feature #I6A2GL 增加迭代器表达式特性，用于迭代循环中的集合

liteflow-testcase-el/liteflow-testcase-el-declare-multi-springboot/src/test/java/com/yomahub/liteflow/test/iterator/IteratorELDeclMultiSpringbootTest.java

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+package com.yomahub.liteflow.test.iterator;
+
+import cn.hutool.core.collection.ListUtil;
+import com.yomahub.liteflow.core.FlowExecutor;
+import com.yomahub.liteflow.flow.LiteflowResponse;
+import com.yomahub.liteflow.slot.DefaultContext;
+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;
+import java.util.List;
+
+/**
+ * springboot环境最普通的例子测试
+ * @author Bryan.Zhang
+ * @since 2.6.4
+ */
+@RunWith(SpringRunner.class)
+@TestPropertySource(value = "classpath:/iterator/application.properties")
+@SpringBootTest(classes = IteratorELDeclMultiSpringbootTest.class)
+@EnableAutoConfiguration
+@ComponentScan({"com.yomahub.liteflow.test.iterator.cmp"})
+public class IteratorELDeclMultiSpringbootTest extends BaseTest {
+
+    @Resource
+    private FlowExecutor flowExecutor;
+
+    //最简单的情况
+    @Test
+    public void testIt1() throws Exception{
+        List<String> list = ListUtil.toList("1","2","3");
+        LiteflowResponse response = flowExecutor.execute2Resp("chain1", list);
+        Assert.assertTrue(response.isSuccess());
+        DefaultContext context = response.getFirstContextBean();
+        String str = context.getData("test");
+        Assert.assertEquals("123", str);
+    }
+
+    //迭代器带break
+    @Test
+    public void testIt2() throws Exception{
+        List<String> list = ListUtil.toList("1","2","3");
+        LiteflowResponse response = flowExecutor.execute2Resp("chain2", list);
+        Assert.assertTrue(response.isSuccess());
+        DefaultContext context = response.getFirstContextBean();
+        String str = context.getData("test");
+        Assert.assertEquals("12", str);
+    }
+
+}

liteflow-testcase-el/liteflow-testcase-el-declare-multi-springboot/src/test/java/com/yomahub/liteflow/test/iterator/cmp/CmpConfig.java

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+package com.yomahub.liteflow.test.iterator.cmp;
+
+import com.yomahub.liteflow.annotation.LiteflowComponent;
+import com.yomahub.liteflow.annotation.LiteflowMethod;
+import com.yomahub.liteflow.core.NodeComponent;
+import com.yomahub.liteflow.enums.LiteFlowMethodEnum;
+import com.yomahub.liteflow.enums.NodeTypeEnum;
+import com.yomahub.liteflow.slot.DefaultContext;
+import com.yomahub.liteflow.test.base.cmp.TestDomain;
+
+import javax.annotation.Resource;
+import java.util.Iterator;
+import java.util.List;
+
+@LiteflowComponent
+public class CmpConfig {
+
+    @LiteflowMethod(value = LiteFlowMethodEnum.PROCESS, nodeId = "a")
+    public void processA(NodeComponent bindCmp) {
+        String key = "test";
+        DefaultContext context = bindCmp.getFirstContextBean();
+        if (!context.hasData(key)){
+            context.setData(key, bindCmp.getCurrLoopObj());
+        }else{
+            String str = context.getData(key);
+            str += bindCmp.getCurrLoopObj();
+            context.setData(key, str);
+        }
+    }
+
+    @LiteflowMethod(value = LiteFlowMethodEnum.PROCESS_BREAK, nodeId = "b", nodeType = NodeTypeEnum.BREAK)
+    public boolean processB(NodeComponent bindCmp) {
+        return bindCmp.getLoopIndex() == 1;
+    }
+    @LiteflowMethod(value = LiteFlowMethodEnum.PROCESS_ITERATOR, nodeId = "it", nodeType = NodeTypeEnum.ITERATOR)
+    public Iterator<?> processIT(NodeComponent bindCmp) {
+        List<String> list = bindCmp.getRequestData();
+        return list.iterator();
+    }
+}
+
+

liteflow-testcase-el/liteflow-testcase-el-declare-multi-springboot/src/test/resources/iterator/application.properties

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+liteflow.rule-source=iterator/flow.xml

liteflow-testcase-el/liteflow-testcase-el-declare-multi-springboot/src/test/resources/iterator/flow.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE flow PUBLIC  "liteflow" "liteflow.dtd">
+<flow>
+    <chain name="chain1">
+        ITERATOR(it).DO(a);
+    </chain>
+
+    <chain name="chain2">
+        ITERATOR(it).DO(a).BREAK(b);
+    </chain>
+</flow>