1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/classes/com/sun/tools/doclets/internal/toolkit/util/PathDocFileFactory.java Thu Nov 15 19:54:20 2012 -0800
1.3 @@ -0,0 +1,315 @@
1.4 +/*
1.5 + * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +package com.sun.tools.doclets.internal.toolkit.util;
1.29 +
1.30 +
1.31 +import java.io.BufferedInputStream;
1.32 +import java.io.BufferedOutputStream;
1.33 +import java.io.BufferedWriter;
1.34 +import java.io.IOException;
1.35 +import java.io.InputStream;
1.36 +import java.io.OutputStream;
1.37 +import java.io.OutputStreamWriter;
1.38 +import java.io.UnsupportedEncodingException;
1.39 +import java.io.Writer;
1.40 +import java.nio.file.Files;
1.41 +import java.nio.file.Path;
1.42 +import java.util.ArrayList;
1.43 +import java.util.Arrays;
1.44 +import java.util.LinkedHashSet;
1.45 +import java.util.List;
1.46 +import java.util.Set;
1.47 +
1.48 +import javax.tools.FileObject;
1.49 +import javax.tools.JavaFileManager.Location;
1.50 +import javax.tools.JavaFileObject;
1.51 +import javax.tools.StandardLocation;
1.52 +
1.53 +import com.sun.tools.doclets.internal.toolkit.Configuration;
1.54 +import com.sun.tools.javac.nio.PathFileManager;
1.55 +
1.56 +
1.57 +/**
1.58 + * Implementation of DocFileFactory using a {@link PathFileManager}.
1.59 + *
1.60 + * <p><b>This is NOT part of any supported API.
1.61 + * If you write code that depends on this, you do so at your own risk.
1.62 + * This code and its internal interfaces are subject to change or
1.63 + * deletion without notice.</b>
1.64 + *
1.65 + * @since 1.8
1.66 + */
1.67 +class PathDocFileFactory extends DocFileFactory {
1.68 + private final PathFileManager fileManager;
1.69 + private final Path destDir;
1.70 +
1.71 + public PathDocFileFactory(Configuration configuration) {
1.72 + super(configuration);
1.73 + fileManager = (PathFileManager) configuration.getFileManager();
1.74 +
1.75 + if (!configuration.destDirName.isEmpty()
1.76 + || !fileManager.hasLocation(StandardLocation.CLASS_OUTPUT)) {
1.77 + try {
1.78 + String dirName = configuration.destDirName.isEmpty() ? "." : configuration.destDirName;
1.79 + Path dir = fileManager.getDefaultFileSystem().getPath(dirName);
1.80 + fileManager.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(dir));
1.81 + } catch (IOException e) {
1.82 + throw new DocletAbortException();
1.83 + }
1.84 + }
1.85 +
1.86 + destDir = fileManager.getLocation(StandardLocation.CLASS_OUTPUT).iterator().next();
1.87 + }
1.88 +
1.89 + public DocFile createFileForDirectory(String file) {
1.90 + return new StandardDocFile(fileManager.getDefaultFileSystem().getPath(file));
1.91 + }
1.92 +
1.93 + public DocFile createFileForInput(String file) {
1.94 + return new StandardDocFile(fileManager.getDefaultFileSystem().getPath(file));
1.95 + }
1.96 +
1.97 + public DocFile createFileForOutput(DocPath path) {
1.98 + return new StandardDocFile(StandardLocation.CLASS_OUTPUT, path);
1.99 + }
1.100 +
1.101 + @Override
1.102 + Iterable<DocFile> list(Location location, DocPath path) {
1.103 + if (location != StandardLocation.SOURCE_PATH)
1.104 + throw new IllegalArgumentException();
1.105 +
1.106 + Set<DocFile> files = new LinkedHashSet<DocFile>();
1.107 + if (fileManager.hasLocation(location)) {
1.108 + for (Path f: fileManager.getLocation(location)) {
1.109 + if (Files.isDirectory(f)) {
1.110 + f = f.resolve(path.getPath());
1.111 + if (Files.exists(f))
1.112 + files.add(new StandardDocFile(f));
1.113 + }
1.114 + }
1.115 + }
1.116 + return files;
1.117 + }
1.118 +
1.119 + class StandardDocFile extends DocFile {
1.120 + private Path file;
1.121 +
1.122 + /** Create a StandardDocFile for a given file. */
1.123 + private StandardDocFile(Path file) {
1.124 + super(configuration);
1.125 + this.file = file;
1.126 + }
1.127 +
1.128 + /** Create a StandardDocFile for a given location and relative path. */
1.129 + private StandardDocFile(Location location, DocPath path) {
1.130 + super(configuration, location, path);
1.131 + this.file = destDir.resolve(path.getPath());
1.132 + }
1.133 +
1.134 + /** Open an input stream for the file. */
1.135 + public InputStream openInputStream() throws IOException {
1.136 + JavaFileObject fo = getJavaFileObjectForInput(file);
1.137 + return new BufferedInputStream(fo.openInputStream());
1.138 + }
1.139 +
1.140 + /**
1.141 + * Open an output stream for the file.
1.142 + * The file must have been created with a location of
1.143 + * {@link StandardLocation#CLASS_OUTPUT} and a corresponding relative path.
1.144 + */
1.145 + public OutputStream openOutputStream() throws IOException, UnsupportedEncodingException {
1.146 + if (location != StandardLocation.CLASS_OUTPUT)
1.147 + throw new IllegalStateException();
1.148 +
1.149 + OutputStream out = getFileObjectForOutput(path).openOutputStream();
1.150 + return new BufferedOutputStream(out);
1.151 + }
1.152 +
1.153 + /**
1.154 + * Open an writer for the file, using the encoding (if any) given in the
1.155 + * doclet configuration.
1.156 + * The file must have been created with a location of
1.157 + * {@link StandardLocation#CLASS_OUTPUT} and a corresponding relative path.
1.158 + */
1.159 + public Writer openWriter() throws IOException, UnsupportedEncodingException {
1.160 + if (location != StandardLocation.CLASS_OUTPUT)
1.161 + throw new IllegalStateException();
1.162 +
1.163 + OutputStream out = getFileObjectForOutput(path).openOutputStream();
1.164 + if (configuration.docencoding == null) {
1.165 + return new BufferedWriter(new OutputStreamWriter(out));
1.166 + } else {
1.167 + return new BufferedWriter(new OutputStreamWriter(out, configuration.docencoding));
1.168 + }
1.169 + }
1.170 +
1.171 + /** Return true if the file can be read. */
1.172 + public boolean canRead() {
1.173 + return Files.isReadable(file);
1.174 + }
1.175 +
1.176 + /** Return true if the file can be written. */
1.177 + public boolean canWrite() {
1.178 + return Files.isWritable(file);
1.179 + }
1.180 +
1.181 + /** Return true if the file exists. */
1.182 + public boolean exists() {
1.183 + return Files.exists(file);
1.184 + }
1.185 +
1.186 + /** Return the base name (last component) of the file name. */
1.187 + public String getName() {
1.188 + return file.getFileName().toString();
1.189 + }
1.190 +
1.191 + /** Return the file system path for this file. */
1.192 + public String getPath() {
1.193 + return file.toString();
1.194 + }
1.195 +
1.196 + /** Return true is file has an absolute path name. */
1.197 + public boolean isAbsolute() {
1.198 + return file.isAbsolute();
1.199 + }
1.200 +
1.201 + /** Return true is file identifies a directory. */
1.202 + public boolean isDirectory() {
1.203 + return Files.isDirectory(file);
1.204 + }
1.205 +
1.206 + /** Return true is file identifies a file. */
1.207 + public boolean isFile() {
1.208 + return Files.isRegularFile(file);
1.209 + }
1.210 +
1.211 + /** Return true if this file is the same as another. */
1.212 + public boolean isSameFile(DocFile other) {
1.213 + if (!(other instanceof StandardDocFile))
1.214 + return false;
1.215 +
1.216 + try {
1.217 + return Files.isSameFile(file, ((StandardDocFile) other).file);
1.218 + } catch (IOException e) {
1.219 + return false;
1.220 + }
1.221 + }
1.222 +
1.223 + /** If the file is a directory, list its contents. */
1.224 + public Iterable<DocFile> list() throws IOException {
1.225 + List<DocFile> files = new ArrayList<DocFile>();
1.226 + for (Path f: Files.newDirectoryStream(file)) {
1.227 + files.add(new StandardDocFile(f));
1.228 + }
1.229 + return files;
1.230 + }
1.231 +
1.232 + /** Create the file as a directory, including any parent directories. */
1.233 + public boolean mkdirs() {
1.234 + try {
1.235 + Files.createDirectories(file);
1.236 + return true;
1.237 + } catch (IOException e) {
1.238 + return false;
1.239 + }
1.240 + }
1.241 +
1.242 + /**
1.243 + * Derive a new file by resolving a relative path against this file.
1.244 + * The new file will inherit the configuration and location of this file
1.245 + * If this file has a path set, the new file will have a corresponding
1.246 + * new path.
1.247 + */
1.248 + public DocFile resolve(DocPath p) {
1.249 + return resolve(p.getPath());
1.250 + }
1.251 +
1.252 + /**
1.253 + * Derive a new file by resolving a relative path against this file.
1.254 + * The new file will inherit the configuration and location of this file
1.255 + * If this file has a path set, the new file will have a corresponding
1.256 + * new path.
1.257 + */
1.258 + public DocFile resolve(String p) {
1.259 + if (location == null && path == null) {
1.260 + return new StandardDocFile(file.resolve(p));
1.261 + } else {
1.262 + return new StandardDocFile(location, path.resolve(p));
1.263 + }
1.264 + }
1.265 +
1.266 + /**
1.267 + * Resolve a relative file against the given output location.
1.268 + * @param locn Currently, only SOURCE_OUTPUT is supported.
1.269 + */
1.270 + public DocFile resolveAgainst(StandardLocation locn) {
1.271 + if (locn != StandardLocation.CLASS_OUTPUT)
1.272 + throw new IllegalArgumentException();
1.273 + return new StandardDocFile(destDir.resolve(file));
1.274 + }
1.275 +
1.276 + /** Return a string to identify the contents of this object,
1.277 + * for debugging purposes.
1.278 + */
1.279 + @Override
1.280 + public String toString() {
1.281 + StringBuilder sb = new StringBuilder();
1.282 + sb.append("PathDocFile[");
1.283 + if (location != null)
1.284 + sb.append("locn:").append(location).append(",");
1.285 + if (path != null)
1.286 + sb.append("path:").append(path.getPath()).append(",");
1.287 + sb.append("file:").append(file);
1.288 + sb.append("]");
1.289 + return sb.toString();
1.290 + }
1.291 +
1.292 + private JavaFileObject getJavaFileObjectForInput(Path file) {
1.293 + return fileManager.getJavaFileObjects(file).iterator().next();
1.294 + }
1.295 +
1.296 + private FileObject getFileObjectForOutput(DocPath path) throws IOException {
1.297 + // break the path into a package-part and the rest, by finding
1.298 + // the position of the last '/' before an invalid character for a
1.299 + // package name, such as the "." before an extension or the "-"
1.300 + // in filenames like package-summary.html, doc-files or src-html.
1.301 + String p = path.getPath();
1.302 + int lastSep = -1;
1.303 + for (int i = 0; i < p.length(); i++) {
1.304 + char ch = p.charAt(i);
1.305 + if (ch == '/') {
1.306 + lastSep = i;
1.307 + } else if (i == lastSep + 1 && !Character.isJavaIdentifierStart(ch)
1.308 + || !Character.isJavaIdentifierPart(ch)) {
1.309 + break;
1.310 + }
1.311 + }
1.312 + String pkg = (lastSep == -1) ? "" : p.substring(0, lastSep);
1.313 + String rest = p.substring(lastSep + 1);
1.314 + return fileManager.getFileForOutput(location, pkg, rest, null);
1.315 + }
1.316 + }
1.317 +
1.318 +}
