Generate Liquibase Database Migrations

extensions/liquibase/runtime/pom.xml

@@ -21,6 +21,10 @@
             <groupId>org.liquibase</groupId>
             <artifactId>liquibase-core</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.hibernate.orm</groupId>
+            <artifactId>hibernate-core</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.osgi</groupId>
             <artifactId>osgi.core</artifactId>

extensions/liquibase/runtime/src/main/java/io/quarkus/liquibase/customfactory/CustomMetadataFactory.java

@@ -0,0 +1,18 @@
+package io.quarkus.liquibase.customfactory;
+
+import io.quarkus.liquibase.database.QuarkusDatabase;
+import io.quarkus.liquibase.database.connection.HibernateConnection;
+import org.hibernate.boot.Metadata;
+
+/**
+ * Implement this interface to dynamically generate a hibernate:ejb3 configuration.
+ * For example, if you create a class called com.example.hibernate.MyConfig, specify a url of hibernate:ejb3:com.example.hibernate.MyConfig.
+ */
+public interface CustomMetadataFactory {
+
+    /*
+     * Create a hibernate Configuration for the given database and connection.
+     */
+    Metadata getMetadata(QuarkusDatabase hibernateDatabase, HibernateConnection connection);
+
+}

extensions/liquibase/runtime/src/main/java/io/quarkus/liquibase/database/QuarkusDatabase.java

@@ -0,0 +1,180 @@
+package io.quarkus.liquibase.database;
+
+import liquibase.database.AbstractJdbcDatabase;
+import liquibase.database.DatabaseConnection;
+import liquibase.database.jvm.JdbcConnection;
+import liquibase.exception.DatabaseException;
+import io.quarkus.liquibase.database.connection.HibernateConnection;
+import io.quarkus.liquibase.database.connection.HibernateDriver;
+import org.hibernate.boot.Metadata;
+import org.hibernate.boot.spi.BootstrapContext;
+import org.hibernate.dialect.Dialect;
+import org.hibernate.dialect.MySQLDialect;
+import org.hibernate.engine.spi.SessionFactoryImplementor;
+import org.hibernate.integrator.spi.Integrator;
+import org.hibernate.service.spi.SessionFactoryServiceRegistry;
+
+/**
+ * Base class for all Hibernate Databases. This extension interacts with Hibernate by creating standard liquibase.database.Database implementations that
+ * bridge what Liquibase expects and the Hibernate APIs.
+ */
+public class QuarkusDatabase extends AbstractJdbcDatabase implements Integrator {
+
+    private static Metadata metadata;
+    private static Dialect dialect;
+
+    private boolean indexesForForeignKeys = false;
+    public static final String DEFAULT_SCHEMA = "HIBERNATE";
+
+    public QuarkusDatabase() {
+        setDefaultCatalogName(DEFAULT_SCHEMA);
+        setDefaultSchemaName(DEFAULT_SCHEMA);
+    }
+
+    @Override
+    public void integrate(
+            Metadata metadata,
+            BootstrapContext bootstrapContext,
+            SessionFactoryImplementor sessionFactory) {
+        QuarkusDatabase.metadata = metadata;
+        QuarkusDatabase.dialect = sessionFactory.getJdbcServices().getDialect();
+    }
+
+    @Override
+    public void disintegrate(
+            SessionFactoryImplementor sessionFactory,
+            SessionFactoryServiceRegistry serviceRegistry) {}
+
+
+    @Override
+    public String getShortName() {
+        return "hibernateQuarkus";
+    }
+
+    @Override
+    protected String getDefaultDatabaseProductName() {
+        return "Quarkus Hibernate";
+    }
+
+    @Override
+    public boolean isCorrectDatabaseImplementation(DatabaseConnection conn) throws DatabaseException {
+        return conn.getURL().startsWith("hibernate:quarkus:");
+    }
+
+    public boolean requiresPassword() {
+        return false;
+    }
+
+    public boolean requiresUsername() {
+        return false;
+    }
+
+    public String getDefaultDriver(String url) {
+        if (url.startsWith("hibernate")) {
+            return HibernateDriver.class.getName();
+        }
+        return null;
+    }
+
+    public int getPriority() {
+        return PRIORITY_DEFAULT;
+    }
+
+    /** Returns the dialect determined during database initialization. */
+    public Dialect getDialect() {
+        return QuarkusDatabase.dialect;
+    }
+
+    /**
+     * Return the hibernate {@link Metadata} used by this database.
+     */
+    public Metadata getMetadata() throws DatabaseException {
+        return metadata;
+    }
+
+
+    /**
+     * Convenience method to return the underlying HibernateConnection in the JdbcConnection returned by {@link #getConnection()}
+     */
+    protected HibernateConnection getHibernateConnection() {
+        return ((HibernateConnection) ((JdbcConnection) getConnection()).getUnderlyingConnection());
+    }
+
+    /**
+     * Perform any post-configuration setting logic.
+     */
+    protected void afterSetup() {
+        if (dialect instanceof MySQLDialect) {
+            indexesForForeignKeys = true;
+        }
+    }
+
+    /**
+     * Returns the value of the given property. Should return the value given as a connection URL first, then fall back to configuration-specific values.
+     */
+    public String getProperty(String name) {
+        return getHibernateConnection().getProperties().getProperty(name);
+    }
+
+
+    @Override
+    public boolean createsIndexesForForeignKeys() {
+        return indexesForForeignKeys;
+    }
+
+    @Override
+    public Integer getDefaultPort() {
+        return 0;
+    }
+
+    @Override
+    public boolean supportsInitiallyDeferrableColumns() {
+        return false;
+    }
+
+    @Override
+    public boolean supportsTablespaces() {
+        return false;
+    }
+
+    @Override
+    protected String getConnectionCatalogName() throws DatabaseException {
+        return getDefaultCatalogName();
+    }
+
+    @Override
+    protected String getConnectionSchemaName() {
+        return getDefaultSchemaName();
+    }
+
+    @Override
+    public String getDefaultSchemaName() {
+        return DEFAULT_SCHEMA;
+    }
+
+    @Override
+    public String getDefaultCatalogName() {
+        return DEFAULT_SCHEMA;
+    }
+
+    @Override
+    public boolean isSafeToRunUpdate() throws DatabaseException {
+        return true;
+    }
+
+    @Override
+    public boolean isCaseSensitive() {
+        return false;
+    }
+
+    @Override
+    public boolean supportsSchemas() {
+        return true;
+    }
+
+    @Override
+    public boolean supportsCatalogs() {
+        return false;
+    }
+
+}