| /* |
| * 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.servicecomb.pack.omega.transaction; |
| |
| import static com.seanyinx.github.unit.scaffolding.AssertUtils.expectFailing; |
| import static org.hamcrest.Matchers.anyOf; |
| import static org.hamcrest.Matchers.containsString; |
| import static org.hamcrest.core.Is.is; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.fail; |
| import static org.mockito.Mockito.any; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.UUID; |
| |
| import javax.transaction.InvalidTransactionException; |
| |
| import org.apache.servicecomb.pack.common.EventType; |
| import org.apache.servicecomb.pack.contract.grpc.ServerMeta; |
| import org.apache.servicecomb.pack.omega.context.IdGenerator; |
| import org.apache.servicecomb.pack.omega.context.OmegaContext; |
| import org.apache.servicecomb.pack.omega.transaction.annotations.Compensable; |
| import org.aspectj.lang.ProceedingJoinPoint; |
| import org.aspectj.lang.reflect.MethodSignature; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class ForwardRecoveryTest { |
| private final List<TxEvent> messages = new ArrayList<>(); |
| |
| private final String globalTxId = UUID.randomUUID().toString(); |
| |
| private final String localTxId = UUID.randomUUID().toString(); |
| |
| private final String parentTxId = UUID.randomUUID().toString(); |
| |
| private final String newLocalTxId = UUID.randomUUID().toString(); |
| |
| private final RuntimeException oops = new RuntimeException("oops"); |
| |
| @SuppressWarnings("unchecked") |
| private final IdGenerator<String> idGenerator = mock(IdGenerator.class); |
| |
| private final OmegaContext omegaContext = new OmegaContext(idGenerator); |
| |
| private final ProceedingJoinPoint joinPoint = mock(ProceedingJoinPoint.class); |
| |
| private final MethodSignature methodSignature = mock(MethodSignature.class); |
| |
| private final Compensable compensable = mock(Compensable.class); |
| |
| private final SagaMessageSender sender = new SagaMessageSender() { |
| @Override |
| public void onConnected() { |
| |
| } |
| |
| @Override |
| public void onDisconnected() { |
| |
| } |
| |
| @Override |
| public ServerMeta onGetServerMeta() { |
| return null; |
| } |
| |
| @Override |
| public void close() { |
| |
| } |
| |
| @Override |
| public String target() { |
| return "UNKNOWN"; |
| } |
| |
| @Override |
| public AlphaResponse send(TxEvent event) { |
| messages.add(event); |
| return new AlphaResponse(false); |
| } |
| }; |
| |
| private final CompensableInterceptor interceptor = new CompensableInterceptor(omegaContext, sender); |
| |
| private final RecoveryPolicy recoveryPolicy = new ForwardRecovery(); |
| |
| private volatile OmegaException exception; |
| |
| @Before |
| public void setUp() throws Exception { |
| when(idGenerator.nextId()).thenReturn(newLocalTxId); |
| when(joinPoint.getSignature()).thenReturn(methodSignature); |
| when(joinPoint.getTarget()).thenReturn(this); |
| |
| when(methodSignature.getMethod()).thenReturn(this.getClass().getDeclaredMethod("doNothing")); |
| when(compensable.compensationMethod()).thenReturn("doNothing"); |
| when(compensable.forwardRetries()).thenReturn(0); |
| |
| omegaContext.setGlobalTxId(globalTxId); |
| omegaContext.setLocalTxId(localTxId); |
| } |
| |
| @Test |
| public void forwardExceptionWhenGlobalTxAborted() { |
| SagaMessageSender sender = mock(SagaMessageSender.class); |
| when(sender.send(any(TxEvent.class))).thenReturn(new AlphaResponse(true)); |
| |
| CompensableInterceptor interceptor = new CompensableInterceptor(omegaContext, sender); |
| |
| try { |
| recoveryPolicy.apply(joinPoint, compensable, interceptor, omegaContext, parentTxId, 0); |
| expectFailing(InvalidTransactionException.class); |
| } catch (InvalidTransactionException e) { |
| assertThat(e.getMessage().contains("Abort sub transaction"), is(true)); |
| } catch (Throwable throwable) { |
| fail("unexpected exception throw: " + throwable); |
| } |
| |
| verify(sender, times(1)).send(any(TxEvent.class)); |
| } |
| |
| @Test |
| public void throwExceptionWhenRetryReachesMaximum() throws Throwable { |
| when(compensable.forwardRetries()).thenReturn(2); |
| when(joinPoint.proceed()).thenThrow(oops); |
| |
| try { |
| recoveryPolicy.apply(joinPoint, compensable, interceptor, omegaContext, parentTxId, 2); |
| expectFailing(RuntimeException.class); |
| } catch (RuntimeException e) { |
| //Sometimes thrown interrupt exception with CI |
| assertThat(e.getMessage(), anyOf(containsString("oops"), |
| containsString("Failed to handle tx because it is interrupted"))); |
| } |
| |
| assertThat(messages.size(), is(3)); |
| assertThat(messages.get(0).type(), is(EventType.TxStartedEvent)); |
| assertThat(messages.get(1).type(), is(EventType.TxStartedEvent)); |
| assertThat(messages.get(2).type(), is(EventType.TxAbortedEvent)); |
| } |
| |
| @Test |
| public void keepRetryingTillInterrupted() throws Throwable { |
| when(compensable.forwardRetries()).thenReturn(-1); |
| when(compensable.retryDelayInMilliseconds()).thenReturn(1000); |
| when(joinPoint.proceed()).thenThrow(oops); |
| |
| Thread thread = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| recoveryPolicy.apply(joinPoint, compensable, interceptor, omegaContext, parentTxId, -1); |
| expectFailing(OmegaException.class); |
| } catch (OmegaException e) { |
| exception = e; |
| } catch (Throwable throwable) { |
| fail("unexpected exception throw: " + throwable); |
| } |
| } |
| }); |
| thread.start(); |
| |
| thread.interrupt(); |
| thread.join(); |
| |
| assertThat(exception.getMessage().contains("Failed to handle tx because it is interrupted"), is(true)); |
| } |
| |
| private String doNothing() { |
| return "doNothing"; |
| } |
| } |