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17 package org.apache.commons.vfs.provider.local;
18
19 import org.apache.commons.vfs.Capability;
20 import org.apache.commons.vfs.FileName;
21 import org.apache.commons.vfs.FileObject;
22 import org.apache.commons.vfs.FileSystem;
23 import org.apache.commons.vfs.FileSystemException;
24 import org.apache.commons.vfs.FileSystemOptions;
25 import org.apache.commons.vfs.provider.AbstractOriginatingFileProvider;
26 import org.apache.commons.vfs.provider.LocalFileProvider;
27 import org.apache.commons.vfs.provider.UriParser;
28 import org.apache.commons.vfs.util.Os;
29
30 import java.io.File;
31 import java.util.Arrays;
32 import java.util.Collection;
33 import java.util.Collections;
34
35 /***
36 * A file system provider, which uses direct file access.
37 *
38 * @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a>
39 * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $
40 */
41 public class DefaultLocalFileProvider
42 extends AbstractOriginatingFileProvider
43 implements LocalFileProvider
44 {
45 public final static Collection capabilities = Collections.unmodifiableCollection(Arrays.asList(new Capability[]
46 {
47 Capability.CREATE,
48 Capability.DELETE,
49 Capability.RENAME,
50 Capability.GET_TYPE,
51 Capability.GET_LAST_MODIFIED,
52 Capability.SET_LAST_MODIFIED_FILE,
53 Capability.SET_LAST_MODIFIED_FOLDER,
54 Capability.LIST_CHILDREN,
55 Capability.READ_CONTENT,
56 Capability.URI,
57 Capability.WRITE_CONTENT,
58 Capability.APPEND_CONTENT,
59 Capability.RANDOM_ACCESS_READ,
60 Capability.RANDOM_ACCESS_WRITE
61 }));
62
63 public DefaultLocalFileProvider()
64 {
65 super();
66
67 if (Os.isFamily(Os.OS_FAMILY_WINDOWS))
68 {
69 setFileNameParser(new WindowsFileNameParser());
70 }
71 else
72 {
73 setFileNameParser(new GenericFileNameParser());
74 }
75 }
76
77 /***
78 * Determines if a name is an absolute file name.
79 */
80 public boolean isAbsoluteLocalName(final String name)
81 {
82 return ((LocalFileNameParser) getFileNameParser()).isAbsoluteName(name);
83 }
84
85 /***
86 * Finds a local file, from its local name.
87 */
88 public FileObject findLocalFile(final String name)
89 throws FileSystemException
90 {
91 StringBuffer uri = new StringBuffer(name.length() + 5);
92 uri.append("file:");
93 uri.append(name);
94 FileName filename = parseUri(null, uri.toString());
95 return findFile(filename, null);
96 }
97
98 /***
99 * Finds a local file.
100 */
101 public FileObject findLocalFile(final File file)
102 throws FileSystemException
103 {
104 return findLocalFile(UriParser.encode(file.getAbsolutePath()));
105
106 }
107
108 /***
109 * Creates the filesystem.
110 */
111 protected FileSystem doCreateFileSystem(final FileName name, final FileSystemOptions fileSystemOptions)
112 throws FileSystemException
113 {
114
115 final LocalFileName rootName = (LocalFileName) name;
116 return new LocalFileSystem(rootName, rootName.getRootFile(), fileSystemOptions);
117 }
118
119 public Collection getCapabilities()
120 {
121 return capabilities;
122 }
123 }