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

Example 36 with FieldPacket

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

the class PreparedStmtResponse method response.

public static void response(PreparedStatement pstmt, FrontendConnection c) {
    byte packetId = 0;
    // write preparedOk packet
    PreparedOkPacket preparedOk = new PreparedOkPacket();
    preparedOk.packetId = ++packetId;
    preparedOk.statementId = pstmt.getId();
    preparedOk.columnsNumber = pstmt.getColumnsNumber();
    preparedOk.parametersNumber = pstmt.getParametersNumber();
    ByteBuffer buffer = preparedOk.write(c.allocate(), c, true);
    // write parameter field packet
    int parametersNumber = preparedOk.parametersNumber;
    if (parametersNumber > 0) {
        for (int i = 0; i < parametersNumber; i++) {
            FieldPacket field = new FieldPacket();
            field.packetId = ++packetId;
            buffer = field.write(buffer, c, true);
        }
        EOFPacket eof = new EOFPacket();
        eof.packetId = ++packetId;
        buffer = eof.write(buffer, c, true);
    }
    // write column field packet
    int columnsNumber = preparedOk.columnsNumber;
    if (columnsNumber > 0) {
        for (int i = 0; i < columnsNumber; i++) {
            FieldPacket field = new FieldPacket();
            field.packetId = ++packetId;
            buffer = field.write(buffer, c, true);
        }
        EOFPacket eof = new EOFPacket();
        eof.packetId = ++packetId;
        buffer = eof.write(buffer, c, true);
    }
    // send buffer
    c.write(buffer);
}

Example 37 with FieldPacket

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

the class SelectVariables method execute.

public static void execute(ServerConnection c, String sql) {
    String subSql = sql.substring(sql.indexOf("SELECT") + 6);
    List<String> splitVar = Splitter.on(",").omitEmptyStrings().trimResults().splitToList(subSql);
    splitVar = convert(splitVar);
    int FIELD_COUNT = splitVar.size();
    ResultSetHeaderPacket header = PacketUtil.getHeader(FIELD_COUNT);
    FieldPacket[] fields = new FieldPacket[FIELD_COUNT];
    int i = 0;
    byte packetId = 0;
    header.packetId = ++packetId;
    for (int i1 = 0, splitVarSize = splitVar.size(); i1 < splitVarSize; i1++) {
        String s = splitVar.get(i1);
        fields[i] = PacketUtil.getField(s, Fields.FIELD_TYPE_VAR_STRING);
        fields[i++].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);
    }
    EOFPacket eof = new EOFPacket();
    eof.packetId = ++packetId;
    // write eof
    buffer = eof.write(buffer, c, true);
    // write rows
    //byte packetId = eof.packetId;
    RowDataPacket row = new RowDataPacket(FIELD_COUNT);
    for (int i1 = 0, splitVarSize = splitVar.size(); i1 < splitVarSize; i1++) {
        String s = splitVar.get(i1);
        String value = variables.get(s) == null ? "" : variables.get(s);
        row.add(value.getBytes());
    }
    row.packetId = ++packetId;
    buffer = row.write(buffer, c, true);
    // write lastEof
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    buffer = lastEof.write(buffer, c, true);
    // write buffer
    c.write(buffer);
}

Example 38 with FieldPacket

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

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.packetId;
    RowDataPacket row = new RowDataPacket(FIELD_COUNT);
    row.add(LongUtil.toBytes(1));
    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);
}

Example 39 with FieldPacket

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

the class SessionIsolation 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.packetId;
    RowDataPacket row = new RowDataPacket(FIELD_COUNT);
    row.add(StringUtil.encode("REPEATABLE-READ", c.getCharset()));
    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);
}

Example 40 with FieldPacket

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

the class JDBCConnection method getNewFieldPacket.

private FieldPacket getNewFieldPacket(String charset, String fieldName) {
    FieldPacket fieldPacket = new FieldPacket();
    fieldPacket.orgName = StringUtil.encode(fieldName, charset);
    fieldPacket.name = StringUtil.encode(fieldName, charset);
    fieldPacket.length = 20;
    fieldPacket.flags = 0;
    fieldPacket.decimals = 0;
    int javaType = 12;
    fieldPacket.type = (byte) (MysqlDefs.javaTypeMysql(javaType) & 0xff);
    return fieldPacket;
}