feature #I5WNMG 脚本组件支持javascript的语法
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everywhere.z
parent
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commit
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@ -16,7 +16,6 @@ import org.slf4j.LoggerFactory;
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import javax.script.*;
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import java.util.Map;
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import java.util.function.Consumer;
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/**
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* Groovy脚本语言的执行器实现
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@ -0,0 +1,23 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>liteflow-script-plugin</artifactId>
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<groupId>com.yomahub</groupId>
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<version>${revision}</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>liteflow-script-javascript</artifactId>
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<dependencies>
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<dependency>
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<groupId>com.yomahub</groupId>
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<artifactId>liteflow-core</artifactId>
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<version>${revision}</version>
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<scope>provided</scope>
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</dependency>
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</dependencies>
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</project>
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@ -0,0 +1,103 @@
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package com.yomahub.liteflow.script.javascript;
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import cn.hutool.core.bean.BeanUtil;
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import cn.hutool.core.util.ObjectUtil;
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import cn.hutool.core.util.StrUtil;
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import com.yomahub.liteflow.script.ScriptBeanManager;
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import com.yomahub.liteflow.script.ScriptExecuteWrap;
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import com.yomahub.liteflow.slot.DataBus;
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import com.yomahub.liteflow.slot.Slot;
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import com.yomahub.liteflow.script.ScriptExecutor;
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import com.yomahub.liteflow.script.exception.ScriptExecuteException;
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import com.yomahub.liteflow.script.exception.ScriptLoadException;
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import com.yomahub.liteflow.util.CopyOnWriteHashMap;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.script.*;
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import java.util.Map;
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/**
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* JavaScript脚本语言的执行器实现
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* @author Bryan.Zhang
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* @since 2.9.1
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*/
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public class JavaScriptExecutor implements ScriptExecutor {
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private final Logger log = LoggerFactory.getLogger(this.getClass());
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private ScriptEngine scriptEngine;
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private final Map<String, CompiledScript> compiledScriptMap = new CopyOnWriteHashMap<>();
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@Override
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public ScriptExecutor init() {
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ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
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scriptEngine = scriptEngineManager.getEngineByName("javascript");
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return this;
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}
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@Override
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public void load(String nodeId, String script) {
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try{
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CompiledScript compiledScript = ((Compilable) scriptEngine).compile(script);
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compiledScriptMap.put(nodeId, compiledScript);
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}catch (Exception e){
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String errorMsg = StrUtil.format("script loading error for node[{}], error msg:{}", nodeId, e.getMessage());
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throw new ScriptLoadException(errorMsg);
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}
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}
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@Override
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public Object execute(ScriptExecuteWrap wrap) {
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try{
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if (!compiledScriptMap.containsKey(wrap.getNodeId())){
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String errorMsg = StrUtil.format("script for node[{}] is not loaded", wrap.getNodeId());
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throw new ScriptLoadException(errorMsg);
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}
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CompiledScript compiledScript = compiledScriptMap.get(wrap.getNodeId());
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Bindings bindings = new SimpleBindings();
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//往脚本语言绑定表里循环增加绑定上下文的key
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//key的规则为自定义上下文的simpleName
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//比如你的自定义上下文为AbcContext，那么key就为:abcContext
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//这里不统一放一个map的原因是考虑到有些用户会调用上下文里的方法，而不是参数，所以脚本语言的绑定表里也是放多个上下文
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DataBus.getContextBeanList(wrap.getSlotIndex()).forEach(o -> {
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String key = StrUtil.lowerFirst(o.getClass().getSimpleName());
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bindings.put(key, o);
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});
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//把wrap对象转换成元数据map
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Map<String, Object> metaMap = BeanUtil.beanToMap(wrap);
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//在元数据里放入主Chain的流程参数
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Slot slot = DataBus.getSlot(wrap.getSlotIndex());
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metaMap.put("requestData", slot.getRequestData());
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//如果有隐式流程，则放入隐式流程的流程参数
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Object subRequestData = slot.getChainReqData(wrap.getCurrChainName());
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if (ObjectUtil.isNotNull(subRequestData)){
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metaMap.put("subRequestData", subRequestData);
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}
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//往脚本上下文里放入元数据
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bindings.put("_meta", metaMap);
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//放入用户自己定义的bean
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bindings.putAll(ScriptBeanManager.getScriptBeanMap());
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return compiledScript.eval(bindings);
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}catch (Exception e){
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log.error(e.getMessage(), e);
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String errorMsg = StrUtil.format("script execute error for node[{}]", wrap.getNodeId());
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throw new ScriptExecuteException(errorMsg);
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}
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}
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@Override
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public void cleanCache() {
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compiledScriptMap.clear();
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}
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}
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@ -0,0 +1,2 @@
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# JavaScript的实现
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com.yomahub.liteflow.script.javascript.JavaScriptExecutor
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@ -17,6 +17,7 @@
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<modules>
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<module>liteflow-script-qlexpress</module>
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<module>liteflow-script-groovy</module>
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<module>liteflow-script-javascript</module>
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</modules>
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</project>
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@ -0,0 +1,33 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>liteflow-testcase-el</artifactId>
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<groupId>com.yomahub</groupId>
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<version>${revision}</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>liteflow-testcase-el-script-javascript-springboot</artifactId>
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<dependencies>
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<dependency>
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<groupId>com.yomahub</groupId>
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<artifactId>liteflow-spring-boot-starter</artifactId>
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<version>${revision}</version>
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</dependency>
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<dependency>
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<groupId>com.yomahub</groupId>
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<artifactId>liteflow-script-javascript</artifactId>
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<version>${revision}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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</dependency>
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</dependencies>
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</project>
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@ -0,0 +1,20 @@
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package com.yomahub.liteflow.test;
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import com.yomahub.liteflow.flow.FlowBus;
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import com.yomahub.liteflow.property.LiteflowConfigGetter;
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import com.yomahub.liteflow.spi.holder.SpiFactoryCleaner;
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import com.yomahub.liteflow.spring.ComponentScanner;
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import com.yomahub.liteflow.thread.ExecutorHelper;
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import org.junit.AfterClass;
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public class BaseTest {
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@AfterClass
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public static void cleanScanCache(){
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ComponentScanner.cleanCache();
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FlowBus.cleanCache();
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ExecutorHelper.loadInstance().clearExecutorServiceMap();
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SpiFactoryCleaner.clean();
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LiteflowConfigGetter.clean();
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}
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}
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@ -0,0 +1,45 @@
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package com.yomahub.liteflow.test.script.javascript.common;
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import cn.hutool.core.io.resource.ResourceUtil;
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import com.yomahub.liteflow.core.FlowExecutor;
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import com.yomahub.liteflow.enums.FlowParserTypeEnum;
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import com.yomahub.liteflow.flow.FlowBus;
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import com.yomahub.liteflow.flow.LiteflowResponse;
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import com.yomahub.liteflow.slot.DefaultContext;
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import com.yomahub.liteflow.test.BaseTest;
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import org.junit.Assert;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.test.context.TestPropertySource;
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import org.springframework.test.context.junit4.SpringRunner;
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import javax.annotation.Resource;
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/**
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* 测试springboot下的groovy脚本组件，基于xml配置
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* @author Bryan.Zhang
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* @since 2.6.0
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*/
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@RunWith(SpringRunner.class)
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@TestPropertySource(value = "classpath:/common/application.properties")
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@SpringBootTest(classes = LiteflowXmlScriptJsELTest.class)
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@EnableAutoConfiguration
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@ComponentScan({"com.yomahub.liteflow.test.script.javascript.common.cmp"})
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public class LiteflowXmlScriptJsELTest extends BaseTest {
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@Resource
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private FlowExecutor flowExecutor;
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//测试普通脚本节点
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@Test
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public void testCommon1() {
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LiteflowResponse response = flowExecutor.execute2Resp("chain1", "arg");
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DefaultContext context = response.getFirstContextBean();
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Assert.assertTrue(response.isSuccess());
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Assert.assertEquals(Double.valueOf(11), context.getData("s1"));
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}
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}
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/**
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* <p>Title: liteflow</p>
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* <p>Description: 轻量级的组件式流程框架</p>
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* @author Bryan.Zhang
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* @email weenyc31@163.com
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* @Date 2020/4/1
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*/
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package com.yomahub.liteflow.test.script.javascript.common.cmp;
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import com.yomahub.liteflow.annotation.LiteflowComponent;
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import com.yomahub.liteflow.core.NodeComponent;
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@LiteflowComponent("a")
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public class ACmp extends NodeComponent {
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@Override
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public void process() {
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System.out.println("ACmp executed!");
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}
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}
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/**
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* <p>Title: liteflow</p>
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* <p>Description: 轻量级的组件式流程框架</p>
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* @author Bryan.Zhang
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* @email weenyc31@163.com
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* @Date 2020/4/1
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*/
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package com.yomahub.liteflow.test.script.javascript.common.cmp;
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import com.yomahub.liteflow.annotation.LiteflowComponent;
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import com.yomahub.liteflow.core.NodeComponent;
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@LiteflowComponent("b")
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public class BCmp extends NodeComponent {
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@Override
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public void process() {
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System.out.println("BCmp executed!");
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}
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}
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/**
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* <p>Title: liteflow</p>
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* <p>Description: 轻量级的组件式流程框架</p>
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* @author Bryan.Zhang
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* @email weenyc31@163.com
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* @Date 2020/4/1
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*/
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package com.yomahub.liteflow.test.script.javascript.common.cmp;
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import com.yomahub.liteflow.annotation.LiteflowComponent;
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import com.yomahub.liteflow.core.NodeComponent;
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@LiteflowComponent("c")
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public class CCmp extends NodeComponent {
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@Override
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public void process() {
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System.out.println("CCmp executed!");
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}
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}
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@ -0,0 +1,24 @@
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/**
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* <p>Title: liteflow</p>
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* <p>Description: 轻量级的组件式流程框架</p>
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* @author Bryan.Zhang
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* @email weenyc31@163.com
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* @Date 2020/4/1
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*/
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package com.yomahub.liteflow.test.script.javascript.common.cmp;
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import com.yomahub.liteflow.annotation.LiteflowComponent;
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import com.yomahub.liteflow.core.NodeComponent;
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import com.yomahub.liteflow.slot.DefaultContext;
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@LiteflowComponent("d")
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public class DCmp extends NodeComponent {
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@Override
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public void process() {
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DefaultContext context = this.getFirstContextBean();
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context.setData("count",198);
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System.out.println("DCmp executed!");
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}
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}
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@ -0,0 +1 @@
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liteflow.rule-source=common/flow.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<flow>
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<nodes>
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<node id="s1" name="普通脚本1" type="script">
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<![CDATA[
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var a=3;
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var b=2;
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var c=1;
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var d=5;
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function addByArray(values) {
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var sum = 0;
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for (var i = 0; i < values.length; i++) {
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sum += values[i];
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}
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return sum;
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}
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var result = addByArray([a,b,c,d]);
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defaultContext.setData("s1",parseInt(result));
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]]>
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</node>
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</nodes>
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<chain name="chain1">
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THEN(a, b, c, s1);
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</chain>
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</flow>
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@ -22,6 +22,7 @@
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<module>liteflow-testcase-el-declare-multi-springboot</module>
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<module>liteflow-testcase-el-script-groovy-springboot</module>
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<module>liteflow-testcase-el-script-qlexpress-springboot</module>
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<module>liteflow-testcase-el-script-javascript-springboot</module>
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<module>liteflow-testcase-el-zk-springboot</module>
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<module>liteflow-testcase-el-sql-springboot</module>
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<module>liteflow-testcase-el-nacos-springboot</module>
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