package liquibase.sqlgenerator.core;
import liquibase.database.Database;
import liquibase.database.core.*;
import liquibase.exception.ValidationErrors;
import liquibase.sdk.database.MockDatabase;
import liquibase.sql.Sql;
import liquibase.sql.UnparsedSql;
import liquibase.sqlgenerator.SqlGeneratorChain;
import liquibase.statement.core.AddPrimaryKeyStatement;
import liquibase.structure.core.PrimaryKey;
import liquibase.structure.core.Table;
import liquibase.util.StringUtils;
public class AddPrimaryKeyGenerator extends AbstractSqlGenerator<AddPrimaryKeyStatement> {
@Override
public boolean supports(AddPrimaryKeyStatement statement, Database database) {
return (!(database instanceof SQLiteDatabase));
}
@Override
public ValidationErrors validate(AddPrimaryKeyStatement addPrimaryKeyStatement, Database database, SqlGeneratorChain sqlGeneratorChain) {
ValidationErrors validationErrors = new ValidationErrors();
validationErrors.checkRequiredField("columnNames", addPrimaryKeyStatement.getColumnNames());
validationErrors.checkRequiredField("tableName", addPrimaryKeyStatement.getTableName());
if (!(database instanceof MSSQLDatabase || database instanceof MockDatabase)) {
if (!addPrimaryKeyStatement.isClustered()) {
validationErrors.checkDisallowedField("clustered", addPrimaryKeyStatement.isClustered(), database);
}
}
return validationErrors;
}
@Override
public Sql[] generateSql(AddPrimaryKeyStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
String sql;
if (statement.getConstraintName() == null || database instanceof MySQLDatabase || database instanceof SybaseASADatabase) {
sql = "ALTER TABLE " + database.escapeTableName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName()) + " ADD PRIMARY KEY (" + database.escapeColumnNameList(statement.getColumnNames()) + ")";
} else {
sql = "ALTER TABLE " + database.escapeTableName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName()) + " ADD CONSTRAINT " + database.escapeConstraintName(statement.getConstraintName())+" PRIMARY KEY";
if (database instanceof MSSQLDatabase && !statement.isClustered()) {
if (statement.isClustered()) {
sql += " CLUSTERED";
} else {
sql += " NONCLUSTERED";
}
}
sql += " (" + database.escapeColumnNameList(statement.getColumnNames()) + ")";
}
if (StringUtils.trimToNull(statement.getTablespace()) != null && database.supportsTablespaces()) {
if (database instanceof MSSQLDatabase) {
sql += " ON "+statement.getTablespace();
} else if (database instanceof DB2Database || database instanceof SybaseASADatabase) {
; //not supported
} else {
sql += " USING INDEX TABLESPACE "+statement.getTablespace();
}
}
return new Sql[] {
new UnparsedSql(sql, getAffectedPrimaryKey(statement))
};
}
protected PrimaryKey getAffectedPrimaryKey(AddPrimaryKeyStatement statement) {
return new PrimaryKey().setTable((Table) new Table().setName(statement.getTableName()).setSchema(statement.getCatalogName(), statement.getSchemaName()));
}
}