source: src/main/java/genius/ProtocolsInstaller.java@ 126

Last change on this file since 126 was 1, checked in by Wouter Pasman, 6 years ago

Initial import : Genius 9.0.0

File size: 2.7 KB
Line 
1package genius;
2
3import java.io.File;
4import java.io.FileNotFoundException;
5import java.io.FileOutputStream;
6import java.io.IOException;
7import java.io.InputStream;
8import java.io.OutputStream;
9
10/**
11 * Installs the protocol xml files for use in Genius. Specifically, copies
12 * "resources/genius/repositories/domains/boapartyrepo.xml" and
13 * "resources/genius/repositories/parties/partyrepository.xml" to ".". Files
14 * that are already exist are not touched. This means that eg "./etc" already
15 * exists, nothing happens.
16 */
17public class ProtocolsInstaller {
18 /**
19 * run the installer
20 *
21 * @throws IOException
22 * if fails to copy the files
23 */
24 public static void run() throws IOException {
25 copy("genius/repositories/protocols/protocolrepository.xml");
26 copy("genius/repositories/multipartyprotocols/multipartyprotocolrepository.xml");
27
28 }
29
30 /**
31 * Copy file in given repository to the current directory.
32 *
33 * @param filename
34 * the filename in our repository
35 * @throws IOException
36 * if copy fails
37 */
38 private static void copy(String filename) throws IOException {
39 // copy only takes the name but uses current directory
40 File copy = new File(new File(filename).getName());
41 if (copy.exists())
42 return;
43 copyResource(filename, copy.getName());
44 }
45
46 /**
47 * Copy of DomainInstaller copyResource... Copy 1 resource inside a jar. If
48 * given name actually ends with "/" it is assumed a directory and the
49 * directory is created if it does not yet exist.
50 *
51 * @param name
52 * the file/directory name.Name should end with "/" iff it is a
53 * directory. Resourcess are assumed to be absolute refs, a
54 * leading "/" is added before trying to resolve.
55 * @param target
56 * the target name/directory. Usually does not start with "/"
57 * because that would imply the root of the file system while
58 * installs are usually done in the current directory.
59 * @throws IOException
60 * if copy fails
61 */
62 private static void copyResource(String name, String target) throws IOException {
63 if (name.endsWith("/")) {
64 new File(target).mkdirs();
65 return;
66 }
67 InputStream stream = null;
68 OutputStream resStreamOut = null;
69 try {
70 stream = ProtocolsInstaller.class.getResourceAsStream("/" + name);
71 if (stream == null) {
72 throw new FileNotFoundException("file not found " + name);
73 }
74 int readBytes;
75 byte[] buffer = new byte[4096];
76 resStreamOut = new FileOutputStream(target);
77 while ((readBytes = stream.read(buffer)) > 0) {
78 resStreamOut.write(buffer, 0, readBytes);
79 }
80 } finally {
81 if (stream != null) {
82 stream.close();
83 }
84 if (resStreamOut != null) {
85 resStreamOut.close();
86 }
87 }
88 }
89
90}
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