1 ////////////////////////////////////////////////////////////////////////////////
2 // MillScript: an Open Spice interpreter and batch website creation tool
3 // Copyright (C) 2004-2005 Kevin Rogers
4 //
5 // This file is part of MillScript.
6 //
7 // MillScript is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU General Public License as published by the Free
9 // Software Foundation; either version 2 of the License, or (at your option)
10 // any later version.
11 //
12 // MillScript is distributed in the hope that it will be useful, but WITHOUT
13 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 // more details.
16 //
17 // You should have received a copy of the GNU General Public License along with
18 // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
19 // Place, Suite 330, Boston, MA 02111-1307 USA
20 ////////////////////////////////////////////////////////////////////////////////
21 package org.millscript.millscript;
22
23 import org.millscript.millscript.alert.Alerts;
24
25 import java.io.IOException;
26 import java.io.InputStream;
27 import java.net.URL;
28
29 /**
30 * This class represents a URL as a source of information.
31 */
32 public class URLSource extends Source {
33
34 /**
35 * The URL this source will read from.
36 */
37 private URL url;
38
39 /**
40 * Constructs a new URL source for the specified URL.
41 *
42 * @param u the source URL
43 */
44 public URLSource( final URL u ) {
45 this.url = u;
46 }
47
48 /**
49 * @see org.millscript.millscript.Source#getInputStream()
50 */
51 @Override
52 public final InputStream getInputStream() {
53 try {
54 return this.url.openStream();
55 } catch ( IOException ex ) {
56 throw(
57 Alerts.compile(
58 "Problem opening URL for reading",
59 null
60 ).
61 culprit( "source", getOrigin() ).
62 culprit( "reason", ex.getMessage() ).
63 mishap()
64 );
65 }
66 }
67
68 /**
69 * @see org.millscript.millscript.Source#getOrigin()
70 */
71 @Override
72 public final String getOrigin() {
73 return this.url.getPath();
74 }
75
76 /**
77 * @see org.millscript.millscript.Source#getOriginURL()
78 */
79 @Override
80 public URL getOriginURL() {
81 return this.url;
82 }
83
84 }