1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
//# msselect.cc: Create a persistent selection of an MS
//# Copyright (C) 2005
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: casa-feedback@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
#include <casacore/ms/MSSel/MSSelection.h>
#include <casacore/tables/Tables/TableRecord.h>
#include <casacore/casa/Inputs/Input.h>
#include <casacore/casa/OS/DirectoryIterator.h>
#include <casacore/casa/OS/File.h>
#include <casacore/casa/OS/SymLink.h>
#include <casacore/casa/Arrays/ArrayMath.h>
#include <iostream>
using namespace casacore;
using namespace std;
void select (const String& msin, const String& out, const String& baseline,
bool deep)
{
MeasurementSet ms(msin);
MSSelection select;
// Set given selection strings.
if (!baseline.empty()) {
select.setAntennaExpr (baseline);
}
// Create the selection table expression for the MS.
TableExprNode node = select.toTableExprNode (&ms);
// Make the selection and write the resulting RefTable.
// If no selection was made, create it explicitly from all rows
// to be sure there is a RefTable.
Table mssel = ms(node);
if (mssel.nrow() == ms.nrow()) {
RowNumbers allRows(ms.nrow());
indgen (allRows);
mssel = ms(allRows);
}
if (deep) {
mssel.deepCopy (out, Table::New);
cout << "Created MeasurementSet " << out;
} else {
mssel.rename (out, Table::New);
cout << "Created RefTable " << out;
}
cout << " containing " << mssel.nrow() << " rows (out of "
<< ms.nrow() << ')' << endl;
}
// Copy (or symlink) directories that are not a subtable.
// In that way possible instrument and sky model tables can be copied.
void copyOtherDirs (const String& msName, const String& outName, bool deep)
{
// Get all table keywords.
Table tab(msName);
const TableRecord& keys = tab.keywordSet();
// Loop over all files in the MS directory.
Directory dir(msName);
DirectoryIterator iter(dir);
for (DirectoryIterator iter(dir); !iter.pastEnd(); ++iter) {
// Test if a directory basename (also via a symlink) is a subtable.
// If not, it is an extra directory that needs to be copied.
if (iter.file().isDirectory()) {
String bname = iter.file().path().baseName();
if (!(keys.isDefined(bname) && keys.dataType(bname) == TpTable)) {
if (deep) {
Directory sdir(iter.file());
sdir.copyRecursive (outName + '/' + bname);
cout << "Copied subdirectory " << bname << endl;
} else {
// Resolve a possible symlink created by another msselect.
// Do it only one deep.
Path newName;
if (iter.file().isSymLink()) {
newName = SymLink(iter.file()).readSymLink();
} else {
newName = iter.file().path();
}
// Create a symlink to the directory.
SymLink slink(outName + '/' + bname);
slink.create (newName.absoluteName(), False);
cout << "Created symlink to subdirectory " << bname << endl;
}
}
}
}
}
int main (int argc, char* argv[])
{
try {
// enable input in no-prompt mode
Input inputs(1);
// define the input structure
inputs.version("20130819GvD");
inputs.create ("in", "",
"Name of input MeasurementSet",
"string");
inputs.create ("out", "",
"Name of output table",
"string");
inputs.create ("deep", "false",
"Is the output a deep copy of the MeasurementSet selection?",
"bool");
inputs.create ("baseline", "",
"Selection string for antennae and baselines",
"string");
/*
inputs.create ("time", "",
"selection string for times",
"string");
inputs.create ("uv", "",
"selection string for uv distance",
"string");
*/
// Fill the input structure from the command line.
inputs.readArguments (argc, argv);
// Get and check the input specification.
String msin (inputs.getString("in"));
if (msin.empty()) {
throw AipsError(" an input MeasurementSet must be given");
}
// Get the output name.
String out(inputs.getString("out"));
if (out.empty()) {
throw AipsError(" an output table name must be given");
}
// Get the deep option.
bool deep = inputs.getBool("deep");
// Get the baseline selection string.
string baseline(inputs.getString("baseline"));
// Do the selection and copying.
select (msin, out, baseline, deep);
copyOtherDirs (msin, out, deep);
} catch (std::exception& x) {
cerr << "Error: " << x.what() << endl;
return 1;
}
return 0;
}
|
