| Map<String,Object> recordFields = new HashMap<>(); |
| recordFields.put("name1", "val1"); |
| recordFields.put("name2", null); |
| recordFields.put("array_field", arrayVals); |
| |
| RecordSchema emptySchema = new SimpleRecordSchema(Collections.emptyList()); |
| |
| List<Record> records = new ArrayList<>(); |
| records.add(new MapRecord(emptySchema, recordFields)); |
| |
| if (multipleRecords) { |
| records.add(new MapRecord(emptySchema, recordFields)); |
| } |
| |
| return new ListRecordSet(emptySchema, records); |
| } |
| |
| |
| |
| } |