Examples with AccessLB api.lb.msec.org.AccessLB used on opensource projects

Example 1 with AccessLB

use of api.lb.msec.org.AccessLB in project MSEC by Tencent.

the class ServiceImpl method getMP3List.

public Msec.GetMP3ListResponse getMP3List(RpcController controller, Msec.GetMP3ListRequest request) throws ServiceException {
    //Add your code here
    AccessMonitor.add("getMP3List_entry");
    String type = request.getType();
    AccessLog.doLog(AccessLog.LOG_LEVEL_DEBUG, "Req:" + request);
    Msec.GetMP3ListResponse.Builder builder = Msec.GetMP3ListResponse.newBuilder();
    if (!(type.equals("special") || type.equals("standard"))) {
        builder.setStatus(100);
        builder.setMsg("invaid type field in request");
        return builder.build();
    }
    String jsonStr = String.format("{\"handleClass\":\"com.bison.GetMP3List\",  \"requestBody\": {\"type\":\"%s\"} }", type);
    String lenStr = String.format("%-10d", jsonStr.getBytes().length);
    AccessLB lb = new AccessLB();
    Route r = new Route();
    Socket socket = new Socket();
    DBUtil util = null;
    try {
        lb.getroutebyname("Database.mysql", r);
        util = new DBUtil(r.getIp() + ":" + r.getPort());
        if (util.getConnection() == null) {
            builder.setStatus(100);
            builder.setMsg("db connect failed!");
            AccessMonitor.add("connect_mysql_fail");
            return builder.build();
        }
        AccessMonitor.add("connect_mysql_succ");
        //get route information
        lb.getroutebyname("Jsoup.jsoup", r);
        if (r.getComm_type() != Route.COMM_TYPE.COMM_TYPE_TCP && r.getComm_type() != Route.COMM_TYPE.COMM_TYPE_ALL) {
            builder.setStatus(100);
            builder.setMsg("tcp is not supported by jsoup");
            return builder.build();
        }
        // connect server
        //20 seconds
        socket.setSoTimeout(20000);
        socket.connect(new InetSocketAddress(r.getIp(), r.getPort()), 2000);
        // send request bytes
        socket.getOutputStream().write(lenStr.getBytes(Charset.forName("utf8")));
        socket.getOutputStream().write(jsonStr.getBytes(Charset.forName("utf8")));
        // recv response bytes
        byte[] buf = new byte[102400];
        int max = 10;
        int total = 0;
        while (total < max) {
            int len = socket.getInputStream().read(buf, total, max - total);
            if (len <= 0) {
                socket.close();
                throw new Exception("recv json length failed");
            }
            total += len;
        }
        max = new Integer(new String(buf, 0, 10, Charset.forName("utf8")).trim()).intValue();
        total = 0;
        while (total < max) {
            int len = socket.getInputStream().read(buf, total, max - total);
            if (len <= 0) {
                socket.close();
                throw new Exception("recv json bytes failed");
            }
            total += len;
        }
        // parse the response json
        JSONObject jsonObject = new JSONObject(new String(buf, 0, total, Charset.forName("utf8")));
        int status = jsonObject.getInt("status");
        if (status != 0) {
            throw new Exception("json string status:" + status);
        }
        JSONArray mp3s = jsonObject.getJSONArray("mp3s");
        for (int i = 0; i < mp3s.length(); i++) {
            JSONObject mp3 = mp3s.getJSONObject(i);
            String title = mp3.getString("title");
            String url = mp3.getString("url");
            Msec.OneMP3.Builder bb = Msec.OneMP3.newBuilder();
            bb.setTitle(title);
            bb.setUrl(url);
            builder.addMp3S(bb.build());
            String sql = "insert into mp3_list(title, url) values(?,?)";
            List<Object> params = new ArrayList<Object>();
            params.add(title);
            params.add(url);
            try {
                int addNum = util.updateByPreparedStatement(sql, params);
                if (addNum < 0) {
                    builder.setMsg("db add record failed.");
                    builder.setStatus(100);
                    return builder.build();
                }
                AccessMonitor.add("access_mysql_succ");
            } catch (SQLException e) {
                builder.setMsg("db add record failed:" + e.toString());
                builder.setStatus(100);
                e.printStackTrace();
                return builder.build();
            }
        }
        AccessMonitor.add("access_jsoup_succ");
        AccessLog.doLog(AccessLog.LOG_LEVEL_INFO, "Resp OK:" + mp3s.length());
        AccessLog.doLog(AccessLog.LOG_LEVEL_ERROR, "Resp OK");
    } catch (Exception e) {
        e.printStackTrace();
        builder.setStatus(100);
        builder.setMsg(e.getMessage());
        AccessMonitor.add("getMP3List_fail");
        return builder.build();
    } finally {
        try {
            socket.close();
        } catch (Exception e) {
        }
        if (util != null && util.getConnection() != null) {
            util.releaseConn();
        }
    }
    builder.setStatus(0);
    builder.setMsg("success");
    return builder.build();
}