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17 package org.apache.logging.log4j.core.util;
18
19 import java.io.File;
20 import java.io.IOException;
21 import java.io.UnsupportedEncodingException;
22 import java.net.MalformedURLException;
23 import java.net.URI;
24 import java.net.URISyntaxException;
25 import java.net.URL;
26 import java.net.URLDecoder;
27 import java.util.regex.Pattern;
28
29 import org.apache.logging.log4j.Logger;
30 import org.apache.logging.log4j.status.StatusLogger;
31
32
33
34
35 public final class FileUtils {
36
37
38 private static final String PROTOCOL_FILE = "file";
39
40 private static final String JBOSS_FILE = "vfsfile";
41
42 private static final Logger LOGGER = StatusLogger.getLogger();
43 private static final Pattern WINDOWS_DIRECTORY_SEPARATOR = Pattern.compile("\\\\+");
44
45 private FileUtils() {
46 }
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55 public static File fileFromUri(URI uri) {
56
57 if (uri == null
58 || (uri.getScheme() != null && (!PROTOCOL_FILE.equals(uri.getScheme()) && !JBOSS_FILE.equals(uri
59 .getScheme())))) {
60 return null;
61 }
62 if (uri.getScheme() == null) {
63 File file = new File(uri.toString());
64 if (file.exists()) {
65 return file;
66 }
67 try {
68 final String path = uri.getPath();
69 file = new File(path);
70 if (file.exists()) {
71 return file;
72 }
73 uri = new File(path).toURI();
74 } catch (final Exception ex) {
75 LOGGER.warn("Invalid URI {}", uri);
76 return null;
77 }
78 }
79 final String charsetName = Constants.UTF_8.name();
80 try {
81 String fileName = uri.toURL().getFile();
82 if (new File(fileName).exists()) {
83 return new File(fileName);
84 }
85 fileName = URLDecoder.decode(fileName, charsetName);
86 return new File(fileName);
87 } catch (final MalformedURLException ex) {
88 LOGGER.warn("Invalid URL {}", uri, ex);
89 } catch (final UnsupportedEncodingException uee) {
90 LOGGER.warn("Invalid encoding: {}", charsetName, uee);
91 }
92 return null;
93 }
94
95 public static boolean isFile(final URL url) {
96 return url != null && (url.getProtocol().equals(PROTOCOL_FILE) || url.getProtocol().equals(JBOSS_FILE));
97 }
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105 public static void mkdir(final File dir, final boolean createDirectoryIfNotExisting ) throws IOException {
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107 if (!dir.exists()) {
108 if(!createDirectoryIfNotExisting) {
109 throw new IOException("The directory " + dir.getAbsolutePath() + " does not exist.");
110 }
111 if(!dir.mkdirs()) {
112 throw new IOException("Could not create directory " + dir.getAbsolutePath());
113 }
114 }
115 if (!dir.isDirectory()) {
116 throw new IOException("File " + dir + " exists and is not a directory. Unable to create directory.");
117 }
118 }
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128 public static URI getCorrectedFilePathUri(final String uri) throws URISyntaxException {
129 return new URI(WINDOWS_DIRECTORY_SEPARATOR.matcher(uri).replaceAll("/"));
130 }
131 }