feat: 数据集视图底层sql拼接使用stg重构(mysql部分)

backend/pom.xml

@@ -365,6 +365,11 @@
             <version>12.2.0.1</version>
         </dependency>
 
+        <dependency>
+            <groupId>org.antlr</groupId>
+            <artifactId>ST4</artifactId>
+            <version>4.0.8</version>
+        </dependency>
     </dependencies>
 
     <build>

backend/src/main/java/io/dataease/datasource/constants/DatasourceTypes.java

 package io.dataease.datasource.constants;
 
 public enum DatasourceTypes {
-    mysql, sqlServer, excel, doris, oracle
+    excel("excel", "excel", "", "", "", "", ""),
+    mysql("mysql", "mysql", "com.mysql.jdbc.Driver", "`", "`", "'", "'"),
+    sqlServer("sqlServer", "sqlServer", "com.microsoft.sqlserver.jdbc.SQLServerDriver", "\"", "\"", "\"", "\""),
+    doris("doris", "doris", "com.mysql.jdbc.Driver", "`", "`", "", ""),
+    oracle("oracle", "oracle", "oracle.jdbc.driver.OracleDriver", "\"", "\"", "\"", "\"");
+
+    private String feature;
+    private String desc;
+    private String driver;
+    private String keywordPrefix;
+    private String keywordSuffix;
+    private String aliasPrefix;
+    private String aliasSuffix;
+
+    DatasourceTypes(String feature, String desc, String driver, String keywordPrefix, String keywordSuffix, String aliasPrefix, String aliasSuffix) {
+        this.feature = feature;
+        this.desc = desc;
+        this.driver = driver;
+        this.keywordPrefix = keywordPrefix;
+        this.keywordSuffix = keywordSuffix;
+        this.aliasPrefix = aliasPrefix;
+        this.aliasSuffix = aliasSuffix;
+    }
+
+    public String getFeature() {
+        return feature;
+    }
+
+    public String getDesc() {
+        return desc;
+    }
+
+    public String getDriver() {
+        return driver;
+    }
+
+    public String getKeywordPrefix() {
+        return keywordPrefix;
+    }
+
+    public String getKeywordSuffix() {
+        return keywordSuffix;
+    }
+
+    public String getAliasPrefix() {
+        return aliasPrefix;
+    }
+
+    public String getAliasSuffix() {
+        return aliasSuffix;
+    }
 }

backend/src/main/java/io/dataease/dto/sqlObj/SQLObj.java

+package io.dataease.dto.sqlObj;
+
+import lombok.Builder;
+import lombok.Data;
+
+/**
+ * @Author gin
+ * @Date 2021/7/9 12:12 下午
+ */
+@Data
+@Builder
+public class SQLObj {
+    private String tableName;
+    private String tableAlias;
+
+    private String fieldName;
+    private String fieldAlias;
+
+    private String groupField;
+    private String groupAlias;
+
+    private String orderField;
+    private String orderAlias;
+    private String orderDirection;
+
+    private String whereField;
+    private String whereAlias;
+    private String whereTermAndValue;
+}

backend/src/main/java/io/dataease/provider/SQLConstants.java

@@ -8,9 +8,34 @@ import java.util.List;
  * @Date 2021/7/8 3:12 下午
  */
 public class SQLConstants {
+    /**
+     * 维度类型list
+     */
     public static final List<Integer> DIMENSION_TYPE = new ArrayList<Integer>() {{
         add(0);// 文本
         add(1);// 时间
         add(5);// 地理位置
     }};
+
+    /**
+     * 指标类型list
+     */
+    public static final List<Integer> QUOTA_TYPE = new ArrayList<Integer>() {{
+        add(2);// 整型
+        add(3);// 浮点
+        add(4);// 布尔
+    }};
+
+    /**
+     * sql ST模板
+     */
+    public static final String SQL_TEMPLATE = "sql/sqlTemplate.stg";
+
+    public static final String TABLE_ALIAS_PREFIX = "T_A_%s";
+    public static final String FIELD_ALIAS_X_PREFIX = "F_AX_%s";
+    public static final String FIELD_ALIAS_Y_PREFIX = "F_AY_%s";
+    public static final String GROUP_ALIAS_PREFIX = "G_A_%s";
+    public static final String ORDER_ALIAS_X_PREFIX = "O_AX_%s";
+    public static final String ORDER_ALIAS_Y_PREFIX = "O_AY_%s";
+    public static final String WHERE_ALIAS_PREFIX = "W_A_%s";
 }

backend/src/main/java/io/dataease/provider/mysql/MySQLConstants.java

+package io.dataease.provider.mysql;
+
+import io.dataease.provider.SQLConstants;
+
+import static io.dataease.datasource.constants.DatasourceTypes.mysql;
+
+/**
+ * @Author gin
+ * @Date 2021/7/8 7:22 下午
+ */
+public class MySQLConstants extends SQLConstants {
+    public static final String KEYWORD_TABLE = mysql.getKeywordPrefix() + "%s" + mysql.getKeywordSuffix();
+
+    public static final String KEYWORD_FIX = "%s." + mysql.getKeywordPrefix() + "%s" + mysql.getKeywordSuffix();
+
+    public static final String UNIX_TIMESTAMP = "UNIX_TIMESTAMP(%s)";
+
+    public static final String DATE_FORMAT = "DATE_FORMAT(%s,'%s')";
+
+    public static final String FROM_UNIXTIME = "FROM_UNIXTIME(%s,'%s')";
+
+    public static final String CAST = "CAST(%s AS %s)";
+
+    public static final String DEFAULT_DATE_FORMAT = "%Y-%m-%d %H:%i:%S";
+
+    public static final String DEFAULT_INT_FORMAT = "DECIMAL(20,0)";
+
+    public static final String DEFAULT_FLOAT_FORMAT = "DECIMAL(20,2)";
+
+    public static final String WHERE_VALUE_NULL = "(null,'')";
+
+    public static final String WHERE_VALUE_VALUE = "'%s'";
+
+    public static final String AGG_COUNT = "COUNT(*)";
+
+    public static final String AGG_FIELD = "%s(%s)";
+
+    public static final String WHERE_BETWEEN = "'%s' AND '%s'";
+
+    public static final String BRACKETS = "(%s)";
+}

backend/src/main/resources/sql/sqlTemplate.stg

+querySql(groups, aggregators, filters, orders, table)
+::=<<
+SELECT
+<if(!groups && !aggregators)>
+    *
+<endif>
+<if(groups)>
+    <groups:{group|<if(group)><group.fieldName> AS <group.fieldAlias><endif>}; separator=",\n">
+<endif>
+    <if(groups && aggregators)>,<endif>
+<if(aggregators)>
+    <aggregators:{agg|<if(agg)><agg.fieldName> AS <agg.fieldAlias><endif>}; separator=",\n">
+<endif>
+FROM
+    <table.tableName> AS <table.tableAlias>
+<if(filters)>
+WHERE
+    <filters:{filter|<if(filter)><filter.whereField> <filter.whereTermAndValue><endif>}; separator="\nAND ">
+<endif>
+<if(groups)>
+GROUP BY
+    <groups:{group|<if(group)><group.fieldName><endif>}; separator=",\n">
+<endif>
+<if(orders)>
+ORDER BY
+    <orders:{order|<if(order)><order.orderAlias> <order.orderDirection><endif>}; separator=",\n">
+<endif>
+>>
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