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

Example 31 with FieldPacket

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

the class ShowTime method execute.

public static void execute(ManagerConnection c, int type) {
    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 = getRow(type, c.getCharset().getResults());
    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 32 with FieldPacket

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

the class ShowWhiteHost method execute.

public static void execute(ManagerConnection 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();
    Map<String, List<UserConfig>> map = DbleServer.getInstance().getConfig().getFirewall().getWhitehost();
    for (Map.Entry<String, List<UserConfig>> entry : map.entrySet()) {
        List<UserConfig> userConfigs = entry.getValue();
        StringBuilder users = new StringBuilder();
        for (int i = 0; i < userConfigs.size(); i++) {
            if (i > 0) {
                users.append(",");
            }
            users.append(userConfigs.get(i).getName());
        }
        RowDataPacket row = getRow(entry.getKey(), users.toString(), c.getCharset().getResults());
        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);
    // write buffer
    c.write(buffer);
}

Example 33 with FieldPacket

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

the class AggregatorDistinct method setup.

/**
 ************************************************************************
 */
/**
 * Called before feeding the first row. Used to allocate/setup the internal
 * structures used for aggregation.
 *
 * @param thd Thread descriptor
 * @return status
 * @throws UnsupportedEncodingException
 * @retval FALSE success
 * @retval TRUE faliure
 * <p>
 * Prepares Aggregator_distinct to process the incoming stream.
 * Creates the temporary table and the Unique class if needed.
 * Called by Item_sum::aggregator_setup()
 */
@Override
public boolean setup() {
    endupDone = false;
    if (itemSum.setup())
        return true;
    // TODO see item_sum.cc for more
    FieldPacket tmp = new FieldPacket();
    itemSum.getArg(0).makeField(tmp);
    field = Field.getFieldItem(tmp.getName(), tmp.getDb(), tmp.getTable(), tmp.getOrgTable(), tmp.getType(), tmp.getCharsetIndex(), (int) tmp.getLength(), tmp.getDecimals(), tmp.getFlags());
    return false;
}

Example 34 with FieldPacket

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

the class ExplainHandler method handle.

public static void handle(String stmt, ServerConnection c, int offset) {
    stmt = stmt.substring(offset).trim();
    RouteResultset rrs = getRouteResultset(c, stmt);
    if (rrs == null) {
        return;
    }
    ByteBuffer buffer = c.allocate();
    // write header
    ResultSetHeaderPacket header = PacketUtil.getHeader(FIELD_COUNT);
    byte packetId = header.getPacketId();
    buffer = header.write(buffer, c, true);
    // write fields
    for (FieldPacket field : FIELDS) {
        field.setPacketId(++packetId);
        buffer = field.write(buffer, c, true);
    }
    // write eof
    EOFPacket eof = new EOFPacket();
    eof.setPacketId(++packetId);
    buffer = eof.write(buffer, c, true);
    if (!rrs.isNeedOptimizer()) {
        // write rows
        for (RouteResultsetNode node : rrs.getNodes()) {
            RowDataPacket row = getRow(node, c.getCharset().getResults());
            row.setPacketId(++packetId);
            buffer = row.write(buffer, c, true);
        }
    } else {
        List<String[]> results = getComplexQueryResult(rrs, c);
        for (String[] result : results) {
            RowDataPacket row = new RowDataPacket(FIELD_COUNT);
            row.add(StringUtil.encode(result[0], c.getCharset().getResults()));
            row.add(StringUtil.encode(result[1], c.getCharset().getResults()));
            row.add(StringUtil.encode(result[2].replaceAll("[\\t\\n\\r]", " "), c.getCharset().getResults()));
            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 35 with FieldPacket

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

the class MysqlInformationSchemaHandler method doWrite.

/**
 * @param fieldCount
 * @param fields
 * @param c
 */
public static void doWrite(int fieldCount, FieldPacket[] fields, ServerConnection c) {
    ByteBuffer buffer = c.allocate();
    // write header
    ResultSetHeaderPacket header = PacketUtil.getHeader(fieldCount);
    byte packetId = header.getPacketId();
    buffer = header.write(buffer, c, true);
    // write fields
    for (FieldPacket field : fields) {
        field.setPacketId(++packetId);
        buffer = field.write(buffer, c, true);
    }
    // write eof
    EOFPacket eof = new EOFPacket();
    eof.setPacketId(++packetId);
    buffer = eof.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);
}