Liquibase groovy accessomg datebaseChangeLog property - gradle

Question

I have the following Liquibase script written in Groovy.
package data.db
databaseChangeLog {
// H2
property(name: "date", value: "DATETIME", dbms: "h2")
property(name: "integer", value: "INTEGER", dbms: "h2")
property(name: "bigint", value: "BIGINT", dbms: "h2")
property(name: "current_date", value: "NOW()", dbms: "h2")
property(name: "current_timestamp", value: "NOW()", dbms: "h2")
// TABLES
include(file: "tables/2017-06-22-001-user-account-tables.groovy", relativeToChangelogFile: true)
}
I am using Gradle for build and I included compile "org.liquibase:liquibase-groovy-dsl:1.2.2" so the script itself works.
However, I don't know how I can access these databaseChangeLog properties inside the script. I could't find and documentation or examples on how to do it.
Using xml it is pretty straightforward, here is the documentation with an example.
How do I do this using Groovy?

Answer 1

Ok, I found a solution that works, but seems a bit unwieldy. Please recommend something better if there is such a thing:
final DatabaseChangeLog dcl = (DatabaseChangeLog) properties['databaseChangeLog'];
final String bigintType = dcl.changeLogParameters.getValue("bigint", dcl)
Here is a bit of context:
package data.db.tables
import liquibase.changelog.DatabaseChangeLog
databaseChangeLog {
final DatabaseChangeLog dcl = (DatabaseChangeLog) properties['databaseChangeLog'];
final String bigintType = dcl.changeLogParameters.getValue("bigint", dcl)
changeSet(id: "2017-06-22-001-user-account-tables", author: "goranmrzljak") {
comment("User account tables")
createTable(tableName: "user_account_permission") {
column(name: "id", type: bigintType) {
constraints(primaryKey: true, primaryKeyName: "user_account_permission_pk")
}
// ...
}
// ...
}
}
This works both in the same file or databaseChangeLog, or in a different file or databaseChangeLog from where the properties were defined.