source: ntrip/trunk/BNC/bncrawfile.cpp@ 2957

Last change on this file since 2957 was 2543, checked in by mervart, 14 years ago
File size: 4.4 KB
Line 
1// Part of BNC, a utility for retrieving decoding and
2// converting GNSS data streams from NTRIP broadcasters.
3//
4// Copyright (C) 2007
5// German Federal Agency for Cartography and Geodesy (BKG)
6// http://www.bkg.bund.de
7// Czech Technical University Prague, Department of Geodesy
8// http://www.fsv.cvut.cz
9//
10// Email: euref-ip@bkg.bund.de
11//
12// This program is free software; you can redistribute it and/or
13// modify it under the terms of the GNU General Public License
14// as published by the Free Software Foundation, version 2.
15//
16// This program is distributed in the hope that it will be useful,
17// but WITHOUT ANY WARRANTY; without even the implied warranty of
18// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19// GNU General Public License for more details.
20//
21// You should have received a copy of the GNU General Public License
22// along with this program; if not, write to the Free Software
23// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24
25/* -------------------------------------------------------------------------
26 * BKG NTRIP Client
27 * -------------------------------------------------------------------------
28 *
29 * Class: bncRawFile
30 *
31 * Purpose: This class stores/reads BNC raw file
32 *
33 * Author: L. Mervart
34 *
35 * Created: 23-Aug-2010
36 *
37 * Changes:
38 *
39 * -----------------------------------------------------------------------*/
40
41#include "bncrawfile.h"
42#include "bncapp.h"
43#include "bncutils.h"
44
45using namespace std;
46
47#define RAW_FILE_VERSION "1"
48
49// Constructor
50////////////////////////////////////////////////////////////////////////////
51bncRawFile::bncRawFile(const QByteArray& fileName, const QByteArray& format,
52 inpOutFlag ioFlg) {
53 _fileName = fileName; expandEnvVar(_fileName);
54 _format = format;
55 _staID = fileName.mid(fileName.lastIndexOf(QDir::separator())+1,5);
56 _inpFile = 0;
57 _outFile = 0;
58 _version = 0;
59
60 // Initialize for Input
61 // --------------------
62 if (ioFlg == input) {
63 _inpFile = new QFile(_fileName);
64 _inpFile->open(QIODevice::ReadOnly);
65 QString line = _inpFile->readLine();
66 QStringList lst = line.split(' ');
67 _version = lst.value(0).toInt();
68 }
69
70 // Initialize for Output
71 // ---------------------
72 else {
73 QDate currDate = currentDateAndTimeGPS().date();
74 _currentFileName = _fileName + "_" + currDate.toString("yyMMdd");
75 _outFile = new QFile(_currentFileName);
76 _outFile->open(QIODevice::WriteOnly);
77 _outFile->write(RAW_FILE_VERSION " Version of BNC raw file");
78 }
79}
80
81// Destructor
82////////////////////////////////////////////////////////////////////////////
83bncRawFile::~bncRawFile() {
84 delete _inpFile;
85 delete _outFile;
86}
87
88// Raw Output
89////////////////////////////////////////////////////////////////////////////
90void bncRawFile::writeRawData(const QByteArray& data, const QByteArray& staID,
91 const QByteArray& format) {
92 if (_outFile) {
93 QDate currDate = currentDateAndTimeGPS().date();
94 QString hlp = _fileName + "_" + currDate.toString("yyMMdd");
95 if (hlp != _currentFileName) {
96 _currentFileName = hlp;
97 delete _outFile;
98 _outFile = new QFile(_currentFileName);
99 _outFile->open(QIODevice::WriteOnly);
100 _outFile->write(RAW_FILE_VERSION " Version of BNC raw file");
101 }
102
103 QString chunkHeader = QString("\n%1 %2 %3 %4\n")
104 .arg(currentDateAndTimeGPS().toString(Qt::ISODate))
105 .arg(QString(staID))
106 .arg(QString(format))
107 .arg(data.size());
108 _outFile->write(chunkHeader.toAscii());
109 _outFile->write(data);
110 _outFile->flush();
111 }
112}
113
114
115// Raw Input
116////////////////////////////////////////////////////////////////////////////
117QByteArray bncRawFile::readChunk(){
118
119 QByteArray data;
120
121 if (_inpFile) {
122 QString line = _inpFile->readLine();
123 if (line.indexOf("Version of BNC raw file") != -1) {
124 line = _inpFile->readLine();
125 }
126 if (!line.isEmpty()) {
127 QStringList lst = line.split(' ');
128
129 bncApp* app = (bncApp*) qApp;
130 delete app->_currentDateAndTimeGPS;
131 app->_currentDateAndTimeGPS =
132 new QDateTime(QDateTime::fromString(lst.value(0), Qt::ISODate));
133
134 _staID = lst.value(1).toAscii();
135 _format = lst.value(2).toAscii();
136 int nBytes = lst.value(3).toInt();
137
138 data = _inpFile->read(nBytes);
139
140 _inpFile->read(1); // read '\n' character
141 }
142 }
143
144 return data;
145}
146
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