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

Example 51 with FieldPacket

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

the class ShowBackendOld method execute.

public static void execute(ManagerConnection 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;
    String charset = c.getCharset();
    for (BackendConnection bc : NIOProcessor.backends_old) {
        if (bc != null) {
            RowDataPacket row = getRow(bc, charset);
            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 52 with FieldPacket

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

the class ShowDatasourceCluster method response.

public static void response(ManagerConnection c, String stmt) {
    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 (RowDataPacket row : getRows(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 53 with FieldPacket

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

the class ShowDirectMemory method showDirectMemoryDetail.

public static void showDirectMemoryDetail(ManagerConnection c) {
    ByteBuffer buffer = c.allocate();
    // write header
    buffer = detailHeader.write(buffer, c, true);
    // write fields
    for (FieldPacket field : detailFields) {
        buffer = field.write(buffer, c, true);
    }
    // write eof
    buffer = detailEof.write(buffer, c, true);
    // write rows
    byte packetId = detailEof.packetId;
    int useOffHeapForMerge = MycatServer.getInstance().getConfig().getSystem().getUseOffHeapForMerge();
    ConcurrentHashMap<Long, Long> networkbufferpool = MycatServer.getInstance().getBufferPool().getNetDirectMemoryUsage();
    try {
        if (useOffHeapForMerge == 1) {
            ConcurrentHashMap<Long, Long> concurrentHashMap = MycatServer.getInstance().getMyCatMemory().getResultMergeMemoryManager().getDirectMemorUsage();
            for (Long key : concurrentHashMap.keySet()) {
                RowDataPacket row = new RowDataPacket(DETAILl_FIELD_COUNT);
                Long value = concurrentHashMap.get(key);
                row.add(String.valueOf(key).getBytes(c.getCharset()));
                /**
                     * 该DIRECTMEMORY内存被结果集处理使用了
                     */
                row.add("MergeMemoryPool".getBytes(c.getCharset()));
                row.add(value > 0 ? JavaUtils.bytesToString2(value).getBytes(c.getCharset()) : "0".getBytes(c.getCharset()));
                row.packetId = ++packetId;
                buffer = row.write(buffer, c, true);
            }
        }
        for (Long key : networkbufferpool.keySet()) {
            RowDataPacket row = new RowDataPacket(DETAILl_FIELD_COUNT);
            Long value = networkbufferpool.get(key);
            row.add(String.valueOf(key).getBytes(c.getCharset()));
            /**
                 * 该DIRECTMEMORY内存属于Buffer Pool管理的！
                 */
            row.add("NetWorkBufferPool".getBytes(c.getCharset()));
            row.add(value > 0 ? JavaUtils.bytesToString2(value).getBytes(c.getCharset()) : "0".getBytes(c.getCharset()));
            row.packetId = ++packetId;
            buffer = row.write(buffer, c, true);
        }
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }
    // write last eof
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    buffer = lastEof.write(buffer, c, true);
    // write buffer
    c.write(buffer);
}

Example 54 with FieldPacket

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

the class ShowHeartbeat method response.

public static void response(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 (RowDataPacket row : getRows()) {
        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 55 with FieldPacket

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

the class ShowVersion 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(Versions.SERVER_VERSION);
    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);
}