[db2] Add sql connector for Db2 CDC (#1626)

This closes #450.

flink-sql-connector-db2-cdc/pom.xml

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+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.
+-->
+<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">
+    <parent>
+        <artifactId>flink-cdc-connectors</artifactId>
+        <groupId>com.ververica</groupId>
+        <version>2.3-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>flink-sql-connector-db2-cdc</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.ververica</groupId>
+            <artifactId>flink-connector-db2-cdc</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.ibm.db2.jcc</groupId>
+            <artifactId>db2jcc</artifactId>
+            <version>db2jcc4</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.1.1</version>
+                <executions>
+                    <execution>
+                        <id>shade-flink</id>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <shadeTestJar>false</shadeTestJar>
+                            <artifactSet>
+                                <includes>
+                                    <include>*:*</include>
+                                </includes>
+                            </artifactSet>
+                            <filters>
+                                <filter>
+                                    <artifact>org.apache.kafka:*</artifact>
+                                    <excludes>
+                                        <exclude>kafka/kafka-version.properties</exclude>
+                                        <exclude>LICENSE</exclude>
+                                        <!-- Does not contain anything relevant.
+                                            Cites a binary dependency on jersey, but this is neither reflected in the
+                                            dependency graph, nor are any jersey files bundled. -->
+                                        <exclude>NOTICE</exclude>
+                                        <exclude>common/**</exclude>
+                                    </excludes>
+                                </filter>
+                            </filters>
+                            <relocations>
+                                <relocation>
+                                    <pattern>org.apache.kafka</pattern>
+                                    <shadedPattern>
+                                        com.ververica.cdc.connectors.shaded.org.apache.kafka
+                                    </shadedPattern>
+                                </relocation>
+                            </relocations>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>

flink-sql-connector-db2-cdc/src/main/java/com/ververica/cdc/connectors/db2/DummyDocs.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2022 Ververica Inc.
+ *
+ * Licensed 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 com.ververica.cdc.connectors.db2;
+
+/** This is used to generate a dummy docs jar for this module to pass OSS repository rule. */
+public class DummyDocs {}

flink-sql-connector-db2-cdc/src/main/resources/META-INF/NOTICE

@@ -0,0 +1,6 @@
+flink-sql-connector-db2-cdc
+Copyright 2020 Ververica Inc.
+
+This project bundles the following dependencies under the Apache Software License 2.0. (http://www.apache.org/licenses/LICENSE-2.0.txt)
+
+- org.apache.kafka:kafka-clients:2.5.0

pom.xml

@@ -49,6 +49,7 @@ under the License.
         <module>flink-sql-connector-oceanbase-cdc</module>
         <module>flink-sql-connector-sqlserver-cdc</module>
         <module>flink-sql-connector-tidb-cdc</module>
+        <module>flink-sql-connector-db2-cdc</module>
         <module>flink-cdc-e2e-tests</module>
     </modules>