add oracle datasource and tables for test cqrs and event driven read model now call rest from gateway and save in command db in srivce a and save on query db serivce a then send to kafka message queue and save on snapshot tabel on service b

pom.xml

@@ -54,6 +54,11 @@
             <artifactId>postgresql</artifactId>
             <scope>runtime</scope>
         </dependency>
+        <dependency>
+            <groupId>com.oracle.database.jdbc</groupId>
+            <artifactId>ojdbc8</artifactId>
+            <version>19.8.0.0</version>
+        </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>

src/main/java/com/example/mmad/testapp/command/UserCommandHandler.java

@@ -22,7 +22,7 @@ public class UserCommandHandler {
         userEntity.setId(createUserCommand.getUserId());
         userEntity.setUserName(createUserCommand.getUserName());
         userEntity.setEmail(createUserCommand.getEmail());
-//        userRepository.save(userEntity);
+        userRepository.save(userEntity);
         UserCreatedEvent event = new UserCreatedEvent(
                 userEntity.getId(),
                 userEntity.getUserName(),

src/main/java/com/example/mmad/testapp/entity/UserEntity.java

@@ -8,18 +8,18 @@ import static jakarta.persistence.GenerationType.SEQUENCE;
 @Entity
 @Getter
 @Setter
-@Table(schema = "testapp", name = "user")
+@Table(schema = "TEST", name = "USERS")
 @Builder
 @AllArgsConstructor
 @NoArgsConstructor
 public class UserEntity {
 
     @Id
-    @SequenceGenerator(name = "seqTest", sequenceName = "testapp.person_seq", allocationSize = 1)
+    @SequenceGenerator(name = "seqTest", sequenceName = "USER_SEQ", allocationSize = 1)
     @GeneratedValue(strategy = SEQUENCE, generator = "seqTest")
     private Long id;
     @Column(name = "user_name")
     private String userName;
     @Column(name = "email")
     private String email;
-}
+}

src/main/java/com/example/mmad/testapp/entity/UserQueryEntity.java

@@ -0,0 +1,26 @@
+package com.example.mmad.testapp.entity;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+import lombok.*;
+
+@Entity
+@Getter
+@Setter
+@Table(schema = "TEST", name = "USERS_QUERY")
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+public class UserQueryEntity {
+
+    @Id
+//    @SequenceGenerator(name = "seqTest", sequenceName = "USER_SEQ", allocationSize = 1)
+//    @GeneratedValue(strategy = SEQUENCE, generator = "seqTest")
+    private Long id;
+    @Column(name = "user_name")
+    private String userName;
+    @Column(name = "email")
+    private String email;
+}

src/main/java/com/example/mmad/testapp/query/UserQueryHandler.java

@@ -1,27 +1,34 @@
 package com.example.mmad.testapp.query;
 
+import com.example.mmad.testapp.entity.UserQueryEntity;
 import com.example.mmad.testapp.event.UserCreatedEvent;
 import com.example.mmad.testapp.kafkaProducerConfig.KafkaProducerConfig;
+import com.example.mmad.testapp.repository.UserReadRepository;
 import org.springframework.context.event.EventListener;
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Component;
 
-import java.util.List;
-
 @Component
 public class UserQueryHandler {
     private static final String kafkaTopic = "user-created";
     private final KafkaProducerConfig kafkaProducer;
+    private final UserReadRepository userReadRepository;
 
-    public UserQueryHandler(KafkaProducerConfig kafkaProducer) {
+    public UserQueryHandler(KafkaProducerConfig kafkaProducer, UserReadRepository userReadRepository) {
         this.kafkaProducer = kafkaProducer;
+        this.userReadRepository = userReadRepository;
     }
 
     @Async("taskExecutor")
     @EventListener
     public void handelUserCreated(UserCreatedEvent event) {
         kafkaProducer.kafkaTemplate().send(kafkaTopic, event);
-        // persist in query data base
+        UserQueryEntity userQueryEntity = new UserQueryEntity();
+        userQueryEntity.setId(event.getUserId());
+        userQueryEntity.setUserName(event.getUsername());
+        userQueryEntity.setEmail(event.getEmail());
+        //TODO mapper needed
+        userReadRepository.save(userQueryEntity);
         System.out.println("Received user created event" + event.getUserId());
     }
 }

src/main/java/com/example/mmad/testapp/repository/UserReadRepository.java

@@ -1,9 +1,9 @@
 package com.example.mmad.testapp.repository;
 
-import com.example.mmad.testapp.entity.PersonEntity;
+import com.example.mmad.testapp.entity.UserQueryEntity;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 @Repository
-public interface UserReadRepository extends JpaRepository<PersonEntity, Long> {
+public interface UserReadRepository extends JpaRepository<UserQueryEntity, Long> {
 }

src/main/resources/db/changelog/changes/oracleLiquibases/liquibase-1.1.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.8.xsd">
+
+    <property name="now" value="UNIX_TIMESTAMP()" dbms="mysql"/>
+    <property name="now" value="sysdate" dbms="oracle"/>
+    <property name="now" value="now()" dbms="postgresql"/>
+
+    <changeSet id="1.1-1-mmad" author="mmad">
+        <insert schemaName="test" tableName="person">
+            <column name="id" value="1"/>
+            <column name="first_name" value="mohammad"/>
+            <column name="last_name" value="Reza"/>
+        </insert>
+    </changeSet>
+
+    <changeSet id="1.1-2-sequence" author="mmad">
+        <createSequence sequenceName="USER_SEQ" startValue="1" incrementBy="1"/>
+    </changeSet>
+</databaseChangeLog>

src/main/resources/db/changelog/changes/oracleLiquibases/liquibase-1.2.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+         http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.8.xsd">
+
+    <!-- Set correct time function for Oracle -->
+    <property name="now" value="SYSDATE" dbms="oracle"/>
+
+    <changeSet id="1.2-1-mmad" author="mmad">
+        <createTable schemaName="test" tableName="PERSON" remarks="اشخاص">
+            <column name="ID" type="NUMBER(19)" remarks="شناسه اشخاص">
+                <constraints nullable="false" primaryKey="true" primaryKeyName="PK_PERSON_ID"/>
+            </column>
+            <column name="FIRST_NAME" type="VARCHAR2(255)" remarks="نام"/>
+            <column name="LAST_NAME" type="VARCHAR2(255)" remarks="نام خانوادگی"/>
+        </createTable>
+    </changeSet>
+    <changeSet id="1.2-2-mrmad" author="mmad">
+        <createTable schemaName="test" tableName="USERS" remarks="کاربر">
+            <column name="ID" type="NUMBER(19)" remarks="شناسه کاربر">
+                <constraints nullable="false" primaryKey="true" primaryKeyName="PK_USER_ID"/>
+            </column>
+            <column name="user_name" type="VARCHAR2(255)" remarks="نام کاربری"/>
+            <column name="email" type="VARCHAR2(255)" remarks="ایمیل"/>
+        </createTable>
+    </changeSet>
+    <changeSet id="1.2-3-mrmad" author="mmad">
+        <createTable schemaName="test" tableName="USERS_QUERY" remarks="کاربر">
+            <column name="ID" type="NUMBER(19)" remarks="شناسه کاربر">
+                <constraints nullable="false" primaryKey="true" primaryKeyName="PK_USER_QUERY_ID"/>
+            </column>
+            <column name="user_name" type="VARCHAR2(255)" remarks="نام کاربری"/>
+            <column name="email" type="VARCHAR2(255)" remarks="ایمیل"/>
+        </createTable>
+    </changeSet>
+
+</databaseChangeLog>

src/main/resources/db/changelog/liquibase-master.xml

@@ -4,7 +4,7 @@
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.8.xsd">
 
-    <include file="changes/liquibase-1.2.xml" relativeToChangelogFile="true"/>
-    <include file="changes/liquibase-1.1.xml" relativeToChangelogFile="true"/>
+    <include file="changes/oracleLiquibases/liquibase-1.2.xml" relativeToChangelogFile="true"/>
+    <include file="changes/oracleLiquibases/liquibase-1.1.xml" relativeToChangelogFile="true"/>
 
 </databaseChangeLog>