01: /*
02: * Copyright 2000,2005 wingS development team.
03: *
04: * This file is part of wingS (http://wingsframework.org).
05: *
06: * wingS is free software; you can redistribute it and/or modify
07: * it under the terms of the GNU Lesser General Public License
08: * as published by the Free Software Foundation; either version 2.1
09: * of the License, or (at your option) any later version.
10: *
11: * Please see COPYING for the complete licence.
12: */
13: package org.wings.externalizer;
14:
15: import org.wings.Renderable;
16: import org.wings.StaticResource;
17: import org.wings.io.Device;
18: import org.wings.resource.HttpHeader;
19: import org.wings.resource.NamedResource;
20: import org.wings.resource.ResourceNotFoundException;
21:
22: import java.io.IOException;
23: import java.util.Collection;
24:
25: /**
26: * @author <a href="mailto:haaf@mercatis.de">Armin Haaf</a>
27: * @author <a href="mailto:mreinsch@to.com">Michael Reinsch</a>
28: */
29: public class StaticResourceExternalizer implements
30: Externalizer<StaticResource> {
31:
32: private static final Class[] SUPPORTED_CLASSES = { StaticResource.class };
33:
34: public static final StaticResourceExternalizer SHARED_INSTANCE = new StaticResourceExternalizer();
35:
36: public String getId(StaticResource obj) {
37: if (obj instanceof NamedResource)
38: return ((NamedResource) obj).getResourceName();
39: else
40: return null;
41: }
42:
43: public String getExtension(StaticResource obj) {
44: if (obj instanceof NamedResource)
45: return null;
46: else
47: return obj.getExtension();
48: }
49:
50: public String getMimeType(StaticResource obj) {
51: if (obj != null)
52: return obj.getMimeType();
53: else
54: return "unknown";
55: }
56:
57: public int getLength(StaticResource obj) {
58: if (obj != null)
59: return obj.getLength();
60: return -1;
61: }
62:
63: public boolean isFinal(StaticResource obj) {
64: return true;
65: }
66:
67: public void write(Object obj, Device out) throws IOException,
68: ResourceNotFoundException {
69: ((Renderable) obj).write(out);
70: }
71:
72: public Class[] getSupportedClasses() {
73: return SUPPORTED_CLASSES;
74: }
75:
76: public String[] getSupportedMimeTypes() {
77: return null;
78: }
79:
80: public Collection<HttpHeader> getHeaders(StaticResource obj) {
81: if (obj != null)
82: return obj.getHeaders();
83: else
84: return null;
85: }
86: }
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