1. Project Clover database Tue Dec 20 2016 21:24:09 CET
  2. Package org.xwiki.vfs.internal

File AbstractContentResourceReferenceHandler.java

 

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38% of files have more coverage

Code metrics

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Classes

Class Line # Actions
AbstractContentResourceReferenceHandler 42 7 0% 2 1
0.87587.5%
 

Contributing tests

This file is covered by 1 test. .

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1    /*
2    * See the NOTICE file distributed with this work for additional
3    * information regarding copyright ownership.
4    *
5    * This is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU Lesser General Public License as
7    * published by the Free Software Foundation; either version 2.1 of
8    * the License, or (at your option) any later version.
9    *
10    * This software is distributed in the hope that it will be useful,
11    * but WITHOUT ANY WARRANTY; without even the implied warranty of
12    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13    * Lesser General Public License for more details.
14    *
15    * You should have received a copy of the GNU Lesser General Public
16    * License along with this software; if not, write to the Free
17    * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18    * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
19    */
20    package org.xwiki.vfs.internal;
21   
22    import java.io.BufferedInputStream;
23    import java.io.InputStream;
24   
25    import javax.inject.Inject;
26   
27    import org.apache.commons.io.IOUtils;
28    import org.apache.tika.Tika;
29    import org.xwiki.container.Container;
30    import org.xwiki.container.Response;
31    import org.xwiki.resource.AbstractResourceReferenceHandler;
32    import org.xwiki.resource.ResourceReferenceHandlerException;
33    import org.xwiki.resource.ResourceType;
34   
35    /**
36    * Helper to implement {@link org.xwiki.resource.ResourceReferenceHandler} components that return content to the
37    * Container's output stream.
38    *
39    * @version $Id: 86b5ebdc8451fb37a0c092bacf0a55cc114a6d1d $
40    * @since 7.4M2
41    */
 
42    public abstract class AbstractContentResourceReferenceHandler extends AbstractResourceReferenceHandler<ResourceType>
43    {
44    @Inject
45    private Container container;
46   
47    /**
48    * Used to determine the Content Type of the requested resource files.
49    */
50    private Tika tika = new Tika();
51   
 
52  2 toggle protected void serveResource(String resourceName, InputStream resourceStream)
53    throws ResourceReferenceHandlerException
54    {
55    // Make sure the resource stream supports mark & reset which is needed in order be able to detect the
56    // content type without affecting the stream (Tika may need to read a few bytes from the start of the
57    // stream, in which case it will mark & reset the stream).
58    //
59    // Note that even though the stream returned by TrueVFS returns true for markSupported() in practice it
60    // doesn't! Thus we need to wrap the stream to make it support mark and reset.
61  2 InputStream markResetSupportingStream = new BufferedInputStream(resourceStream);
62   
63  2 try {
64  2 Response response = this.container.getResponse();
65  2 response.setContentType(this.tika.detect(markResetSupportingStream, resourceName));
66  2 IOUtils.copy(markResetSupportingStream, response.getOutputStream());
67    } catch (Exception e) {
68  0 throw new ResourceReferenceHandlerException(String.format("Failed to read resource [%s]", resourceName), e);
69    } finally {
70  2 IOUtils.closeQuietly(markResetSupportingStream);
71    }
72    }
73    }