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feature #I7V6VB 建议增加Janino插件，支持java脚本的书写

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This commit is contained in:
everywhere.z
2023-08-27 17:38:59 +08:00
parent aad01a30f4
commit 304a2d1096
10 changed files with 95 additions and 11 deletions
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5
liteflow-script-plugin/liteflow-script-java/src/main/java/com/yomahub/liteflow/script/body/JaninoBreakScriptBody.java Normal file
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@@ -0,0 +1,5 @@
package com.yomahub.liteflow.script.body;
public interface JaninoBreakScriptBody extends JaninoScriptBody<Boolean>{
}

5
liteflow-script-plugin/liteflow-script-java/src/main/java/com/yomahub/liteflow/script/body/JaninoCommonScriptBody.java Normal file
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@@ -0,0 +1,5 @@
package com.yomahub.liteflow.script.body;
public interface JaninoCommonScriptBody extends JaninoScriptBody<Void>{
}

6
liteflow-script-plugin/liteflow-script-java/src/main/java/com/yomahub/liteflow/script/body/JaninoForScriptBody.java Normal file
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@@ -0,0 +1,6 @@
package com.yomahub.liteflow.script.body;
public interface JaninoForScriptBody extends JaninoScriptBody<Integer>{
}

6
liteflow-script-plugin/liteflow-script-java/src/main/java/com/yomahub/liteflow/script/body/JaninoIfScriptBody.java Normal file
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@@ -0,0 +1,6 @@
package com.yomahub.liteflow.script.body;
public interface JaninoIfScriptBody extends JaninoScriptBody<Boolean>{
}

7
liteflow-script-plugin/liteflow-script-java/src/main/java/com/yomahub/liteflow/script/body/JaninoScriptBody.java Normal file
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@@ -0,0 +1,7 @@
package com.yomahub.liteflow.script.body;
import com.yomahub.liteflow.script.ScriptExecuteWrap;
public interface JaninoScriptBody<T> {
T body(ScriptExecuteWrap wrap);
}

6
liteflow-script-plugin/liteflow-script-java/src/main/java/com/yomahub/liteflow/script/body/JaninoSwitchScriptBody.java Normal file
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@@ -0,0 +1,6 @@
package com.yomahub.liteflow.script.body;
public interface JaninoSwitchScriptBody extends JaninoScriptBody<String>{
}

6
liteflow-script-plugin/liteflow-script-java/src/main/java/com/yomahub/liteflow/script/body/JaninoWhileScriptBody.java Normal file
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@@ -0,0 +1,6 @@
package com.yomahub.liteflow.script.body;
public interface JaninoWhileScriptBody extends JaninoScriptBody<Boolean>{
}

25
liteflow-script-plugin/liteflow-script-java/src/main/java/com/yomahub/liteflow/script/java/JavaExecutor.java
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@@ -1,9 +1,11 @@
package com.yomahub.liteflow.script.java;
import cn.hutool.core.util.ReUtil;
import cn.hutool.core.util.StrUtil;
import com.yomahub.liteflow.enums.ScriptTypeEnum;
import com.yomahub.liteflow.script.ScriptExecuteWrap;
import com.yomahub.liteflow.script.ScriptExecutor;
import com.yomahub.liteflow.script.body.JaninoCommonScriptBody;
import com.yomahub.liteflow.script.exception.ScriptLoadException;
import com.yomahub.liteflow.util.CopyOnWriteHashMap;
import org.codehaus.commons.compiler.CompilerFactoryFactory;
@@ -14,13 +16,15 @@ public class JavaExecutor extends ScriptExecutor {
private final Map<String, IScriptEvaluator> compiledScriptMap = new CopyOnWriteHashMap<>();
@Override
public void load(String nodeId, String script) {
try{
IScriptEvaluator se = CompilerFactoryFactory.getDefaultCompilerFactory(this.getClass().getClassLoader()).newScriptEvaluator();
se.setReturnType(Object.class);
se.setParameters(new String[] {"_meta"}, new Class[] {ScriptExecuteWrap.class});
se.cook(script);
se.cook(convertScript(script));
compiledScriptMap.put(nodeId, se);
}catch (Exception e){
String errorMsg = StrUtil.format("script loading error for node[{}],error msg:{}", nodeId, e.getMessage());
@@ -48,4 +52,23 @@ public class JavaExecutor extends ScriptExecutor {
public ScriptTypeEnum scriptType() {
return ScriptTypeEnum.JAVA;
}
private String convertScript(String script){
//替换掉public，private，protected等修饰词
String script1 = script.replaceAll("public class", "class")
.replaceAll("private class", "class")
.replaceAll("protected class", "class");
//分析出class的具体名称
String className = ReUtil.getGroup1("class\\s+(\\w+)\\s+implements", script1);
if (StrUtil.isBlank(className)){
throw new RuntimeException("cannot find class defined");
}
return "import com.yomahub.liteflow.script.body.JaninoCommonScriptBody;\n" +
script1 + "\n" +
StrUtil.format("{} item = new {}();\n", className, className) +
"if (item instanceof JaninoCommonScriptBody){item.body(_meta);return null;}else{return item.body(_meta);}";
}
}