com.zlyx.easy.drools.executor.ReadExecutor Maven / Gradle / Ivy
package com.zlyx.easy.drools.executor;
import java.lang.reflect.ParameterizedType;
import java.util.HashMap;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.zlyx.easy.core.utils.FileUtils;
import com.zlyx.easy.core.utils.StringUtils;
import com.zlyx.easy.drools.builder.RuleBuilder;
import com.zlyx.easy.drools.util.DroolsUtils;
/**
* 规则导入执行器
*
* @ClassName ImportExecutor
* @Author 赵光
* @Description ImportExecutor
* @Date 2020/5/28 0028
* @Version 1.0
*/
public abstract class ReadExecutor {
protected Logger log = LoggerFactory.getLogger(getClass());
protected static final String CLASS_TEMPLATE = "rule/rule.vm";
/**
*
* 渲染类模板
*
* @param classBody
* @param methodBody
* @return
* @throws Exception
*/
public String renderTemplate(RuleBuilder.RuleBody ruleBody, String ruleName, Map props)
throws Exception {
ruleBody = doFilter(ruleBody);
ruleBody.importClass(getTClass());
props.put("method_body", StringUtils.replaceAll(props.get("method_body"), ruleBody.props()));
props.put("import_package", ruleBody.header());
props.put("rule_context_domain", getTClass().getSimpleName());
String classTemplate = DroolsUtils.render(FileUtils.readResource(CLASS_TEMPLATE), ruleName, props);
System.out.print("\n=============================================================================\n");
System.out.print("\n\n输出渲染后文本内容：\n\n");
System.out.print(classTemplate);
System.out.print("\n=============================================================================\n");
return classTemplate;
}
/**
*
* 自定义设置
*
* @param classBody
* @return
*/
public RuleBuilder.RuleBody doFilter(RuleBuilder.RuleBody ruleBody) {
ruleBody.importClass(getTClass()); // 导入类
ruleBody.placeholders(new HashMap<>()); // 将常量替换为$符号引用的变量(规则导出为java的时候会用到)
ruleBody.props(new HashMap<>()); // 将$符号引用的替换为变量常量(验证规则的时候会用到)
return ruleBody;
}
/**
* 读取抽象类
*
* @return
*/
@SuppressWarnings("unchecked")
public Class getTClass() {
return (Class) ((ParameterizedType) this.getClass().getGenericSuperclass()).getActualTypeArguments()[0];
}
}