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feature #I6MPYF 增加CATCH语法表达式

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everywhere.z
2023-03-13 18:32:14 +08:00
parent d9ac06f832
commit d918e1c64b
10 changed files with 264 additions and 0 deletions
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26
liteflow-core/src/main/java/com/yomahub/liteflow/builder/el/operator/CatchOperator.java Normal file
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package com.yomahub.liteflow.builder.el.operator;
import com.yomahub.liteflow.builder.el.operator.base.BaseOperator;
import com.yomahub.liteflow.builder.el.operator.base.OperatorHelper;
import com.yomahub.liteflow.flow.element.Executable;
import com.yomahub.liteflow.flow.element.condition.CatchCondition;
/**
* EL规则中的CATCH的操作符
* 用法：CATCH...DO...
* @author Bryan.Zhang
* @since 2.9.8
*/
public class CatchOperator extends BaseOperator<CatchCondition> {
@Override
public CatchCondition build(Object[] objects) throws Exception {
OperatorHelper.checkObjectSizeEq(objects, 1);
Executable catchItem = OperatorHelper.convert(objects[0], Executable.class);
CatchCondition catchCondition = new CatchCondition();
catchCondition.setCatchItem(catchItem);
return catchCondition;
}
}

29
liteflow-core/src/main/java/com/yomahub/liteflow/exception/CatchErrorException.java Normal file
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package com.yomahub.liteflow.exception;
/**
* 类型错误异常
* @author Yun
*/
public class CatchErrorException extends RuntimeException {
private static final long serialVersionUID = 1L;
/**
* 异常信息
*/
private String message;
public CatchErrorException(String message) {
this.message = message;
}
@Override
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}

63
liteflow-core/src/main/java/com/yomahub/liteflow/flow/element/condition/CatchCondition.java Normal file
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package com.yomahub.liteflow.flow.element.condition;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import com.yomahub.liteflow.enums.ConditionTypeEnum;
import com.yomahub.liteflow.exception.CatchErrorException;
import com.yomahub.liteflow.flow.element.Executable;
import com.yomahub.liteflow.slot.DataBus;
import com.yomahub.liteflow.slot.Slot;
/**
* Catch Condition
* @author Bryan.Zhang
* @since 2.9.8
*/
public class CatchCondition extends Condition{
@Override
public void executeCondition(Integer slotIndex) throws Exception {
Slot slot = DataBus.getSlot(slotIndex);
try{
Executable catchExecutable = this.getCatchItem();
if (ObjectUtil.isNull(catchExecutable)){
String errorInfo = StrUtil.format("[{}]:no catch item find", slot.getRequestId());
throw new CatchErrorException(errorInfo);
}
catchExecutable.setCurrChainId(this.getCurrChainId());
catchExecutable.execute(slotIndex);
}catch (Exception e){
Executable doExecutable = this.getDoItem();
if (ObjectUtil.isNull(doExecutable)){
String errorInfo = StrUtil.format("[{}]:no catch do item find", slot.getRequestId());
throw new CatchErrorException(errorInfo);
}
doExecutable.setCurrChainId(this.getCurrChainId());
doExecutable.execute(slotIndex);
//catch之后需要把exception给清除掉
//正如同java的catch一样，异常自己处理了，属于正常流程了，整个流程状态应该是成功的
DataBus.getSlot(slotIndex).removeException();
}
}
@Override
public ConditionTypeEnum getConditionType() {
return ConditionTypeEnum.TYPE_CATCH;
}
public Executable getCatchItem(){
return this.getExecutableOne(ConditionKey.CATCH_KEY);
}
public void setCatchItem(Executable executable){
this.addExecutable(ConditionKey.CATCH_KEY, executable);
}
public Executable getDoItem(){
return this.getExecutableOne(ConditionKey.DO_KEY);
}
public void setDoItem(Executable executable){
this.addExecutable(ConditionKey.DO_KEY, executable);
}
}

45
liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/catchcase/CatchELSpringbootTest.java Normal file
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package com.yomahub.liteflow.test.catchcase;
import com.yomahub.liteflow.core.FlowExecutor;
import com.yomahub.liteflow.flow.LiteflowResponse;
import com.yomahub.liteflow.test.BaseTest;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.test.context.TestPropertySource;
import org.springframework.test.context.junit4.SpringRunner;
import javax.annotation.Resource;
/**
* springboot环境EL常规的例子测试
* @author Bryan.Zhang
*/
@RunWith(SpringRunner.class)
@TestPropertySource(value = "classpath:/catchcase/application.properties")
@SpringBootTest(classes = CatchELSpringbootTest.class)
@EnableAutoConfiguration
@ComponentScan({"com.yomahub.liteflow.test.catchcase.cmp"})
public class CatchELSpringbootTest extends BaseTest {
@Resource
private FlowExecutor flowExecutor;
@Test
public void testCatch1() throws Exception{
LiteflowResponse response = flowExecutor.execute2Resp("chain1", "arg");
Assert.assertTrue(response.isSuccess());
Assert.assertEquals("a==>c", response.getExecuteStepStrWithoutTime());
Assert.assertNull(response.getCause());
}
@Test
public void testCatch2() throws Exception{
LiteflowResponse response = flowExecutor.execute2Resp("chain2", "arg");
Assert.assertFalse(response.isSuccess());
Assert.assertEquals("a==>d", response.getExecuteStepStrWithoutTime());
}
}

22
liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/catchcase/cmp/ACmp.java Normal file
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/**
* <p>Title: liteflow</p>
* <p>Description: 轻量级的组件式流程框架</p>
* @author Bryan.Zhang
* @email weenyc31@163.com
* @Date 2020/4/1
*/
package com.yomahub.liteflow.test.catchcase.cmp;
import com.yomahub.liteflow.core.NodeComponent;
import org.springframework.stereotype.Component;
@Component("a")
public class ACmp extends NodeComponent {
@Override
public void process() {
System.out.println("ACmp executed!");
int i = 1/0;
System.out.println(i);
}
}

21
liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/catchcase/cmp/BCmp.java Normal file
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/**
* <p>Title: liteflow</p>
* <p>Description: 轻量级的组件式流程框架</p>
* @author Bryan.Zhang
* @email weenyc31@163.com
* @Date 2020/4/1
*/
package com.yomahub.liteflow.test.catchcase.cmp;
import com.yomahub.liteflow.core.NodeComponent;
import org.springframework.stereotype.Component;
@Component("b")
public class BCmp extends NodeComponent {
@Override
public void process() {
System.out.println("BCmp executed!");
}
}

21
liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/catchcase/cmp/CCmp.java Normal file
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/**
* <p>Title: liteflow</p>
* <p>Description: 轻量级的组件式流程框架</p>
* @author Bryan.Zhang
* @email weenyc31@163.com
* @Date 2020/4/1
*/
package com.yomahub.liteflow.test.catchcase.cmp;
import com.yomahub.liteflow.core.NodeComponent;
import org.springframework.stereotype.Component;
@Component("c")
public class CCmp extends NodeComponent {
@Override
public void process() {
System.out.println(this.getSlot().getException().getMessage());
}
}

21
liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/java/com/yomahub/liteflow/test/catchcase/cmp/DCmp.java Normal file
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/**
* <p>Title: liteflow</p>
* <p>Description: 轻量级的组件式流程框架</p>
* @author Bryan.Zhang
* @email weenyc31@163.com
* @Date 2020/4/1
*/
package com.yomahub.liteflow.test.catchcase.cmp;
import com.yomahub.liteflow.core.NodeComponent;
import org.springframework.stereotype.Component;
@Component("d")
public class DCmp extends NodeComponent {
@Override
public void process() {
throw new RuntimeException("test");
}
}

1
liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/catchcase/application.properties Normal file
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liteflow.rule-source=catchcase/flow.el.xml

15
liteflow-testcase-el/liteflow-testcase-el-springboot/src/test/resources/catchcase/flow.el.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE flow PUBLIC "liteflow" "liteflow.dtd">
<flow>
<chain name="chain1">
CATCH(
THEN(a,b)
).DO(c)
</chain>
<chain name="chain2">
CATCH(
THEN(a,b)
).DO(d)
</chain>
</flow>