Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
CachedResource |
|
| 1.0;1 |
1 | /* | |
2 | * $Id: CachedResource.java 7976 2007-08-21 14:26:13Z dirk.olmes $ | |
3 | * -------------------------------------------------------------------------------------- | |
4 | * Copyright (c) MuleSource, Inc. All rights reserved. http://www.mulesource.com | |
5 | * | |
6 | * The software in this package is published under the terms of the CPAL v1.0 | |
7 | * license, a copy of which has been included with this distribution in the | |
8 | * LICENSE.txt file. | |
9 | */ | |
10 | ||
11 | package org.mule.extras.spring.config; | |
12 | ||
13 | import org.mule.util.IOUtils; | |
14 | ||
15 | import java.io.ByteArrayInputStream; | |
16 | import java.io.IOException; | |
17 | import java.io.InputStream; | |
18 | import java.io.Reader; | |
19 | import java.io.UnsupportedEncodingException; | |
20 | ||
21 | import org.springframework.core.io.AbstractResource; | |
22 | ||
23 | /** | |
24 | * Spring 2.x is picky about open/closed input streams, as it requires a closed | |
25 | * stream (fully read resource) to enable automatic validation detection (DTD or | |
26 | * XSD). Otherwise, a caller has to specify the mode explicitly. <p/> Code relying on | |
27 | * Spring 1.2.x behavior may now break with | |
28 | * {@link org.springframework.beans.factory.BeanDefinitionStoreException}. This | |
29 | * class is called in to remedy this and should be used instead of, e.g. | |
30 | * {@link org.springframework.core.io.InputStreamResource}. <p/> The resource is | |
31 | * fully stored in memory. | |
32 | */ | |
33 | public class CachedResource extends AbstractResource | |
34 | { | |
35 | ||
36 | private static final String DEFAULT_DESCRIPTION = "cached in-memory resource"; | |
37 | ||
38 | private final byte[] buffer; | |
39 | private final String description; | |
40 | ||
41 | public CachedResource(byte[] source) | |
42 | { | |
43 | 0 | this(source, null); |
44 | 0 | } |
45 | ||
46 | public CachedResource(String source, String encoding) throws UnsupportedEncodingException | |
47 | { | |
48 | 0 | this(source.trim().getBytes(encoding), DEFAULT_DESCRIPTION); |
49 | 0 | } |
50 | ||
51 | public CachedResource(byte[] source, String description) | |
52 | 0 | { |
53 | 0 | this.buffer = source; |
54 | 0 | this.description = description; |
55 | 0 | } |
56 | ||
57 | public CachedResource(Reader reader, String encoding) throws IOException | |
58 | { | |
59 | 0 | this(IOUtils.toByteArray(reader, encoding), DEFAULT_DESCRIPTION); |
60 | 0 | } |
61 | ||
62 | public String getDescription() | |
63 | { | |
64 | 0 | return (description == null) ? "" : description; |
65 | } | |
66 | ||
67 | public InputStream getInputStream() throws IOException | |
68 | { | |
69 | // This HAS to be a new InputStream, otherwise SAX | |
70 | // parser breaks with 'Premature end of file at line -1" | |
71 | // This behavior is not observed with Spring pre-2.x | |
72 | 0 | return new ByteArrayInputStream(buffer); |
73 | } | |
74 | } |