refactor: improve code readability. eliminate hide problem, wait for 0.7 (#1155)

* [WIP]refactor: improve code readability.

* refactor: constructor invoke constructor

* refactor: Asserts.java simple and format.

* refactor: simple code

* refactor: simple code

* chore: reformat code

* chore: remove unused import

* feat: improve variable concurrency strict

* feat: encapsulate start end time set function.

* feat: add AutoClosable to Driver interface.

* refactor: remove double bracket init, it is hide danger.

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

@@ -31,6 +31,7 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 
 import lombok.Getter;
 import lombok.Setter;
+import lombok.extern.slf4j.Slf4j;
 
 /**
  * StudioExecuteDTO
@@ -40,6 +41,7 @@ import lombok.Setter;
  */
 @Getter
 @Setter
+@Slf4j
 public class StudioExecuteDTO extends AbstractStatementDTO {
     // RUN_MODE
     private String type;
@@ -67,10 +69,9 @@ public class StudioExecuteDTO extends AbstractStatementDTO {
 
     public JobConfig getJobConfig() {
         Map<String, String> config = new HashMap<>();
-        JsonNode paras = null;
         if (Asserts.isNotNullString(configJson)) {
             try {
-                paras = mapper.readTree(configJson);
+                JsonNode paras = mapper.readTree(configJson);
                 paras.forEach((JsonNode node) -> {
                         if (!node.isNull()) {
                             config.put(node.get("key").asText(), node.get("value").asText());
@@ -78,7 +79,7 @@ public class StudioExecuteDTO extends AbstractStatementDTO {
                     }
                 );
             } catch (JsonProcessingException e) {
-                e.printStackTrace();
+                log.error(e.getMessage());
             }
         }
         return new JobConfig(

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

@@ -171,9 +171,8 @@ public class DataBaseServiceImpl extends SuperServiceImpl<DataBaseMapper, DataBa
 
     @Override
     public List<String> listEnabledFlinkWith() {
-        List<DataBase> dataBases = listEnabledAll();
         List<String> list = new ArrayList<>();
-        for (DataBase dataBase : dataBases) {
+        for (DataBase dataBase : listEnabledAll()) {
             if (Asserts.isNotNullString(dataBase.getFlinkConfig())) {
                 list.add(dataBase.getName() + ":=" + dataBase.getFlinkConfig() + "\n;\n");
             }

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

@@ -48,9 +48,8 @@ public class FragmentVariableServiceImpl extends SuperServiceImpl<FragmentVariab
 
     @Override
     public Map<String, String> listEnabledVariables() {
-        List<FragmentVariable> fragmentVariables = listEnabledAll();
         Map<String, String> variables = new LinkedHashMap<>();
-        for (FragmentVariable fragmentVariable : fragmentVariables) {
+        for (FragmentVariable fragmentVariable : listEnabledAll()) {
             variables.put(fragmentVariable.getName(), fragmentVariable.getFragmentValue());
         }
         return variables;

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

@@ -52,8 +52,6 @@ import com.dlink.model.UDFPath;
 import com.dlink.process.context.ProcessContextHolder;
 import com.dlink.process.model.ProcessEntity;
 import com.dlink.process.model.ProcessType;
-import com.dlink.process.pool.ConsolePool;
-import com.dlink.process.pool.ProcessPool;
 import com.dlink.result.DDLResult;
 import com.dlink.result.IResult;
 import com.dlink.result.SelectResult;
@@ -72,15 +70,13 @@ 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.Collections;
 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;
@@ -101,22 +97,29 @@ public class StudioServiceImpl implements StudioService {
 
     private static final Logger logger = LoggerFactory.getLogger(StudioServiceImpl.class);
 
-    @Autowired
-    private ClusterService clusterService;
-    @Autowired
-    private ClusterConfigurationService clusterConfigurationService;
-    @Autowired
-    private SavepointsService savepointsService;
-    @Autowired
-    private DataBaseService dataBaseService;
-    @Autowired
-    private TaskService taskService;
-
-    @Autowired
-    private FragmentVariableService fragmentVariableService;
-
-    @Autowired
-    private UDFService udfService;
+    private final ClusterService clusterService;
+    private final ClusterConfigurationService clusterConfigurationService;
+    private final SavepointsService savepointsService;
+    private final DataBaseService dataBaseService;
+    private final TaskService taskService;
+    private final FragmentVariableService fragmentVariableService;
+    private final UDFService udfService;
+
+    public StudioServiceImpl(ClusterService clusterService,
+                             ClusterConfigurationService clusterConfigurationService,
+                             SavepointsService savepointsService,
+                             DataBaseService dataBaseService,
+                             TaskService taskService,
+                             FragmentVariableService fragmentVariableService,
+                             UDFService udfService) {
+        this.clusterService = clusterService;
+        this.clusterConfigurationService = clusterConfigurationService;
+        this.savepointsService = savepointsService;
+        this.dataBaseService = dataBaseService;
+        this.taskService = taskService;
+        this.fragmentVariableService = fragmentVariableService;
+        this.udfService = udfService;
+    }
 
     private void addFlinkSQLEnv(AbstractStatementDTO statementDTO) {
         ProcessEntity process = ProcessContextHolder.getProcess();
@@ -156,7 +159,7 @@ public class StudioServiceImpl implements StudioService {
     }
 
     private void buildSession(JobConfig config) {
-        // If you are using a shared session, configure the current jobmanager address
+        // If you are using a shared session, configure the current jobManager address
         if (!config.isUseSession()) {
             config.setAddress(clusterService.buildEnvironmentAddress(config.isUseRemote(), config.getClusterId()));
         }
@@ -165,8 +168,10 @@ public class StudioServiceImpl implements StudioService {
     @Override
     public JobResult executeSql(StudioExecuteDTO studioExecuteDTO) {
         if (Dialect.notFlinkSql(studioExecuteDTO.getDialect())) {
-            return executeCommonSql(SqlDTO.build(studioExecuteDTO.getStatement(),
-                    studioExecuteDTO.getDatabaseId(), studioExecuteDTO.getMaxRowNum()));
+            return executeCommonSql(SqlDTO.build(
+                studioExecuteDTO.getStatement(),
+                studioExecuteDTO.getDatabaseId(),
+                studioExecuteDTO.getMaxRowNum()));
         } else {
             return executeFlinkSql(studioExecuteDTO);
         }
@@ -176,6 +181,7 @@ public class StudioServiceImpl implements StudioService {
         addFlinkSQLEnv(studioExecuteDTO);
         JobConfig config = studioExecuteDTO.getJobConfig();
         buildSession(config);
+
         // To initialize java udf, but it only support local mode.
         UDFPath udfPath = udfService.initUDF(studioExecuteDTO.getStatement(), GatewayType.get(config.getType()));
         config.setJarFiles(udfPath.getJarPaths());
@@ -199,23 +205,27 @@ public class StudioServiceImpl implements StudioService {
     public JobResult executeCommonSql(SqlDTO sqlDTO) {
         JobResult result = new JobResult();
         result.setStatement(sqlDTO.getStatement());
-        result.setStartTime(LocalDateTime.now());
+        result.setStartTimeNow();
         if (Asserts.isNull(sqlDTO.getDatabaseId())) {
             result.setSuccess(false);
             result.setError("请指定数据源");
-            result.setEndTime(LocalDateTime.now());
+            result.setEndTimeNow();
             return result;
-        } else {
+        }
+
         DataBase dataBase = dataBaseService.getById(sqlDTO.getDatabaseId());
         if (Asserts.isNull(dataBase)) {
             result.setSuccess(false);
             result.setError("数据源不存在");
-                result.setEndTime(LocalDateTime.now());
+            result.setEndTimeNow();
             return result;
         }
-            Driver driver = Driver.build(dataBase.getDriverConfig());
-            JdbcSelectResult selectResult = driver.executeSql(sqlDTO.getStatement(), sqlDTO.getMaxRowNum());
-            driver.close();
+
+        JdbcSelectResult selectResult;
+        try (Driver driver = Driver.build(dataBase.getDriverConfig())) {
+            selectResult = driver.executeSql(sqlDTO.getStatement(), sqlDTO.getMaxRowNum());
+        }
+
         result.setResult(selectResult);
         if (selectResult.isSuccess()) {
             result.setSuccess(true);
@@ -223,10 +233,9 @@ public class StudioServiceImpl implements StudioService {
             result.setSuccess(false);
             result.setError(selectResult.getError());
         }
-            result.setEndTime(LocalDateTime.now());
+        result.setEndTimeNow();
         return result;
     }
-    }
 
     @Override
     public IResult executeDDL(StudioDDLDTO studioDDLDTO) {
@@ -249,8 +258,6 @@ public class StudioServiceImpl implements StudioService {
     }
 
     private List<SqlExplainResult> explainFlinkSql(StudioExecuteDTO studioExecuteDTO) {
-        Map<String, ProcessEntity> map = ProcessPool.getInstance().getMap();
-        Map<String, StringBuilder> map2 = ConsolePool.getInstance().getMap();
         ProcessEntity process = ProcessContextHolder.registerProcess(
             ProcessEntity.init(ProcessType.FLINKEXPLAIN, SaManager.getStpLogic(null).getLoginIdAsInt(), "admin"));
 
@@ -262,11 +269,13 @@ public class StudioServiceImpl implements StudioService {
         config.buildLocal();
         buildSession(config);
         process.infoSuccess();
+
         // To initialize java udf, but it has a bug in the product environment now.
         UDFPath udfPath = udfService.initUDF(studioExecuteDTO.getStatement(), GatewayType.get(config.getType()));
         config.setJarFiles(udfPath.getJarPaths());
         config.setPyFiles(udfPath.getPyPaths());
         process.start();
+
         JobManager jobManager = JobManager.buildPlanMode(config);
         List<SqlExplainResult> sqlExplainResults =
             jobManager.explainSql(studioExecuteDTO.getStatement()).getSqlExplainResults();
@@ -276,26 +285,16 @@ 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 Collections.singletonList(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 Collections.singletonList(SqlExplainResult.fail(studioExecuteDTO.getStatement(), "数据源不存在"));
         }
-                };
-            }
-            Driver driver = Driver.build(dataBase.getDriverConfig());
-            List<SqlExplainResult> sqlExplainResults = driver.explain(studioExecuteDTO.getStatement());
-            driver.close();
-            return sqlExplainResults;
+
+        try (Driver driver = Driver.build(dataBase.getDriverConfig())) {
+            return driver.explain(studioExecuteDTO.getStatement());
         }
     }
 
@@ -430,17 +429,15 @@ public class StudioServiceImpl implements StudioService {
         JobConfig jobConfig = new JobConfig();
         jobConfig.setAddress(cluster.getJobManagerHost());
         jobConfig.setType(cluster.getType());
-        // 如果用户选择用dlink平台来托管集群信息 说明任务一定是从dlink发起提交的
         if (Asserts.isNotNull(cluster.getClusterConfigurationId())) {
-            Map<String, Object> gatewayConfig =
-                    clusterConfigurationService.getGatewayConfig(cluster.getClusterConfigurationId());
+            // 如果用户选择用dlink平台来托管集群信息 说明任务一定是从dlink发起提交的
+            Map<String, Object> gatewayConfig = clusterConfigurationService.getGatewayConfig(cluster.getClusterConfigurationId());
             jobConfig.buildGatewayConfig(gatewayConfig);
             jobConfig.getGatewayConfig().getClusterConfig().setAppId(cluster.getName());
             jobConfig.setTaskId(cluster.getTaskId());
             useGateway = true;
-        }
+        } else {
             // 用户选择外部的平台来托管集群信息，但是集群上的任务不一定是通过dlink提交的
-        else {
             jobConfig.setTaskId(taskId);
         }
         JobManager jobManager = JobManager.build(jobConfig);
@@ -451,6 +448,7 @@ public class StudioServiceImpl implements StudioService {
             if (jobConfig.getTaskId().equals(0)) {
                 return true;
             }
+
             for (JobInfo item : savePointResult.getJobInfos()) {
                 if (Asserts.isEqualsIgnoreCase(jobId, item.getJobId()) && Asserts.isNotNull(jobConfig.getTaskId())) {
                     Savepoints savepoints = new Savepoints();
@@ -480,34 +478,29 @@ public class StudioServiceImpl implements StudioService {
         } else {
             studioMetaStoreDTO.setStatement(FlinkQuery.showCatalogs());
             IResult result = executeMSFlinkSql(studioMetaStoreDTO);
+
             if (result instanceof DDLResult) {
                 DDLResult ddlResult = (DDLResult) result;
-                Iterator<String> iterator = ddlResult.getColumns().iterator();
-                if (iterator.hasNext()) {
-                    String key = iterator.next();
-                    List<Map<String, Object>> rowData = ddlResult.getRowData();
-                    for (Map<String, Object> item : rowData) {
+                ddlResult.getColumns().stream().findFirst().ifPresent(key -> {
+                        for (Map<String, Object> item : ddlResult.getRowData()) {
                             catalogs.add(Catalog.build(item.get(key).toString()));
                         }
                     }
+                );
+
                 for (Catalog catalog : catalogs) {
-                    String statement = FlinkQuery.useCatalog(catalog.getName()) + FlinkQuery.separator()
-                            + FlinkQuery.showDatabases();
+                    String statement = FlinkQuery.useCatalog(catalog.getName()) + FlinkQuery.separator() + FlinkQuery.showDatabases();
                     studioMetaStoreDTO.setStatement(statement);
                     IResult tableResult = executeMSFlinkSql(studioMetaStoreDTO);
-                    if (result instanceof DDLResult) {
                     DDLResult tableDDLResult = (DDLResult) tableResult;
-                        Iterator<String> tableIterator = tableDDLResult.getColumns().iterator();
-                        if (tableIterator.hasNext()) {
-                            String key = tableIterator.next();
+                    tableDDLResult.getColumns().stream().findFirst().ifPresent(key -> {
                         List<Map<String, Object>> rowData = tableDDLResult.getRowData();
                         List<Schema> schemas = new ArrayList<>();
                         for (Map<String, Object> item : rowData) {
                             schemas.add(Schema.build(item.get(key).toString()));
                         }
                         catalog.setSchemas(schemas);
-                        }
-                    }
+                    });
                 }
             }
         }
@@ -525,24 +518,25 @@ public class StudioServiceImpl implements StudioService {
                 tables.addAll(driver.listTables(studioMetaStoreDTO.getDatabase()));
             }
         } else {
-            String baseStatement = FlinkQuery.useCatalog(studioMetaStoreDTO.getCatalog()) + FlinkQuery.separator()
-                    + FlinkQuery.useDatabase(studioMetaStoreDTO.getDatabase()) + FlinkQuery.separator();
+            String baseStatement = FlinkQuery.useCatalog(studioMetaStoreDTO.getCatalog())
+                + FlinkQuery.separator()
+                + FlinkQuery.useDatabase(studioMetaStoreDTO.getDatabase())
+                + FlinkQuery.separator();
+
             // show tables
             String tableStatement = baseStatement + FlinkQuery.showTables();
             studioMetaStoreDTO.setStatement(tableStatement);
             IResult result = executeMSFlinkSql(studioMetaStoreDTO);
             if (result instanceof DDLResult) {
                 DDLResult ddlResult = (DDLResult) result;
-                Iterator<String> iterator = ddlResult.getColumns().iterator();
-                if (iterator.hasNext()) {
-                    String key = iterator.next();
+                ddlResult.getColumns().stream().findFirst().ifPresent(key -> {
                     List<Map<String, Object>> rowData = ddlResult.getRowData();
                     for (Map<String, Object> item : rowData) {
                         Table table = Table.build(item.get(key).toString(), studioMetaStoreDTO.getDatabase());
                         table.setCatalog(studioMetaStoreDTO.getCatalog());
                         tables.add(table);
                     }
-                }
+                });
             }
             // show views
             schema.setViews(showInfo(studioMetaStoreDTO, baseStatement, FlinkQuery.showViews()));
@@ -560,11 +554,13 @@ public class StudioServiceImpl implements StudioService {
     @Override
     public List<FlinkColumn> getMSFlinkColumns(StudioMetaStoreDTO studioMetaStoreDTO) {
         List<FlinkColumn> columns = new ArrayList<>();
-        if (Dialect.notFlinkSql(studioMetaStoreDTO.getDialect())) {
-            // nothing to do
-        } else {
-            String baseStatement = FlinkQuery.useCatalog(studioMetaStoreDTO.getCatalog()) + FlinkQuery.separator()
-                    + FlinkQuery.useDatabase(studioMetaStoreDTO.getDatabase()) + FlinkQuery.separator();
+        if (!Dialect.notFlinkSql(studioMetaStoreDTO.getDialect())) {
+            String baseStatement = FlinkQuery.useCatalog(
+                studioMetaStoreDTO.getCatalog())
+                + FlinkQuery.separator()
+                + FlinkQuery.useDatabase(studioMetaStoreDTO.getDatabase())
+                + FlinkQuery.separator();
+
             // desc tables
             String tableStatement = baseStatement + FlinkQuery.descTable(studioMetaStoreDTO.getTable());
             studioMetaStoreDTO.setStatement(tableStatement);
@@ -591,19 +587,15 @@ public class StudioServiceImpl implements StudioService {
 
     private List<String> showInfo(StudioMetaStoreDTO studioMetaStoreDTO, String baseStatement, String statement) {
         List<String> infos = new ArrayList<>();
-        String tableStatement = baseStatement + statement;
-        studioMetaStoreDTO.setStatement(tableStatement);
+        studioMetaStoreDTO.setStatement(baseStatement + statement);
         IResult result = executeMSFlinkSql(studioMetaStoreDTO);
         if (result instanceof DDLResult) {
             DDLResult ddlResult = (DDLResult) result;
-            Iterator<String> iterator = ddlResult.getColumns().iterator();
-            if (iterator.hasNext()) {
-                String key = iterator.next();
-                List<Map<String, Object>> rowData = ddlResult.getRowData();
-                for (Map<String, Object> item : rowData) {
+            ddlResult.getColumns().stream().findFirst().ifPresent(key -> {
+                for (Map<String, Object> item : ddlResult.getRowData()) {
                     infos.add(item.get(key).toString());
                 }
-            }
+            });
         }
         return infos;
     }

dlink-common/src/main/java/com/dlink/assertion/Asserts.java

@@ -21,8 +21,10 @@ package com.dlink.assertion;
 
 import com.dlink.exception.RunTimeException;
 
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Map;
+import java.util.Objects;
 
 /**
  * Asserts
@@ -44,17 +46,11 @@ public class Asserts {
     }
 
     public static boolean isNullString(String str) {
-        return isNull(str) || "".equals(str);
+        return isNull(str) || str.isEmpty();
     }
 
     public static boolean isAllNullString(String... str) {
-        boolean isNull = true;
-        for (String item : str) {
-            if (isNotNullString(item)) {
-                isNull = false;
-            }
-        }
-        return isNull;
+        return Arrays.stream(str).allMatch(Asserts::isNullString);
     }
 
     public static boolean isNotNullString(String str) {
@@ -62,33 +58,15 @@ public class Asserts {
     }
 
     public static boolean isAllNotNullString(String... str) {
-        boolean isNotNull = true;
-        for (String item : str) {
-            if (isNullString(item)) {
-                isNotNull = false;
-            }
-        }
-        return isNotNull;
+        return Arrays.stream(str).noneMatch(Asserts::isNullString);
     }
 
     public static boolean isEquals(String str1, String str2) {
-        if (isNull(str1) && isNull(str2)) {
-            return true;
-        } else if (isNull(str1) || isNull(str2)) {
-            return false;
-        } else {
-            return str1.equals(str2);
-        }
+        return Objects.equals(str1, str2);
     }
 
     public static boolean isEqualsIgnoreCase(String str1, String str2) {
-        if (isNull(str1) && isNull(str2)) {
-            return true;
-        } else if (isNull(str1) || isNull(str2)) {
-            return false;
-        } else {
-            return str1.equalsIgnoreCase(str2);
-        }
+        return (str1 == null && str2 == null) || (str1 != null && str1.equalsIgnoreCase(str2));
     }
 
     public static boolean isNullCollection(Collection<?> collection) {
@@ -100,7 +78,7 @@ public class Asserts {
     }
 
     public static boolean isNullMap(Map<?, ?> map) {
-        return isNull(map) || map.size() == 0;
+        return isNull(map) || map.isEmpty();
     }
 
     public static boolean isNotNullMap(Map<?, ?> map) {

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

@@ -66,4 +66,12 @@ public class JobResult {
         this.startTime = startTime;
         this.endTime = endTime;
     }
+
+    public void setStartTimeNow() {
+        this.setStartTime(LocalDateTime.now());
+    }
+
+    public void setEndTimeNow() {
+        this.setEndTime(LocalDateTime.now());
+    }
 }

dlink-core/src/main/java/com/dlink/utils/UDFUtil.java

@@ -53,6 +53,7 @@ import cn.hutool.core.io.FileUtil;
 import cn.hutool.core.lang.Dict;
 import cn.hutool.core.lang.Opt;
 import cn.hutool.core.map.MapUtil;
+import cn.hutool.core.text.CharSequenceUtil;
 import cn.hutool.core.util.ReUtil;
 import cn.hutool.core.util.StrUtil;
 import cn.hutool.crypto.digest.MD5;
@@ -69,6 +70,9 @@ import groovy.lang.GroovyClassLoader;
  */
 public class UDFUtil {
 
+    private UDFUtil() {
+    }
+
     protected static final Logger log = LoggerFactory.getLogger(UDFUtil.class);
     /**
      * 存放 udf md5与版本对应的k,v值
@@ -130,7 +134,7 @@ public class UDFUtil {
         }).collect(Collectors.toList());
         List<String> classNameList = udfList.stream().map(UDF::getClassName).collect(Collectors.toList());
         process.info(StringUtils.join(",", classNameList));
-        process.info(StrUtil.format("A total of {} UDF have been Parsed.", classNameList.size()));
+        process.info(CharSequenceUtil.format("A total of {} UDF have been Parsed.", classNameList.size()));
         return udfList;
     }
 

dlink-metadata/dlink-metadata-base/src/main/java/com/dlink/metadata/driver/Driver.java

@@ -41,7 +41,7 @@ import java.util.Set;
  * @author wenmo
  * @since 2021/7/19 23:15
  */
-public interface Driver {
+public interface Driver extends AutoCloseable {
 
     static Optional<Driver> get(DriverConfig config) {
         Asserts.checkNotNull(config, "数据源配置不能为空");

dlink-process/src/main/java/com/dlink/process/model/ProcessEntity.java

@@ -27,7 +27,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
 
-import cn.hutool.core.util.StrUtil;
+import cn.hutool.core.text.CharSequenceUtil;
 
 /**
  * Process
@@ -121,7 +121,7 @@ public class ProcessEntity {
         if (isNullProcess()) {
             return;
         }
-        String message = StrUtil.format("\n[{}] {} CONFIG: {}", type.getValue(), LocalDateTime.now(), str);
+        String message = CharSequenceUtil.format("\n[{}] {} CONFIG: {}", type.getValue(), LocalDateTime.now(), str);
         steps.get(stepIndex - 1).appendInfo(message);
         ConsolePool.write(message, userId);
     }
@@ -130,7 +130,7 @@ public class ProcessEntity {
         if (isNullProcess()) {
             return;
         }
-        String message = StrUtil.format("\n[{}] {} INFO: {}", type.getValue(), LocalDateTime.now(), str);
+        String message = CharSequenceUtil.format("\n[{}] {} INFO: {}", type.getValue(), LocalDateTime.now(), str);
         steps.get(stepIndex - 1).appendInfo(message);
         ConsolePool.write(message, userId);
     }
@@ -155,7 +155,7 @@ public class ProcessEntity {
         if (isNullProcess()) {
             return;
         }
-        String message = StrUtil.format("\n[{}] {} ERROR: {}", type.getValue(), LocalDateTime.now(), str);
+        String message = CharSequenceUtil.format("\n[{}] {} ERROR: {}", type.getValue(), LocalDateTime.now(), str);
         steps.get(stepIndex - 1).appendInfo(message);
         steps.get(stepIndex - 1).appendError(message);
         ConsolePool.write(message, userId);

dlink-process/src/main/java/com/dlink/process/model/ProcessStep.java

@@ -41,11 +41,10 @@ public class ProcessStep {
     }
 
     public ProcessStep(ProcessStatus stepStatus, LocalDateTime startTime) {
-        this.stepStatus = stepStatus;
-        this.startTime = startTime;
+        this(stepStatus, startTime, null, 0, null, null);
     }
 
-    public ProcessStep(int index, ProcessStatus stepStatus, LocalDateTime startTime, LocalDateTime endTime, long time,
+    public ProcessStep(ProcessStatus stepStatus, LocalDateTime startTime, LocalDateTime endTime, long time,
                        StringBuilder info, StringBuilder error) {
         this.stepStatus = stepStatus;
         this.startTime = startTime;

dlink-process/src/main/java/com/dlink/process/pool/ConsolePool.java

@@ -32,9 +32,9 @@ import java.util.concurrent.ConcurrentHashMap;
  */
 public class ConsolePool extends AbstractPool<StringBuilder> {
 
-    private static volatile Map<String, StringBuilder> consoleEntityMap = new ConcurrentHashMap<>();
+    private static final Map<String, StringBuilder> consoleEntityMap = new ConcurrentHashMap<>();
 
-    private static ConsolePool instance = new ConsolePool();
+    private static final ConsolePool instance = new ConsolePool();
 
     public static ConsolePool getInstance() {
         return instance;
@@ -51,13 +51,8 @@ public class ConsolePool extends AbstractPool<StringBuilder> {
     }
 
     public static void write(String str, Integer userId) {
-        String user = userId.toString();
-        if (consoleEntityMap.containsKey(user)) {
-            consoleEntityMap.get(user).append(str);
-        } else {
-            StringBuilder sb = new StringBuilder("Dinky User Console:");
-            consoleEntityMap.put(user, sb.append(str));
-        }
+        String user = String.valueOf(userId);
+        consoleEntityMap.getOrDefault(user, new StringBuilder("Dinky User Console:")).append(str);
     }
 
 }

dlink-process/src/main/java/com/dlink/process/pool/ProcessPool.java

@@ -33,9 +33,9 @@ import java.util.concurrent.ConcurrentHashMap;
  */
 public class ProcessPool extends AbstractPool<ProcessEntity> {
 
-    private static volatile Map<String, ProcessEntity> processEntityMap = new ConcurrentHashMap<>();
+    private static final Map<String, ProcessEntity> processEntityMap = new ConcurrentHashMap<>();
 
-    private static ProcessPool instance = new ProcessPool();
+    private static final ProcessPool instance = new ProcessPool();
 
     public static ProcessPool getInstance() {
         return instance;