Examples with CairoException com.questdb.cairo.CairoException used on opensource projects

Example 1 with CairoException

use of com.questdb.cairo.CairoException in project questdb by bluestreak01.

the class QueryModel method getTableMetadata.

public RecordMetadata getTableMetadata(CairoEngine engine, FlyweightCharSequence charSequence) throws ParserException {
    // table name must not contain quotes by now
    ExprNode readerNode = getTableName();
    int lo = 0;
    int hi = readerNode.token.length();
    if (Chars.startsWith(readerNode.token, NO_ROWID_MARKER)) {
        lo += NO_ROWID_MARKER.length();
    }
    if (lo == hi) {
        throw ParserException.$(readerNode.position, "come on, where is table name?");
    }
    int status = engine.getStatus(readerNode.token, lo, hi);
    if (status == TableUtils.TABLE_DOES_NOT_EXIST) {
        throw ParserException.$(readerNode.position, "table does not exist");
    }
    if (status == TableUtils.TABLE_RESERVED) {
        throw ParserException.$(readerNode.position, "table directory is of unknown format");
    }
    try (TableReader r = engine.getReader(charSequence.of(readerNode.token, lo, hi - lo))) {
        return r.getMetadata();
    } catch (EntryLockedException e) {
        throw ParserException.position(readerNode.position).put("table is locked: ").put(charSequence);
    } catch (CairoException e) {
        throw ParserException.position(readerNode.position).put(e);
    }
}