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new fbde3da763 [INLONG-10841][SDK] Transform SQL supports toBase64
function (#10845)
fbde3da763 is described below
commit fbde3da7630f7fb703f37e17370fa0c8ae7f0169
Author: zoy0 <[email protected]>
AuthorDate: Thu Aug 22 16:59:37 2024 +0800
[INLONG-10841][SDK] Transform SQL supports toBase64 function (#10845)
---
.../process/function/ToBase64Function.java | 48 ++++++++++++++++++++++
.../transform/process/operator/OperatorTools.java | 2 +
.../TestTransformStringFunctionsProcessor.java | 16 ++++++++
3 files changed, 66 insertions(+)
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToBase64Function.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToBase64Function.java
new file mode 100644
index 0000000000..a82f36d9c2
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToBase64Function.java
@@ -0,0 +1,48 @@
+/*
+ * 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.inlong.sdk.transform.process.function;
+
+import org.apache.inlong.sdk.transform.decode.SourceData;
+import org.apache.inlong.sdk.transform.process.Context;
+import org.apache.inlong.sdk.transform.process.operator.OperatorTools;
+import org.apache.inlong.sdk.transform.process.parser.ValueParser;
+
+import net.sf.jsqlparser.expression.Function;
+
+import java.nio.charset.StandardCharsets;
+import java.util.Base64;
+
+/**
+ * ToBase64Function
+ * description: to_base64(string1)--returns the base64-encoded result from
string1
+ */
+public class ToBase64Function implements ValueParser {
+
+ private final ValueParser stringParser;
+
+ public ToBase64Function(Function expr) {
+ stringParser =
OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ Object stringObj = stringParser.parse(sourceData, rowIndex, context);
+ String string = OperatorTools.parseString(stringObj);
+ return
Base64.getEncoder().encodeToString(string.getBytes(StandardCharsets.UTF_8));
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
index 5ed42095da..c1cffbf88a 100644
---
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
@@ -42,6 +42,7 @@ import
org.apache.inlong.sdk.transform.process.function.SqrtFunction;
import org.apache.inlong.sdk.transform.process.function.SubstringFunction;
import org.apache.inlong.sdk.transform.process.function.TanFunction;
import
org.apache.inlong.sdk.transform.process.function.TimestampExtractFunction;
+import org.apache.inlong.sdk.transform.process.function.ToBase64Function;
import org.apache.inlong.sdk.transform.process.function.ToDateFunction;
import org.apache.inlong.sdk.transform.process.function.ToTimestampFunction;
import org.apache.inlong.sdk.transform.process.function.TrimFunction;
@@ -140,6 +141,7 @@ public class OperatorTools {
functionMap.put("from_unixtime", FromUnixTimeFunction::new);
functionMap.put("unix_timestamp", UnixTimestampFunction::new);
functionMap.put("to_timestamp", ToTimestampFunction::new);
+ functionMap.put("to_base64", ToBase64Function::new);
}
public static ExpressionOperator buildOperator(Expression expr) {
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java
index a56fc520b3..5479b4485a 100644
---
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java
@@ -184,4 +184,20 @@ public class TestTransformStringFunctionsProcessor {
Assert.assertEquals(output3.get(0), "result=in long");
}
+ @Test
+ public void testToBase64Function() throws Exception {
+ String transformSql = "select to_base64(string1) from source";
+ TransformConfig config = new TransformConfig(transformSql);
+ TransformProcessor<String, String> processor1 = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // to_base64('app-fun')
+ List<String> output1 = processor1.transform("app-fun", new
HashMap<>());
+ Assert.assertEquals(1, output1.size());
+ Assert.assertEquals(output1.get(0), "result=YXBwLWZ1bg==");
+ // to_base64('hello world')
+ List<String> output2 = processor1.transform("hello world", new
HashMap<>());
+ Assert.assertEquals(1, output2.size());
+ Assert.assertEquals(output2.get(0), "result=aGVsbG8gd29ybGQ=");
+ }
}
