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1
36 package org.ungoverned.oscar.installer.artifact;
37
38 import java.io.*;
39 import java.net.URL  ;
40 import java.net.URLConnection ;
41
42 import org.ungoverned.oscar.installer.Status;
43 import org.ungoverned.oscar.installer.StringProperty;
44
45 public class URLJarArtifact extends AbstractJarArtifact
46 {
47 public URLJarArtifact(StringProperty sourceName)
48 {
49 this(sourceName, null);
50 }
51
52 public URLJarArtifact(StringProperty sourceName, StringProperty destDir)
53 {
54 this(sourceName, destDir, false);
55 }
56
57 public URLJarArtifact(
58 StringProperty sourceName, StringProperty destDir, boolean localize)
59 {
60 super(sourceName, destDir, localize);
61 }
62
63 public InputStream getInputStream(Status status)
64 throws IOException
65 {
66 String fileName = getSourceName().getStringValue();
67 fileName = (fileName.lastIndexOf('/') > 0)
68 ? fileName.substring(fileName.lastIndexOf('/') + 1)
69 : fileName;
70
71 status.setText("Connecting...");
72
73 File file = File.createTempFile("oscar-install.tmp", null);
74 file.deleteOnExit();
75
76 OutputStream os = new FileOutputStream(file);
77 URLConnection conn = new URL (getSourceName().getStringValue()).openConnection();
78 int total = conn.getContentLength();
79 InputStream is = conn.getInputStream();
80
81 int count = 0;
82 for (int len = is.read(s_buffer); len > 0; len = is.read(s_buffer))
83 {
84 count += len;
85 os.write(s_buffer, 0, len);
86 if (total > 0)
87 {
88 status.setText("Downloading " + fileName
89 + " ( " + count + " bytes of " + total + " ).");
90 }
91 else
92 {
93 status.setText("Downloading " + fileName + " ( " + count + " bytes ).");
94 }
95 }
96
97 os.close();
98 is.close();
99
100 return new FileInputStream(file);
101 }
102
103 public String toString()
104 {
105 return "URL JAR: " + getSourceName().getStringValue();
106 }
107 } |
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