[feature] support spark array type write (#127)
diff --git a/spark-doris-connector/src/main/java/org/apache/doris/spark/load/DorisStreamLoad.java b/spark-doris-connector/src/main/java/org/apache/doris/spark/load/DorisStreamLoad.java
index 3708c55..4a7b1e0 100644
--- a/spark-doris-connector/src/main/java/org/apache/doris/spark/load/DorisStreamLoad.java
+++ b/spark-doris-connector/src/main/java/org/apache/doris/spark/load/DorisStreamLoad.java
@@ -22,6 +22,7 @@
import org.apache.doris.spark.rest.RestService;
import org.apache.doris.spark.rest.models.BackendV2;
import org.apache.doris.spark.rest.models.RespContent;
+import org.apache.doris.spark.util.DataUtil;
import org.apache.doris.spark.util.ListUtils;
import org.apache.doris.spark.util.ResponseUtil;
@@ -380,7 +381,13 @@
switch (fileType.toUpperCase()) {
case "CSV":
- loadDataList = Collections.singletonList(rows.stream().map(row -> row.stream().map(field -> field == null ? NULL_VALUE : field.toString()).collect(Collectors.joining(FIELD_DELIMITER))).collect(Collectors.joining(LINE_DELIMITER)));
+ loadDataList = Collections.singletonList(
+ rows.stream()
+ .map(row -> row.stream()
+ .map(DataUtil::handleColumnValue)
+ .map(Object::toString)
+ .collect(Collectors.joining(FIELD_DELIMITER))
+ ).collect(Collectors.joining(LINE_DELIMITER)));
break;
case "JSON":
List<Map<Object, Object>> dataList = new ArrayList<>();
@@ -389,12 +396,7 @@
Map<Object, Object> dataMap = new HashMap<>();
if (dfColumns.length == row.size()) {
for (int i = 0; i < dfColumns.length; i++) {
- Object col = row.get(i);
- if (col instanceof Timestamp) {
- dataMap.put(dfColumns[i], col.toString());
- continue;
- }
- dataMap.put(dfColumns[i], col);
+ dataMap.put(dfColumns[i], DataUtil.handleColumnValue(row.get(i)));
}
}
dataList.add(dataMap);
diff --git a/spark-doris-connector/src/main/java/org/apache/doris/spark/util/DataUtil.java b/spark-doris-connector/src/main/java/org/apache/doris/spark/util/DataUtil.java
new file mode 100644
index 0000000..ed9af50
--- /dev/null
+++ b/spark-doris-connector/src/main/java/org/apache/doris/spark/util/DataUtil.java
@@ -0,0 +1,50 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package org.apache.doris.spark.util;
+
+import scala.collection.JavaConversions;
+import scala.collection.mutable.WrappedArray;
+
+import java.sql.Timestamp;
+import java.util.Arrays;
+
+public class DataUtil {
+
+ public static final String NULL_VALUE = "\\N";
+
+ public static Object handleColumnValue(Object value) {
+
+ if (value == null) {
+ return NULL_VALUE;
+ }
+
+ if (value instanceof Timestamp) {
+ return value.toString();
+ }
+
+ if (value instanceof WrappedArray) {
+
+ Object[] arr = JavaConversions.seqAsJavaList((WrappedArray) value).toArray();
+ return Arrays.toString(arr);
+ }
+
+ return value;
+
+ }
+
+}
diff --git a/spark-doris-connector/src/test/java/org/apache/doris/spark/util/DataUtilTest.java b/spark-doris-connector/src/test/java/org/apache/doris/spark/util/DataUtilTest.java
new file mode 100644
index 0000000..020a241
--- /dev/null
+++ b/spark-doris-connector/src/test/java/org/apache/doris/spark/util/DataUtilTest.java
@@ -0,0 +1,32 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package org.apache.doris.spark.util;
+
+import junit.framework.TestCase;
+import org.junit.Assert;
+import scala.collection.mutable.WrappedArray;
+
+import java.sql.Timestamp;
+
+public class DataUtilTest extends TestCase {
+
+ public void testHandleColumnValue() {
+ Assert.assertEquals("2023-08-14 18:00:00.0", DataUtil.handleColumnValue(Timestamp.valueOf("2023-08-14 18:00:00")));
+ Assert.assertEquals("[1, 2, 3]", DataUtil.handleColumnValue(WrappedArray.make(new Integer[]{1,2,3})));
+ }
+}
\ No newline at end of file
