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
|
/*
* This file is part of PetaScope.
*
* PetaScope is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* PetaScope 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with PetaScope. If not, see <http://www.gnu.org/licenses/>.
*
* For more information please see <http://www.PetaScope.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*
* Copyright 2009 Jacobs University Bremen, Peter Baumann.
*/
package petascope.wcps.server.core;
import petascope.wcps.server.exceptions.WCPSException;
import org.w3c.dom.*;
public class ComplexConstant implements IRasNode {
private String re, im;
public ComplexConstant(String str) throws WCPSException {
boolean ok = true;
// We only accept the following String representation of a complex number: {re,im}
if (str.startsWith("{") && str.endsWith("}")) {
str = str.substring(1, str.length() - 2);
if (str.indexOf(",") != -1 && str.lastIndexOf(",") != str.indexOf(",")) {
int comma = str.indexOf(",");
re = str.substring(0, comma - 1);
im = str.substring(comma + 1, str.length() - comma - 1);
} else {
ok = false;
}
} else {
ok = false;
}
if (ok == false) {
throw new WCPSException("Could not parse Complex Constant !");
}
// parse the real part
try {
Integer real = Integer.parseInt(re);
} catch (NumberFormatException e) {
try {
Float real = Float.parseFloat(re);
} catch (NumberFormatException e2) {
throw new WCPSException("Could not parse float or integer "
+ "number for real part of complex number:" + re);
}
}
// parse the imaginary part
try {
Integer imag = Integer.parseInt(im);
} catch (NumberFormatException e) {
try {
Float imag = Float.parseFloat(im);
} catch (NumberFormatException e2) {
throw new WCPSException("Could not parse float or integer "
+ "number for imaginary part of complex number" + im);
}
}
}
public ComplexConstant(Node node, XmlQuery xq) throws WCPSException {
System.err.println("Parsing complex constant: " + node.getNodeName());
while ((node != null) && node.getNodeName().equals("#text")) {
node = node.getNextSibling();
}
while (node != null) {
String name = node.getNodeName();
if (name.equals("re")) {
re = node.getNodeValue();
} else if (name.equals("im")) {
im = node.getNodeValue();
} else {
throw new WCPSException("Unknown node while processing complex constant: " + name);
}
node = node.getNextSibling();
}
// parse the real part
try {
Integer real = Integer.parseInt(re);
} catch (NumberFormatException e) {
try {
Float real = Float.parseFloat(re);
} catch (NumberFormatException e2) {
throw new WCPSException("Could not parse float or integer "
+ "number for real part of complex number:" + re);
}
}
// parse the imaginary part
try {
Integer imag = Integer.parseInt(im);
} catch (NumberFormatException e) {
try {
Float imag = Float.parseFloat(im);
} catch (NumberFormatException e2) {
throw new WCPSException("Could not parse float or integer "
+ "number for imaginary part of complex number" + im);
}
}
}
public String toRasQL() {
return "complex ( " + re + ", " + im + " ) ";
}
}
|
