/*
* Copyright 1999-2015 dangdang.com.
* <p>
* Licensed 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.
* </p>
*/
package com.dangdang.ddframe.job.lite.internal.failover;
import com.dangdang.ddframe.job.lite.api.strategy.JobInstance;
import com.dangdang.ddframe.job.lite.internal.failover.FailoverService.FailoverLeaderExecutionCallback;
import com.dangdang.ddframe.job.lite.internal.schedule.JobRegistry;
import com.dangdang.ddframe.job.lite.internal.schedule.JobScheduleController;
import com.dangdang.ddframe.job.lite.internal.sharding.ShardingService;
import com.dangdang.ddframe.job.lite.internal.storage.JobNodeStorage;
import com.dangdang.ddframe.job.reg.base.CoordinatorRegistryCenter;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentMatchers;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.unitils.util.ReflectionUtils;
import java.util.Arrays;
import java.util.Collections;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public final class FailoverServiceTest {
@Mock
private CoordinatorRegistryCenter regCenter;
@Mock
private JobScheduleController jobScheduleController;
@Mock
private JobNodeStorage jobNodeStorage;
@Mock
private ShardingService shardingService;
private final FailoverService failoverService = new FailoverService(null, "test_job");
@Before
public void setUp() throws NoSuchFieldException {
MockitoAnnotations.initMocks(this);
ReflectionUtils.setFieldValue(failoverService, "jobNodeStorage", jobNodeStorage);
ReflectionUtils.setFieldValue(failoverService, "shardingService", shardingService);
ReflectionUtils.setFieldValue(failoverService, "jobName", "test_job");
JobRegistry.getInstance().addJobInstance("test_job", new JobInstance("127.0.0.1@-@0"));
}
@Test
public void assertSetCrashedFailoverFlagWhenItemIsNotAssigned() {
when(jobNodeStorage.isJobNodeExisted("sharding/0/failover")).thenReturn(true);
failoverService.setCrashedFailoverFlag(0);
verify(jobNodeStorage).isJobNodeExisted("sharding/0/failover");
verify(jobNodeStorage, times(0)).createJobNodeIfNeeded("leader/failover/items/0");
}
@Test
public void assertSetCrashedFailoverFlagWhenItemIsAssigned() {
when(jobNodeStorage.isJobNodeExisted("sharding/0/failover")).thenReturn(false);
failoverService.setCrashedFailoverFlag(0);
verify(jobNodeStorage).isJobNodeExisted("sharding/0/failover");
verify(jobNodeStorage).createJobNodeIfNeeded("leader/failover/items/0");
}
@Test
public void assertFailoverIfUnnecessaryWhenItemsRootNodeNotExisted() {
when(jobNodeStorage.isJobNodeExisted("leader/failover/items")).thenReturn(false);
failoverService.failoverIfNecessary();
verify(jobNodeStorage).isJobNodeExisted("leader/failover/items");
verify(jobNodeStorage, times(0)).executeInLeader(eq("leader/failover/latch"), ArgumentMatchers.<FailoverLeaderExecutionCallback>any());
}
@Test
public void assertFailoverIfUnnecessaryWhenItemsRootNodeIsEmpty() {
when(jobNodeStorage.isJobNodeExisted("leader/failover/items")).thenReturn(true);
when(jobNodeStorage.getJobNodeChildrenKeys("leader/failover/items")).thenReturn(Collections.<String>emptyList());
failoverService.failoverIfNecessary();
verify(jobNodeStorage).isJobNodeExisted("leader/failover/items");
verify(jobNodeStorage).getJobNodeChildrenKeys("leader/failover/items");
verify(jobNodeStorage, times(0)).executeInLeader(eq("leader/failover/latch"), ArgumentMatchers.<FailoverLeaderExecutionCallback>any());
}
@Test
public void assertFailoverIfUnnecessaryWhenServerIsNotReady() {
JobRegistry.getInstance().setJobRunning("test_job", true);
when(jobNodeStorage.isJobNodeExisted("leader/failover/items")).thenReturn(true);
when(jobNodeStorage.getJobNodeChildrenKeys("leader/failover/items")).thenReturn(Arrays.asList("0", "1", "2"));
failoverService.failoverIfNecessary();
verify(jobNodeStorage).isJobNodeExisted("leader/failover/items");
verify(jobNodeStorage).getJobNodeChildrenKeys("leader/failover/items");
verify(jobNodeStorage, times(0)).executeInLeader(eq("leader/failover/latch"), ArgumentMatchers.<FailoverLeaderExecutionCallback>any());
}
@Test
public void assertFailoverIfNecessary() {
JobRegistry.getInstance().setJobRunning("test_job", false);
when(jobNodeStorage.isJobNodeExisted("leader/failover/items")).thenReturn(true);
when(jobNodeStorage.getJobNodeChildrenKeys("leader/failover/items")).thenReturn(Arrays.asList("0", "1", "2"));
failoverService.failoverIfNecessary();
verify(jobNodeStorage).isJobNodeExisted("leader/failover/items");
verify(jobNodeStorage).getJobNodeChildrenKeys("leader/failover/items");
verify(jobNodeStorage).executeInLeader(eq("leader/failover/latch"), ArgumentMatchers.<FailoverLeaderExecutionCallback>any());
JobRegistry.getInstance().setJobRunning("test_job", false);
}
@Test
public void assertFailoverLeaderExecutionCallbackIfNotNecessary() {
JobRegistry.getInstance().registerJob("test_job", jobScheduleController, regCenter);
JobRegistry.getInstance().setJobRunning("test_job", false);
when(jobNodeStorage.isJobNodeExisted("leader/failover/items")).thenReturn(false);
failoverService.new FailoverLeaderExecutionCallback().execute();
verify(jobNodeStorage).isJobNodeExisted("leader/failover/items");
verify(jobNodeStorage, times(0)).getJobNodeChildrenKeys("leader/failover/items");
JobRegistry.getInstance().shutdown("test_job");
}
@Test
public void assertFailoverLeaderExecutionCallbackIfNecessary() {
JobRegistry.getInstance().setJobRunning("test_job", false);
when(jobNodeStorage.isJobNodeExisted("leader/failover/items")).thenReturn(true);
when(jobNodeStorage.getJobNodeChildrenKeys("leader/failover/items")).thenReturn(Arrays.asList("0", "1", "2"));
JobRegistry.getInstance().registerJob("test_job", jobScheduleController, regCenter);
failoverService.new FailoverLeaderExecutionCallback().execute();
verify(jobNodeStorage).isJobNodeExisted("leader/failover/items");
verify(jobNodeStorage, times(2)).getJobNodeChildrenKeys("leader/failover/items");
verify(jobNodeStorage).fillEphemeralJobNode("sharding/0/failover", "127.0.0.1@-@0");
verify(jobNodeStorage).removeJobNodeIfExisted("leader/failover/items/0");
verify(jobScheduleController).triggerJob();
JobRegistry.getInstance().setJobRunning("test_job", false);
JobRegistry.getInstance().shutdown("test_job");
}
@Test
public void assertUpdateFailoverComplete() {
failoverService.updateFailoverComplete(Arrays.asList(0, 1));
verify(jobNodeStorage).removeJobNodeIfExisted("sharding/0/failover");
verify(jobNodeStorage).removeJobNodeIfExisted("sharding/1/failover");
}
@Test
public void assertGetFailoverItems() {
JobRegistry.getInstance().registerJob("test_job", jobScheduleController, regCenter);
when(jobNodeStorage.getJobNodeChildrenKeys("sharding")).thenReturn(Arrays.asList("0", "1", "2"));
when(jobNodeStorage.isJobNodeExisted("sharding/0/failover")).thenReturn(true);
when(jobNodeStorage.isJobNodeExisted("sharding/1/failover")).thenReturn(true);
when(jobNodeStorage.isJobNodeExisted("sharding/2/failover")).thenReturn(false);
when(jobNodeStorage.getJobNodeDataDirectly("sharding/0/failover")).thenReturn("127.0.0.1@-@0");
when(jobNodeStorage.getJobNodeDataDirectly("sharding/1/failover")).thenReturn("127.0.0.1@-@1");
assertThat(failoverService.getFailoverItems("127.0.0.1@-@1"), is(Collections.singletonList(1)));
verify(jobNodeStorage).getJobNodeChildrenKeys("sharding");
verify(jobNodeStorage).isJobNodeExisted("sharding/0/failover");
verify(jobNodeStorage).isJobNodeExisted("sharding/1/failover");
verify(jobNodeStorage).getJobNodeDataDirectly("sharding/0/failover");
verify(jobNodeStorage).getJobNodeDataDirectly("sharding/1/failover");
JobRegistry.getInstance().shutdown("test_job");
}
@Test
public void assertGetLocalFailoverItemsIfShutdown() {
assertThat(failoverService.getLocalFailoverItems(), is(Collections.<Integer>emptyList()));
verify(jobNodeStorage, times(0)).getJobNodeChildrenKeys("sharding");
}
@Test
public void assertGetLocalFailoverItems() {
JobRegistry.getInstance().registerJob("test_job", jobScheduleController, regCenter);
when(jobNodeStorage.getJobNodeChildrenKeys("sharding")).thenReturn(Arrays.asList("0", "1", "2"));
when(jobNodeStorage.isJobNodeExisted("sharding/0/failover")).thenReturn(true);
when(jobNodeStorage.isJobNodeExisted("sharding/1/failover")).thenReturn(true);
when(jobNodeStorage.isJobNodeExisted("sharding/2/failover")).thenReturn(false);
when(jobNodeStorage.getJobNodeDataDirectly("sharding/0/failover")).thenReturn("127.0.0.1@-@0");
when(jobNodeStorage.getJobNodeDataDirectly("sharding/1/failover")).thenReturn("127.0.0.1@-@1");
assertThat(failoverService.getLocalFailoverItems(), is(Collections.singletonList(0)));
verify(jobNodeStorage).getJobNodeChildrenKeys("sharding");
verify(jobNodeStorage).isJobNodeExisted("sharding/0/failover");
verify(jobNodeStorage).isJobNodeExisted("sharding/1/failover");
verify(jobNodeStorage).getJobNodeDataDirectly("sharding/0/failover");
verify(jobNodeStorage).getJobNodeDataDirectly("sharding/1/failover");
JobRegistry.getInstance().shutdown("test_job");
}
@Test
public void assertGetLocalTakeOffItems() {
when(shardingService.getLocalShardingItems()).thenReturn(Arrays.asList(0, 1, 2));
when(jobNodeStorage.isJobNodeExisted("sharding/0/failover")).thenReturn(true);
when(jobNodeStorage.isJobNodeExisted("sharding/1/failover")).thenReturn(true);
when(jobNodeStorage.isJobNodeExisted("sharding/2/failover")).thenReturn(false);
assertThat(failoverService.getLocalTakeOffItems(), is(Arrays.asList(0, 1)));
verify(shardingService).getLocalShardingItems();
verify(jobNodeStorage).isJobNodeExisted("sharding/0/failover");
verify(jobNodeStorage).isJobNodeExisted("sharding/1/failover");
verify(jobNodeStorage).isJobNodeExisted("sharding/2/failover");
}
@Test
public void assertRemoveFailoverInfo() {
when(jobNodeStorage.getJobNodeChildrenKeys("sharding")).thenReturn(Arrays.asList("0", "1", "2"));
failoverService.removeFailoverInfo();
verify(jobNodeStorage).getJobNodeChildrenKeys("sharding");
verify(jobNodeStorage).removeJobNodeIfExisted("sharding/0/failover");
verify(jobNodeStorage).removeJobNodeIfExisted("sharding/1/failover");
verify(jobNodeStorage).removeJobNodeIfExisted("sharding/2/failover");
}
}