feature #I44FT8 支持脚本语言的组件，并支持动态刷新脚本(版本特性)

liteflow-core/src/main/java/com/yomahub/liteflow/parser/JsonFlowParser.java

@@ -50,22 +50,33 @@ public abstract class JsonFlowParser extends FlowParser {
     //json格式，解析过程
     public void parseJsonObject(List<JSONObject> flowJsonObjectList) throws Exception {
         try {
+            for (Map.Entry<String, NodeComponent> componentEntry : ComponentScanner.nodeComponentMap.entrySet()) {
+                if (!FlowBus.containNode(componentEntry.getKey())) {
+                    FlowBus.addNode(componentEntry.getKey(), new Node(componentEntry.getValue()));
+                }
+            }
+
             for (JSONObject flowJsonObject : flowJsonObjectList) {
-                //判断是以spring方式注册节点，还是以json方式注册
-                if (ComponentScanner.nodeComponentMap.isEmpty()) {
+                // 当存在<nodes>节点定义时，解析node节点
+                if (flowJsonObject.getJSONObject("flow").containsKey("nodes")){
                     JSONArray nodeArrayList = flowJsonObject.getJSONObject("flow").getJSONObject("nodes").getJSONArray("node");
-                    String id, name, clazz;
+                    String id, name, clazz, script;
                     for (int i = 0; i < nodeArrayList.size(); i++) {
                         JSONObject nodeObject = nodeArrayList.getJSONObject(i);
                         id = nodeObject.getString("id");
                         name = nodeObject.getString("name");
                         clazz = nodeObject.getString("class");
-                        FlowBus.addNode(id, name, clazz);
-                    }
-                } else {
-                    for (Map.Entry<String, NodeComponent> componentEntry : ComponentScanner.nodeComponentMap.entrySet()) {
-                        if (!FlowBus.containNode(componentEntry.getKey())) {
-                            FlowBus.addNode(componentEntry.getKey(), new Node(componentEntry.getValue()));
+
+                        //如果有class的定义，则表明是java组件，无class的定义，则表明是脚本组件
+                        if (StrUtil.isNotBlank(clazz)){
+                            if (!FlowBus.containNode(id)){
+                                FlowBus.addNode(id, name, clazz);
+                            }
+                        }else{
+                            if (!FlowBus.containNode(id)){
+                                script = nodeObject.getString("script");
+                                FlowBus.addScriptNode(id, name, script);
+                            }
                         }
                     }
                 }

liteflow-core/src/main/java/com/yomahub/liteflow/parser/XmlFlowParser.java

@@ -72,6 +72,7 @@ public abstract class XmlFlowParser extends FlowParser {
                         name = e.attributeValue("name");
                         clazz = e.attributeValue("class");
 
+                        //如果有class的定义，则表明是java组件，无class的定义，则表明是脚本组件
                         if (StrUtil.isNotBlank(clazz)){
                             if (!FlowBus.containNode(id)){
                                 FlowBus.addNode(id, name, clazz);

liteflow-script-common/src/main/java/com/yomahub/liteflow/script/ScriptFactory.java

@@ -1,6 +1,7 @@
 package com.yomahub.liteflow.script;
 
 import cn.hutool.core.util.ObjectUtil;
+import com.yomahub.liteflow.script.exception.ScriptSpiException;
 
 import java.util.ServiceLoader;
 
@@ -8,7 +9,7 @@ public class ScriptFactory {
 
     private static ScriptFactory scriptFactory;
 
-    private static ScriptExecutor scriptExecutor;
+    private ScriptExecutor scriptExecutor;
 
     public static ScriptFactory loadInstance(){
         if (ObjectUtil.isNull(scriptFactory)){
@@ -20,9 +21,12 @@ public class ScriptFactory {
     public ScriptExecutor getScriptExecutor(){
         if (ObjectUtil.isNull(scriptExecutor)){
             ServiceLoader<ScriptExecutor> loader = ServiceLoader.load(ScriptExecutor.class);
+
             if (loader.iterator().hasNext()){
                 scriptExecutor = loader.iterator().next().init();
                 return scriptExecutor;
+            }else{
+                throw new ScriptSpiException("script spi component failed to load");
             }
         }
         return scriptExecutor;

liteflow-script-common/src/main/java/com/yomahub/liteflow/script/exception/ScriptSpiException.java

@@ -0,0 +1,27 @@
+
+package com.yomahub.liteflow.script.exception;
+
+/**
+ * 脚本SPI插件加载异常
+ * @author Bryan.Zhang
+ * @since 2.5.11
+ */
+public class ScriptSpiException extends RuntimeException {
+
+	private static final long serialVersionUID = 1L;
+
+	/** 异常信息 */
+	private String message;
+
+	public ScriptSpiException(String message) {
+		this.message = message;
+	}
+
+	public String getMessage() {
+		return message;
+	}
+
+	public void setMessage(String message) {
+		this.message = message;
+	}
+}

liteflow-script-qlexpress/pom.xml

@@ -16,6 +16,7 @@
             <groupId>com.yomahub</groupId>
             <artifactId>liteflow-script-common</artifactId>
             <version>${project.version}</version>
+            <optional>true</optional>
         </dependency>
         <dependency>
             <groupId>com.yomahub</groupId>

liteflow-script-qlexpress/src/main/resources/META-INF/services/com.yomahub.liteflow.script.ScriptExecutor

@@ -0,0 +1,2 @@
+# QLExpress的实现
+com.yomahub.liteflow.script.qlexpress.QLExpressScriptExecutor

liteflow-spring-boot-starter/pom.xml

@@ -52,6 +52,12 @@
             <artifactId>zkclient</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>com.yomahub</groupId>
+            <artifactId>liteflow-script-qlexpress</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>

liteflow-spring-boot-starter/src/main/resources/META-INF/spring.factories

@@ -1,6 +1,4 @@
 org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
   com.yomahub.liteflow.springboot.config.LiteflowPropertyAutoConfiguration,\
   com.yomahub.liteflow.springboot.config.LiteflowExecutorAutoConfiguration,\
-  com.yomahub.liteflow.springboot.config.LiteflowMainAutoConfiguration
-
-
+  com.yomahub.liteflow.springboot.config.LiteflowMainAutoConfiguration

liteflow-spring-boot-starter/src/test/java/com/yomahub/liteflow/test/aop/LFGlobalAOPTest.java

@@ -3,8 +3,11 @@ package com.yomahub.liteflow.test.aop;
 import com.yomahub.liteflow.core.FlowExecutor;
 import com.yomahub.liteflow.entity.data.DefaultSlot;
 import com.yomahub.liteflow.entity.data.LiteflowResponse;
+import com.yomahub.liteflow.flow.FlowBus;
+import com.yomahub.liteflow.spring.ComponentScanner;
 import com.yomahub.liteflow.test.BaseTest;
 import com.yomahub.liteflow.test.aop.aspect.CmpAspect;
+import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -55,4 +58,10 @@ public class LFGlobalAOPTest extends BaseTest {
         Assert.assertEquals("before_after", response.getSlot().getData("d"));
         Assert.assertEquals("before_after", response.getSlot().getData("e"));
     }
+
+    @AfterClass
+    public static void cleanScanCache(){
+        BaseTest.cleanScanCache();
+        ComponentScanner.cmpAroundAspect = null;
+    }
 }

liteflow-spring-boot-starter/src/test/java/com/yomahub/liteflow/test/scriptnode/LiteflowScriptSpringbootTest.java

@@ -0,0 +1,40 @@
+package com.yomahub.liteflow.test.scriptnode;
+
+import com.yomahub.liteflow.core.FlowExecutor;
+import com.yomahub.liteflow.entity.data.DefaultSlot;
+import com.yomahub.liteflow.entity.data.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;
+
+
+/**
+ * 测试springboot下的脚本组件
+ * @author Bryan.Zhang
+ * @since 2.5.11
+ */
+@RunWith(SpringRunner.class)
+@TestPropertySource(value = "classpath:/scriptnode/application.properties")
+@SpringBootTest(classes = LiteflowScriptSpringbootTest.class)
+@EnableAutoConfiguration
+@ComponentScan({"com.yomahub.liteflow.test.scriptnode.cmp"})
+public class LiteflowScriptSpringbootTest extends BaseTest {
+
+    @Resource
+    private FlowExecutor flowExecutor;
+
+    @Test
+    public void testScript1() {
+        LiteflowResponse<DefaultSlot> response = flowExecutor.execute2Resp("chain1", "arg");
+        Assert.assertTrue(response.isSuccess());
+        Assert.assertEquals(Integer.valueOf(6), response.getSlot().getData("s1"));
+    }
+}

liteflow-spring-boot-starter/src/test/java/com/yomahub/liteflow/test/scriptnode/cmp/ACmp.java

@@ -0,0 +1,20 @@
+/**
+ * <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.scriptnode.cmp;
+
+import com.yomahub.liteflow.annotation.LiteflowComponent;
+import com.yomahub.liteflow.core.NodeComponent;
+
+@LiteflowComponent("a")
+public class ACmp extends NodeComponent {
+
+	@Override
+	public void process() {
+		System.out.println("ACmp executed!");
+	}
+}

liteflow-spring-boot-starter/src/test/java/com/yomahub/liteflow/test/scriptnode/cmp/BCmp.java

@@ -0,0 +1,21 @@
+/**
+ * <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.scriptnode.cmp;
+
+import com.yomahub.liteflow.annotation.LiteflowComponent;
+import com.yomahub.liteflow.core.NodeComponent;
+
+@LiteflowComponent("b")
+public class BCmp extends NodeComponent {
+
+	@Override
+	public void process() {
+		System.out.println("BCmp executed!");
+	}
+
+}

liteflow-spring-boot-starter/src/test/java/com/yomahub/liteflow/test/scriptnode/cmp/CCmp.java

@@ -0,0 +1,21 @@
+/**
+ * <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.scriptnode.cmp;
+
+import com.yomahub.liteflow.annotation.LiteflowComponent;
+import com.yomahub.liteflow.core.NodeComponent;
+
+@LiteflowComponent("c")
+public class CCmp extends NodeComponent {
+
+	@Override
+	public void process() {
+		System.out.println("CCmp executed!");
+	}
+
+}

liteflow-spring-boot-starter/src/test/resources/scriptnode/application.properties

@@ -0,0 +1 @@
+liteflow.rule-source=scriptnode/flow.xml

liteflow-spring-boot-starter/src/test/resources/scriptnode/flow.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<flow>
+    <nodes>
+        <node id="s1">
+            <![CDATA[
+                a=3;
+                b=2;
+                slot.setData("s1",a*b);
+            ]]>
+        </node>
+    </nodes>
+
+    <chain name="chain1">
+        <then value="a,b,c,s1"/>
+    </chain>
+</flow>