Examples with Diff liquibase.diff.Diff used on opensource projects

Example 1 with Diff

use of liquibase.diff.Diff in project collect by openforis.

the class LiquibaseRelationalSchemaCreator method createRelationalSchema.

@Override
public void createRelationalSchema(RelationalSchema schema, Connection targetConn) throws CollectRdbException {
    PrintStream ps = null;
    try {
        LiquidbaseDatabaseSnapshotBuilder snapshotGen = new LiquidbaseDatabaseSnapshotBuilder();
        Database rdb = getDatabaseImplementation(targetConn);
        boolean dbSupportsFKs = rdb instanceof SQLiteDatabase ? false : true;
        DatabaseSnapshot generatedSnapshot = snapshotGen.createSnapshot(schema, dbSupportsFKs);
        String targetSchema = schema.getName();
        rdb.setDefaultSchemaName(targetSchema);
        DatabaseSnapshot emptyDbSnapshot = new DatabaseSnapshot(rdb, targetSchema);
        // Generate change set
        Diff diff = new Diff(generatedSnapshot, emptyDbSnapshot);
        DiffResult diffResult = diff.compare();
        File tmpFile = File.createTempFile("collect-schemagen", ".xml");
        ps = new PrintStream(new FileOutputStream(tmpFile));
        diffResult.setChangeSetAuthor("collect3");
        diffResult.setChangeSetContext("schemagen");
        System.out.println("Writing change log to " + tmpFile.getAbsolutePath());
        diffResult.printChangeLog(ps, rdb);
        ps.flush();
        // Execute change set
        Liquibase liq = new Liquibase(tmpFile.getName(), new FileSystemResourceAccessor(tmpFile.getParent()), rdb);
        liq.update("schemagen");
    } catch (LiquibaseException e) {
        throw new CollectRdbException("Failed to update schema", e);
    } catch (IOException e) {
        throw new CollectRdbException("Failed to create temp db changelog file", e);
    } catch (ParserConfigurationException e) {
        throw new CollectRdbException("Failed to write temp db changelog file", e);
    } finally {
        if (ps != null) {
            ps.close();
        }
    }
}