01: /*
02: * @(#)HashtableInputStreamGenerator.java
03: *
04: * Copyright (C) 2001,2003 Matt Albrecht
05: * groboclown@users.sourceforge.net
06: * http://groboutils.sourceforge.net
07: *
08: * Permission is hereby granted, free of charge, to any person obtaining a
09: * copy of this software and associated documentation files (the "Software"),
10: * to deal in the Software without restriction, including without limitation
11: * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12: * and/or sell copies of the Software, and to permit persons to whom the
13: * Software is furnished to do so, subject to the following conditions:
14: *
15: * The above copyright notice and this permission notice shall be included in
16: * all copies or substantial portions of the Software.
17: *
18: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21: * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23: * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24: * DEALINGS IN THE SOFTWARE.
25: */
26:
27: package net.sourceforge.groboutils.util.io.v1;
28:
29: import java.io.InputStream;
30: import java.io.IOException;
31: import java.util.Hashtable;
32: import java.io.ByteArrayInputStream;
33:
34: /**
35: * A type of class which can generate a new InputStream based on a entry
36: * in a Hashtable. It will create a StringBufferInputStream based on the
37: * <tt>toString</tt> of the data.
38: *
39: * @author Matt Albrecht <a href="mailto:groboclown@users.sourceforge.net">groboclown@users.sourceforge.net</a>
40: * @since 0.9.1d (sometime in 2001)
41: * @version $Date: 2003/02/10 22:52:45 $
42: */
43: public class HashtableInputStreamGenerator implements
44: IInputStreamGenerator {
45: private Hashtable map;
46: private String orig;
47:
48: /**
49: * Accepts the name of the 1st file loaded. All files generated from
50: * this generator will be relative to its location.
51: */
52: public HashtableInputStreamGenerator(Hashtable map) {
53: this .map = map;
54: }
55:
56: public String getFullName(String relativeName) {
57: return relativeName;
58: }
59:
60: public InputStream createInputStream(String relativeName)
61: throws IOException {
62: if (relativeName == null) {
63: throw new IOException("null name");
64: }
65:
66: Object o = this .map.get(relativeName);
67: if (o == null) {
68: throw new IOException("resource '" + relativeName
69: + "' does not exist");
70: }
71:
72: return new ByteArrayInputStream(o.toString().getBytes());
73: }
74: }
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