src/share/classes/com/sun/tools/doclets/internal/toolkit/util/DocFile.java

changeset 1412
400a4e8accd3
parent 1383
b980e8e6aabf
child 1413
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equal deleted inserted replaced
1411:467f4f754368 1412:400a4e8accd3
23 * questions. 23 * questions.
24 */ 24 */
25 25
26 package com.sun.tools.doclets.internal.toolkit.util; 26 package com.sun.tools.doclets.internal.toolkit.util;
27 27
28 import java.io.BufferedInputStream; 28 import java.io.FileNotFoundException;
29 import java.io.BufferedOutputStream; 29 import java.io.IOException;
30 import java.io.InputStream;
31 import java.io.OutputStream;
32 import java.io.UnsupportedEncodingException;
33 import java.io.Writer;
34
35 import javax.tools.JavaFileManager.Location;
36 import javax.tools.StandardLocation;
37
38 import com.sun.tools.doclets.internal.toolkit.Configuration;
30 import java.io.BufferedReader; 39 import java.io.BufferedReader;
31 import java.io.BufferedWriter; 40 import java.io.BufferedWriter;
32 import java.io.File;
33 import java.io.FileInputStream;
34 import java.io.FileNotFoundException;
35 import java.io.FileOutputStream;
36 import java.io.IOException;
37 import java.io.InputStream;
38 import java.io.InputStreamReader; 41 import java.io.InputStreamReader;
39 import java.io.OutputStream;
40 import java.io.OutputStreamWriter; 42 import java.io.OutputStreamWriter;
41 import java.io.UnsupportedEncodingException;
42 import java.io.Writer;
43 import java.util.ArrayList;
44 import java.util.LinkedHashSet;
45 import java.util.List;
46 import java.util.Set;
47
48 import javax.tools.JavaFileManager.Location;
49 import javax.tools.StandardLocation;
50
51 import com.sun.tools.doclets.internal.toolkit.Configuration;
52 43
53 /** 44 /**
54 * Abstraction for handling files, which may be specified directly 45 * Abstraction for handling files, which may be specified directly
55 * (e.g. via a path on the command line) or relative to a Location. 46 * (e.g. via a path on the command line) or relative to a Location.
56 * 47 *
59 * This code and its internal interfaces are subject to change or 50 * This code and its internal interfaces are subject to change or
60 * deletion without notice.</b> 51 * deletion without notice.</b>
61 * 52 *
62 * @since 8 53 * @since 8
63 */ 54 */
64 public class DocFile { 55 public abstract class DocFile {
65 56
66 /** 57 /** Create a DocFile for a directory. */
67 * The doclet configuration. 58 public static DocFile createFileForDirectory(Configuration configuration, String file) {
68 * Provides access to options such as docencoding, output directory, etc. 59 return DocFileFactory.getFactory(configuration).createFileForDirectory(file);
69 */ 60 }
61
62 /** Create a DocFile for a file that will be opened for reading. */
63 public static DocFile createFileForInput(Configuration configuration, String file) {
64 return DocFileFactory.getFactory(configuration).createFileForInput(file);
65 }
66
67 /** Create a DocFile for a file that will be opened for writing. */
68 public static DocFile createFileForOutput(Configuration configuration, DocPath path) {
69 return DocFileFactory.getFactory(configuration).createFileForOutput(path);
70 }
71
70 private final Configuration configuration; 72 private final Configuration configuration;
71 73
72 /** 74 /**
73 * The location for this file. Maybe null if the file was created without 75 * The location for this file. Maybe null if the file was created without
74 * a location or path. 76 * a location or path.
75 */ 77 */
76 private final Location location; 78 protected final Location location;
77 79
78 /** 80 /**
79 * The path relative to the (output) location. Maybe null if the file was 81 * The path relative to the (output) location. Maybe null if the file was
80 * created without a location or path. 82 * created without a location or path.
81 */ 83 */
82 private final DocPath path; 84 protected final DocPath path;
83
84 /**
85 * The file object itself.
86 * This is temporary, until we create different subtypes of DocFile.
87 */
88 private final File file;
89
90 /** Create a DocFile for a directory. */
91 public static DocFile createFileForDirectory(Configuration configuration, String file) {
92 return new DocFile(configuration, new File(file));
93 }
94
95 /** Create a DocFile for a file that will be opened for reading. */
96 public static DocFile createFileForInput(Configuration configuration, String file) {
97 return new DocFile(configuration, new File(file));
98 }
99
100 /** Create a DocFile for a file that will be opened for writing. */
101 public static DocFile createFileForOutput(Configuration configuration, DocPath path) {
102 return new DocFile(configuration, StandardLocation.CLASS_OUTPUT, path);
103 }
104 85
105 /** 86 /**
106 * List the directories and files found in subdirectories along the 87 * List the directories and files found in subdirectories along the
107 * elements of the given location. 88 * elements of the given location.
108 * @param configuration the doclet configuration 89 * @param configuration the doclet configuration
109 * @param location currently, only {@link StandardLocation#SOURCE_PATH} is supported. 90 * @param location currently, only {@link StandardLocation#SOURCE_PATH} is supported.
110 * @param path the subdirectory of the directories of the location for which to 91 * @param path the subdirectory of the directories of the location for which to
111 * list files 92 * list files
112 */ 93 */
113 public static Iterable<DocFile> list(Configuration configuration, Location location, DocPath path) { 94 public static Iterable<DocFile> list(Configuration configuration, Location location, DocPath path) {
114 if (location != StandardLocation.SOURCE_PATH) 95 return DocFileFactory.getFactory(configuration).list(location, path);
115 throw new IllegalArgumentException(); 96 }
116 97
117 Set<DocFile> files = new LinkedHashSet<DocFile>(); 98 /** Create a DocFile without a location or path */
118 for (String s : configuration.sourcepath.split(File.pathSeparator)) { 99 protected DocFile(Configuration configuration) {
119 if (s.isEmpty())
120 continue;
121 File f = new File(s);
122 if (f.isDirectory()) {
123 f = new File(f, path.getPath());
124 if (f.exists())
125 files.add(new DocFile(configuration, f));
126 }
127 }
128 return files;
129 }
130
131 /** Create a DocFile for a given file. */
132 private DocFile(Configuration configuration, File file) {
133 this.configuration = configuration; 100 this.configuration = configuration;
134 this.location = null; 101 this.location = null;
135 this.path = null; 102 this.path = null;
136 this.file = file;
137 } 103 }
138 104
139 /** Create a DocFile for a given location and relative path. */ 105 /** Create a DocFile for a given location and relative path. */
140 private DocFile(Configuration configuration, Location location, DocPath path) { 106 protected DocFile(Configuration configuration, Location location, DocPath path) {
141 this.configuration = configuration; 107 this.configuration = configuration;
142 this.location = location; 108 this.location = location;
143 this.path = path; 109 this.path = path;
144 this.file = path.resolveAgainst(configuration.destDirName);
145 } 110 }
146 111
147 /** Open an input stream for the file. */ 112 /** Open an input stream for the file. */
148 public InputStream openInputStream() throws FileNotFoundException { 113 public abstract InputStream openInputStream() throws IOException;
149 return new BufferedInputStream(new FileInputStream(file));
150 }
151 114
152 /** 115 /**
153 * Open an output stream for the file. 116 * Open an output stream for the file.
154 * The file must have been created with a location of 117 * The file must have been created with a location of
155 * {@link StandardLocation#CLASS_OUTPUT} and a corresponding relative path. 118 * {@link StandardLocation#CLASS_OUTPUT} and a corresponding relative path.
156 */ 119 */
157 public OutputStream openOutputStream() throws IOException, UnsupportedEncodingException { 120 public abstract OutputStream openOutputStream() throws IOException, UnsupportedEncodingException;
158 if (location != StandardLocation.CLASS_OUTPUT)
159 throw new IllegalStateException();
160
161 createDirectoryForFile(file);
162 return new BufferedOutputStream(new FileOutputStream(file));
163 }
164 121
165 /** 122 /**
166 * Open an writer for the file, using the encoding (if any) given in the 123 * Open an writer for the file, using the encoding (if any) given in the
167 * doclet configuration. 124 * doclet configuration.
168 * The file must have been created with a location of 125 * The file must have been created with a location of
169 * {@link StandardLocation#CLASS_OUTPUT} and a corresponding relative path. 126 * {@link StandardLocation#CLASS_OUTPUT} and a corresponding relative path.
170 */ 127 */
171 public Writer openWriter() throws IOException, UnsupportedEncodingException { 128 public abstract Writer openWriter() throws IOException, UnsupportedEncodingException;
172 if (location != StandardLocation.CLASS_OUTPUT)
173 throw new IllegalStateException();
174
175 createDirectoryForFile(file);
176 FileOutputStream fos = new FileOutputStream(file);
177 if (configuration.docencoding == null) {
178 return new BufferedWriter(new OutputStreamWriter(fos));
179 } else {
180 return new BufferedWriter(new OutputStreamWriter(fos, configuration.docencoding));
181 }
182 }
183 129
184 /** 130 /**
185 * Copy the contents of another file directly to this file. 131 * Copy the contents of another file directly to this file.
186 */ 132 */
187 public void copyFile(DocFile fromFile) throws IOException { 133 public void copyFile(DocFile fromFile) throws IOException {
188 if (location != StandardLocation.CLASS_OUTPUT)
189 throw new IllegalStateException();
190
191 createDirectoryForFile(file);
192
193 InputStream input = fromFile.openInputStream(); 134 InputStream input = fromFile.openInputStream();
194 OutputStream output = openOutputStream(); 135 OutputStream output = openOutputStream();
195 try { 136 try {
196 byte[] bytearr = new byte[1024]; 137 byte[] bytearr = new byte[1024];
197 int len; 138 int len;
213 * @param replaceNewLine if false, the file is copied as a binary file; 154 * @param replaceNewLine if false, the file is copied as a binary file;
214 * if true, the file is written line by line, using the platform line 155 * if true, the file is written line by line, using the platform line
215 * separator 156 * separator
216 */ 157 */
217 public void copyResource(DocPath resource, boolean overwrite, boolean replaceNewLine) { 158 public void copyResource(DocPath resource, boolean overwrite, boolean replaceNewLine) {
218 if (location != StandardLocation.CLASS_OUTPUT) 159 if (exists() && !overwrite)
219 throw new IllegalStateException();
220
221 if (file.exists() && !overwrite)
222 return; 160 return;
223
224 createDirectoryForFile(file);
225 161
226 try { 162 try {
227 InputStream in = Configuration.class.getResourceAsStream(resource.getPath()); 163 InputStream in = Configuration.class.getResourceAsStream(resource.getPath());
228 if (in == null) 164 if (in == null)
229 return; 165 return;
230 166
231 OutputStream out = new FileOutputStream(file); 167 OutputStream out = openOutputStream();
232 try { 168 try {
233 if (!replaceNewLine) { 169 if (!replaceNewLine) {
234 byte[] buf = new byte[2048]; 170 byte[] buf = new byte[2048];
235 int n; 171 int n;
236 while((n = in.read(buf))>0) out.write(buf,0,n); 172 while((n = in.read(buf))>0) out.write(buf,0,n);
263 throw new DocletAbortException(); 199 throw new DocletAbortException();
264 } 200 }
265 } 201 }
266 202
267 /** Return true if the file can be read. */ 203 /** Return true if the file can be read. */
268 public boolean canRead() { 204 public abstract boolean canRead();
269 return file.canRead();
270 }
271 205
272 /** Return true if the file can be written. */ 206 /** Return true if the file can be written. */
273 public boolean canWrite() { 207 public abstract boolean canWrite();
274 return file.canRead();
275 }
276 208
277 /** Return true if the file exists. */ 209 /** Return true if the file exists. */
278 public boolean exists() { 210 public abstract boolean exists();
279 return file.exists();
280 }
281 211
282 /** Return the base name (last component) of the file name. */ 212 /** Return the base name (last component) of the file name. */
283 public String getName() { 213 public abstract String getName();
284 return file.getName();
285 }
286 214
287 /** Return the file system path for this file. */ 215 /** Return the file system path for this file. */
288 public String getPath() { 216 public abstract String getPath();
289 return file.getPath(); 217
290 } 218 /** Return true if file has an absolute path name. */
291 219 public abstract boolean isAbsolute();
292 /** Return true is file has an absolute path name. */ 220
293 boolean isAbsolute() { 221 /** Return true if file identifies a directory. */
294 return file.isAbsolute(); 222 public abstract boolean isDirectory();
295 } 223
296 224 /** Return true if file identifies a file. */
297 /** Return true is file identifies a directory. */ 225 public abstract boolean isFile();
298 public boolean isDirectory() {
299 return file.isDirectory();
300 }
301
302 /** Return true is file identifies a file. */
303 public boolean isFile() {
304 return file.isFile();
305 }
306 226
307 /** Return true if this file is the same as another. */ 227 /** Return true if this file is the same as another. */
308 public boolean isSameFile(DocFile other) { 228 public abstract boolean isSameFile(DocFile other);
309 try {
310 return file.exists()
311 && file.getCanonicalFile().equals(other.file.getCanonicalFile());
312 } catch (IOException e) {
313 return false;
314 }
315 }
316 229
317 /** If the file is a directory, list its contents. */ 230 /** If the file is a directory, list its contents. */
318 public Iterable<DocFile> list() { 231 public abstract Iterable<DocFile> list() throws IOException;
319 List<DocFile> files = new ArrayList<DocFile>();
320 for (File f: file.listFiles()) {
321 files.add(new DocFile(configuration, f));
322 }
323 return files;
324 }
325 232
326 /** Create the file as a directory, including any parent directories. */ 233 /** Create the file as a directory, including any parent directories. */
327 public boolean mkdirs() { 234 public abstract boolean mkdirs();
328 return file.mkdirs();
329 }
330 235
331 /** 236 /**
332 * Derive a new file by resolving a relative path against this file. 237 * Derive a new file by resolving a relative path against this file.
333 * The new file will inherit the configuration and location of this file 238 * The new file will inherit the configuration and location of this file
334 * If this file has a path set, the new file will have a corresponding 239 * If this file has a path set, the new file will have a corresponding
335 * new path. 240 * new path.
336 */ 241 */
337 public DocFile resolve(DocPath p) { 242 public abstract DocFile resolve(DocPath p);
338 return resolve(p.getPath());
339 }
340 243
341 /** 244 /**
342 * Derive a new file by resolving a relative path against this file. 245 * Derive a new file by resolving a relative path against this file.
343 * The new file will inherit the configuration and location of this file 246 * The new file will inherit the configuration and location of this file
344 * If this file has a path set, the new file will have a corresponding 247 * If this file has a path set, the new file will have a corresponding
345 * new path. 248 * new path.
346 */ 249 */
347 public DocFile resolve(String p) { 250 public abstract DocFile resolve(String p);
348 if (location == null && path == null) {
349 return new DocFile(configuration, new File(file, p));
350 } else {
351 return new DocFile(configuration, location, path.resolve(p));
352 }
353 }
354 251
355 /** 252 /**
356 * Resolve a relative file against the given output location. 253 * Resolve a relative file against the given output location.
357 * @param locn Currently, only SOURCE_OUTPUT is supported. 254 * @param locn Currently, only SOURCE_OUTPUT is supported.
358 */ 255 */
359 public DocFile resolveAgainst(StandardLocation locn) { 256 public abstract DocFile resolveAgainst(StandardLocation locn);
360 if (locn != StandardLocation.CLASS_OUTPUT)
361 throw new IllegalArgumentException();
362 return new DocFile(configuration,
363 new File(configuration.destDirName, file.getPath()));
364 }
365
366 /**
367 * Given a path string create all the directories in the path. For example,
368 * if the path string is "java/applet", the method will create directory
369 * "java" and then "java/applet" if they don't exist. The file separator
370 * string "/" is platform dependent system property.
371 *
372 * @param path Directory path string.
373 */
374 private void createDirectoryForFile(File file) {
375 File dir = file.getParentFile();
376 if (dir == null || dir.exists() || dir.mkdirs())
377 return;
378
379 configuration.message.error(
380 "doclet.Unable_to_create_directory_0", dir.getPath());
381 throw new DocletAbortException();
382 }
383
384 /** Return a string to identify the contents of this object,
385 * for debugging purposes.
386 */
387 @Override
388 public String toString() {
389 StringBuilder sb = new StringBuilder();
390 sb.append("DocFile[");
391 if (location != null)
392 sb.append("locn:").append(location).append(",");
393 if (path != null)
394 sb.append("path:").append(path.getPath()).append(",");
395 sb.append("file:").append(file);
396 sb.append("]");
397 return sb.toString();
398 }
399 } 257 }

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