public void createBaseSchema(Connection conn) {
Statement stmt;
if (!isLoaded()) {
throw new TajoInternalError("Database schema files are not loaded.");
}
try {
stmt = conn.createStatement();
} catch (SQLException e) {
throw new TajoInternalError(e);
}
for (DatabaseObject object : catalogStore.getSchema().getObjects()) {
try {
String[] params;
if (DatabaseObjectType.INDEX == object.getType()) {
params = new String[2];
params[0] = object.getDependsOn();
params[1] = object.getName();
} else {
params = new String[1];
params[0] = object.getName();
}
if (checkExistence(conn, object.getType(), params)) {
LOG.info("Skip to create " + object.getName() + " databse object. Already exists.");
} else {
stmt.executeUpdate(object.getSql());
LOG.info(object.getName() + " " + object.getType() + " is created.");
}
} catch (SQLException e) {
throw new TajoInternalError(e);
}
}
CatalogUtil.closeQuietly(stmt);
}
public boolean isInitialized(Connection conn) {
if (!isLoaded()) {
throw new TajoInternalError("Database schema files are not loaded.");
}
boolean result = true;
for (DatabaseObject object : catalogStore.getSchema().getObjects()) {
try {
if (DatabaseObjectType.INDEX == object.getType()) {
result &= checkExistence(conn, object.getType(), object.getDependsOn(), object.getName());
} else {
result &= checkExistence(conn, object.getType(), object.getName());
}
} catch (SQLException e) {
throw new TajoInternalError(e);
}
if (!result) {
break;
}
}
return result;
}