01: /*
02: * argun 1.0
03: * Web 2.0 delivery framework
04: * Copyright (C) 2007 Hammurapi Group
05: *
06: * This program is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU Lesser General Public
08: * License as published by the Free Software Foundation; either
09: * version 2 of the License, or (at your option) any later version.
10: *
11: * This program is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * Lesser General Public License for more details.
15: *
16: * You should have received a copy of the GNU Lesser General Public
17: * License along with this library; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19: *
20: * URL: http://www.hammurapi.biz
21: * e-Mail: support@hammurapi.biz
22: */
23: package biz.hammurapi.web;
24:
25: import java.applet.Applet;
26: import java.io.IOException;
27: import java.io.InputStream;
28:
29: /**
30: * Base class for file applets which store content to Argun file system, e.g. Diagram or Image editor applets.
31: * @author Pavel Vlasov
32: *
33: */
34: public class FileApplet extends Applet {
35:
36: /**
37: * @return File data for editing (native format). If this method returns null then it means that a new file shall be created.
38: * This implementation returns data from applet stream with the name of the applet class.
39: */
40: protected InputStream getData() {
41: return getAppletContext().getStream(getClass().getName());
42: }
43:
44: /**
45: * Stores file data.
46: * This implementation stores only native data to applet stream with the name of the applet class.
47: * @param data Native data which is used for editing.
48: * @param viewData File representation for viewing if this representation is different from native. E.g. for diagram editor or image editor
49: * view data shall be in one of image formats, e.g. GIF or PNG.
50: * @param viewMimeType View data MIME type, e.g. image/png.
51: * @throws IOException
52: */
53: protected void storeData(InputStream data, InputStream viewData,
54: String viewMimeType) throws IOException {
55: getAppletContext().setStream(getClass().getName(), data);
56: }
57: }
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