初始化第一版influxORM

2023-04-21 13:23:33 +08:00
parent 00731b674f
commit 8aeb21265c
18 changed files with 730 additions and 22 deletions
--- a/src/main/java/com/njcn/influx/base/ProxyMapper.java
+++ b/src/main/java/com/njcn/influx/base/ProxyMapper.java
@@ -0,0 +1,68 @@
+package com.njcn.influx.base;
+
+
+import com.njcn.influx.ano.Delete;
+import com.njcn.influx.ano.Select;
+import com.njcn.influx.ano.Insert;
+import com.njcn.influx.core.InfluxExecutor;
+import com.njcn.influx.core.ParameterHandler;
+import com.njcn.influx.core.ResultSetHandler;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Parameter;
+import java.util.List;
+
+public class ProxyMapper implements InvocationHandler {
+
+    private ParameterHandler parameterHandler;
+    private InfluxExecutor executor;
+    private ResultSetHandler resultSetHandler;
+
+    public ProxyMapper(ParameterHandler parameterHandler, InfluxExecutor executor, ResultSetHandler resultSetHandler) {
+        this.parameterHandler = parameterHandler;
+        this.executor = executor;
+        this.resultSetHandler = resultSetHandler;
+    }
+
+    @Override
+    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+        Annotation[] annotations = method.getAnnotations();
+        if (annotations.length == 1) {
+            Annotation annotation = annotations[0];
+            Class<? extends Annotation> annotationType = annotation.annotationType();
+            //是查询的
+            if (annotationType == Select.class) {
+                Select selectAnnotation = method.getAnnotation(Select.class);
+                //拼接sql
+                String sql = selectAnnotation.value();
+                Parameter[] parameters = method.getParameters();
+                sql = parameterHandler.handleParameter(parameters, args, sql);
+                //查询结果
+                Class resultType = selectAnnotation.resultType();
+                List<Object> list = executor.select(sql, resultType);
+                //根据返回类型返回结果
+                Class<?> returnType = method.getReturnType();
+                return resultSetHandler.handleResultSet(list, returnType);
+            }
+            //是插入的
+            if (annotationType == Insert.class) {
+                executor.insert(args);
+            }
+            //是删除的
+            if (annotationType == Delete.class) {
+                Delete deleteAnnotation = method.getAnnotation(Delete.class);
+                //拼接sql
+                String sql = deleteAnnotation.value();
+                Parameter[] parameters = method.getParameters();
+
+                String database = deleteAnnotation.database();
+                sql = parameterHandler.handleParameter(parameters, args, sql);
+                //执行sql
+                executor.delete(sql, database);
+            }
+        }
+        return null;
+    }
+}