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
|
/**
* Class to test the integration of jpylyzer with java
* needs jython to work
*
* Usage sample :
* javac CallJpylyzer.java
* CLASSPATH="jython-standalone-2.7.0.jar;." java CallJpylyzer . example_files/balloon.jp2
*/
import java.io.File;
import java.util.logging.Logger;
import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
public class CallJpylyzer {
private static String jpylyzerHome = null;
private static final Logger LOGGER = Logger.getLogger(CallJpylyzer.class.getName());
private static void declarePythonFunctionInEngine(ScriptEngine engine) throws Exception {
if (engine == null) {
throw new Exception("Script Engine 'python' not found!");
}
final String pythonCharacterizeFunction =
"from jpylyzer.jpylyzer import checkOneFile\n"
+ "import xml.etree.ElementTree as ETree\n"
+ "\ndef pythonCharacterize(file):\n"
+ "\txmlElement = checkOneFile(file)\n"
+ "\treturn ETree.tostring(xmlElement, encoding='utf8', method='xml')\n"
+ "\n";
try {
engine.eval(pythonCharacterizeFunction);
} catch (ScriptException e) {
throw new Exception("Definition of pythonCharacterize function could not be interpreted!", e);
}
}
public static void main (String[] args) throws Exception{
String jpylyzerPath = args[0];
File jpylyzerDir = new File(jpylyzerPath);
if (jpylyzerDir.exists() && jpylyzerDir.isDirectory()) {
jpylyzerHome = jpylyzerPath;
} else {
LOGGER.severe("Invalid configuration jpylyzer: [" + jpylyzerPath + "] notFound");
throw new IllegalArgumentException("Invalid configuration jpylyzer: [" + jpylyzerPath + "] notFound");
}
// Define the python.path property to make jpylyzer discoverable
String path = System.getProperty("python.path");
if (path == null || path.length() == 0) {
System.setProperty("python.path", jpylyzerHome);
} else {
System.setProperty("python.path", jpylyzerHome + File.pathSeparator + path);
}
// First time initialization
ScriptEngine engine = new ScriptEngineManager().getEngineByName("python");
File inputFile = new File(args[1]);
String filePath = inputFile.getAbsolutePath().replaceAll("\\\\", "/");
declarePythonFunctionInEngine(engine);
if (engine instanceof Invocable) {
Invocable invocable = (Invocable) engine;
Object docXml = invocable.invokeFunction("pythonCharacterize", filePath);
System.out.println((String)docXml);
} else {
Object docXml = engine.eval("pythonCharacterize('" + filePath + "')");
System.out.println((String)docXml);
}
}
}
|
