| /* |
| * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.tools.doclets.internal.toolkit.util; |
| |
| import java.io.BufferedReader; |
| import java.io.BufferedWriter; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.UnsupportedEncodingException; |
| import java.io.Writer; |
| |
| import javax.tools.JavaFileManager.Location; |
| import javax.tools.StandardLocation; |
| |
| import com.sun.tools.doclets.internal.toolkit.Configuration; |
| |
| /** |
| * Abstraction for handling files, which may be specified directly |
| * (e.g. via a path on the command line) or relative to a Location. |
| * |
| * <p><b>This is NOT part of any supported API. |
| * If you write code that depends on this, you do so at your own risk. |
| * This code and its internal interfaces are subject to change or |
| * deletion without notice.</b> |
| * |
| * @since 8 |
| */ |
| public abstract class DocFile { |
| |
| /** Create a DocFile for a directory. */ |
| public static DocFile createFileForDirectory(Configuration configuration, String file) { |
| return DocFileFactory.getFactory(configuration).createFileForDirectory(file); |
| } |
| |
| /** Create a DocFile for a file that will be opened for reading. */ |
| public static DocFile createFileForInput(Configuration configuration, String file) { |
| return DocFileFactory.getFactory(configuration).createFileForInput(file); |
| } |
| |
| /** Create a DocFile for a file that will be opened for writing. */ |
| public static DocFile createFileForOutput(Configuration configuration, DocPath path) { |
| return DocFileFactory.getFactory(configuration).createFileForOutput(path); |
| } |
| |
| private final Configuration configuration; |
| |
| /** |
| * The location for this file. Maybe null if the file was created without |
| * a location or path. |
| */ |
| protected final Location location; |
| |
| /** |
| * The path relative to the (output) location. Maybe null if the file was |
| * created without a location or path. |
| */ |
| protected final DocPath path; |
| |
| /** |
| * List the directories and files found in subdirectories along the |
| * elements of the given location. |
| * @param configuration the doclet configuration |
| * @param location currently, only {@link StandardLocation#SOURCE_PATH} is supported. |
| * @param path the subdirectory of the directories of the location for which to |
| * list files |
| */ |
| public static Iterable<DocFile> list(Configuration configuration, Location location, DocPath path) { |
| return DocFileFactory.getFactory(configuration).list(location, path); |
| } |
| |
| /** Create a DocFile without a location or path */ |
| protected DocFile(Configuration configuration) { |
| this.configuration = configuration; |
| this.location = null; |
| this.path = null; |
| } |
| |
| /** Create a DocFile for a given location and relative path. */ |
| protected DocFile(Configuration configuration, Location location, DocPath path) { |
| this.configuration = configuration; |
| this.location = location; |
| this.path = path; |
| } |
| |
| /** Open an input stream for the file. */ |
| public abstract InputStream openInputStream() throws IOException; |
| |
| /** |
| * Open an output stream for the file. |
| * The file must have been created with a location of |
| * {@link DocumentationTool.Location#DOCUMENTATION_OUTPUT} |
| * and a corresponding relative path. |
| */ |
| public abstract OutputStream openOutputStream() throws IOException, UnsupportedEncodingException; |
| |
| /** |
| * Open an writer for the file, using the encoding (if any) given in the |
| * doclet configuration. |
| * The file must have been created with a location of |
| * {@link DocumentationTool.Location#DOCUMENTATION_OUTPUT} and a corresponding relative path. |
| */ |
| public abstract Writer openWriter() throws IOException, UnsupportedEncodingException; |
| |
| /** |
| * Copy the contents of another file directly to this file. |
| */ |
| public void copyFile(DocFile fromFile) throws IOException { |
| InputStream input = fromFile.openInputStream(); |
| OutputStream output = openOutputStream(); |
| try { |
| byte[] bytearr = new byte[1024]; |
| int len; |
| while ((len = input.read(bytearr)) != -1) { |
| output.write(bytearr, 0, len); |
| } |
| } catch (FileNotFoundException exc) { |
| } catch (SecurityException exc) { |
| } finally { |
| input.close(); |
| output.close(); |
| } |
| } |
| |
| /** |
| * Copy the contents of a resource file to this file. |
| * @param resource the path of the resource, relative to the package of this class |
| * @param overwrite whether or not to overwrite the file if it already exists |
| * @param replaceNewLine if false, the file is copied as a binary file; |
| * if true, the file is written line by line, using the platform line |
| * separator |
| */ |
| public void copyResource(DocPath resource, boolean overwrite, boolean replaceNewLine) { |
| if (exists() && !overwrite) |
| return; |
| |
| try { |
| InputStream in = Configuration.class.getResourceAsStream(resource.getPath()); |
| if (in == null) |
| return; |
| |
| OutputStream out = openOutputStream(); |
| try { |
| if (!replaceNewLine) { |
| byte[] buf = new byte[2048]; |
| int n; |
| while((n = in.read(buf))>0) out.write(buf,0,n); |
| } else { |
| BufferedReader reader = new BufferedReader(new InputStreamReader(in)); |
| BufferedWriter writer; |
| if (configuration.docencoding == null) { |
| writer = new BufferedWriter(new OutputStreamWriter(out)); |
| } else { |
| writer = new BufferedWriter(new OutputStreamWriter(out, |
| configuration.docencoding)); |
| } |
| try { |
| String line; |
| while ((line = reader.readLine()) != null) { |
| writer.write(line); |
| writer.write(DocletConstants.NL); |
| } |
| } finally { |
| reader.close(); |
| writer.close(); |
| } |
| } |
| } finally { |
| in.close(); |
| out.close(); |
| } |
| } catch (IOException e) { |
| e.printStackTrace(System.err); |
| throw new DocletAbortException(e); |
| } |
| } |
| |
| /** Return true if the file can be read. */ |
| public abstract boolean canRead(); |
| |
| /** Return true if the file can be written. */ |
| public abstract boolean canWrite(); |
| |
| /** Return true if the file exists. */ |
| public abstract boolean exists(); |
| |
| /** Return the base name (last component) of the file name. */ |
| public abstract String getName(); |
| |
| /** Return the file system path for this file. */ |
| public abstract String getPath(); |
| |
| /** Return true if file has an absolute path name. */ |
| public abstract boolean isAbsolute(); |
| |
| /** Return true if file identifies a directory. */ |
| public abstract boolean isDirectory(); |
| |
| /** Return true if file identifies a file. */ |
| public abstract boolean isFile(); |
| |
| /** Return true if this file is the same as another. */ |
| public abstract boolean isSameFile(DocFile other); |
| |
| /** If the file is a directory, list its contents. */ |
| public abstract Iterable<DocFile> list() throws IOException; |
| |
| /** Create the file as a directory, including any parent directories. */ |
| public abstract boolean mkdirs(); |
| |
| /** |
| * Derive a new file by resolving a relative path against this file. |
| * The new file will inherit the configuration and location of this file |
| * If this file has a path set, the new file will have a corresponding |
| * new path. |
| */ |
| public abstract DocFile resolve(DocPath p); |
| |
| /** |
| * Derive a new file by resolving a relative path against this file. |
| * The new file will inherit the configuration and location of this file |
| * If this file has a path set, the new file will have a corresponding |
| * new path. |
| */ |
| public abstract DocFile resolve(String p); |
| |
| /** |
| * Resolve a relative file against the given output location. |
| * @param locn Currently, only |
| * {@link DocumentationTool.Location#DOCUMENTATION_OUTPUT} is supported. |
| */ |
| public abstract DocFile resolveAgainst(Location locn); |
| } |