| /* |
| * 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.beam.runners.dataflow.worker.profiler; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertThat; |
| |
| import java.util.HashMap; |
| import org.apache.beam.runners.dataflow.worker.profiler.ScopedProfiler.ProfileScope; |
| import org.apache.beam.runners.dataflow.worker.profiler.ScopedProfiler.ProfilerWrapper; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.base.Joiner; |
| import org.hamcrest.Matchers; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link ScopedProfiler}. */ |
| @RunWith(JUnit4.class) |
| public class ScopedProfilerTest { |
| |
| @Test |
| public void testProfilerPackage() throws Exception { |
| assertEquals( |
| "The Profiler class must stay in this package since the implementation is via JNI", |
| // Construct the string so IDEs don't "fix it" |
| Joiner.on(".").join("org", "apache", "beam", "runners", "dataflow", "worker", "profiler"), |
| Profiler.class.getPackage().getName()); |
| } |
| |
| @Test |
| public void testNoProfiler() throws Exception { |
| MockProfiler profiler = new MockProfiler(false); |
| ScopedProfiler underTest = new ScopedProfiler(profiler); |
| ProfileScope original = underTest.currentScope(); |
| underTest.registerScope("attribute").activate(); |
| original.activate(); |
| |
| assertThat(profiler.interactions, Matchers.equalTo(1)); |
| } |
| |
| @Test |
| public void testProfilerOneBlock() throws Exception { |
| MockProfiler profiler = new MockProfiler(true); |
| ScopedProfiler underTest = new ScopedProfiler(profiler); |
| |
| ProfileScope original = underTest.currentScope(); |
| underTest.registerScope("attribute").activate(); |
| assertThat( |
| profiler.currentState, Matchers.equalTo(profiler.registeredAttributes.get("attribute"))); |
| original.activate(); |
| |
| assertThat(profiler.currentState, Matchers.equalTo(0)); |
| } |
| |
| @Test |
| public void testProfilerNestedBlocks() throws Exception { |
| MockProfiler profiler = new MockProfiler(true); |
| ScopedProfiler underTest = new ScopedProfiler(profiler); |
| assertThat(profiler.interactions, Matchers.equalTo(1)); |
| |
| ProfileScope original = underTest.currentScope(); |
| ProfileScope block1 = underTest.registerScope("attribute1"); |
| ProfileScope block2 = underTest.registerScope("attribute2"); |
| |
| block1.activate(); |
| assertThat( |
| profiler.currentState, Matchers.equalTo(profiler.registeredAttributes.get("attribute1"))); |
| block2.activate(); |
| assertThat( |
| profiler.currentState, Matchers.equalTo(profiler.registeredAttributes.get("attribute2"))); |
| block1.activate(); |
| assertThat( |
| profiler.currentState, Matchers.equalTo(profiler.registeredAttributes.get("attribute1"))); |
| original.activate(); |
| assertThat(profiler.currentState, Matchers.equalTo(0)); |
| } |
| |
| private static class MockProfiler extends ProfilerWrapper { |
| private int interactions = 0; |
| private final boolean isProfilerPresent; |
| private int currentState; |
| private final HashMap<String, Integer> registeredAttributes = new HashMap<>(); |
| |
| private MockProfiler(boolean isProfilerPresent) { |
| this.isProfilerPresent = isProfilerPresent; |
| this.currentState = 0; |
| } |
| |
| private void interact() { |
| interactions++; |
| if (!isProfilerPresent) { |
| throw new UnsatisfiedLinkError("Profiler is not present"); |
| } |
| } |
| |
| @Override |
| public int getAttribute() { |
| interact(); |
| return currentState; |
| } |
| |
| @Override |
| public int setAttribute(int value) { |
| interact(); |
| |
| // Check that value could have been assigned by this instance. |
| assertThat( |
| "Should only setAttribute with values assigned by this instance", |
| value, |
| Matchers.allOf( |
| Matchers.greaterThanOrEqualTo(0), |
| Matchers.lessThanOrEqualTo(registeredAttributes.size()))); |
| int oldState = currentState; |
| currentState = value; |
| return oldState; |
| } |
| |
| @Override |
| public int registerAttribute(String value) { |
| interact(); |
| |
| Integer attribute = registeredAttributes.get(value); |
| if (attribute == null) { |
| attribute = registeredAttributes.size() + 1; |
| registeredAttributes.put(value, attribute); |
| } |
| return attribute; |
| } |
| } |
| } |