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1
45 package org.openejb.util;
46
47 import java.io.File  ;
48 import java.io.FileInputStream ;
49 import java.io.FileNotFoundException ;
50 import java.io.FileOutputStream ;
51 import java.io.IOException ;
52 import java.io.InputStream ;
53 import java.net.URL ;
54 import java.util.Hashtable ;
55 import java.util.Properties ;
56
57 import org.openejb.OpenEJBException;
58 import org.openejb.loader.SystemInstance;
59
60 public class FileUtils {
61
62 private static final java.util.Random _random = new java.util.Random ();
63
64 private File home;
65
66 private FileUtils(String homeDir, String defaultDir) {
67 this(homeDir, defaultDir, System.getProperties());
68 }
69
70 public FileUtils(String homeDir, String defaultDir, Hashtable env) {
71 String homePath = null;
72 try {
73 homePath = (String ) env.get(homeDir);
74 if (homePath == null) {
75 homePath = (String ) env.get(defaultDir);
76 }
77
78 if (homePath == null) {
79 homePath = System.getProperty("user.dir");
80 }
81
82 home = new File (homePath);
83 if (!home.exists() || (home.exists() && !home.isDirectory())) {
84 homePath = System.getProperty("user.dir");
85 home = new File (homePath);
86 }
87
88 home = home.getAbsoluteFile();
89 } catch (SecurityException e) {
90 }
92 }
93
94
97 public File getDirectory(String path) throws IOException {
98 return getDirectory(path, false);
99 }
100
101 public boolean equals(Object obj) {
102 if (!(obj instanceof FileUtils)) return false;
103 FileUtils that = (FileUtils)obj;
104 return this.getDirectory().equals(that.getDirectory());
105 }
106
107
117 public File getDirectory(String path, boolean create) throws IOException {
118 File dir = null;
119
120 dir = new File (home, path);
121 dir = dir.getCanonicalFile();
122
123 if (!dir.exists() && create) {
124 try {
125 if (!dir.mkdirs())
126 throw new IOException ("Cannot create the directory " + dir.getPath());
127 } catch (SecurityException e) {
128 throw new IOException (
129 "Permission denied: Cannot create the directory " + dir.getPath() + " : " + e.getMessage());
130 }
131 } else if (dir.exists() && !dir.isDirectory()) {
132 throw new IOException ("The path specified is not a valid directory: " + dir.getPath());
133 }
134
135 return dir;
136 }
137
138 public File getDirectory() {
139 return home;
140 }
141
142 public void setDirectory(File dir) {
143 this.home = dir;
144 }
145
146 public File getFile(String path) throws java.io.FileNotFoundException , java.io.IOException {
147 return getFile(path, true);
148 }
149
150 public File getFile(String path, boolean validate) throws java.io.FileNotFoundException , java.io.IOException {
151 File file = null;
152
153 file = new File (path);
154
155 if (!file.isAbsolute()) {
156 file = new File (home, path);
157 }
158
159 if (validate && !file.exists()) {
160 throw new FileNotFoundException ("The path specified is not a valid file: " + file.getPath());
161 } else if (validate && file.isDirectory()) {
162 throw new FileNotFoundException ("The path specified is a directory, not a file: " + file.getPath());
163 }
164
165 return file;
166 }
167
168
177 public static File createTempDirectory(String pathPrefix) throws java.io.IOException {
178 for (int maxAttempts = 100; maxAttempts > 0; --maxAttempts) {
179 String path = pathPrefix + _random.nextLong();
180 java.io.File tmpDir = new java.io.File (path);
181 if (tmpDir.exists()) {
182 continue;
183 } else {
184 tmpDir.mkdir();
185 return tmpDir;
186 }
187 }
188 throw new java.io.IOException ("Can't create temporary directory.");
189 }
190
191
198 public static File createTempDirectory() throws java.io.IOException {
199 String prefix = System.getProperty("java.io.tmpdir", File.separator + "tmp") + File.separator + "openejb";
200 return createTempDirectory(prefix);
201 }
202
203
214 public static void copyFile(File destination, File source) throws java.io.IOException {
215 copyFile(destination, source, false);
216 }
217
218
231 public static void copyFile(File destination, File source, boolean deleteSourceFile) throws java.io.IOException {
232 FileInputStream in = null;
233 FileOutputStream out = null;
234 try {
235 in = new FileInputStream (source);
236 out = new FileOutputStream (destination);
237
238 int len;
239 byte[] buffer = new byte[4096];
240 while ((len = in.read(buffer)) != -1) {
241 out.write(buffer, 0, len);
242 }
243 } catch (java.io.IOException e) {
244 throw e;
245 } finally {
246 in.close();
247 out.close();
248 }
249
250 if (deleteSourceFile) {
251 source.delete();
252 }
253 }
254
255 }
256 |
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