[Optimization][Style] Configure global checkstyle validation. (#953)

* Configure global checkstyle validation.

* Configure global checkstyle validation.

.github/workflows/backend.yaml

@@ -53,7 +53,7 @@ jobs:
             ${{ runner.os }}-maven-
       - name: Check Style
         run: |
-          ./mvnw -T 2C -B checkstyle:check --no-snapshot-updates
+          ./mvnw -T 2C -B --no-snapshot-updates clean checkstyle:check
       - name: Build and Package
         run: |
           ./mvnw -B clean install \

dlink-admin/src/main/java/com/dlink/controller/FragmentVariableController.java

@@ -19,19 +19,26 @@
 
 package com.dlink.controller;
 
-
 import com.dlink.common.result.ProTableResult;
 import com.dlink.common.result.Result;
 import com.dlink.model.FragmentVariable;
 import com.dlink.service.FragmentVariableService;
-import com.fasterxml.jackson.databind.JsonNode;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.*;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.fasterxml.jackson.databind.JsonNode;
+
+import lombok.extern.slf4j.Slf4j;
+
 /**
  * FragmentVariableController
  *

dlink-admin/src/main/java/com/dlink/dto/StudioExecuteDTO.java

@@ -19,11 +19,12 @@
 
 package com.dlink.dto;
 
+import com.dlink.assertion.Asserts;
+import com.dlink.job.JobConfig;
+
 import java.util.HashMap;
 import java.util.Map;
 
-import com.dlink.assertion.Asserts;
-import com.dlink.job.JobConfig;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;

dlink-admin/src/main/java/com/dlink/mapper/FragmentVariableMapper.java

@@ -21,6 +21,7 @@ package com.dlink.mapper;
 
 import com.dlink.db.mapper.SuperMapper;
 import com.dlink.model.FragmentVariable;
+
 import org.apache.ibatis.annotations.Mapper;
 
 /**

dlink-admin/src/main/java/com/dlink/model/FragmentVariable.java

@@ -19,10 +19,12 @@
 
 package com.dlink.model;
 
+import com.dlink.db.model.SuperEntity;
+
 import com.baomidou.mybatisplus.annotation.FieldFill;
 import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.dlink.db.model.SuperEntity;
+
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.EqualsAndHashCode;

dlink-admin/src/main/java/com/dlink/service/FragmentVariableService.java

@@ -19,13 +19,12 @@
 
 package com.dlink.service;
 
+import com.dlink.db.service.ISuperService;
+import com.dlink.model.FragmentVariable;
 
 import java.util.List;
 import java.util.Map;
 
-import com.dlink.db.service.ISuperService;
-import com.dlink.model.FragmentVariable;
-
 /**
  * FragmentVariableService
  *

dlink-admin/src/main/java/com/dlink/service/impl/FragmentVariableServiceImpl.java

@@ -19,6 +19,11 @@
 
 package com.dlink.service.impl;
 
+import com.dlink.db.service.impl.SuperServiceImpl;
+import com.dlink.mapper.FragmentVariableMapper;
+import com.dlink.model.FragmentVariable;
+import com.dlink.service.FragmentVariableService;
+
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -26,10 +31,6 @@ import java.util.Map;
 import org.springframework.stereotype.Service;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
-import com.dlink.db.service.impl.SuperServiceImpl;
-import com.dlink.mapper.FragmentVariableMapper;
-import com.dlink.model.FragmentVariable;
-import com.dlink.service.FragmentVariableService;
 
 
 /**

dlink-admin/src/main/java/com/dlink/service/impl/JobInstanceServiceImpl.java

@@ -119,6 +119,8 @@ public class JobInstanceServiceImpl extends SuperServiceImpl<JobInstanceMapper,
                     break;
                 case UNKNOWN:
                     jobInstanceStatus.setUnknown(counts);
+                    break;
+                default:
             }
         }
         jobInstanceStatus.setAll(total);

dlink-admin/src/main/java/com/dlink/service/impl/StudioServiceImpl.java

@@ -19,21 +19,6 @@
 
 package com.dlink.service.impl;
 
-import java.time.LocalDateTime;
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.node.ObjectNode;
-
 import com.dlink.api.FlinkAPI;
 import com.dlink.assertion.Asserts;
 import com.dlink.config.Dialect;
@@ -80,6 +65,22 @@ import com.dlink.session.SessionPool;
 import com.dlink.sql.FlinkQuery;
 import com.dlink.utils.RunTimeUtil;
 
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
 /**
  * StudioServiceImpl
  *
@@ -222,15 +223,19 @@ public class StudioServiceImpl implements StudioService {
     
     private List<SqlExplainResult> explainCommonSql(StudioExecuteDTO studioExecuteDTO) {
         if (Asserts.isNull(studioExecuteDTO.getDatabaseId())) {
-            return new ArrayList<SqlExplainResult>() {{
-                add(SqlExplainResult.fail(studioExecuteDTO.getStatement(), "请指定数据源"));
-            }};
+            return new ArrayList<SqlExplainResult>() {
+                {
+                    add(SqlExplainResult.fail(studioExecuteDTO.getStatement(), "请指定数据源"));
+                }
+            };
         } else {
             DataBase dataBase = dataBaseService.getById(studioExecuteDTO.getDatabaseId());
             if (Asserts.isNull(dataBase)) {
-                return new ArrayList<SqlExplainResult>() {{
-                    add(SqlExplainResult.fail(studioExecuteDTO.getStatement(), "数据源不存在"));
-                }};
+                return new ArrayList<SqlExplainResult>() {
+                    {
+                        add(SqlExplainResult.fail(studioExecuteDTO.getStatement(), "数据源不存在"));
+                    }
+                };
             }
             Driver driver = Driver.build(dataBase.getDriverConfig());
             List<SqlExplainResult> sqlExplainResults = driver.explain(studioExecuteDTO.getStatement());
@@ -314,9 +319,9 @@ public class StudioServiceImpl implements StudioService {
                 return null;
             }
             if (studioCADTO.getDialect().equalsIgnoreCase("doris")) {
-                return com.dlink.explainer.sqlLineage.LineageBuilder.getSqlLineage(studioCADTO.getStatement(), "mysql", dataBase.getDriverConfig());
+                return com.dlink.explainer.sqllineage.LineageBuilder.getSqlLineage(studioCADTO.getStatement(), "mysql", dataBase.getDriverConfig());
             } else {
-                return com.dlink.explainer.sqlLineage.LineageBuilder.getSqlLineage(studioCADTO.getStatement(), studioCADTO.getDialect().toLowerCase(), dataBase.getDriverConfig());
+                return com.dlink.explainer.sqllineage.LineageBuilder.getSqlLineage(studioCADTO.getStatement(), studioCADTO.getDialect().toLowerCase(), dataBase.getDriverConfig());
             }
         } else {
             addFlinkSQLEnv(studioCADTO);

dlink-app/dlink-app-1.15/src/main/java/com/dlink/app/MainApp.java

@@ -19,15 +19,15 @@
 
 package com.dlink.app;
 
-import java.io.IOException;
-import java.util.Map;
-
 import com.dlink.app.db.DBConfig;
 import com.dlink.app.flinksql.Submiter;
 import com.dlink.assertion.Asserts;
 import com.dlink.constant.FlinkParamConstant;
 import com.dlink.utils.FlinkBaseUtil;
 
+import java.io.IOException;
+import java.util.Map;
+
 /**
  * MainApp
  *

dlink-app/dlink-app-base/src/main/java/com/dlink/app/flinksql/Submiter.java

@@ -28,6 +28,7 @@ import com.dlink.executor.ExecutorSetting;
 import com.dlink.interceptor.FlinkInterceptor;
 import com.dlink.parser.SqlType;
 import com.dlink.trans.Operations;
+
 import org.apache.flink.configuration.CheckpointingOptions;
 
 import java.io.IOException;
@@ -73,9 +74,7 @@ public class Submiter {
         try {
             statement = DBUtil.getOneByID(getQuerySQL(id), config);
         } catch (IOException | SQLException e) {
-            logger.error("{} --> 获取 FlinkSQL 配置异常，ID 为 {}, \n" +
-                    "连接信息为：{} \n" +
-                    "异常信息为：{} ", LocalDateTime.now(), id, config.toString(), e.getMessage(), e);
+            logger.error("{} --> 获取 FlinkSQL 配置异常，ID 为 {}, 连接信息为：{} ,异常信息为：{} ", LocalDateTime.now(), id, config.toString(), e.getMessage(), e);
         }
         return statement;
     }
@@ -85,9 +84,7 @@ public class Submiter {
         try {
             task = DBUtil.getMapByID(getTaskInfo(id), config);
         } catch (IOException | SQLException e) {
-            logger.error("{} --> 获取 FlinkSQL 配置异常，ID 为 {}, \n" +
-                    "连接信息为：{} \n" +
-                    "异常信息为：{} ", LocalDateTime.now(), id, config.toString(), e.getMessage(), e);
+            logger.error("{} --> 获取 FlinkSQL 配置异常，ID 为 {}, 连接信息为：{} ,异常信息为：{} ", LocalDateTime.now(), id, config.toString(), e.getMessage(), e);
         }
         return task;
     }

dlink-client/dlink-client-1.11/src/main/java/com/dlink/cdc/AbstractSinkBuilder.java

@@ -190,6 +190,7 @@ public abstract class AbstractSinkBuilder {
                                 }
                                 out.collect(uagenericRowData);
                                 break;
+                            default:
                         }
                     } catch (Exception e) {
                         logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-1.11/src/main/java/com/dlink/cdc/sql/SQLSinkBuilder.java

@@ -141,6 +141,7 @@ public class SQLSinkBuilder extends AbstractSinkBuilder implements SinkBuilder,
                                     }
                                     out.collect(uarow);
                                     break;
+                                default:
                             }
                         } catch (Exception e) {
                             logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-1.12/src/main/java/com/dlink/cdc/AbstractSinkBuilder.java

@@ -190,6 +190,7 @@ public abstract class AbstractSinkBuilder {
                                 }
                                 out.collect(uagenericRowData);
                                 break;
+                            default:
                         }
                     } catch (Exception e) {
                         logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-1.12/src/main/java/com/dlink/cdc/mysql/MysqlCDCBuilder.java

@@ -104,6 +104,7 @@ public class MysqlCDCBuilder extends AbstractCDCBuilder implements CDCBuilder {
                 case "latest-offset":
                     sourceBuilder.startupOptions(StartupOptions.latest());
                     break;
+                default:
             }
         } else {
             sourceBuilder.startupOptions(StartupOptions.latest());

dlink-client/dlink-client-1.12/src/main/java/com/dlink/cdc/sql/SQLSinkBuilder.java

@@ -141,6 +141,7 @@ public class SQLSinkBuilder extends AbstractSinkBuilder implements SinkBuilder,
                                     }
                                     out.collect(uarow);
                                     break;
+                                default:
                             }
                         } catch (Exception e) {
                             logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-1.13/src/main/java/com/dlink/cdc/AbstractSinkBuilder.java

@@ -190,6 +190,7 @@ public abstract class AbstractSinkBuilder {
                                 }
                                 out.collect(uagenericRowData);
                                 break;
+                            default:
                         }
                     } catch (Exception e) {
                         logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-1.13/src/main/java/com/dlink/cdc/kafka/KafkaSinkJsonBuilder.java

@@ -123,6 +123,7 @@ public class KafkaSinkJsonBuilder extends AbstractSinkBuilder implements SinkBui
                                             before = (Map) value.get("before");
                                             convertAttr(columnNameList, columnTypeList, before, value.get("op").toString(), 1, schemaName, tableName, tsMs);
                                             break;
+                                        default:
                                     }
                                 } catch (Exception e) {
                                     logger.error("SchameTable: {} - Exception:", e);

dlink-client/dlink-client-1.13/src/main/java/com/dlink/cdc/mysql/MysqlCDCBuilder.java

@@ -132,6 +132,7 @@ public class MysqlCDCBuilder extends AbstractCDCBuilder implements CDCBuilder {
                 case "latest-offset":
                     sourceBuilder.startupOptions(StartupOptions.latest());
                     break;
+                default:
             }
         } else {
             sourceBuilder.startupOptions(StartupOptions.latest());

dlink-client/dlink-client-1.13/src/main/java/com/dlink/cdc/oracle/OracleCDCBuilder.java

@@ -103,6 +103,7 @@ public class OracleCDCBuilder extends AbstractCDCBuilder implements CDCBuilder {
                 case "latest-offset":
                     sourceBuilder.startupOptions(StartupOptions.latest());
                     break;
+                default:
             }
         } else {
             sourceBuilder.startupOptions(StartupOptions.latest());

dlink-client/dlink-client-1.13/src/main/java/com/dlink/cdc/sql/SQLSinkBuilder.java

@@ -141,6 +141,7 @@ public class SQLSinkBuilder extends AbstractSinkBuilder implements SinkBuilder,
                                     }
                                     out.collect(uarow);
                                     break;
+                                default:
                             }
                         } catch (Exception e) {
                             logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-1.14/src/main/java/com/dlink/cdc/AbstractSinkBuilder.java

@@ -190,6 +190,7 @@ public abstract class AbstractSinkBuilder {
                                 }
                                 out.collect(uagenericRowData);
                                 break;
+                            default:
                         }
                     } catch (Exception e) {
                         logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-1.14/src/main/java/com/dlink/cdc/CDCBuilderFactory.java

@@ -35,10 +35,10 @@ import com.dlink.model.FlinkCDCConfig;
  **/
 public class CDCBuilderFactory {
     private static CDCBuilder[] cdcBuilders = {
-            new MysqlCDCBuilder(),
-            new OracleCDCBuilder(),
-            new SqlServerCDCBuilder(),
-            new PostgresCDCBuilder()
+        new MysqlCDCBuilder(),
+        new OracleCDCBuilder(),
+        new SqlServerCDCBuilder(),
+        new PostgresCDCBuilder()
     };
 
     public static CDCBuilder buildCDCBuilder(FlinkCDCConfig config) {

dlink-client/dlink-client-1.14/src/main/java/com/dlink/cdc/kafka/KafkaSinkJsonBuilder.java

@@ -121,6 +121,7 @@ public class KafkaSinkJsonBuilder extends AbstractSinkBuilder implements SinkBui
                                             before = (Map) value.get("before");
                                             convertAttr(columnNameList, columnTypeList, before,value.get("op").toString(), 1,schemaName, tableName, tsMs);
                                             break;
+                                        default:
                                     }
                                 } catch (Exception e) {
                                     logger.error("SchameTable: {} - Exception:", e);

dlink-client/dlink-client-1.14/src/main/java/com/dlink/cdc/mysql/MysqlCDCBuilder.java

@@ -132,6 +132,7 @@ public class MysqlCDCBuilder extends AbstractCDCBuilder implements CDCBuilder {
                 case "latest-offset":
                     sourceBuilder.startupOptions(StartupOptions.latest());
                     break;
+                default:
             }
         } else {
             sourceBuilder.startupOptions(StartupOptions.latest());

dlink-client/dlink-client-1.14/src/main/java/com/dlink/cdc/oracle/OracleCDCBuilder.java

@@ -103,6 +103,7 @@ public class OracleCDCBuilder extends AbstractCDCBuilder implements CDCBuilder {
                 case "latest-offset":
                     sourceBuilder.startupOptions(StartupOptions.latest());
                     break;
+                default:
             }
         } else {
             sourceBuilder.startupOptions(StartupOptions.latest());

dlink-client/dlink-client-1.14/src/main/java/com/dlink/cdc/postgres/PostgresCDCBuilder.java

@@ -17,7 +17,6 @@
  *
  */
 
-
 package com.dlink.cdc.postgres;
 
 import com.dlink.assertion.Asserts;
@@ -26,8 +25,7 @@ import com.dlink.cdc.CDCBuilder;
 import com.dlink.constant.ClientConstant;
 import com.dlink.constant.FlinkParamConstant;
 import com.dlink.model.FlinkCDCConfig;
-import com.ververica.cdc.connectors.postgres.PostgreSQLSource;
-import com.ververica.cdc.debezium.JsonDebeziumDeserializationSchema;
+
 import org.apache.flink.streaming.api.datastream.DataStreamSource;
 import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
 
@@ -36,6 +34,9 @@ import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 
+import com.ververica.cdc.connectors.postgres.PostgreSQLSource;
+import com.ververica.cdc.debezium.JsonDebeziumDeserializationSchema;
+
 /**
  * postgresCDCBuilder
  *
@@ -44,8 +45,8 @@ import java.util.Properties;
  **/
 public class PostgresCDCBuilder extends AbstractCDCBuilder implements CDCBuilder {
 
-    private final static String KEY_WORD = "postgres-cdc";
-    private final static String METADATA_TYPE = "PostgreSql";
+    private static final String KEY_WORD = "postgres-cdc";
+    private static final String METADATA_TYPE = "PostgreSql";
 
     public PostgresCDCBuilder() {
     }

dlink-client/dlink-client-1.14/src/main/java/com/dlink/cdc/sql/SQLSinkBuilder.java

@@ -141,6 +141,7 @@ public class SQLSinkBuilder extends AbstractSinkBuilder implements SinkBuilder,
                                     }
                                     out.collect(uarow);
                                     break;
+                                default:
                             }
                         } catch (Exception e) {
                             logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-1.14/src/main/java/com/dlink/cdc/sqlserver/SqlServerCDCBuilder.java

@@ -6,13 +6,9 @@ import com.dlink.cdc.CDCBuilder;
 import com.dlink.constant.ClientConstant;
 import com.dlink.constant.FlinkParamConstant;
 import com.dlink.model.FlinkCDCConfig;
-import com.ververica.cdc.connectors.sqlserver.SqlServerSource;
-import com.ververica.cdc.connectors.sqlserver.table.StartupOptions;
-import com.ververica.cdc.debezium.JsonDebeziumDeserializationSchema;
+
 import org.apache.flink.streaming.api.datastream.DataStreamSource;
 import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -21,17 +17,22 @@ import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.ververica.cdc.connectors.sqlserver.SqlServerSource;
+import com.ververica.cdc.connectors.sqlserver.table.StartupOptions;
+
 /**
  * sql server CDC
  *
  * @author 郑文豪
- * @date 2022/8/12 18:00
  */
 public class SqlServerCDCBuilder extends AbstractCDCBuilder implements CDCBuilder {
     protected static final Logger logger = LoggerFactory.getLogger(SqlServerCDCBuilder.class);
 
-    private final static String KEY_WORD = "sqlserver-cdc";
-    private final static String METADATA_TYPE = "SqlServer";
+    private static final String KEY_WORD = "sqlserver-cdc";
+    private static final String METADATA_TYPE = "SqlServer";
 
     public SqlServerCDCBuilder() {
     }
@@ -55,8 +56,8 @@ public class SqlServerCDCBuilder extends AbstractCDCBuilder implements CDCBuilde
         String database = config.getDatabase();
         Properties debeziumProperties = new Properties();
         // 为部分转换添加默认值
-//        debeziumProperties.setProperty("bigint.unsigned.handling.mode", "long");
-//        debeziumProperties.setProperty("decimal.handling.mode", "string");
+        //debeziumProperties.setProperty("bigint.unsigned.handling.mode", "long");
+        //debeziumProperties.setProperty("decimal.handling.mode", "string");
         for (Map.Entry<String, String> entry : config.getDebezium().entrySet()) {
             if (Asserts.isNotNullString(entry.getKey()) && Asserts.isNotNullString(entry.getValue())) {
                 debeziumProperties.setProperty(entry.getKey(), entry.getValue());
@@ -86,7 +87,7 @@ public class SqlServerCDCBuilder extends AbstractCDCBuilder implements CDCBuilde
         } else {
             sourceBuilder.tableList(new String[0]);
         }
-//        sourceBuilder.deserializer(new JsonDebeziumDeserializationSchema());
+        //sourceBuilder.deserializer(new JsonDebeziumDeserializationSchema());
         sourceBuilder.deserializer(new SqlServerJsonDebeziumDeserializationSchema());
         if (Asserts.isNotNullString(config.getStartupMode())) {
             switch (config.getStartupMode().toLowerCase()) {
@@ -96,6 +97,7 @@ public class SqlServerCDCBuilder extends AbstractCDCBuilder implements CDCBuilde
                 case "latest-offset":
                     sourceBuilder.startupOptions(StartupOptions.latest());
                     break;
+                default:
             }
         } else {
             sourceBuilder.startupOptions(StartupOptions.latest());

dlink-client/dlink-client-1.14/src/main/java/com/dlink/cdc/sqlserver/SqlServerJsonDebeziumDeserializationSchema.java

 package com.dlink.cdc.sqlserver;
 
-import com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.json.JsonConverter;
-import com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.source.SourceRecord;
-import com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.storage.ConverterType;
-import com.ververica.cdc.debezium.DebeziumDeserializationSchema;
 import org.apache.flink.api.common.typeinfo.BasicTypeInfo;
 import org.apache.flink.api.common.typeinfo.TypeInformation;
 import org.apache.flink.util.Collector;
@@ -12,12 +8,16 @@ import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.Map;
 
+import com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.json.JsonConverter;
+import com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.source.SourceRecord;
+import com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.storage.ConverterType;
+import com.ververica.cdc.debezium.DebeziumDeserializationSchema;
+
 /**
  * @version 1.0
  * @className: com.dlink.cdc.mysql.MysqlJsonDebeziumDeserializationSchema
  * @Description:
  * @author: jack zhong
- * @date 8/2/221:43 PM
  */
 public class SqlServerJsonDebeziumDeserializationSchema implements DebeziumDeserializationSchema<String> {
     private static final long serialVersionUID = 1L;

dlink-client/dlink-client-1.14/src/main/java/com/dlink/executor/CustomTableEnvironmentImpl.java

@@ -19,6 +19,12 @@
 
 package com.dlink.executor;
 
+import com.dlink.assertion.Asserts;
+import com.dlink.model.LineageRel;
+import com.dlink.result.SqlExplainResult;
+import com.dlink.utils.FlinkStreamProgramWithoutPhysical;
+import com.dlink.utils.LineageContext;
+
 import org.apache.flink.api.common.RuntimeExecutionMode;
 import org.apache.flink.api.common.typeinfo.TypeInformation;
 import org.apache.flink.api.dag.Transformation;
@@ -70,11 +76,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 
-import com.dlink.assertion.Asserts;
-import com.dlink.model.LineageRel;
-import com.dlink.result.SqlExplainResult;
-import com.dlink.utils.FlinkStreamProgramWithoutPhysical;
-import com.dlink.utils.LineageContext;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ObjectNode;

dlink-client/dlink-client-1.14/src/main/java/com/dlink/utils/LineageContext.java

@@ -19,6 +19,8 @@
 
 package com.dlink.utils;
 
+import com.dlink.model.LineageRel;
+
 import org.apache.calcite.plan.RelOptTable;
 import org.apache.calcite.rel.RelNode;
 import org.apache.calcite.rel.core.Snapshot;
@@ -34,7 +36,6 @@ import org.apache.flink.table.catalog.CatalogManager;
 import org.apache.flink.table.catalog.FunctionCatalog;
 import org.apache.flink.table.operations.CatalogSinkModifyOperation;
 import org.apache.flink.table.operations.Operation;
-import org.apache.flink.table.planner.calcite.FlinkContext;
 import org.apache.flink.table.planner.calcite.FlinkRelBuilder;
 import org.apache.flink.table.planner.calcite.SqlExprToRexConverterFactory;
 import org.apache.flink.table.planner.delegation.PlannerBase;
@@ -47,8 +48,6 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
 
-import com.dlink.model.LineageRel;
-
 import javassist.ClassPool;
 import javassist.CtClass;
 import javassist.CtMethod;
@@ -188,10 +187,10 @@ public class LineageContext {
                 return MiniBatchInterval.NONE;
             }
 
-
             private PlannerBase getPlanner() {
                 return (PlannerBase) tableEnv.getPlanner();
             }
+
         });
     }
 

dlink-client/dlink-client-1.15/src/main/java/com/dlink/cdc/AbstractSinkBuilder.java

@@ -190,6 +190,7 @@ public abstract class AbstractSinkBuilder {
                                 }
                                 out.collect(uagenericRowData);
                                 break;
+                            default:
                         }
                     } catch (Exception e) {
                         logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-1.15/src/main/java/com/dlink/cdc/kafka/KafkaSinkJsonBuilder.java

@@ -121,6 +121,7 @@ public class KafkaSinkJsonBuilder extends AbstractSinkBuilder implements SinkBui
                                             before = (Map) value.get("before");
                                             convertAttr(columnNameList, columnTypeList, before, value.get("op").toString(), 1, schemaName, tableName, tsMs);
                                             break;
+                                        default:
                                     }
                                 } catch (Exception e) {
                                     logger.error("SchameTable: {} - Exception:", e);

dlink-client/dlink-client-1.15/src/main/java/com/dlink/cdc/mysql/MysqlCDCBuilder.java

@@ -132,6 +132,7 @@ public class MysqlCDCBuilder extends AbstractCDCBuilder implements CDCBuilder {
                 case "latest-offset":
                     sourceBuilder.startupOptions(StartupOptions.latest());
                     break;
+                default:
             }
         } else {
             sourceBuilder.startupOptions(StartupOptions.latest());

dlink-client/dlink-client-1.15/src/main/java/com/dlink/cdc/oracle/OracleCDCBuilder.java

@@ -103,6 +103,7 @@ public class OracleCDCBuilder extends AbstractCDCBuilder implements CDCBuilder {
                 case "latest-offset":
                     sourceBuilder.startupOptions(StartupOptions.latest());
                     break;
+                default:
             }
         } else {
             sourceBuilder.startupOptions(StartupOptions.latest());

dlink-client/dlink-client-1.15/src/main/java/com/dlink/cdc/sql/SQLSinkBuilder.java

@@ -141,6 +141,7 @@ public class SQLSinkBuilder extends AbstractSinkBuilder implements SinkBuilder,
                                     }
                                     out.collect(uarow);
                                     break;
+                                default:
                             }
                         } catch (Exception e) {
                             logger.error("SchameTable: {} - Row: {} - Exception: {}", schemaTableName, JSONUtil.toJsonString(value), e.getCause().getMessage());

dlink-client/dlink-client-base/src/main/java/com/dlink/model/LineageRel.java

@@ -43,7 +43,7 @@ public class LineageRel {
 
     private String targetColumn;
 
-    private final static String DELIMITER = ".";
+    private static final String DELIMITER = ".";
 
     public LineageRel(String sourceCatalog, String sourceDatabase, String sourceTable, String sourceColumn, String targetCatalog, String targetDatabase, String targetTable,
                       String targetColumn) {

dlink-common/src/main/java/com/dlink/model/SystemConfiguration.java

@@ -19,11 +19,12 @@
 
 package com.dlink.model;
 
+import com.dlink.assertion.Asserts;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
-import com.dlink.assertion.Asserts;
 import com.fasterxml.jackson.databind.JsonNode;
 
 /**
@@ -40,14 +41,16 @@ public class SystemConfiguration {
         return systemConfiguration;
     }
 
-    private static final List<Configuration> CONFIGURATION_LIST = new ArrayList<Configuration>() {{
-        add(systemConfiguration.sqlSubmitJarPath);
-        add(systemConfiguration.sqlSubmitJarParas);
-        add(systemConfiguration.sqlSubmitJarMainAppClass);
-        add(systemConfiguration.useRestAPI);
-        add(systemConfiguration.useLogicalPlan);
-        add(systemConfiguration.sqlSeparator);
-    }};
+    private static final List<Configuration> CONFIGURATION_LIST = new ArrayList<Configuration>() {
+        {
+            add(systemConfiguration.sqlSubmitJarPath);
+            add(systemConfiguration.sqlSubmitJarParas);
+            add(systemConfiguration.sqlSubmitJarMainAppClass);
+            add(systemConfiguration.useRestAPI);
+            add(systemConfiguration.useLogicalPlan);
+            add(systemConfiguration.sqlSeparator);
+        }
+    };
 
     private Configuration sqlSubmitJarPath = new Configuration(
         "sqlSubmitJarPath",

dlink-common/src/main/java/com/dlink/utils/JSONUtil.java

@@ -26,6 +26,7 @@ import static com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKN
 import static com.fasterxml.jackson.databind.DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_AS_NULL;
 import static com.fasterxml.jackson.databind.MapperFeature.REQUIRE_SETTERS_FOR_GETTERS;
 
+import com.dlink.assertion.Asserts;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -50,8 +51,6 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.fasterxml.jackson.databind.node.TextNode;
 import com.fasterxml.jackson.databind.type.CollectionType;
 
-import com.dlink.assertion.Asserts;
-
 /**
  * JSONUtil
  *

dlink-connectors/dlink-connector-phoenix-1.13/src/main/java/org/apache/flink/connector/phoenix/internal/JdbcBatchingOutputFormat.java

@@ -57,8 +57,8 @@ import org.slf4j.LoggerFactory;
 /** A JDBC outputFormat that supports batching records before writing records to database. */
 @Internal
 public class JdbcBatchingOutputFormat<
-                In, JdbcIn, JdbcExec extends JdbcBatchStatementExecutor<JdbcIn>>
-        extends AbstractJdbcOutputFormat<In> {
+        I, J, E extends JdbcBatchStatementExecutor<J>>
+        extends AbstractJdbcOutputFormat<I> {
 
     /**
      * An interface to extract a value from given argument.
@@ -85,10 +85,10 @@ public class JdbcBatchingOutputFormat<
     private static final Logger LOG = LoggerFactory.getLogger(JdbcBatchingOutputFormat.class);
 
     private final JdbcExecutionOptions executionOptions;
-    private final StatementExecutorFactory<JdbcExec> statementExecutorFactory;
-    private final RecordExtractor<In, JdbcIn> jdbcRecordExtractor;
+    private final StatementExecutorFactory<E> statementExecutorFactory;
+    private final RecordExtractor<I, J> jdbcRecordExtractor;
 
-    private transient JdbcExec jdbcStatementExecutor;
+    private transient E jdbcStatementExecutor;
     private transient int batchCount = 0;
     private transient volatile boolean closed = false;
 
@@ -100,8 +100,8 @@ public class JdbcBatchingOutputFormat<
     public JdbcBatchingOutputFormat(
             @Nonnull JdbcConnectionProvider connectionProvider,
             @Nonnull JdbcExecutionOptions executionOptions,
-            @Nonnull StatementExecutorFactory<JdbcExec> statementExecutorFactory,
-            @Nonnull RecordExtractor<In, JdbcIn> recordExtractor) {
+            @Nonnull StatementExecutorFactory<E> statementExecutorFactory,
+            @Nonnull RecordExtractor<I, J> recordExtractor) {
         super(connectionProvider);
         this.executionOptions = checkNotNull(executionOptions);
         this.statementExecutorFactory = checkNotNull(statementExecutorFactory);
@@ -150,9 +150,9 @@ public class JdbcBatchingOutputFormat<
 
     }
 
-    private JdbcExec createAndOpenStatementExecutor(
-            StatementExecutorFactory<JdbcExec> statementExecutorFactory) throws IOException {
-        JdbcExec exec = statementExecutorFactory.apply(getRuntimeContext());
+    private E createAndOpenStatementExecutor(
+            StatementExecutorFactory<E> statementExecutorFactory) throws IOException {
+        E exec = statementExecutorFactory.apply(getRuntimeContext());
         try {
             exec.prepareStatements(connectionProvider.getConnection());
         } catch (SQLException e) {
@@ -168,7 +168,7 @@ public class JdbcBatchingOutputFormat<
     }
 
     @Override
-    public final synchronized void writeRecord(In record) throws IOException {
+    public final synchronized void writeRecord(I record) throws IOException {
         checkFlushException();
 
         try {
@@ -184,7 +184,7 @@ public class JdbcBatchingOutputFormat<
         }
     }
 
-    protected void addToBatch(In original, JdbcIn extracted) throws SQLException {
+    protected void addToBatch(I original, J extracted) throws SQLException {
         jdbcStatementExecutor.addToBatch(extracted);
     }
 

dlink-connectors/dlink-connector-phoenix-1.14/src/main/java/org/apache/flink/connector/phoenix/internal/JdbcBatchingOutputFormat.java

@@ -57,8 +57,8 @@ import org.slf4j.LoggerFactory;
 /** A JDBC outputFormat that supports batching records before writing records to database. */
 @Internal
 public class JdbcBatchingOutputFormat<
-                In, JdbcIn, JdbcExec extends JdbcBatchStatementExecutor<JdbcIn>>
-        extends AbstractJdbcOutputFormat<In> {
+        I, J, E extends JdbcBatchStatementExecutor<J>>
+        extends AbstractJdbcOutputFormat<I> {
 
     /**
      * An interface to extract a value from given argument.
@@ -85,10 +85,10 @@ public class JdbcBatchingOutputFormat<
     private static final Logger LOG = LoggerFactory.getLogger(JdbcBatchingOutputFormat.class);
 
     private final JdbcExecutionOptions executionOptions;
-    private final StatementExecutorFactory<JdbcExec> statementExecutorFactory;
-    private final RecordExtractor<In, JdbcIn> jdbcRecordExtractor;
+    private final StatementExecutorFactory<E> statementExecutorFactory;
+    private final RecordExtractor<I, J> jdbcRecordExtractor;
 
-    private transient JdbcExec jdbcStatementExecutor;
+    private transient E jdbcStatementExecutor;
     private transient int batchCount = 0;
     private transient volatile boolean closed = false;
 
@@ -100,8 +100,8 @@ public class JdbcBatchingOutputFormat<
     public JdbcBatchingOutputFormat(
             @Nonnull JdbcConnectionProvider connectionProvider,
             @Nonnull JdbcExecutionOptions executionOptions,
-            @Nonnull StatementExecutorFactory<JdbcExec> statementExecutorFactory,
-            @Nonnull RecordExtractor<In, JdbcIn> recordExtractor) {
+            @Nonnull StatementExecutorFactory<E> statementExecutorFactory,
+            @Nonnull RecordExtractor<I, J> recordExtractor) {
         super(connectionProvider);
         this.executionOptions = checkNotNull(executionOptions);
         this.statementExecutorFactory = checkNotNull(statementExecutorFactory);
@@ -150,9 +150,9 @@ public class JdbcBatchingOutputFormat<
 
     }
 
-    private JdbcExec createAndOpenStatementExecutor(
-            StatementExecutorFactory<JdbcExec> statementExecutorFactory) throws IOException {
-        JdbcExec exec = statementExecutorFactory.apply(getRuntimeContext());
+    private E createAndOpenStatementExecutor(
+            StatementExecutorFactory<E> statementExecutorFactory) throws IOException {
+        E exec = statementExecutorFactory.apply(getRuntimeContext());
         try {
             exec.prepareStatements(connectionProvider.getConnection());
         } catch (SQLException e) {
@@ -168,7 +168,7 @@ public class JdbcBatchingOutputFormat<
     }
 
     @Override
-    public final synchronized void writeRecord(In record) throws IOException {
+    public final synchronized void writeRecord(I record) throws IOException {
         checkFlushException();
 
         try {
@@ -184,7 +184,7 @@ public class JdbcBatchingOutputFormat<
         }
     }
 
-    protected void addToBatch(In original, JdbcIn extracted) throws SQLException {
+    protected void addToBatch(I original, J extracted) throws SQLException {
         jdbcStatementExecutor.addToBatch(extracted);
     }
 

dlink-core/src/main/java/com/dlink/api/FlinkAPI.java

@@ -133,6 +133,8 @@ public class FlinkAPI {
                 //paramMap.put("target-directory","hdfs:///flink13/ss1");
                 paramType = FlinkRestAPIConstant.SAVEPOINTS;
                 jobInfo.setStatus(JobInfo.JobStatus.RUN);
+                break;
+            default:
         }
         ObjectMapper mapper = new ObjectMapper();
         JsonNode json = null;

dlink-core/src/main/java/com/dlink/explainer/lineage/LineageBuilder.java

@@ -19,6 +19,12 @@
 
 package com.dlink.explainer.lineage;
 
+import com.dlink.explainer.ca.ColumnCAResult;
+import com.dlink.explainer.ca.NodeRel;
+import com.dlink.explainer.ca.TableCA;
+import com.dlink.model.LineageRel;
+import com.dlink.plus.FlinkSqlPlus;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -26,12 +32,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
-import com.dlink.explainer.ca.ColumnCAResult;
-import com.dlink.explainer.ca.NodeRel;
-import com.dlink.explainer.ca.TableCA;
-import com.dlink.model.LineageRel;
-import com.dlink.plus.FlinkSqlPlus;
-
 /**
  * LineageBuilder
  *

dlink-core/src/main/java/com/dlink/explainer/lineage/LineageRelation.java

@@ -109,8 +109,10 @@ public class LineageRelation {
             return false;
         }
         LineageRelation that = (LineageRelation) o;
-        return Objects.equals(srcTableId, that.srcTableId) && Objects.equals(tgtTableId, that.tgtTableId) && Objects.equals(srcTableColName, that.srcTableColName) &&
-            Objects.equals(tgtTableColName, that.tgtTableColName);
+        return Objects.equals(srcTableId, that.srcTableId)
+                && Objects.equals(tgtTableId, that.tgtTableId)
+                && Objects.equals(srcTableColName, that.srcTableColName)
+                && Objects.equals(tgtTableColName, that.tgtTableColName);
     }
 
     @Override

dlink-core/src/main/java/com/dlink/explainer/lineage/LineageTable.java

@@ -19,11 +19,11 @@
 
 package com.dlink.explainer.lineage;
 
+import com.dlink.explainer.ca.TableCA;
+
 import java.util.ArrayList;
 import java.util.List;
 
-import com.dlink.explainer.ca.TableCA;
-
 /**
  * LineageTable
  *

dlink-core/src/main/java/com/dlink/explainer/sqlLineage/LineageBuilder.java → dlink-core/src/main/java/com/dlink/explainer/sqllineage/LineageBuilder.java

@@ -17,7 +17,7 @@
  *
  */
 
-package com.dlink.explainer.sqlLineage;
+package com.dlink.explainer.sqllineage;
 
 import com.dlink.assertion.Asserts;
 import com.dlink.explainer.lineage.LineageRelation;

dlink-core/src/main/java/com/dlink/explainer/sqlLineage/LineageColumn.java → dlink-core/src/main/java/com/dlink/explainer/sqllineage/LineageColumn.java

@@ -17,7 +17,7 @@
  *
  */
 
-package com.dlink.explainer.sqlLineage;
+package com.dlink.explainer.sqllineage;
 
 import com.dlink.assertion.Asserts;
 

dlink-core/src/main/java/com/dlink/explainer/sqlLineage/LineageUtils.java → dlink-core/src/main/java/com/dlink/explainer/sqllineage/LineageUtils.java

@@ -17,7 +17,7 @@
  *
  */
 
-package com.dlink.explainer.sqlLineage;
+package com.dlink.explainer.sqllineage;
 
 import com.dlink.assertion.Asserts;
 

dlink-core/src/main/java/com/dlink/explainer/sqlLineage/TreeNode.java → dlink-core/src/main/java/com/dlink/explainer/sqllineage/TreeNode.java

@@ -17,7 +17,7 @@
  *
  */
 
-package com.dlink.explainer.sqlLineage;
+package com.dlink.explainer.sqllineage;
 
 import java.util.HashSet;
 import java.util.Iterator;

dlink-core/src/main/java/com/dlink/explainer/sqlLineage/TreeNodeIterator.java → dlink-core/src/main/java/com/dlink/explainer/sqllineage/TreeNodeIterator.java

@@ -17,7 +17,7 @@
  *
  */
 
-package com.dlink.explainer.sqlLineage;
+package com.dlink.explainer.sqllineage;
 
 import java.util.Iterator;
 

dlink-core/src/main/java/com/dlink/job/JobManager.java

@@ -596,6 +596,8 @@ public class JobManager {
                 if (Asserts.isNotNull(config.getGatewayConfig()) && Asserts.isNotNullString(config.getGatewayConfig().getFlinkConfig().getJobName())) {
                     sb.append("set " + YarnConfigOptions.APPLICATION_NAME.key() + " = " + config.getGatewayConfig().getFlinkConfig().getJobName() + ";\r\n");
                 }
+                break;
+            default:
         }
         sb.append(statement);
         return sb.toString();

dlink-core/src/main/java/com/dlink/result/ResultRunnable.java

@@ -73,7 +73,7 @@ public class ResultRunnable implements Runnable {
                     catchData(ResultPool.get(jobId));
                 }
             } catch (Exception e) {
-
+                e.printStackTrace();
             }
         }
     }

dlink-executor/src/main/java/com/dlink/parser/SingleSqlParserFactory.java

@@ -50,10 +50,10 @@ public class SingleSqlParserFactory {
             tmp = new UpdateSqlParser(sql);
         } else if (contains(sql, "(insert\\s+into)(.+)(values)(.+)")) {
             tmp = new InsertSqlParser(sql);
-        } else if (contains(sql, "(create\\s+table)(.+)")) {
-        } else if (contains(sql, "(create\\s+database)(.+)")) {
-        } else if (contains(sql, "(show\\s+databases)")) {
-        } else if (contains(sql, "(use)(.+)")) {
+        //} else if (contains(sql, "(create\\s+table)(.+)")) {
+        //} else if (contains(sql, "(create\\s+database)(.+)")) {
+        //} else if (contains(sql, "(show\\s+databases)")) {
+        //} else if (contains(sql, "(use)(.+)")) {
         } else if (contains(sql, "(set)(.+)")) {
             tmp = new SetSqlParser(sql);
         } else if (contains(sql, "(show\\s+fragment)\\s+(.+)")) {

dlink-executor/src/main/java/com/dlink/trans/ddl/SetOperation.java

@@ -68,6 +68,7 @@ public class SetOperation extends AbstractOperation implements Operation {
                 return null;
             }
         } catch (ClassNotFoundException e) {
+            e.printStackTrace();
         }
         Map<String, List<String>> map = SingleSqlParserFactory.generateParser(statement);
         if (Asserts.isNotNullMap(map) && map.size() == 2) {

dlink-extends/dependency-reduced-pom.xml

 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <parent>
     <artifactId>dlink</artifactId>
     <groupId>com.dlink</groupId>

dlink-gateway/src/main/java/com/dlink/gateway/config/FlinkConfig.java

@@ -77,7 +77,7 @@ public class FlinkConfig {
     }
 
     public static FlinkConfig build(String jobName, String jobId, String actionStr, String savePointTypeStr, String savePoint, String configParasStr) {
-//        List<ConfigPara> configParasList = new ArrayList<>();
+        //List<ConfigPara> configParasList = new ArrayList<>();
         Map<String, String> configMap = new HashMap<>();
         JsonNode paras = null;
         if (Asserts.isNotNullString(configParasStr)) {

dlink-metadata/dlink-metadata-clickhouse/src/test/java/com/dlink/metadata/ClickHouseTest.java

@@ -25,7 +25,6 @@ import com.dlink.metadata.driver.DriverConfig;
 import com.dlink.metadata.result.JdbcSelectResult;
 import com.dlink.model.Column;
 import com.dlink.model.Schema;
-import com.dlink.utils.JSONUtil;
 
 import java.util.List;
 
@@ -55,30 +54,30 @@ public class ClickHouseTest {
     @Test
     public void connectTest() {
         String test = getDriver().test();
-        System.out.println(test);
-        System.out.println("end...");
+        //System.out.println(test);
+        //System.out.println("end...");
     }
 
     @Test
     public void schemaTest() {
         List<Schema> schemasAndTables = getDriver().getSchemasAndTables();
-        System.out.println(JSONUtil.toJsonString(schemasAndTables));
-        System.out.println("end...");
+        //System.out.println(JSONUtil.toJsonString(schemasAndTables));
+        //System.out.println("end...");
     }
 
     @Test
     public void columnTest() {
         Driver driver = getDriver();
         List<Column> columns = driver.listColumns("xxx", "xxx");
-        System.out.println(JSONUtil.toJsonString(columns));
-        System.out.println("end...");
+        //System.out.println(JSONUtil.toJsonString(columns));
+        //System.out.println("end...");
     }
 
     @Test
     public void queryTest() {
         Driver driver = getDriver();
         JdbcSelectResult query = driver.query("select * from xxx", 10);
-        System.out.println(JSONUtil.toJsonString(query));
-        System.out.println("end...");
+        //System.out.println(JSONUtil.toJsonString(query));
+        //System.out.println("end...");
     }
 }

pom.xml

@@ -481,7 +481,6 @@
                         <encoding>UTF-8</encoding>
                         <configLocation>style/checkstyle.xml</configLocation>
                         <failOnViolation>true</failOnViolation>
-                        <violationSeverity>warning</violationSeverity>
                         <includeTestSourceDirectory>true</includeTestSourceDirectory>
                         <sourceDirectories>
                             <sourceDirectory>${project.build.sourceDirectory}</sourceDirectory>

style/checkstyle.xml

@@ -21,7 +21,7 @@
 <module name="Checker">
     <property name="charset" value="UTF-8"/>
 
-    <property name="severity" value="info"/>
+<!--    <property name="severity" value="error"/>-->
 
     <property name="fileExtensions" value="java, properties, xml"/>
 
@@ -35,6 +35,7 @@
     </module>
 
     <module name="RegexpSingleline">
+        <property name="severity" value="warning"/>
         <property name="format" value="System\.out\.println"/>
         <property name="message" value="Prohibit invoking System.out.println in source code !"/>
     </module>
@@ -222,6 +223,7 @@
         <module name="UnusedImports"/>
 
         <module name="ImportOrder">
+<!--            <property name="severity" value="error"/>-->
             <property name="staticGroups" value="com.dlink,org.apache,java,javax,org,com"/>
             <property name="separatedStaticGroups" value="true"/>
 
@@ -230,6 +232,7 @@
             <property name="separated" value="true"/>
             <property name="option" value="top"/>
             <property name="sortStaticImportsAlphabetically" value="true"/>
+            <message key="import.ordering" value="Import {0} appears after other imports that it should precede"/>
         </module>
 
         <module name="NoWhitespaceBefore">
@@ -281,4 +284,4 @@
         <module name="AvoidStarImport"/>
 
     </module>
-</module>
\ No newline at end of file
+</module>