Examples with FieldPacket io.mycat.net.mysql.FieldPacket used on opensource projects

Example 66 with FieldPacket

use of io.mycat.net.mysql.FieldPacket in project Mycat-Server by MyCATApache.

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.packetId;
    buffer = header.write(buffer, c, true);
    // write fields
    for (FieldPacket field : fields) {
        field.packetId = ++packetId;
        buffer = field.write(buffer, c, true);
    }
    // write eof
    EOFPacket eof = new EOFPacket();
    eof.packetId = ++packetId;
    buffer = eof.write(buffer, c, true);
    // write rows
    RouteResultsetNode[] rrsn = rrs.getNodes();
    for (RouteResultsetNode node : rrsn) {
        RowDataPacket row = getRow(node, c.getCharset());
        row.packetId = ++packetId;
        buffer = row.write(buffer, c, true);
    }
    // write last eof
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    buffer = lastEof.write(buffer, c, true);
    // post write
    c.write(buffer);
}

Example 67 with FieldPacket

use of io.mycat.net.mysql.FieldPacket in project Mycat-Server by MyCATApache.

the class MysqlInformationSchemaHandler method doWrite.

/**
	 * 写入数据包
	 * @param field_count
	 * @param fields
	 * @param c
	 */
private static void doWrite(int field_count, FieldPacket[] fields, ServerConnection c) {
    ByteBuffer buffer = c.allocate();
    // write header
    ResultSetHeaderPacket header = PacketUtil.getHeader(field_count);
    byte packetId = header.packetId;
    buffer = header.write(buffer, c, true);
    // write fields
    for (FieldPacket field : fields) {
        field.packetId = ++packetId;
        buffer = field.write(buffer, c, true);
    }
    // write eof
    EOFPacket eof = new EOFPacket();
    eof.packetId = ++packetId;
    buffer = eof.write(buffer, c, true);
    // write last eof
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    buffer = lastEof.write(buffer, c, true);
    // post write
    c.write(buffer);
}

Example 68 with FieldPacket

use of io.mycat.net.mysql.FieldPacket in project Mycat-Server by MyCATApache.

the class MysqlProcHandler method handle.

public static void handle(String stmt, ServerConnection c) {
    ByteBuffer buffer = c.allocate();
    // write header
    ResultSetHeaderPacket header = PacketUtil.getHeader(FIELD_COUNT);
    byte packetId = header.packetId;
    buffer = header.write(buffer, c, true);
    // write fields
    for (FieldPacket field : fields) {
        field.packetId = ++packetId;
        buffer = field.write(buffer, c, true);
    }
    // write eof
    EOFPacket eof = new EOFPacket();
    eof.packetId = ++packetId;
    buffer = eof.write(buffer, c, true);
    // write last eof
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    buffer = lastEof.write(buffer, c, true);
    // post write
    c.write(buffer);
}

Example 69 with FieldPacket

use of io.mycat.net.mysql.FieldPacket in project Mycat-Server by MyCATApache.

the class InformationSchemaProfiling method response.

/**
	 * response method.
	 * @param c
	 */
public static void response(ServerConnection c) {
    int i = 0;
    byte packetId = 0;
    header.packetId = ++packetId;
    fields[i] = PacketUtil.getField("State", Fields.FIELD_TYPE_VAR_STRING);
    fields[i].packetId = ++packetId;
    fields[i + 1] = PacketUtil.getField("Duration", Fields.FIELD_TYPE_DECIMAL);
    fields[i + 1].packetId = ++packetId;
    fields[i + 2] = PacketUtil.getField("Percentage", Fields.FIELD_TYPE_DECIMAL);
    fields[i + 2].packetId = ++packetId;
    eof.packetId = ++packetId;
    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
    packetId = eof.packetId;
    // write last eof
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    buffer = lastEof.write(buffer, c, true);
    // post write
    c.write(buffer);
}

Example 70 with FieldPacket

use of io.mycat.net.mysql.FieldPacket in project Mycat-Server by MyCATApache.

the class SelectConnnectID method response.

public static void response(ServerConnection c) {
    if (MycatServer.getInstance().isOnline()) {
        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.packetId;
        RowDataPacket row = new RowDataPacket(FIELD_COUNT);
        row.add(getConnectID(c));
        row.packetId = ++packetId;
        buffer = row.write(buffer, c, true);
        EOFPacket lastEof = new EOFPacket();
        lastEof.packetId = ++packetId;
        buffer = lastEof.write(buffer, c, true);
        c.write(buffer);
    } else {
        error.write(c);
    }
}