本篇内容主要讲解“stepchain框架有什么作用”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“stepchain框架有什么作用”吧!
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stepchain 通用业务流程流水线处理框架。
类似于Commons Chain和Commons Pipeline这样的Java Pipeline Step Chain用于组织复杂处理流程执行的流行技术。
Feature: 1、支持通用业务job、services子流程无限制拆分。 2、支持业务子流程串行化、业务子流程并行化,可配置化。 3、支持Config业务子流程开启或禁用、配置串行或并行以及并行数的统一配置。 4、支持业务流程以及子流程任意无限嵌套。 5、支持配置中心、缓存、统一数据接口、redis、Es、日志Trace等。 6、支持并行分支,支持条件分支if/else、switch、loop子流程. 7、支持Processor定时调度FixedRate、FixedDelay。 备注:只开源了通用部分(不影响使用),去除了有关框架组件包括:配置中心、缓存中心、数据接口以及业务相关DataMiddle等部分API。
Maven Dependency: Maven(Not Use Spring Boot):com.github.zengfr.project stepchain 0.0.7 Maven(Use Spring Boot): com.github.zengfr.project stepchain-spring-boot-starter 0.0.7 Gradle: compile group: 'com.github.zengfr.project', name: 'stepchain', version: '0.0.7' compile group: 'com.github.zengfr.project', name: 'stepchain-spring-boot-starter', version: '0.0.7'
1、StepChain 的中心思想是什么?如何做到通用的? 答: 1.1、任何业务逻辑处理抽象成1\input输入 2\ processor处理器 3\output输出.中间过程结果产生和组合成dataMiddle。 1.2、任何业务逻辑处理使用多个processor组合执行。 2、StepChain 如何并行和串行执行多个processor? 答: 串行step=pipeline.createStep();step.put(processors);//processors串行执行. 并行step=pipeline.createStep(4);step.put(processors);//processors同时4个并行执行. 3、Stepchain 如何创建processor? 3.1、实现 IProcessor 接口。 3.2、使用IProcessorBuilder: IProcessor createProcessor(Predicate predicate); IProcessor createProcessor(Consumer consumer); IProcessor createProcessor(Function func); 4、StepChain 如何复用和组合processor? 4.1、使用IChainBuilder、IChain: 4.2、使用IProcessorBuilder: IProcessor createProcessor(IProcessor first, IProcessor second); IProcessor createProcessor(IProcessor processor1, IProcessor processor2, IProcessorprocessor3); 5、StepChain 如何按条件复用和组合processor? 答: case1、已有trueProcessor\falseProcessor2个 创建 validator 则按条件执行2则之1. IConditionSelectorProcessor p3 = pipeline.createConditionValidatorProcessor(validator, trueProcessor, falseProcessor); case2、已有processor 创建 validator 创建循环执行体,validator 返回false时终止执行。 IConditionLoopProcessor p2 = pipeline.createConditionLoopProcessor(validator, processor); case3、已有processor创建 switch 逻辑,根据selector返回的key执行某1分支branchProcessor如果返回的key不在分支中 则执行默认key对应的分支branchProcessor。 IConditionSelectorProcessor p1 = pipeline.createConditionSelectorProcessor(selector); p1.setBranch(S key, IProcessor processor); p1setDefaultBranch(S key); case4、已有processor创建 if/else if/else 逻辑,根据validator返回的结果与result对比一致则执行分支branchProcessor,如果没有返回一致的 则执行默认分支branchProcessor。 pipeline.createConditionValidatorSelectorProcessor(); public interface IConditionValidatorSelectorProcessor extends IProcessor { void setBranch(IProcessor validator,Boolean result,IProcessor processor); void setDefaultBranch(IProcessor processor); }
public interface IStep extends IStepProcessor { void put(IStepProcessor processor); void put(IStepProcessor... processorArray); void put(Collection> processors); void put(IProcessor processor); void put(IProcessor... processorArray); void put(IChain chain); void put(IChain... processorArray); void put(Function func); void put(Function... processorArray); } public interface IChain extends IProcessor { IChain next(IProcessor process); IChain next(Function func); } public interface IChainBuilder { IChain createChain(Function func); IChain createChain(IProcessor processor); IChain createChain(IProcessor processor1, IProcessor processor2); } public interface IStepBuilder { IStep createStep(); IStep createStep(int parallelCount); IStep createStep(String parallelCountConfigName); }
StepChainSpringBootTest.java
PipelineTest.java
Demo&Test you can use AbstractProcessor AbstractStepProcessor
import com.github.zengfr.project.stepchain abstract class AbstractProcessor implements Processor{} abstract class AbstractStepProcessor extends AbstractProcessor implements StepProcessor{}
import com.github.zengfr.project.stepchain.Chain; import com.github.zengfr.project.stepchain.Pipeline; import com.github.zengfr.project.stepchain.Step; import com.github.zengfr.project.stepchain.context.ContextBuilder; import com.github.zengfr.project.stepchain.context.UnaryContext; import com.github.zengfr.project.stepchain.test.context.SetProductContext; import com.github.zengfr.project.stepchain.test.context.SetProductDataMiddle; import com.github.zengfr.project.stepchain.test.processor.DiscountProcessor; import com.github.zengfr.project.stepchain.test.processor.FeeProcessor; import com.github.zengfr.project.stepchain.test.processor.IncreaseProcessor; import com.github.zengfr.project.stepchain.test.processor.InitProcessor; import com.github.zengfr.project.stepchain.test.processor.TaxProcessor; public class PipelineTest { public static void testPipeline(IPipeline pipeline) throws Exception { //Demo精简版 只开源了通用部分(不影响使用) SetProductRequest req = new SetProductRequest(); SetProductResponse resp = new SetProductResponse(); SetProductDataMiddle middle = new SetProductDataMiddle(); SetProductContext context = new SetProductContext(req, middle, resp); IStepstep = pipeline.createStep(); step.put(new InitProcessor()); step.put(new TaxProcessor()); step.put(new FeeProcessor()); step.put(new IncreaseProcessor()); step.put(new DiscountProcessor()); step.put((c) -> { c.middle.Price += 10; return true; }); step.process(context); System.out.println(context.middle.Price); } public static void testPipeline2(IPipeline pipeline) throws Exception { Function , Boolean> func = (context) -> { if (context.context == null) context.context = 1; context.context += 1; return true; }; Function , String> func3 = (context) -> { if (context.context == null) context.context = 1; context.context += 1; return JSON.toJSONString(context.context); }; UnaryContext context = pipeline.createContext(12345678); IStep > step = pipeline.createStep(); IStep > step2 = pipeline.createStep(); IChain , Boolean> c2 = pipeline.createChain(func); IChain , String> c3 = pipeline.createChain(func3); Function func4 = null; Function func5 = null; Function func6 = null; IChain c4 = pipeline.createChain(func4); IChain c5 = pipeline.createChain(func5); IChain c6 = pipeline.createChain(func6); IChain , Boolean> c7 = c3.next(c4).next(c5).next(c6); step2.put(c2); step2.put(step); step2.put(func); //step2.put(c7); step2.process(context); System.out.println(context.context); } public static void testPipeline3(IPipeline pipeline) throws Exception { IProcessor selector = null; IProcessor validator = null; IProcessor processor = null; IProcessor first = null; IProcessor second = null; IConditionSelectorProcessor p3 = pipeline.createConditionValidatorProcessor(validator, first, second); IConditionLoopProcessor p2 = pipeline.createConditionLoopProcessor(validator, processor); IConditionSelectorProcessor p1 = pipeline.createConditionSelectorProcessor(selector); }
@RunWith(SpringRunner.class) @SpringBootTest(classes = StepChainTestApplication.class) public class StepChainSpringBootTest { @Autowired protected IPipeline pipeline; @Test public void testPipeline() throws Exception { PipelineTest.testPipeline(pipeline); } @Test public void testPipeline2() throws Exception { PipelineTest.testPipeline2(pipeline); }
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