public void dropBaseSchema(Connection conn) { if (!isLoaded()) { throw new TajoInternalError("Schema files are not loaded yet."); } List<DatabaseObject> failedObjects = new ArrayList<>(); Statement stmt = null; try { stmt = conn.createStatement(); } catch (SQLException e) { throw new TajoInternalError(e); } for (DatabaseObject object : catalogStore.getSchema().getObjects()) { try { if (DatabaseObjectType.TABLE == object.getType() || DatabaseObjectType.SEQUENCE == object.getType() || DatabaseObjectType.VIEW == object.getType()) { stmt.executeUpdate(getDropSQL(object.getType(), object.getName())); } } catch (SQLException e) { failedObjects.add(object); } } CatalogUtil.closeQuietly(stmt); if (failedObjects.size() > 0) { StringBuffer errorMessage = new StringBuffer(64); errorMessage.append("Failed to drop database objects "); for (int idx = 0; idx < failedObjects.size(); idx++) { DatabaseObject object = failedObjects.get(idx); errorMessage.append(object.getType().toString()).append(" ").append(object.getName()); if ((idx + 1) < failedObjects.size()) { errorMessage.append(','); } } LOG.warn(errorMessage.toString()); } }
protected List<DatabaseObject> mergeDatabaseObjects(List<DatabaseObject> objects) { int maxIdx = -1; for (DatabaseObject object : objects) { maxIdx = Math.max(maxIdx, object.getOrder()); } final List<DatabaseObject> orderedObjects = createListAndFillNull(maxIdx); final List<DatabaseObject> unorderedObjects = new ArrayList<>(); final List<DatabaseObject> mergedObjects = new ArrayList<>(); for (DatabaseObject object : objects) { if (object.getOrder() > -1) { int objIdx = object.getOrder(); if (objIdx < orderedObjects.size() && orderedObjects.get(objIdx) != null) { throw new TajoInternalError( "This catalog configuration contains duplicated order of DatabaseObject"); } orderedObjects.add(objIdx, object); } else { unorderedObjects.add(object); } } for (DatabaseObject object : orderedObjects) { if (object != null) { mergedObjects.add(object); } } for (DatabaseObject object : unorderedObjects) { if (object != null) { mergedObjects.add(object); } } return mergedObjects; }