| /* |
| * 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.stateless.basics; |
| |
| import org.apache.nifi.flowfile.FlowFile; |
| import org.apache.nifi.flow.VersionedPort; |
| import org.apache.nifi.flow.VersionedProcessor; |
| import org.apache.nifi.stateless.StatelessSystemIT; |
| import org.apache.nifi.stateless.VersionedFlowBuilder; |
| import org.apache.nifi.stateless.config.StatelessConfigurationException; |
| import org.apache.nifi.stateless.flow.DataflowTrigger; |
| import org.apache.nifi.stateless.flow.StatelessDataflow; |
| import org.apache.nifi.stateless.flow.TriggerResult; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| public class CreatesFlowFileIT extends StatelessSystemIT { |
| |
| @Test |
| public void testFlowFileCreated() throws IOException, StatelessConfigurationException, InterruptedException { |
| final StatelessDataflow dataflow = loadDataflow(new File("src/test/resources/flows/GenerateFlowFile.json"), Collections.emptyList()); |
| final DataflowTrigger trigger = dataflow.trigger(); |
| final TriggerResult result = trigger.getResult(); |
| assertTrue(result.isSuccessful()); |
| |
| assertEquals(Collections.singleton("Out"), dataflow.getOutputPortNames()); |
| |
| final List<FlowFile> flowFiles = result.getOutputFlowFiles("Out"); |
| assertEquals(1, flowFiles.size()); |
| |
| final FlowFile flowFile = flowFiles.get(0); |
| assertEquals("hello", flowFile.getAttribute("greeting")); |
| |
| final byte[] bytes = result.readContentAsByteArray(flowFile); |
| assertEquals("Hello", new String(bytes, StandardCharsets.UTF_8)); |
| } |
| |
| @Test |
| public void testMultipleFlowFilesCreated() throws IOException, StatelessConfigurationException, InterruptedException { |
| final VersionedFlowBuilder builder = new VersionedFlowBuilder(); |
| final VersionedProcessor generate = builder.createSimpleProcessor("GenerateFlowFile"); |
| generate.setProperties(Collections.singletonMap("Batch Size", "500")); |
| |
| final VersionedProcessor setAttribute = builder.createSimpleProcessor("SetAttribute"); |
| builder.createConnection(generate, setAttribute, "success"); |
| |
| final VersionedPort outPort = builder.createOutputPort("Out"); |
| builder.createConnection(setAttribute, outPort, "success"); |
| |
| final StatelessDataflow dataflow = loadDataflow(builder.getFlowSnapshot()); |
| for (int i=0; i < 10; i++) { |
| final DataflowTrigger trigger = dataflow.trigger(); |
| final TriggerResult result = trigger.getResult(); |
| |
| final List<FlowFile> output = result.getOutputFlowFiles("Out"); |
| assertEquals(500, output.size()); |
| result.acknowledge(); |
| |
| // Wait for the number of FlowFiles queued to be equal to 0. It may take a few milliseconds. |
| while (dataflow.isFlowFileQueued()) { |
| Thread.sleep(5); |
| } |
| } |
| } |
| } |