Examples with Field com.actiontech.dble.plan.common.field.Field used on opensource projects

Example 6 with Field

use of com.actiontech.dble.plan.common.field.Field in project dble by actiontech.

the class RowDataComparator method cmp.

private int cmp(RowDataPacket o1, RowDataPacket o2, int index) {
    List<byte[]> bo1 = getCmpBytes(o1);
    List<byte[]> bo2 = getCmpBytes(o2);
    boolean isAsc = ascList.get(index);
    Field field = cmpFields.get(index);
    byte[] b1 = bo1.get(index);
    byte[] b2 = bo2.get(index);
    int rs;
    if (isAsc) {
        rs = field.compare(b1, b2);
    } else {
        rs = field.compare(b2, b1);
    }
    if (rs != 0 || cmpFields.size() == (index + 1)) {
        return rs;
    } else {
        return cmp(o1, o2, index + 1);
    }
}

Example 7 with Field

use of com.actiontech.dble.plan.common.field.Field in project dble by actiontech.

the class GetYearValue method get.

@Override
public long get(Item item, Item warnitem, BoolPtr isNull) {
    long value = 0;
    value = item.valInt().longValue();
    isNull.set(item.isNullValue());
    if (isNull.get())
        return 0;
    /*
         * Coerce value to the 19XX form in order to correctly compare YEAR(2) &
         * YEAR(4) types. Here we are converting all item values but YEAR(4)
         * fields since 1) YEAR(4) already has a regular YYYY form and 2) we
         * don't want to convert zero/bad YEAR(4) values to the value of 2000.
         */
    if (item.type() == Item.ItemType.FIELD_ITEM) {
        Field field = ((ItemField) item).getField();
        if (field.fieldType() == FieldTypes.MYSQL_TYPE_YEAR && field.getFieldLength() == 4) {
            if (value < 70)
                value += 100;
            if (value <= 1900)
                value += 1900;
        }
    }
    /* Convert year to DATETIME packed format */
    return MyTime.yearToLonglongDatetimePacked(value);
}

Example 8 with Field

use of com.actiontech.dble.plan.common.field.Field in project dble by actiontech.

the class ShowTables method responseDirect.

private static void responseDirect(ServerConnection c, String cSchema, ShowCreateStmtInfo info) {
    ByteBuffer buffer = c.allocate();
    Map<String, String> tableMap = getTableSet(cSchema, info);
    PackageBufINf bufInf;
    if (info.isFull()) {
        List<FieldPacket> fieldPackets = new ArrayList<>(2);
        bufInf = writeFullTablesHeader(buffer, c, cSchema, fieldPackets);
        if (info.getWhere() != null) {
            MySQLItemVisitor mev = new MySQLItemVisitor(c.getSchema(), c.getCharset().getResultsIndex(), DbleServer.getInstance().getTmManager());
            info.getWhereExpr().accept(mev);
            List<Field> sourceFields = HandlerTool.createFields(fieldPackets);
            Item whereItem = HandlerTool.createItem(mev.getItem(), sourceFields, 0, false, DMLResponseHandler.HandlerType.WHERE);
            bufInf = writeFullTablesRow(bufInf.getBuffer(), c, tableMap, bufInf.getPacketId(), whereItem, sourceFields);
        } else {
            bufInf = writeFullTablesRow(bufInf.getBuffer(), c, tableMap, bufInf.getPacketId(), null, null);
        }
    } else {
        bufInf = writeTablesHeaderAndRows(buffer, c, tableMap, cSchema);
    }
    writeRowEof(bufInf.getBuffer(), c, bufInf.getPacketId());
}

Example 9 with Field

use of com.actiontech.dble.plan.common.field.Field in project dble by actiontech.

the class HandlerTool method findField.

/**
 * findField in sel from start
 *
 * @param sel
 * @param fields
 * @param startIndex
 * @return
 */
public static int findField(Item sel, List<Field> fields, int startIndex) {
    String selName = (sel.getPushDownName() == null ? sel.getItemName() : sel.getPushDownName());
    selName = selName.trim();
    String tableName = sel.getTableName();
    for (int index = startIndex; index < fields.size(); index++) {
        Field field = fields.get(index);
        // field.name==null if '' push down
        String colName2 = field.getName() == null ? null : field.getName().trim();
        String tableName2 = field.getTable();
        if (sel instanceof ItemField && !StringUtil.equalsWithEmpty(tableName, tableName2)) {
            continue;
        }
        if (selName.equalsIgnoreCase(colName2)) {
            return index;
        }
    }
    return -1;
}

Example 10 with Field

use of com.actiontech.dble.plan.common.field.Field in project dble by actiontech.

the class DirectGroupByHandler method fieldEofResponse.

@Override
public void fieldEofResponse(byte[] headerNull, List<byte[]> fieldsNull, final List<FieldPacket> fieldPackets, byte[] eofNull, boolean isLeft, BackendConnection conn) {
    if (terminate.get())
        return;
    if (this.pool == null)
        this.pool = DbleServer.getInstance().getBufferPool();
    this.fieldPackets = fieldPackets;
    List<Field> sourceFields = HandlerTool.createFields(this.fieldPackets);
    for (ItemSum sumFunc : referredSumFunctions) {
        ItemSum sum = (ItemSum) (HandlerTool.createItem(sumFunc, sourceFields, 0, this.isAllPushDown(), this.type()));
        sums.add(sum);
    }
    prepareSumAggregators(sums, true);
    setupSumFunctions(sums);
    /* group fieldpackets are front of the origin */
    sendGroupFieldPackets((MySQLConnection) conn);
    // row in localresult is DGRowPacket which is added aggregate functions result from origin rowdatapacket
    localResultFps = this.fieldPackets;
    List<ItemSum> localResultReferredSums = referredSumFunctions;
    RowDataComparator comparator = new RowDataComparator(this.localResultFps, this.groupBys, this.isAllPushDown(), this.type());
    groupLocalResult = new GroupByLocalResult(pool, localResultFps.size(), comparator, localResultFps, localResultReferredSums, this.isAllPushDown(), CharsetUtil.getJavaCharset(conn.getCharset().getResults())).setMemSizeController(session.getOtherBufferMC());
    for (int i = 0; i < bucketSize; i++) {
        RowDataComparator tmpComparator = new RowDataComparator(this.localResultFps, this.groupBys, this.isAllPushDown(), this.type());
        GroupByBucket bucket = new GroupByBucket(queue, outQueue, pool, localResultFps.size(), tmpComparator, localResultFps, localResultReferredSums, this.isAllPushDown(), CharsetUtil.getJavaCharset(conn.getCharset().getResults()));
        bucket.setMemSizeController(session.getOtherBufferMC());
        buckets.add(bucket);
        bucket.start();
    }
    if (this.groupStart.compareAndSet(false, true)) {
        startOwnThread(conn);
    }
}