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123 changes: 123 additions & 0 deletions
123
.../java/com/dangdang/ddframe/job/api/listener/AbstractDistributeOnceElasticJobListener.java
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| /** | ||
| * 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> | ||
| */ | ||
|
|
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| package com.dangdang.ddframe.job.api.listener; | ||
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| import com.dangdang.ddframe.job.api.JobExecutionMultipleShardingContext; | ||
| import com.dangdang.ddframe.job.exception.JobTimeoutException; | ||
| import com.dangdang.ddframe.job.internal.env.TimeService; | ||
| import com.dangdang.ddframe.job.internal.guarantee.GuaranteeService; | ||
| import lombok.RequiredArgsConstructor; | ||
| import lombok.Setter; | ||
|
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| /** | ||
| * 在分布式作业中只执行一次的监听器. | ||
| * | ||
| * @author zhangliang | ||
| */ | ||
| @RequiredArgsConstructor | ||
| public abstract class AbstractDistributeOnceElasticJobListener implements ElasticJobListener { | ||
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| private final long startedTimeoutMills; | ||
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| private final Object startedWait = new Object(); | ||
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| private final long completedTimeoutMills; | ||
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| private final Object completedWait = new Object(); | ||
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| @Setter | ||
| private GuaranteeService guaranteeService; | ||
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| private TimeService timeService = new TimeService(); | ||
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| @Override | ||
| public final void beforeJobExecuted(final JobExecutionMultipleShardingContext shardingContext) { | ||
| guaranteeService.registerStart(shardingContext.getShardingItems()); | ||
| if (guaranteeService.isAllStarted()) { | ||
| doBeforeJobExecutedAtLastStarted(shardingContext); | ||
| guaranteeService.clearAllStartedInfo(); | ||
| return; | ||
| } | ||
| long before = timeService.getCurrentMillis(); | ||
| try { | ||
| synchronized (startedWait) { | ||
| startedWait.wait(startedTimeoutMills); | ||
| } | ||
| } catch (final InterruptedException ex) { | ||
| Thread.interrupted(); | ||
| } | ||
| if (timeService.getCurrentMillis() - before >= startedTimeoutMills) { | ||
| guaranteeService.clearAllStartedInfo(); | ||
| throw new JobTimeoutException(startedTimeoutMills); | ||
| } | ||
| } | ||
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| @Override | ||
| public final void afterJobExecuted(final JobExecutionMultipleShardingContext shardingContext) { | ||
| guaranteeService.registerComplete(shardingContext.getShardingItems()); | ||
| if (guaranteeService.isAllCompleted()) { | ||
| doAfterJobExecutedAtLastCompleted(shardingContext); | ||
| guaranteeService.clearAllCompletedInfo(); | ||
| return; | ||
| } | ||
| long before = timeService.getCurrentMillis(); | ||
| try { | ||
| synchronized (completedWait) { | ||
| completedWait.wait(completedTimeoutMills); | ||
| } | ||
| } catch (final InterruptedException ex) { | ||
| Thread.interrupted(); | ||
| } | ||
| if (timeService.getCurrentMillis() - before >= completedTimeoutMills) { | ||
| guaranteeService.clearAllCompletedInfo(); | ||
| throw new JobTimeoutException(completedTimeoutMills); | ||
| } | ||
| } | ||
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| /** | ||
| * 分布式环境中最后一个作业执行前的执行的方法. | ||
| * | ||
| * @param shardingContext 分片上下文 | ||
| */ | ||
| public abstract void doBeforeJobExecutedAtLastStarted(final JobExecutionMultipleShardingContext shardingContext); | ||
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| /** | ||
| * 分布式环境中最后一个作业执行后的执行的方法. | ||
| * | ||
| * @param shardingContext 分片上下文 | ||
| */ | ||
| public abstract void doAfterJobExecutedAtLastCompleted(final JobExecutionMultipleShardingContext shardingContext); | ||
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| /** | ||
| * 通知任务开始. | ||
| */ | ||
| public void notifyWaitingTaskStart() { | ||
| synchronized (startedWait) { | ||
| startedWait.notifyAll(); | ||
| } | ||
| } | ||
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| /** | ||
| * 通知任务结束. | ||
| */ | ||
| public void notifyWaitingTaskComplete() { | ||
| synchronized (completedWait) { | ||
| completedWait.notifyAll(); | ||
| } | ||
| } | ||
| } |
42 changes: 42 additions & 0 deletions
42
elastic-job-core/src/main/java/com/dangdang/ddframe/job/api/listener/ElasticJobListener.java
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| /** | ||
| * 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> | ||
| */ | ||
|
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| package com.dangdang.ddframe.job.api.listener; | ||
|
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| import com.dangdang.ddframe.job.api.JobExecutionMultipleShardingContext; | ||
|
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| /** | ||
| * 弹性化分布式作业监听器接口. | ||
| * | ||
| * @author zhangliang | ||
| */ | ||
| public interface ElasticJobListener { | ||
|
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| /** | ||
| * 作业执行前的执行的方法. | ||
| * | ||
| * @param shardingContext 分片上下文 | ||
| */ | ||
| void beforeJobExecuted(final JobExecutionMultipleShardingContext shardingContext); | ||
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| /** | ||
| * 作业执行后的执行的方法. | ||
| * | ||
| * @param shardingContext 分片上下文 | ||
| */ | ||
| void afterJobExecuted(final JobExecutionMultipleShardingContext shardingContext); | ||
| } |
35 changes: 35 additions & 0 deletions
35
elastic-job-core/src/main/java/com/dangdang/ddframe/job/exception/JobTimeoutException.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| /** | ||
| * 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> | ||
| */ | ||
|
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| package com.dangdang.ddframe.job.exception; | ||
|
|
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| /** | ||
| * 作业超时抛出的异常. | ||
| * | ||
| * @author zhangliang | ||
| */ | ||
| public final class JobTimeoutException extends JobException { | ||
|
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| /** | ||
| * 作业超时抛出的异常. | ||
| * | ||
| * @param timeoutMills 超时毫秒数 | ||
| */ | ||
| public JobTimeoutException(final long timeoutMills) { | ||
| super("Job timeout. timeout mills is %s.", timeoutMills); | ||
| } | ||
| } |
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35 changes: 35 additions & 0 deletions
35
elastic-job-core/src/main/java/com/dangdang/ddframe/job/internal/env/TimeService.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| /** | ||
| * 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> | ||
| */ | ||
|
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| package com.dangdang.ddframe.job.internal.env; | ||
|
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| /** | ||
| * 获取时间的服务. | ||
| * | ||
| * @author zhangliang | ||
| */ | ||
| public class TimeService { | ||
|
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| /** | ||
| * 获取当前时间的毫秒数. | ||
| * | ||
| * @return 当前时间的毫秒数 | ||
| */ | ||
| public long getCurrentMillis() { | ||
| return System.currentTimeMillis(); | ||
| } | ||
| } |
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