Examples with FieldPacket com.actiontech.dble.net.mysql.FieldPacket used on opensource projects

Example 36 with FieldPacket

use of com.actiontech.dble.net.mysql.FieldPacket in project dble by actiontech.

the class ShowTables method writeFullTablesHeader.

public static PackageBufINf writeFullTablesHeader(ByteBuffer buffer, ServerConnection c, String cSchema, List<FieldPacket> fieldPackets) {
    int fieldCount = 2;
    ResultSetHeaderPacket header = PacketUtil.getHeader(fieldCount);
    FieldPacket[] fields = new FieldPacket[fieldCount];
    int i = 0;
    byte packetId = 0;
    header.setPacketId(++packetId);
    fields[i] = PacketUtil.getField("Tables in " + cSchema, Fields.FIELD_TYPE_VAR_STRING);
    fields[i].setPacketId(++packetId);
    fieldPackets.add(fields[i]);
    fields[i + 1] = PacketUtil.getField("Table_type  ", Fields.FIELD_TYPE_VAR_STRING);
    fields[i + 1].setPacketId(++packetId);
    fieldPackets.add(fields[i + 1]);
    EOFPacket eof = new EOFPacket();
    eof.setPacketId(++packetId);
    // write header
    buffer = header.write(buffer, c, true);
    // write fields
    for (FieldPacket field : fields) {
        buffer = field.write(buffer, c, true);
    }
    eof.write(buffer, c, true);
    PackageBufINf packBuffInfo = new PackageBufINf();
    packBuffInfo.setBuffer(buffer);
    packBuffInfo.setPacketId(packetId);
    return packBuffInfo;
}

Example 37 with FieldPacket

use of com.actiontech.dble.net.mysql.FieldPacket 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 38 with FieldPacket

use of com.actiontech.dble.net.mysql.FieldPacket in project dble by actiontech.

the class ShowTables method writeTablesHeaderAndRows.

public static PackageBufINf writeTablesHeaderAndRows(ByteBuffer buffer, ServerConnection c, Map<String, String> tableMap, String cSchema) {
    int fieldCount = 1;
    ResultSetHeaderPacket header = PacketUtil.getHeader(fieldCount);
    FieldPacket[] fields = new FieldPacket[fieldCount];
    int i = 0;
    byte packetId = 0;
    header.setPacketId(++packetId);
    fields[i] = PacketUtil.getField("Tables in " + cSchema, Fields.FIELD_TYPE_VAR_STRING);
    fields[i].setPacketId(++packetId);
    EOFPacket eof = new EOFPacket();
    eof.setPacketId(++packetId);
    // write header
    buffer = header.write(buffer, c, true);
    // write fields
    for (FieldPacket field : fields) {
        buffer = field.write(buffer, c, true);
    }
    // write eof
    eof.write(buffer, c, true);
    for (String name : tableMap.keySet()) {
        RowDataPacket row = new RowDataPacket(fieldCount);
        row.add(StringUtil.encode(name.toLowerCase(), c.getCharset().getResults()));
        row.setPacketId(++packetId);
        buffer = row.write(buffer, c, true);
    }
    PackageBufINf packBuffInfo = new PackageBufINf();
    packBuffInfo.setBuffer(buffer);
    packBuffInfo.setPacketId(packetId);
    return packBuffInfo;
}

Example 39 with FieldPacket

use of com.actiontech.dble.net.mysql.FieldPacket in project dble by actiontech.

the class SelectVersionComment method response.

public static void response(FrontendConnection c) {
    ByteBuffer buffer = c.allocate();
    // write header
    buffer = HEADER.write(buffer, c, true);
    // write fields
    for (FieldPacket field : FIELDS) {
        buffer = field.write(buffer, c, true);
    }
    // write eof
    buffer = EOF.write(buffer, c, true);
    // write rows
    byte packetId = EOF.getPacketId();
    RowDataPacket row = new RowDataPacket(FIELD_COUNT);
    row.add(Versions.VERSION_COMMENT);
    row.setPacketId(++packetId);
    buffer = row.write(buffer, c, true);
    // write last eof
    EOFPacket lastEof = new EOFPacket();
    lastEof.setPacketId(++packetId);
    buffer = lastEof.write(buffer, c, true);
    // post write
    c.write(buffer);
}

Example 40 with FieldPacket

use of com.actiontech.dble.net.mysql.FieldPacket in project dble by actiontech.

the class SessionIncrement method response.

public static void response(ServerConnection c) {
    ByteBuffer buffer = c.allocate();
    buffer = HEADER.write(buffer, c, true);
    for (FieldPacket field : FIELDS) {
        buffer = field.write(buffer, c, true);
    }
    buffer = EOF.write(buffer, c, true);
    byte packetId = EOF.getPacketId();
    RowDataPacket row = new RowDataPacket(FIELD_COUNT);
    row.add(LongUtil.toBytes(1));
    row.setPacketId(++packetId);
    buffer = row.write(buffer, c, true);
    EOFPacket lastEof = new EOFPacket();
    lastEof.setPacketId(++packetId);
    buffer = lastEof.write(buffer, c, true);
    c.write(buffer);
}