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

Example 96 with RowDataPacket

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

the class SelectVersionComment 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.packetId;
    RowDataPacket row = new RowDataPacket(FIELD_COUNT);
    row.add(VERSION_COMMENT);
    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 97 with RowDataPacket

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

the class ReloadZktoXml method execute.

public static void execute(ManagerConnection c, String rsp) {
    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.packetId;
    RowDataPacket row = getRow(rsp, 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 98 with RowDataPacket

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

the class PackageBufINf method showLogSum.

private static PackageBufINf showLogSum(ManagerConnection c, ByteBuffer buffer, byte packetId) {
    PackageBufINf bufINf = new PackageBufINf();
    File[] logFiles = new File(SystemConfig.getHomePath(), "logs").listFiles();
    String fileNames = "";
    for (File f : logFiles) {
        if (f.isFile()) {
            fileNames += "  " + f.getName();
        }
    }
    File file = getLogFile(DEFAULT_LOGFILE);
    BufferedReader br = null;
    int totalLines = 0;
    CircularArrayList<String> queue = new CircularArrayList<String>(50);
    try {
        br = new BufferedReader(new FileReader(file));
        String line = null;
        while ((line = br.readLine()) != null) {
            totalLines++;
            if (queue.size() == queue.capacity()) {
                queue.remove(0);
            }
            queue.add(line);
        }
        RowDataPacket row = new RowDataPacket(FIELD_COUNT);
        row.add(StringUtil.encode("files in log dir:" + totalLines + fileNames, c.getCharset()));
        row.packetId = ++packetId;
        buffer = row.write(buffer, c, true);
        row = new RowDataPacket(FIELD_COUNT);
        row.add(StringUtil.encode("Total lines " + totalLines + " ,tail " + queue.size() + " line is following:", c.getCharset()));
        row.packetId = ++packetId;
        buffer = row.write(buffer, c, true);
        int size = queue.size() - 1;
        for (int i = size; i >= 0; i--) {
            String data = queue.get(i);
            row = new RowDataPacket(FIELD_COUNT);
            row.add(StringUtil.encode(data, c.getCharset()));
            row.packetId = ++packetId;
            buffer = row.write(buffer, c, true);
        }
        bufINf.buffer = buffer;
        bufINf.packetId = packetId;
        return bufINf;
    } catch (Exception e) {
        LOGGER.error("showLogSumError", e);
        RowDataPacket row = new RowDataPacket(FIELD_COUNT);
        row.add(StringUtil.encode(e.toString(), c.getCharset()));
        row.packetId = ++packetId;
        buffer = row.write(buffer, c, true);
        bufINf.buffer = buffer;
    } finally {
        if (br != null) {
            try {
                br.close();
            } catch (IOException e) {
                LOGGER.error("showLogSumError", e);
            }
        }
    }
    bufINf.packetId = packetId;
    return bufINf;
}

Example 99 with RowDataPacket

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

the class ShowSession method getRow.

private static RowDataPacket getRow(ServerConnection sc, String charset) {
    StringBuilder sb = new StringBuilder();
    NonBlockingSession ssesion = sc.getSession2();
    Collection<BackendConnection> backConnections = ssesion.getTargetMap().values();
    int cncount = backConnections.size();
    if (cncount == 0) {
        return null;
    }
    for (BackendConnection backCon : backConnections) {
        sb.append(backCon).append("\r\n");
    }
    RowDataPacket row = new RowDataPacket(FIELD_COUNT);
    row.add(StringUtil.encode(sc.getId() + "", charset));
    row.add(StringUtil.encode(cncount + "", charset));
    row.add(StringUtil.encode(sb.toString(), charset));
    return row;
}

Example 100 with RowDataPacket

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

the class ShowSession 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.packetId;
    for (NIOProcessor process : MycatServer.getInstance().getProcessors()) {
        for (FrontendConnection front : process.getFrontends().values()) {
            if (!(front instanceof ServerConnection)) {
                continue;
            }
            ServerConnection sc = (ServerConnection) front;
            RowDataPacket row = getRow(sc, c.getCharset());
            if (row != null) {
                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);
    // write buffer
    c.write(buffer);
}