[SEDONA-559] Make the flink example work

.github/workflows/example.yml

@@ -65,5 +65,5 @@ jobs:
         SPARK_VERSION: ${{ matrix.spark }}
         SPARK_COMPAT_VERSION: ${{ matrix.spark-compat }}
         SEDONA_VERSION: ${{ matrix.sedona }}
-      run: (cd examples/spark-sql;mvn clean install -Dspark.version=${SPARK_VERSION} -Dspark.compat.version=${SPARK_COMPAT_VERSION} -Dsedona.version=${SEDONA_VERSION};java -jar target/sedona-spark-example-1.0.0.jar)
-    - run: (cd examples/flink-sql;mvn clean install;java -jar target/sedona-flink-example-1.0.0.jar)
+      run: (cd examples/spark-sql;mvn clean install -Dspark.version=${SPARK_VERSION} -Dspark.compat.version=${SPARK_COMPAT_VERSION} -Dsedona.version=${SEDONA_VERSION};java -jar target/sedona-spark-example-1.6.0.jar)
+    - run: (cd examples/flink-sql;mvn clean install;java -jar target/sedona-flink-example-1.6.0.jar)

.gitignore

@@ -1,12 +1,12 @@
-/target/
+target
 /.idea
-/*.iml
+*.iml
 /*.ipr
 /*.iws
 /.settings/
 /.classpath
 /.project
-/dependency-reduced-pom.xml
+dependency-reduced-pom.xml
 /bin/
 /doc/
 /conf/

examples/flink-sql/pom.xml

@@ -20,32 +20,28 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
+
     <groupId>org.apache.sedona</groupId>
     <artifactId>sedona-flink-example</artifactId>
-    <version>1.0.0</version>
-
+    <version>1.6.0</version>
+    <name>Sedona : Examples : Flink</name>
     <packaging>jar</packaging>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <geotools.version>1.5.1-28.2</geotools.version>
         <geotools.scope>compile</geotools.scope>
-        <scala.compat.version>2.12</scala.compat.version>
-        <sedona.version>1.5.1</sedona.version>
-        <flink.version>1.14.3</flink.version>
+        <flink.version>1.19.0</flink.version>
         <flink.scope>compile</flink.scope>
+        <scala.compat.version>2.12</scala.compat.version>
+        <geotools.version>28.2</geotools.version>
+        <log4j.version>2.17.2</log4j.version>
     </properties>
 
     <dependencies>
         <dependency>
             <groupId>org.apache.sedona</groupId>
             <artifactId>sedona-flink_${scala.compat.version}</artifactId>
-            <version>${sedona.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.datasyslab</groupId>
-            <artifactId>geotools-wrapper</artifactId>
-            <version>${geotools.version}</version>
+            <version>${project.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.flink</groupId>
@@ -56,28 +52,21 @@
         <!--        For Flink DataStream API-->
         <dependency>
             <groupId>org.apache.flink</groupId>
-            <artifactId>flink-streaming-java_${scala.compat.version}</artifactId>
-            <version>${flink.version}</version>
-            <scope>${flink.scope}</scope>
-        </dependency>
-        <!--        Flink Kafka connector-->
-        <dependency>
-            <groupId>org.apache.flink</groupId>
-            <artifactId>flink-connector-kafka_${scala.compat.version}</artifactId>
+            <artifactId>flink-streaming-java</artifactId>
             <version>${flink.version}</version>
             <scope>${flink.scope}</scope>
         </dependency>
         <!--        For playing flink in IDE-->
         <dependency>
             <groupId>org.apache.flink</groupId>
-            <artifactId>flink-clients_${scala.compat.version}</artifactId>
+            <artifactId>flink-clients</artifactId>
             <version>${flink.version}</version>
             <scope>${flink.scope}</scope>
         </dependency>
         <!--        For Flink flink api, planner, udf/udt, csv-->
         <dependency>
             <groupId>org.apache.flink</groupId>
-            <artifactId>flink-table-api-java-bridge_${scala.compat.version}</artifactId>
+            <artifactId>flink-table-api-java-bridge</artifactId>
             <version>${flink.version}</version>
             <scope>${flink.scope}</scope>
         </dependency>
@@ -100,10 +89,50 @@
             <version>${flink.version}</version>
             <scope>${flink.scope}</scope>
         </dependency>
+
+        <!-- Add geotools dependencies, to make the examples use geotools in the IDE -->
+        <dependency>
+            <groupId>org.geotools</groupId>
+            <artifactId>gt-referencing</artifactId>
+            <version>${geotools.version}</version>
+            <scope>compile</scope>
+        </dependency>
+
+        <!-- Add a logging Framework, to make the examples produce -->
+        <!--             logs when executing in the IDE            -->
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <version>${log4j.version}</version>
+            <scope>compile</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>${log4j.version}</version>
+            <scope>compile</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>${log4j.version}</version>
+            <scope>compile</scope>
+        </dependency>
+
+        <!-- Let log4j code log to log4j2 logfile -->
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-1.2-api</artifactId>
+            <version>${log4j.version}</version>
+            <scope>compile</scope>
+        </dependency>
+
         <!--        For Flink Web Ui in test-->
         <dependency>
             <groupId>org.apache.flink</groupId>
-            <artifactId>flink-runtime-web_${scala.compat.version}</artifactId>
+            <artifactId>flink-runtime-web</artifactId>
             <version>${flink.version}</version>
             <scope>test</scope>
         </dependency>

examples/flink-sql/src/main/java/FlinkExample.java

@@ -21,6 +21,7 @@
 import org.apache.flink.table.api.EnvironmentSettings;
 import org.apache.flink.table.api.Table;
 import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
+
 import org.apache.sedona.flink.SedonaFlinkRegistrator;
 import org.apache.sedona.flink.expressions.Constructors;
 
@@ -43,17 +44,18 @@ public static void main(String[] args) {
 
         // Create a fake WKT string table source
         Table pointWktTable = Utils.createTextTable(env, tableEnv, Utils.createPointWKT(testDataSize), pointColNames);
+
         // Create a geometry column
-        Table pointTable = pointWktTable.select(call(Constructors.ST_GeomFromWKT.class.getSimpleName(),
-                        $(pointColNames[0])).as(pointColNames[0]),
-                $(pointColNames[1]));
+        Table pointTable = pointWktTable.select(
+            call("ST_GeomFromWKT", $(pointColNames[0])).as(pointColNames[0]),
+            $(pointColNames[1]));
+
         // Create S2CellID
         pointTable = pointTable.select($(pointColNames[0]), $(pointColNames[1]),
                 call("ST_S2CellIDs", $(pointColNames[0]), 6).as("s2id_array"));
         // Explode s2id array
         tableEnv.createTemporaryView("pointTable", pointTable);
         pointTable = tableEnv.sqlQuery("SELECT geom_point, name_point, s2id_point FROM pointTable CROSS JOIN UNNEST(pointTable.s2id_array) AS tmpTbl1(s2id_point)");
-        pointTable.execute().print();
 
 
         // Create a fake WKT string table source
@@ -68,13 +70,16 @@ public static void main(String[] args) {
         // Explode s2id array
         tableEnv.createTemporaryView("polygonTable", polygonTable);
         polygonTable = tableEnv.sqlQuery("SELECT geom_polygon, name_polygon, s2id_polygon FROM polygonTable CROSS JOIN UNNEST(polygonTable.s2id_array) AS tmpTbl2(s2id_polygon)");
-        polygonTable.execute().print();
+
+        // TODO: TableImpl.print() occurs EOF Exception due to https://issues.apache.org/jira/browse/FLINK-35406
+        // Use polygonTable.execute().print() when FLINK-35406 is fixed.
+        polygonTable.execute().collect().forEachRemaining(row -> System.out.println(row));
 
         // Join two tables by their S2 ids
         Table joinResult = pointTable.join(polygonTable).where($("s2id_point").isEqual($("s2id_polygon")));
         // Optional: remove false positives
-        joinResult = joinResult.where("ST_Contains(geom_polygon, geom_point)");
-        joinResult.execute().print();
+        joinResult = joinResult.where(call("ST_Contains", $("geom_polygon"), $("geom_point")));
+        joinResult.execute().collect().forEachRemaining(row -> System.out.println(row));
     }
 
 }

examples/flink-sql/src/main/resources/log4j2.properties

@@ -0,0 +1,25 @@
+################################################################################
+#  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.
+################################################################################
+
+rootLogger.level = INFO
+rootLogger.appenderRef.console.ref = ConsoleAppender
+
+appender.console.name = ConsoleAppender
+appender.console.type = CONSOLE
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss,SSS} %-5p %-60c %x - %m%n

examples/spark-sql/pom.xml

@@ -20,11 +20,11 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
+
     <groupId>org.apache.sedona</groupId>
     <artifactId>sedona-spark-example</artifactId>
-    <version>1.0.0</version>
-
-    <name>${project.groupId}:${project.artifactId}</name>
+    <version>1.6.0</version>
+    <name>Sedona : Examples : Spark</name>
     <description>Maven Example for SedonaDB</description>
     <packaging>jar</packaging>
 

flink/pom.xml

@@ -34,7 +34,6 @@
 
     <properties>
         <maven.deploy.skip>${skip.deploy.common.modules}</maven.deploy.skip>
-        <flink.version>1.19.0</flink.version>
         <flink.scope>provided</flink.scope>
     </properties>
 

pom.xml

@@ -86,6 +86,7 @@
         <spark.compat.version>3.0</spark.compat.version>
         <log4j.version>2.17.2</log4j.version>
 
+        <flink.version>1.19.0</flink.version>
         <slf4j.version>1.7.36</slf4j.version>
         <googles2.version>2.0.0</googles2.version>
         <uberh3.version>4.1.1</uberh3.version>
@@ -525,7 +526,7 @@
                         <failOnWarning>false</failOnWarning>
                         <sourceDirectory>${project.basedir}/src/main/scala</sourceDirectory>
                         <testSourceDirectory>${project.basedir}/src/test/scala</testSourceDirectory>
-                        <configLocation>${project.basedir}/../scalastyle_config.xml</configLocation>
+                        <configLocation>tools/maven/scalastyle_config.xml</configLocation>
                         <outputFile>${project.basedir}/target/scalastyle-output.xml</outputFile>
                         <outputEncoding>UTF-8</outputEncoding>
                     </configuration>

spark/pom.xml

@@ -107,19 +107,4 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
-
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.scalastyle</groupId>
-                    <artifactId>scalastyle-maven-plugin</artifactId>
-                    <configuration>
-                        <configLocation>${project.basedir}/../../scalastyle_config.xml</configLocation>
-                    </configuration>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-    </build>
-
 </project>