I want to get an example of liquibase, Spring and MongoDB all together. In order to do so, I created a Spring project using Spring Initializr with Spring Data MongoDB as dependency. The project already connects to the database and now I would like to use liquibase. I followed the instructions from liquibase using the maven approach but if I run the maven command mvn liquibase:status
I will get the following error:
Unexpected error running Liquibase: Cannot find database driver: com.mongodb.client.MongoClients.<init>()
It looks like this problem has been already reported to liquibase but if there is a solution it hasn't been posted in the issue.
I tried as well to use the CLI option by adding the jars to the lib folder of the liquibase installation. I got the same error if I run liquibase status
I have created a repo in GitHub to show the problem. Here there is some relevant configuration of the code:
pom.xml
<project>
...
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.3</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
...
<properties>
<liquibase-mongo-ext.version>4.14.0</liquibase-mongo-ext.version>
<liquibase-maven-plugin.version>4.2.0</liquibase-maven-plugin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.liquibase.ext</groupId>
<artifactId>liquibase-mongodb</artifactId>
<version>${liquibase-mongo-ext.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>${liquibase-maven-plugin.version}</version>
<configuration>
<propertyFile>liquibase.properties</propertyFile>
</configuration>
<dependencies>
<dependency>
<groupId>org.liquibase.ext</groupId>
<artifactId>liquibase-mongodb</artifactId>
<version>${liquibase-mongo-ext.version}</version>
</dependency>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongodb-driver-sync</artifactId>
<version>4.6.1</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>
liquibase.properties
changeLogFile=./mongo/changelog/changelog.sql
url=jdbc:mongodb://127.0.0.1:27017/local
driver=com.mongodb.client.MongoClients
How can I get liquibase running with maven? Any suggestions?
EDIT 1: As Andrey suggested:
- Driver was updated to:
driver=liquibase.ext.mongodb.database.MongoClientDriver
- Url was updated to:
url=mongodb://127.0.0.1:27017/local
- plugin from liquibase was updated with new dependency
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-core</artifactId>
<version>4.9.1</version>
</dependency>
mvn liquibase:update
now trhows the following error. Since the other error seems to be unrelated to this one. I'll solve this answer and create a new thread.
[ERROR] Failed to execute goal org.liquibase:liquibase-maven-plugin:4.2.0:update (default-cli) on project mongo: Execution default-cli of goal org.liquibase:liquibase-maven-plugin:4.2.0:update failed: A required class was missing while executing org.liquibase:liquibase-maven-plugin:4.2.0:update: liquibase/configuration/HubConfiguration
CodePudding user response:
I have found following mistakes in your configuration:
1.
changeLogFile=./mongo/changelog/changelog.sql
url=jdbc:mongodb://127.0.0.1:27017/local
driver=com.mongodb.client.MongoClients
while liquibase-mongodb
expects something like (no jdbc
prefix, another driver class):
changeLogFile=./mongo/changelog/changelog.sql
url=mongodb://127.0.0.1:27017/local
driver=liquibase.ext.mongodb.database.MongoClientDriver
- liquibase version:
<liquibase-maven-plugin.version>4.2.0</liquibase-maven-plugin.version>
- 4.2.0 liquibase version seems to be incompatible with NoSQL DB extensions
- spring boot 2.7.3 uses liquibase 4.9.1 - you need somehow choose the correct liquibase version
Finally I get the following on liquibase:update
:
[ERROR] Failed to execute goal org.liquibase:liquibase-maven-plugin:4.14.0:update (default-cli) on project mongo: [ERROR] Error setting up or running Liquibase: [ERROR] liquibase.exception.DatabaseException: Could not execute: Command failed with error 72 (InvalidOptions): 'Document validators are not allowed on collection local.DATABASECHANGELOGLOCK with UUID 31bd40b8-3e1c-45c8-9d03-77b91c67a1a9 in the local internal database' on server 127.0.0.1:27017. The full response is {"ok": 0.0, "errmsg": "Document validators are not allowed on collection local.DATABASECHANGELOGLOCK with UUID 31bd40b8-3e1c-45c8-9d03-77b91c67a1a9 in the local internal database", "code": 72, "codeName": "InvalidOptions"}
no idea what does it mean - something related to mongodb and extension I believe
UPD.
The root cause of last error is described in documentation:
Restrictions
You cannot specify a validator for collections in the admin, local, and config databases.
You cannot specify a validator for system.* collections.
So, url (jdbc:mongodb://127.0.0.1:27017/local
) should point to another db.