| 1 | // Part of BNC, a utility for retrieving decoding and
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| 2 | // converting GNSS data streams from NTRIP broadcasters.
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| 3 | //
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| 4 | // Copyright (C) 2007
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| 5 | // German Federal Agency for Cartography and Geodesy (BKG)
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| 6 | // http://www.bkg.bund.de
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| 7 | // Czech Technical University Prague, Department of Geodesy
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| 8 | // http://www.fsv.cvut.cz
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| 9 | //
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| 10 | // Email: euref-ip@bkg.bund.de
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| 11 | //
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| 12 | // This program is free software; you can redistribute it and/or
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| 13 | // modify it under the terms of the GNU General Public License
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| 14 | // as published by the Free Software Foundation, version 2.
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| 15 | //
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| 16 | // This program is distributed in the hope that it will be useful,
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| 17 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | // GNU General Public License for more details.
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| 20 | //
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| 21 | // You should have received a copy of the GNU General Public License
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| 22 | // along with this program; if not, write to the Free Software
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| 23 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 24 |
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| 25 | /* -------------------------------------------------------------------------
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| 26 | * BKG NTRIP Client
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| 27 | * -------------------------------------------------------------------------
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| 28 | *
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| 29 | * Class: t_corrFile
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| 30 | *
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| 31 | * Purpose: Reads DGPS Correction File
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| 32 | *
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| 33 | * Author: L. Mervart
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| 34 | *
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| 35 | * Created: 12-Feb-2012
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| 36 | *
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| 37 | * Changes:
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| 38 | *
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| 39 | * -----------------------------------------------------------------------*/
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| 40 |
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| 41 | #include <iostream>
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| 42 | #include "corrfile.h"
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| 43 | #include "bncutils.h"
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| 44 | #include "bncephuser.h"
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| 45 |
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| 46 | using namespace std;
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| 47 |
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| 48 | // Constructor
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| 49 | ////////////////////////////////////////////////////////////////////////////
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| 50 | t_corrFile::t_corrFile(QString fileName) {
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| 51 | expandEnvVar(fileName);
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| 52 | _file = new QFile(fileName);
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| 53 | _file->open(QIODevice::ReadOnly | QIODevice::Text);
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| 54 | _stream = new QTextStream();
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| 55 | _stream->setDevice(_file);
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| 56 | }
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| 57 |
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| 58 | // Destructor
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| 59 | ////////////////////////////////////////////////////////////////////////////
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| 60 | t_corrFile::~t_corrFile() {
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| 61 | delete _stream;
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| 62 | delete _file;
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| 63 | }
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| 64 |
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| 65 | // Read till a given time
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| 66 | ////////////////////////////////////////////////////////////////////////////
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| 67 | void t_corrFile::syncRead(const bncTime& tt) {
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| 68 |
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| 69 | if (stopRead(tt)) {
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| 70 | return;
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| 71 | }
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| 72 |
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| 73 | QStringList lines;
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| 74 |
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| 75 | if (!_lastLine.isEmpty()) {
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| 76 | lines << _lastLine;
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| 77 | }
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| 78 |
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| 79 | while (_stream->status() == QTextStream::Ok && !_stream->atEnd()) {
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| 80 | QString line = _stream->readLine();
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| 81 | if (line.isEmpty() || line[0] == '!') {
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| 82 | continue;
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| 83 | }
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| 84 | _lastLine = line;
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| 85 |
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| 86 | if (stopRead(tt)) {
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| 87 | QList<t_orbCorr> orbCorr;
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| 88 | QList<t_clkCorr> clkCorr;
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| 89 | QListIterator<QString> it(lines);
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| 90 | while (it.hasNext()) {
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| 91 | const QString& str = it.next();
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| 92 | if (str[0] == 'C') {
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| 93 | t_clkCorr corr(str.toAscii().data());
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| 94 | _lastTime = corr._time;
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| 95 | _corrIODs[QString(corr._prn.toString().c_str())] = corr.IOD();
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| 96 | clkCorr.push_back(corr);
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| 97 | }
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| 98 | else if (str[0] == 'O') {
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| 99 | t_orbCorr corr(str.toAscii().data());
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| 100 | _lastTime = corr._time;
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| 101 | _corrIODs[QString(corr._prn.toString().c_str())] = corr.IOD();
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| 102 | orbCorr.push_back(corr);
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| 103 | }
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| 104 | }
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| 105 | if (orbCorr.size() > 0) {
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| 106 | emit newOrbCorrections(orbCorr);
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| 107 | }
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| 108 | if (clkCorr.size() > 0) {
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| 109 | emit newClkCorrections(clkCorr);
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| 110 | }
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| 111 | return;
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| 112 | }
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| 113 | else {
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| 114 | lines << _lastLine;
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| 115 | }
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| 116 | }
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| 117 | }
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| 118 |
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| 119 | // Read till a given time
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| 120 | ////////////////////////////////////////////////////////////////////////////
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| 121 | bool t_corrFile::stopRead(const bncTime& tt) {
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| 122 |
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| 123 | if (_lastTime.undef()) {
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| 124 | return false;
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| 125 | }
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| 126 |
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| 127 | if (_lastTime > tt) {
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| 128 | return true;
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| 129 | }
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| 130 | else {
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| 131 | return false;
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| 132 | }
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| 133 | }
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