fix

databendwriter/src/main/java/com/alibaba/datax/plugin/writer/databendwriter/DatabendWriter.java

@@ -27,16 +27,12 @@ public class DatabendWriter extends Writer {
         private CommonRdbmsWriter.Job commonRdbmsWriterMaster;
 
         @Override
-        public void init() {
+        public void init() throws DataXException {
             this.originalConfig = super.getPluginJobConf();
             this.commonRdbmsWriterMaster = new CommonRdbmsWriter.Job(DATABASE_TYPE);
             this.commonRdbmsWriterMaster.init(this.originalConfig);
             // placeholder currently not supported by databend driver, needs special treatment
-            try {
             DatabendWriterUtil.dealWriteMode(this.originalConfig);
-            } catch (Exception e) {
-                LOG.error(e.toString());
-            }
         }
 
         @Override

databendwriter/src/main/java/com/alibaba/datax/plugin/writer/databendwriter/DatabendWriterErrorCode.java

@@ -0,0 +1,33 @@
+package com.alibaba.datax.plugin.writer.databendwriter;
+
+import com.alibaba.datax.common.spi.ErrorCode;
+
+
+public enum DatabendWriterErrorCode implements ErrorCode {
+    CONF_ERROR("DatabendWriter-00", "配置错误."),
+    WRITE_DATA_ERROR("DatabendWriter-01", "写入数据时失败."),
+    ;
+
+    private final String code;
+    private final String description;
+
+    private DatabendWriterErrorCode(String code, String description) {
+        this.code = code;
+        this.description = description;
+    }
+
+    @Override
+    public String getCode() {
+        return this.code;
+    }
+
+    @Override
+    public String getDescription() {
+        return this.description;
+    }
+
+    @Override
+    public String toString() {
+        return String.format("Code:[%s], Description:[%s].", this.code, this.description);
+    }
+}

databendwriter/src/main/java/com/alibaba/datax/plugin/writer/databendwriter/util/DatabendWriterUtil.java

@@ -1,13 +1,16 @@
 package com.alibaba.datax.plugin.writer.databendwriter.util;
 
+import com.alibaba.datax.common.exception.DataXException;
 import com.alibaba.datax.common.util.Configuration;
 import com.alibaba.datax.plugin.rdbms.writer.Constant;
 import com.alibaba.datax.plugin.rdbms.writer.Key;
 
+import com.alibaba.datax.plugin.writer.databendwriter.DatabendWriterErrorCode;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import javax.xml.crypto.Data;
 import java.util.List;
 import java.util.StringJoiner;
 
@@ -17,7 +20,7 @@ public final class DatabendWriterUtil {
     private DatabendWriterUtil() {
     }
 
-    public static void dealWriteMode(Configuration originalConfig) throws Exception {
+    public static void dealWriteMode(Configuration originalConfig) throws DataXException {
         List<String> columns = originalConfig.getList(Key.COLUMN, String.class);
         List<String> onConflictColumns = originalConfig.getList(Key.ONCONFLICT_COLUMN, String.class);
         StringBuilder writeDataSqlTemplate = new StringBuilder();
@@ -29,8 +32,14 @@ public final class DatabendWriterUtil {
         LOG.info("write mode is {}", writeMode);
         if (writeMode.toLowerCase().contains("replace")) {
             if (onConflictColumns == null || onConflictColumns.size() == 0) {
-                throw new Exception("Replace mode must has onConflictColumn config");
+                throw DataXException
+                        .asDataXException(
+                                DatabendWriterErrorCode.CONF_ERROR,
+                                String.format(
+                                        "Replace mode must has onConflictColumn config."
+                                ));
             }
+
             // for databend if you want to use replace mode, the writeMode should be:  "writeMode": "replace"
             writeDataSqlTemplate.append("REPLACE INTO %s (")
                     .append(StringUtils.join(columns, ",")).append(") ").append(onConFlictDoString(onConflictColumns))
@@ -52,6 +61,7 @@ public final class DatabendWriterUtil {
 
             originalConfig.set(Constant.INSERT_OR_REPLACE_TEMPLATE_MARK, writeDataSqlTemplate);
         }
+
     }
 
     public static String onConFlictDoString(List<String> conflictColumns) {