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

Example 1 with FieldPacket

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

the class MyCATSequnceProcessor method outRawData.

private void outRawData(ServerConnection sc, String value) {
    byte packetId = 0;
    int fieldCount = 1;
    ByteBuffer byteBuf = sc.allocate();
    ResultSetHeaderPacket headerPkg = new ResultSetHeaderPacket();
    headerPkg.fieldCount = fieldCount;
    headerPkg.packetId = ++packetId;
    byteBuf = headerPkg.write(byteBuf, sc, true);
    FieldPacket fieldPkg = new FieldPacket();
    fieldPkg.packetId = ++packetId;
    fieldPkg.name = StringUtil.encode("SEQUNCE", sc.getCharset());
    byteBuf = fieldPkg.write(byteBuf, sc, true);
    EOFPacket eofPckg = new EOFPacket();
    eofPckg.packetId = ++packetId;
    byteBuf = eofPckg.write(byteBuf, sc, true);
    RowDataPacket rowDataPkg = new RowDataPacket(fieldCount);
    rowDataPkg.packetId = ++packetId;
    rowDataPkg.add(StringUtil.encode(value, sc.getCharset()));
    byteBuf = rowDataPkg.write(byteBuf, sc, true);
    // write last eof
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    byteBuf = lastEof.write(byteBuf, sc, true);
    // write buffer
    sc.write(byteBuf);
}

Example 2 with FieldPacket

use of io.mycat.net.mysql.FieldPacket in project Mycat_plus by coderczp.

the class PackageBufINf method handle.

public static void handle(String stmt, 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;
    PackageBufINf bufInf = null;
    // show log key=warn limit=0,30
    Map<String, String> condPairMap = getCondPair(stmt);
    if (condPairMap.isEmpty()) {
        bufInf = showLogSum(c, buffer, packetId);
    } else {
        String logFile = condPairMap.get("file");
        if (logFile == null) {
            logFile = DEFAULT_LOGFILE;
        }
        String limitStr = condPairMap.get("limit");
        limitStr = (limitStr != null) ? limitStr : "0," + 100000;
        String[] limtArry = limitStr.split("\\s|,");
        int start = Integer.parseInt(limtArry[0]);
        int page = Integer.parseInt(limtArry[1]);
        int end = Integer.valueOf(start + page);
        String key = condPairMap.get("key");
        String regex = condPairMap.get("regex");
        bufInf = showLogRange(c, buffer, packetId, key, regex, start, end, logFile);
    }
    packetId = bufInf.packetId;
    buffer = bufInf.buffer;
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    buffer = lastEof.write(buffer, c, true);
    // write buffer
    c.write(buffer);
}

Example 3 with FieldPacket

use of io.mycat.net.mysql.FieldPacket in project Mycat_plus by coderczp.

the class SelectSessionAutoIncrement 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.packetId = ++packetId;
    row.add(LongUtil.toBytes(1));
    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 4 with FieldPacket

use of io.mycat.net.mysql.FieldPacket in project Mycat_plus by coderczp.

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 5 with FieldPacket

use of io.mycat.net.mysql.FieldPacket in project Mycat_plus by coderczp.

the class ConfFileHandler method handle.

public static void handle(String stmt, 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;
    String theStmt = stmt.toUpperCase().trim();
    PackageBufINf bufInf = null;
    if (theStmt.equals("FILE @@LIST")) {
        bufInf = listConfigFiles(c, buffer, packetId);
    } else if (theStmt.startsWith("FILE @@SHOW")) {
        int index = stmt.lastIndexOf(' ');
        String fileName = stmt.substring(index + 1);
        bufInf = showConfigFile(c, buffer, packetId, fileName);
    } else if (theStmt.startsWith(UPLOAD_CMD)) {
        int index = stmt.indexOf(' ', UPLOAD_CMD.length());
        int index2 = stmt.indexOf(' ', index + 1);
        if (index <= 0 || index2 <= 0 || index + 1 > stmt.length() || index2 + 1 > stmt.length()) {
            bufInf = showInfo(c, buffer, packetId, "Invald param ,usage  ");
        }
        String fileName = stmt.substring(index + 1, index2);
        String content = stmt.substring(index2 + 1).trim();
        bufInf = upLoadConfigFile(c, buffer, packetId, fileName, content);
    } else {
        bufInf = showInfo(c, buffer, packetId, "Invald command ");
    }
    packetId = bufInf.packetId;
    buffer = bufInf.buffer;
    // write last eof
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    buffer = lastEof.write(buffer, c, true);
    // write buffer
    c.write(buffer);
}