| /* |
| * 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.util; |
| |
| 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.Processor; |
| import org.apache.nifi.processor.Relationship; |
| import org.apache.nifi.processor.exception.FlowFileHandlingException; |
| import org.apache.nifi.processor.exception.ProcessException; |
| import org.apache.nifi.state.MockStateManager; |
| import org.apache.nifi.stream.io.StreamUtils; |
| import org.junit.jupiter.api.Test; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Collections; |
| import java.util.Set; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertFalse; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| import static org.junit.jupiter.api.Assertions.fail; |
| |
| public class TestMockProcessSession { |
| |
| @Test |
| public void testReadWithoutCloseThrowsExceptionOnCommit() throws IOException { |
| final Processor processor = new PoorlyBehavedProcessor(); |
| final MockProcessSession session = new MockProcessSession(new SharedSessionState(processor, new AtomicLong(0L)), processor, true, new MockStateManager(processor), true); |
| FlowFile flowFile = session.createFlowFile("hello, world".getBytes()); |
| final InputStream in = session.read(flowFile); |
| final byte[] buffer = new byte[12]; |
| StreamUtils.fillBuffer(in, buffer); |
| |
| assertEquals("hello, world", new String(buffer)); |
| |
| try { |
| session.commit(); |
| fail("Was able to commit session without closing InputStream"); |
| } catch (final FlowFileHandlingException | IllegalStateException e) { |
| System.out.println(e.toString()); |
| } |
| } |
| |
| @Test |
| public void testReadWithoutCloseThrowsExceptionOnCommitAsync() throws IOException { |
| final Processor processor = new PoorlyBehavedProcessor(); |
| final MockProcessSession session = new MockProcessSession(new SharedSessionState(processor, new AtomicLong(0L)), processor, new MockStateManager(processor)); |
| FlowFile flowFile = session.createFlowFile("hello, world".getBytes()); |
| final InputStream in = session.read(flowFile); |
| final byte[] buffer = new byte[12]; |
| StreamUtils.fillBuffer(in, buffer); |
| |
| assertEquals("hello, world", new String(buffer)); |
| |
| try { |
| session.commitAsync(); |
| fail("Was able to commit session without closing InputStream"); |
| } catch (final FlowFileHandlingException | IllegalStateException e) { |
| System.out.println(e.toString()); |
| } |
| } |
| |
| @Test |
| public void testTransferUnknownRelationship() { |
| final Processor processor = new PoorlyBehavedProcessor(); |
| final MockProcessSession session = new MockProcessSession(new SharedSessionState(processor, new AtomicLong(0L)), processor, new MockStateManager(processor)); |
| FlowFile ff1 = session.createFlowFile("hello, world".getBytes()); |
| final Relationship fakeRel = new Relationship.Builder().name("FAKE").build(); |
| try { |
| session.transfer(ff1, fakeRel); |
| fail("Should have thrown IllegalArgumentException"); |
| } catch (final IllegalArgumentException ie) { |
| |
| } |
| try { |
| session.transfer(Collections.singleton(ff1), fakeRel); |
| fail("Should have thrown IllegalArgumentException"); |
| } catch (final IllegalArgumentException ie) { |
| |
| } |
| |
| } |
| |
| @Test |
| public void testRejectTransferNewlyCreatedFileToSelf() { |
| final Processor processor = new PoorlyBehavedProcessor(); |
| final MockProcessSession session = new MockProcessSession(new SharedSessionState(processor, new AtomicLong(0L)), processor, new MockStateManager(processor)); |
| final FlowFile ff1 = session.createFlowFile("hello, world".getBytes()); |
| // this should throw an exception because we shouldn't allow a newly created flowfile to get routed back to self |
| assertThrows(IllegalArgumentException.class, () -> session.transfer(ff1)); |
| } |
| |
| @Test |
| public void testKeepPenalizedStatusAfterPuttingAttribute(){ |
| final Processor processor = new PoorlyBehavedProcessor(); |
| final MockProcessSession session = new MockProcessSession(new SharedSessionState(processor, new AtomicLong(0L)), processor, new MockStateManager(processor)); |
| FlowFile ff1 = session.createFlowFile("hello, world".getBytes()); |
| ff1 = session.penalize(ff1); |
| assertTrue(ff1.isPenalized()); |
| ff1 = session.putAttribute(ff1, "hello", "world"); |
| // adding attribute to flow file should not override the original penalized status |
| assertTrue(ff1.isPenalized()); |
| } |
| |
| @Test |
| public void testUnpenalizeFlowFile() { |
| final Processor processor = new PoorlyBehavedProcessor(); |
| final MockProcessSession session = new MockProcessSession(new SharedSessionState(processor, new AtomicLong(0L)), processor, new MockStateManager(processor)); |
| FlowFile ff1 = session.createFlowFile("hello, world".getBytes()); |
| ff1 = session.penalize(ff1); |
| assertTrue(ff1.isPenalized()); |
| ff1 = session.unpenalize(ff1); |
| assertFalse(ff1.isPenalized()); |
| } |
| |
| protected static class PoorlyBehavedProcessor extends AbstractProcessor { |
| |
| private static final Relationship REL_FAILURE = new Relationship.Builder() |
| .name("failure") |
| .build(); |
| |
| private final Set<Relationship> relationships = Collections.singleton(REL_FAILURE); |
| |
| @Override |
| public Set<Relationship> getRelationships() { |
| return relationships; |
| } |
| |
| @Override |
| public void onTrigger(final ProcessContext ctx, final ProcessSession session) throws ProcessException { |
| final FlowFile file = session.create(); |
| session.penalize(file); |
| session.transfer(file, REL_FAILURE); |
| } |
| |
| } |
| } |