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The following commit(s) were added to refs/heads/master by this push:
new 2064f43 [fix] null value is written as null string in csv format
(#166)
2064f43 is described below
commit 2064f4395a2e9d7fafbd58daab8123f1569cceef
Author: gnehil <adamlee...@gmail.com>
AuthorDate: Tue Dec 5 15:03:15 2023 +0800
[fix] null value is written as null string in csv format (#166)
---
.../doris/spark/load/RecordBatchInputStream.java | 6 +-
.../java/org/apache/doris/spark/util/DataUtil.java | 42 ++++------
.../org/apache/doris/spark/util/DataUtilTest.java | 90 ++++++++++++++++++++++
3 files changed, 107 insertions(+), 31 deletions(-)
diff --git
a/spark-doris-connector/src/main/java/org/apache/doris/spark/load/RecordBatchInputStream.java
b/spark-doris-connector/src/main/java/org/apache/doris/spark/load/RecordBatchInputStream.java
index 047ac3b..544e683 100644
---
a/spark-doris-connector/src/main/java/org/apache/doris/spark/load/RecordBatchInputStream.java
+++
b/spark-doris-connector/src/main/java/org/apache/doris/spark/load/RecordBatchInputStream.java
@@ -164,11 +164,7 @@ public class RecordBatchInputStream extends InputStream {
switch (recordBatch.getFormat().toLowerCase()) {
case "csv":
- if (recordBatch.getAddDoubleQuotes()) {
- bytes = DataUtil.rowAddDoubleQuotesToCsvBytes(row,
recordBatch.getSchema(), recordBatch.getSep());
- } else {
- bytes = DataUtil.rowToCsvBytes(row,
recordBatch.getSchema(), recordBatch.getSep());
- }
+ bytes = DataUtil.rowToCsvBytes(row, recordBatch.getSchema(),
recordBatch.getSep(), recordBatch.getAddDoubleQuotes());
break;
case "json":
try {
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
index 530657e..763d72b 100644
---
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
@@ -21,6 +21,8 @@ import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.json.JsonMapper;
import com.fasterxml.jackson.module.scala.DefaultScalaModule;
+import org.apache.commons.lang3.ObjectUtils;
+import org.apache.commons.lang3.StringUtils;
import org.apache.doris.spark.sql.SchemaUtils;
import org.apache.spark.sql.catalyst.InternalRow;
import org.apache.spark.sql.types.StructField;
@@ -29,6 +31,10 @@ import org.apache.spark.sql.types.StructType;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
+import java.util.Objects;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+import java.util.stream.Stream;
public class DataUtil {
@@ -36,36 +42,20 @@ public class DataUtil {
public static final String NULL_VALUE = "\\N";
- public static byte[] rowToCsvBytes(InternalRow row, StructType schema,
String sep) {
- StringBuilder builder = new StringBuilder();
+ public static byte[] rowToCsvBytes(InternalRow row, StructType schema,
String sep, boolean quote) {
StructField[] fields = schema.fields();
int n = row.numFields();
if (n > 0) {
- builder.append(SchemaUtils.rowColumnValue(row, 0,
fields[0].dataType()));
- int i = 1;
- while (i < n) {
- builder.append(sep);
- builder.append(SchemaUtils.rowColumnValue(row, i,
fields[i].dataType()));
- i++;
- }
+ return IntStream.range(0, row.numFields()).boxed().map(idx -> {
+ Object value =
ObjectUtils.defaultIfNull(SchemaUtils.rowColumnValue(row, idx,
fields[idx].dataType()),
+ NULL_VALUE);
+ if (quote) {
+ value = "\"" + value + "\"";
+ }
+ return value.toString();
+
}).collect(Collectors.joining(sep)).getBytes(StandardCharsets.UTF_8);
}
- return builder.toString().getBytes(StandardCharsets.UTF_8);
- }
-
- public static byte[] rowAddDoubleQuotesToCsvBytes(InternalRow row,
StructType schema, String sep) {
- StringBuilder builder = new StringBuilder();
- StructField[] fields = schema.fields();
- int n = row.numFields();
- if (n > 0) {
- builder.append("\"").append(SchemaUtils.rowColumnValue(row, 0,
fields[0].dataType())).append("\"");
- int i = 1;
- while (i < n) {
- builder.append(sep);
- builder.append("\"").append(SchemaUtils.rowColumnValue(row, i,
fields[i].dataType())).append("\"");
- i++;
- }
- }
- return builder.toString().getBytes(StandardCharsets.UTF_8);
+ return StringUtils.EMPTY.getBytes(StandardCharsets.UTF_8);
}
public static byte[] rowToJsonBytes(InternalRow row, StructType schema)
throws JsonProcessingException {
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..2dca9bb
--- /dev/null
+++
b/spark-doris-connector/src/test/java/org/apache/doris/spark/util/DataUtilTest.java
@@ -0,0 +1,90 @@
+// 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 com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.json.JsonMapper;
+import junit.framework.TestCase;
+import org.apache.spark.sql.catalyst.InternalRow;
+import org.apache.spark.sql.types.DataTypes;
+import org.apache.spark.sql.types.Metadata;
+import org.apache.spark.sql.types.StructField;
+import org.apache.spark.sql.types.StructType;
+import org.apache.spark.unsafe.types.UTF8String;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+import scala.collection.JavaConversions;
+
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+@RunWith(JUnit4.class)
+public class DataUtilTest extends TestCase {
+
+ private static final ObjectMapper MAPPER = JsonMapper.builder().build();
+
+ private List<Object> values;
+
+ private StructType schema;
+
+ @Override
+ @Before
+ public void setUp() throws Exception {
+ if (values == null) {
+ values = new LinkedList<>();
+ values.add(1);
+ values.add(null);
+ values.add(UTF8String.fromString("abc"));
+ }
+ schema = new StructType(new StructField[]{
+ StructField.apply("c1", DataTypes.IntegerType, true,
Metadata.empty()),
+ StructField.apply("c2", DataTypes.StringType, true,
Metadata.empty()),
+ StructField.apply("c3", DataTypes.StringType, true,
Metadata.empty())
+ });
+ }
+
+
+ @Test
+ public void rowToCsvBytes() {
+
+ InternalRow row =
InternalRow.apply(JavaConversions.asScalaBuffer(values).toSeq());
+ byte[] bytes = DataUtil.rowToCsvBytes(row, schema, ",", false);
+ Assert.assertArrayEquals("1,\\N,abc".getBytes(StandardCharsets.UTF_8),
bytes);
+ byte[] bytes1 = DataUtil.rowToCsvBytes(row, schema, ",", true);
+
Assert.assertArrayEquals("\"1\",\"\\N\",\"abc\"".getBytes(StandardCharsets.UTF_8),
bytes1);
+ }
+
+ @Test
+ public void rowToJsonBytes() throws JsonProcessingException {
+ Map<String, Object> dataMap = new HashMap<>(values.size());
+ dataMap.put("c1", 1);
+ dataMap.put("c2", null);
+ dataMap.put("c3", "abc");
+ InternalRow row =
InternalRow.apply(JavaConversions.asScalaBuffer(values).toSeq());
+ byte[] bytes = DataUtil.rowToJsonBytes(row, schema);
+ Assert.assertArrayEquals(MAPPER.writeValueAsBytes(dataMap), bytes);
+ }
+
+}
\ No newline at end of file
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