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

Thu, 29 Aug 2013 11:41:20 -0700

author
jjg
date
Thu, 29 Aug 2013 11:41:20 -0700
changeset 1985
0e6577980181
parent 1413
bdcef2ef52d2
child 2010
64328fe5e4a6
permissions
-rw-r--r--

8001669: javadoc internal DocletAbortException should set cause when appropriate
Reviewed-by: darcy

jjg@1412 1 /*
jjg@1985 2 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
jjg@1412 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@1412 4 *
jjg@1412 5 * This code is free software; you can redistribute it and/or modify it
jjg@1412 6 * under the terms of the GNU General Public License version 2 only, as
jjg@1412 7 * published by the Free Software Foundation. Oracle designates this
jjg@1412 8 * particular file as subject to the "Classpath" exception as provided
jjg@1412 9 * by Oracle in the LICENSE file that accompanied this code.
jjg@1412 10 *
jjg@1412 11 * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@1412 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@1412 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
jjg@1412 14 * version 2 for more details (a copy is included in the LICENSE file that
jjg@1412 15 * accompanied this code).
jjg@1412 16 *
jjg@1412 17 * You should have received a copy of the GNU General Public License version
jjg@1412 18 * 2 along with this work; if not, write to the Free Software Foundation,
jjg@1412 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@1412 20 *
jjg@1412 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
jjg@1412 22 * or visit www.oracle.com if you need additional information or have any
jjg@1412 23 * questions.
jjg@1412 24 */
jjg@1412 25 package com.sun.tools.doclets.internal.toolkit.util;
jjg@1412 26
jjg@1412 27
jjg@1412 28 import java.io.BufferedInputStream;
jjg@1412 29 import java.io.BufferedOutputStream;
jjg@1412 30 import java.io.BufferedWriter;
jjg@1412 31 import java.io.IOException;
jjg@1412 32 import java.io.InputStream;
jjg@1412 33 import java.io.OutputStream;
jjg@1412 34 import java.io.OutputStreamWriter;
jjg@1412 35 import java.io.UnsupportedEncodingException;
jjg@1412 36 import java.io.Writer;
jjg@1412 37 import java.nio.file.Files;
jjg@1412 38 import java.nio.file.Path;
jjg@1412 39 import java.util.ArrayList;
jjg@1412 40 import java.util.Arrays;
jjg@1412 41 import java.util.LinkedHashSet;
jjg@1412 42 import java.util.List;
jjg@1412 43 import java.util.Set;
jjg@1412 44
jjg@1413 45 import javax.tools.DocumentationTool;
jjg@1412 46 import javax.tools.FileObject;
jjg@1412 47 import javax.tools.JavaFileManager.Location;
jjg@1412 48 import javax.tools.JavaFileObject;
jjg@1412 49 import javax.tools.StandardLocation;
jjg@1412 50
jjg@1412 51 import com.sun.tools.doclets.internal.toolkit.Configuration;
jjg@1412 52 import com.sun.tools.javac.nio.PathFileManager;
jjg@1412 53
jjg@1412 54
jjg@1412 55 /**
jjg@1412 56 * Implementation of DocFileFactory using a {@link PathFileManager}.
jjg@1412 57 *
jjg@1412 58 * <p><b>This is NOT part of any supported API.
jjg@1412 59 * If you write code that depends on this, you do so at your own risk.
jjg@1412 60 * This code and its internal interfaces are subject to change or
jjg@1412 61 * deletion without notice.</b>
jjg@1412 62 *
jjg@1412 63 * @since 1.8
jjg@1412 64 */
jjg@1412 65 class PathDocFileFactory extends DocFileFactory {
jjg@1412 66 private final PathFileManager fileManager;
jjg@1412 67 private final Path destDir;
jjg@1412 68
jjg@1412 69 public PathDocFileFactory(Configuration configuration) {
jjg@1412 70 super(configuration);
jjg@1412 71 fileManager = (PathFileManager) configuration.getFileManager();
jjg@1412 72
jjg@1412 73 if (!configuration.destDirName.isEmpty()
jjg@1413 74 || !fileManager.hasLocation(DocumentationTool.Location.DOCUMENTATION_OUTPUT)) {
jjg@1412 75 try {
jjg@1412 76 String dirName = configuration.destDirName.isEmpty() ? "." : configuration.destDirName;
jjg@1412 77 Path dir = fileManager.getDefaultFileSystem().getPath(dirName);
jjg@1413 78 fileManager.setLocation(DocumentationTool.Location.DOCUMENTATION_OUTPUT, Arrays.asList(dir));
jjg@1412 79 } catch (IOException e) {
jjg@1985 80 throw new DocletAbortException(e);
jjg@1412 81 }
jjg@1412 82 }
jjg@1412 83
jjg@1413 84 destDir = fileManager.getLocation(DocumentationTool.Location.DOCUMENTATION_OUTPUT).iterator().next();
jjg@1412 85 }
jjg@1412 86
jjg@1412 87 public DocFile createFileForDirectory(String file) {
jjg@1412 88 return new StandardDocFile(fileManager.getDefaultFileSystem().getPath(file));
jjg@1412 89 }
jjg@1412 90
jjg@1412 91 public DocFile createFileForInput(String file) {
jjg@1412 92 return new StandardDocFile(fileManager.getDefaultFileSystem().getPath(file));
jjg@1412 93 }
jjg@1412 94
jjg@1412 95 public DocFile createFileForOutput(DocPath path) {
jjg@1413 96 return new StandardDocFile(DocumentationTool.Location.DOCUMENTATION_OUTPUT, path);
jjg@1412 97 }
jjg@1412 98
jjg@1412 99 @Override
jjg@1412 100 Iterable<DocFile> list(Location location, DocPath path) {
jjg@1412 101 if (location != StandardLocation.SOURCE_PATH)
jjg@1412 102 throw new IllegalArgumentException();
jjg@1412 103
jjg@1412 104 Set<DocFile> files = new LinkedHashSet<DocFile>();
jjg@1412 105 if (fileManager.hasLocation(location)) {
jjg@1412 106 for (Path f: fileManager.getLocation(location)) {
jjg@1412 107 if (Files.isDirectory(f)) {
jjg@1412 108 f = f.resolve(path.getPath());
jjg@1412 109 if (Files.exists(f))
jjg@1412 110 files.add(new StandardDocFile(f));
jjg@1412 111 }
jjg@1412 112 }
jjg@1412 113 }
jjg@1412 114 return files;
jjg@1412 115 }
jjg@1412 116
jjg@1412 117 class StandardDocFile extends DocFile {
jjg@1412 118 private Path file;
jjg@1412 119
jjg@1412 120 /** Create a StandardDocFile for a given file. */
jjg@1412 121 private StandardDocFile(Path file) {
jjg@1412 122 super(configuration);
jjg@1412 123 this.file = file;
jjg@1412 124 }
jjg@1412 125
jjg@1412 126 /** Create a StandardDocFile for a given location and relative path. */
jjg@1412 127 private StandardDocFile(Location location, DocPath path) {
jjg@1412 128 super(configuration, location, path);
jjg@1412 129 this.file = destDir.resolve(path.getPath());
jjg@1412 130 }
jjg@1412 131
jjg@1412 132 /** Open an input stream for the file. */
jjg@1412 133 public InputStream openInputStream() throws IOException {
jjg@1412 134 JavaFileObject fo = getJavaFileObjectForInput(file);
jjg@1412 135 return new BufferedInputStream(fo.openInputStream());
jjg@1412 136 }
jjg@1412 137
jjg@1412 138 /**
jjg@1412 139 * Open an output stream for the file.
jjg@1412 140 * The file must have been created with a location of
jjg@1413 141 * {@link DocumentationTool.Location#DOCUMENTATION_OUTPUT} and a corresponding relative path.
jjg@1412 142 */
jjg@1412 143 public OutputStream openOutputStream() throws IOException, UnsupportedEncodingException {
jjg@1413 144 if (location != DocumentationTool.Location.DOCUMENTATION_OUTPUT)
jjg@1412 145 throw new IllegalStateException();
jjg@1412 146
jjg@1412 147 OutputStream out = getFileObjectForOutput(path).openOutputStream();
jjg@1412 148 return new BufferedOutputStream(out);
jjg@1412 149 }
jjg@1412 150
jjg@1412 151 /**
jjg@1412 152 * Open an writer for the file, using the encoding (if any) given in the
jjg@1412 153 * doclet configuration.
jjg@1412 154 * The file must have been created with a location of
jjg@1413 155 * {@link DocumentationTool.Location#DOCUMENTATION_OUTPUT} and a corresponding relative path.
jjg@1412 156 */
jjg@1412 157 public Writer openWriter() throws IOException, UnsupportedEncodingException {
jjg@1413 158 if (location != DocumentationTool.Location.DOCUMENTATION_OUTPUT)
jjg@1412 159 throw new IllegalStateException();
jjg@1412 160
jjg@1412 161 OutputStream out = getFileObjectForOutput(path).openOutputStream();
jjg@1412 162 if (configuration.docencoding == null) {
jjg@1412 163 return new BufferedWriter(new OutputStreamWriter(out));
jjg@1412 164 } else {
jjg@1412 165 return new BufferedWriter(new OutputStreamWriter(out, configuration.docencoding));
jjg@1412 166 }
jjg@1412 167 }
jjg@1412 168
jjg@1412 169 /** Return true if the file can be read. */
jjg@1412 170 public boolean canRead() {
jjg@1412 171 return Files.isReadable(file);
jjg@1412 172 }
jjg@1412 173
jjg@1412 174 /** Return true if the file can be written. */
jjg@1412 175 public boolean canWrite() {
jjg@1412 176 return Files.isWritable(file);
jjg@1412 177 }
jjg@1412 178
jjg@1412 179 /** Return true if the file exists. */
jjg@1412 180 public boolean exists() {
jjg@1412 181 return Files.exists(file);
jjg@1412 182 }
jjg@1412 183
jjg@1412 184 /** Return the base name (last component) of the file name. */
jjg@1412 185 public String getName() {
jjg@1412 186 return file.getFileName().toString();
jjg@1412 187 }
jjg@1412 188
jjg@1412 189 /** Return the file system path for this file. */
jjg@1412 190 public String getPath() {
jjg@1412 191 return file.toString();
jjg@1412 192 }
jjg@1412 193
jjg@1412 194 /** Return true is file has an absolute path name. */
jjg@1412 195 public boolean isAbsolute() {
jjg@1412 196 return file.isAbsolute();
jjg@1412 197 }
jjg@1412 198
jjg@1412 199 /** Return true is file identifies a directory. */
jjg@1412 200 public boolean isDirectory() {
jjg@1412 201 return Files.isDirectory(file);
jjg@1412 202 }
jjg@1412 203
jjg@1412 204 /** Return true is file identifies a file. */
jjg@1412 205 public boolean isFile() {
jjg@1412 206 return Files.isRegularFile(file);
jjg@1412 207 }
jjg@1412 208
jjg@1412 209 /** Return true if this file is the same as another. */
jjg@1412 210 public boolean isSameFile(DocFile other) {
jjg@1412 211 if (!(other instanceof StandardDocFile))
jjg@1412 212 return false;
jjg@1412 213
jjg@1412 214 try {
jjg@1412 215 return Files.isSameFile(file, ((StandardDocFile) other).file);
jjg@1412 216 } catch (IOException e) {
jjg@1412 217 return false;
jjg@1412 218 }
jjg@1412 219 }
jjg@1412 220
jjg@1412 221 /** If the file is a directory, list its contents. */
jjg@1412 222 public Iterable<DocFile> list() throws IOException {
jjg@1412 223 List<DocFile> files = new ArrayList<DocFile>();
jjg@1412 224 for (Path f: Files.newDirectoryStream(file)) {
jjg@1412 225 files.add(new StandardDocFile(f));
jjg@1412 226 }
jjg@1412 227 return files;
jjg@1412 228 }
jjg@1412 229
jjg@1412 230 /** Create the file as a directory, including any parent directories. */
jjg@1412 231 public boolean mkdirs() {
jjg@1412 232 try {
jjg@1412 233 Files.createDirectories(file);
jjg@1412 234 return true;
jjg@1412 235 } catch (IOException e) {
jjg@1412 236 return false;
jjg@1412 237 }
jjg@1412 238 }
jjg@1412 239
jjg@1412 240 /**
jjg@1412 241 * Derive a new file by resolving a relative path against this file.
jjg@1412 242 * The new file will inherit the configuration and location of this file
jjg@1412 243 * If this file has a path set, the new file will have a corresponding
jjg@1412 244 * new path.
jjg@1412 245 */
jjg@1412 246 public DocFile resolve(DocPath p) {
jjg@1412 247 return resolve(p.getPath());
jjg@1412 248 }
jjg@1412 249
jjg@1412 250 /**
jjg@1412 251 * Derive a new file by resolving a relative path against this file.
jjg@1412 252 * The new file will inherit the configuration and location of this file
jjg@1412 253 * If this file has a path set, the new file will have a corresponding
jjg@1412 254 * new path.
jjg@1412 255 */
jjg@1412 256 public DocFile resolve(String p) {
jjg@1412 257 if (location == null && path == null) {
jjg@1412 258 return new StandardDocFile(file.resolve(p));
jjg@1412 259 } else {
jjg@1412 260 return new StandardDocFile(location, path.resolve(p));
jjg@1412 261 }
jjg@1412 262 }
jjg@1412 263
jjg@1412 264 /**
jjg@1412 265 * Resolve a relative file against the given output location.
jjg@1413 266 * @param locn Currently, only
jjg@1413 267 * {@link DocumentationTool.Location.DOCUMENTATION_OUTPUT} is supported.
jjg@1412 268 */
jjg@1413 269 public DocFile resolveAgainst(Location locn) {
jjg@1413 270 if (locn != DocumentationTool.Location.DOCUMENTATION_OUTPUT)
jjg@1412 271 throw new IllegalArgumentException();
jjg@1412 272 return new StandardDocFile(destDir.resolve(file));
jjg@1412 273 }
jjg@1412 274
jjg@1412 275 /** Return a string to identify the contents of this object,
jjg@1412 276 * for debugging purposes.
jjg@1412 277 */
jjg@1412 278 @Override
jjg@1412 279 public String toString() {
jjg@1412 280 StringBuilder sb = new StringBuilder();
jjg@1412 281 sb.append("PathDocFile[");
jjg@1412 282 if (location != null)
jjg@1412 283 sb.append("locn:").append(location).append(",");
jjg@1412 284 if (path != null)
jjg@1412 285 sb.append("path:").append(path.getPath()).append(",");
jjg@1412 286 sb.append("file:").append(file);
jjg@1412 287 sb.append("]");
jjg@1412 288 return sb.toString();
jjg@1412 289 }
jjg@1412 290
jjg@1412 291 private JavaFileObject getJavaFileObjectForInput(Path file) {
jjg@1412 292 return fileManager.getJavaFileObjects(file).iterator().next();
jjg@1412 293 }
jjg@1412 294
jjg@1412 295 private FileObject getFileObjectForOutput(DocPath path) throws IOException {
jjg@1412 296 // break the path into a package-part and the rest, by finding
jjg@1412 297 // the position of the last '/' before an invalid character for a
jjg@1412 298 // package name, such as the "." before an extension or the "-"
jjg@1412 299 // in filenames like package-summary.html, doc-files or src-html.
jjg@1412 300 String p = path.getPath();
jjg@1412 301 int lastSep = -1;
jjg@1412 302 for (int i = 0; i < p.length(); i++) {
jjg@1412 303 char ch = p.charAt(i);
jjg@1412 304 if (ch == '/') {
jjg@1412 305 lastSep = i;
jjg@1412 306 } else if (i == lastSep + 1 && !Character.isJavaIdentifierStart(ch)
jjg@1412 307 || !Character.isJavaIdentifierPart(ch)) {
jjg@1412 308 break;
jjg@1412 309 }
jjg@1412 310 }
jjg@1412 311 String pkg = (lastSep == -1) ? "" : p.substring(0, lastSep);
jjg@1412 312 String rest = p.substring(lastSep + 1);
jjg@1412 313 return fileManager.getFileForOutput(location, pkg, rest, null);
jjg@1412 314 }
jjg@1412 315 }
jjg@1412 316
jjg@1412 317 }

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