| /* |
| * 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.ignite.internal.managers; |
| |
| import java.lang.management.MemoryMXBean; |
| import java.lang.management.MemoryUsage; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| import org.apache.ignite.IgniteLogger; |
| import org.apache.ignite.configuration.IgniteConfiguration; |
| import org.apache.ignite.internal.GridKernalContext; |
| import org.apache.ignite.internal.processors.metric.GridMetricManager; |
| import org.apache.ignite.spi.metric.noop.NoopMetricExporterSpi; |
| import org.jetbrains.annotations.NotNull; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mockito.Mockito; |
| import org.mockito.invocation.InvocationOnMock; |
| import org.mockito.stubbing.Answer; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.mockito.Mockito.when; |
| |
| /** |
| * Inconsistent metrics from JVM reported: grid manager handle test |
| * |
| * Test modifies static final field, used only for development |
| */ |
| public class GridManagerMxBeanIllegalArgumentHandleTest { |
| /** Original value of {@link GridMetricManager#mem} to be restored after test */ |
| private Object mxBeanToRestore; |
| |
| /** Mem mx bean field in {@link GridMetricManager#mem}, already set accessible */ |
| private Field memMxBeanField; |
| |
| /** If we succeeded to set final field this flag is true, otherwise test assertions will not be performed */ |
| private boolean correctSetupOfTestPerformed; |
| |
| /** Changes field to always failing mock. */ |
| @Before |
| public void setUp() throws Exception { |
| try { |
| final MemoryMXBean memoryMXBean = createAlwaysFailingMxBean(); |
| memMxBeanField = createAccessibleMemField(); |
| mxBeanToRestore = memMxBeanField.get(null); |
| memMxBeanField.set(null, memoryMXBean); |
| |
| correctSetupOfTestPerformed = memMxBeanField.get(null) == memoryMXBean; |
| } |
| catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| /** MX bean which is always failing to respond with metrics */ |
| @NotNull private MemoryMXBean createAlwaysFailingMxBean() { |
| final Answer<MemoryUsage> failingAnswer = new Answer<MemoryUsage>() { |
| @Override public MemoryUsage answer(InvocationOnMock invocationOnMock) throws Throwable { |
| throw new IllegalArgumentException( |
| "java.lang.IllegalArgumentException: committed = 5274103808 should be < max = 5274095616" |
| ); |
| } |
| }; |
| final MemoryMXBean memoryMXBean = Mockito.mock(MemoryMXBean.class); |
| when(memoryMXBean.getHeapMemoryUsage()).thenAnswer(failingAnswer); |
| when(memoryMXBean.getNonHeapMemoryUsage()).thenAnswer(failingAnswer); |
| return memoryMXBean; |
| } |
| |
| |
| /** Reflections {@link GridMetricManager#mem} field which was made accessible and mutable */ |
| @NotNull private Field createAccessibleMemField() throws NoSuchFieldException, IllegalAccessException { |
| final Field memField = GridMetricManager.class.getDeclaredField("mem"); |
| memField.setAccessible(true); |
| |
| final Field modifiersField = Field.class.getDeclaredField("modifiers"); |
| modifiersField.setAccessible(true); |
| modifiersField.setInt(memField, memField.getModifiers() & ~Modifier.FINAL); |
| return memField; |
| } |
| |
| /** |
| * Restores static field in {@link GridMetricManager#mem} |
| * |
| * @throws Exception if field set failed |
| */ |
| @After |
| public void tearDown() throws Exception { |
| if (correctSetupOfTestPerformed) |
| memMxBeanField.set(null, mxBeanToRestore); |
| } |
| |
| /** Creates minimal disco manager mock, checks illegal state is not propagated */ |
| @Test |
| public void testIllegalStateIsCatch() { |
| final IgniteConfiguration cfg = new IgniteConfiguration(); |
| cfg.setMetricExporterSpi(new NoopMetricExporterSpi()); |
| |
| final IgniteLogger log = Mockito.mock(IgniteLogger.class); |
| |
| final GridKernalContext ctx = Mockito.mock(GridKernalContext.class); |
| when(ctx.config()).thenReturn(cfg); |
| when(ctx.log(Mockito.anyString())).thenReturn(log); |
| when(ctx.log(Mockito.any(Class.class))).thenReturn(log); |
| |
| final GridMetricManager mgr = new GridMetricManager(ctx); |
| final long nHeapMax = mgr.nonHeapMemoryUsage().getMax(); |
| if (correctSetupOfTestPerformed) |
| assertEquals(0, nHeapMax); |
| |
| final long heapMax = mgr.heapMemoryUsage().getMax(); |
| if (correctSetupOfTestPerformed) |
| assertEquals(0, heapMax); |
| } |
| } |