[client] Introduce Paimon encoding to eliminate client-side Paimon dependency (#428)

Author: luoyuxia

fluss-client/pom.xml

@@ -47,15 +47,6 @@
             <version>${project.version}</version>
         </dependency>
 
-        <!-- paimon bundle -->
-        <!-- remove paimon bundle in #408 -->
-        <dependency>
-            <groupId>org.apache.paimon</groupId>
-            <artifactId>paimon-bundle</artifactId>
-            <version>${paimon.version}</version>
-            <scope>provided</scope>
-        </dependency>
-
         <!-- test dependency -->
         <dependency>
             <groupId>com.alibaba.fluss</groupId>

fluss-common/pom.xml

@@ -82,14 +82,6 @@
             <artifactId>frocksdbjni</artifactId>
         </dependency>
 
-        <!-- paimon bundle -->
-        <dependency>
-            <groupId>org.apache.paimon</groupId>
-            <artifactId>paimon-bundle</artifactId>
-            <version>${paimon.version}</version>
-            <scope>provided</scope>
-        </dependency>
-
         <!-- test dependencies -->
         <dependency>
             <groupId>com.alibaba.fluss</groupId>
@@ -104,6 +96,13 @@
             <version>${protobuf.version}</version>
             <scope>test</scope>
         </dependency>
+        <!-- paimon bundle, only for test purpose -->
+        <dependency>
+            <groupId>org.apache.paimon</groupId>
+            <artifactId>paimon-bundle</artifactId>
+            <version>${paimon.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>

fluss-common/src/main/java/com/alibaba/fluss/bucketing/PaimonBucketingFunction.java

@@ -16,13 +16,12 @@
 
 package com.alibaba.fluss.bucketing;
 
-import org.apache.paimon.utils.MurmurHashUtils;
+import com.alibaba.fluss.utils.MurmurHashUtils;
 
 /** An implementation of {@link BucketingFunction} to follow Paimon's bucketing strategy. */
 public class PaimonBucketingFunction implements BucketingFunction {
     @Override
     public int bucketing(byte[] bucketKey, int numBuckets) {
-        // TODO: remove paimon dependency in #408
         return Math.abs(MurmurHashUtils.hashBytes(bucketKey) % numBuckets);
     }
 }

fluss-common/src/main/java/com/alibaba/fluss/lakehouse/paimon/FlussAsPaimonRow.java

@@ -18,6 +18,7 @@
 
 import com.alibaba.fluss.metadata.DataLakeFormat;
 import com.alibaba.fluss.row.InternalRow;
+import com.alibaba.fluss.row.encode.paimon.PaimonKeyEncoder;
 import com.alibaba.fluss.types.RowType;
 
 import javax.annotation.Nullable;