| /* |
| * Copyright (c) 2003, 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.javac.file; |
| |
| import java.io.FileNotFoundException; |
| import java.util.Iterator; |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.EnumMap; |
| import java.util.EnumSet; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.LinkedHashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.StringTokenizer; |
| import java.util.zip.ZipFile; |
| import javax.tools.JavaFileManager.Location; |
| import javax.tools.StandardLocation; |
| |
| import com.sun.tools.javac.code.Lint; |
| import com.sun.tools.javac.main.Option; |
| import com.sun.tools.javac.util.ListBuffer; |
| import com.sun.tools.javac.util.Log; |
| import com.sun.tools.javac.util.Options; |
| import com.sun.tools.javac.util.StringUtils; |
| |
| import javax.tools.JavaFileManager; |
| import javax.tools.StandardJavaFileManager; |
| import static javax.tools.StandardLocation.*; |
| import static com.sun.tools.javac.main.Option.*; |
| |
| /** This class converts command line arguments, environment variables |
| * and system properties (in File.pathSeparator-separated String form) |
| * into a boot class path, user class path, and source path (in |
| * {@code Collection<String>} form). |
| * |
| * <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> |
| */ |
| public class Locations { |
| |
| /** The log to use for warning output */ |
| private Log log; |
| |
| /** Collection of command-line options */ |
| private Options options; |
| |
| /** Handler for -Xlint options */ |
| private Lint lint; |
| |
| /** Access to (possibly cached) file info */ |
| private FSInfo fsInfo; |
| |
| /** Whether to warn about non-existent path elements */ |
| private boolean warn; |
| |
| // TODO: remove need for this |
| private boolean inited = false; // TODO? caching bad? |
| |
| public Locations() { |
| initHandlers(); |
| } |
| |
| public void update(Log log, Options options, Lint lint, FSInfo fsInfo) { |
| this.log = log; |
| this.options = options; |
| this.lint = lint; |
| this.fsInfo = fsInfo; |
| } |
| |
| public Collection<File> bootClassPath() { |
| return getLocation(PLATFORM_CLASS_PATH); |
| } |
| |
| public boolean isDefaultBootClassPath() { |
| BootClassPathLocationHandler h = |
| (BootClassPathLocationHandler) getHandler(PLATFORM_CLASS_PATH); |
| return h.isDefault(); |
| } |
| |
| boolean isDefaultBootClassPathRtJar(File file) { |
| BootClassPathLocationHandler h = |
| (BootClassPathLocationHandler) getHandler(PLATFORM_CLASS_PATH); |
| return h.isDefaultRtJar(file); |
| } |
| |
| public Collection<File> userClassPath() { |
| return getLocation(CLASS_PATH); |
| } |
| |
| public Collection<File> sourcePath() { |
| Collection<File> p = getLocation(SOURCE_PATH); |
| // TODO: this should be handled by the LocationHandler |
| return p == null || p.isEmpty() ? null : p; |
| } |
| |
| /** |
| * Split a path into its elements. Empty path elements will be ignored. |
| * @param path The path to be split |
| * @return The elements of the path |
| */ |
| private static Iterable<File> getPathEntries(String path) { |
| return getPathEntries(path, null); |
| } |
| |
| /** |
| * Split a path into its elements. If emptyPathDefault is not null, all |
| * empty elements in the path, including empty elements at either end of |
| * the path, will be replaced with the value of emptyPathDefault. |
| * @param path The path to be split |
| * @param emptyPathDefault The value to substitute for empty path elements, |
| * or null, to ignore empty path elements |
| * @return The elements of the path |
| */ |
| private static Iterable<File> getPathEntries(String path, File emptyPathDefault) { |
| ListBuffer<File> entries = new ListBuffer<File>(); |
| int start = 0; |
| while (start <= path.length()) { |
| int sep = path.indexOf(File.pathSeparatorChar, start); |
| if (sep == -1) |
| sep = path.length(); |
| if (start < sep) |
| entries.add(new File(path.substring(start, sep))); |
| else if (emptyPathDefault != null) |
| entries.add(emptyPathDefault); |
| start = sep + 1; |
| } |
| return entries; |
| } |
| |
| /** |
| * Utility class to help evaluate a path option. |
| * Duplicate entries are ignored, jar class paths can be expanded. |
| */ |
| private class Path extends LinkedHashSet<File> { |
| private static final long serialVersionUID = 0; |
| |
| private boolean expandJarClassPaths = false; |
| private Set<File> canonicalValues = new HashSet<File>(); |
| |
| public Path expandJarClassPaths(boolean x) { |
| expandJarClassPaths = x; |
| return this; |
| } |
| |
| /** What to use when path element is the empty string */ |
| private File emptyPathDefault = null; |
| |
| public Path emptyPathDefault(File x) { |
| emptyPathDefault = x; |
| return this; |
| } |
| |
| public Path() { super(); } |
| |
| public Path addDirectories(String dirs, boolean warn) { |
| boolean prev = expandJarClassPaths; |
| expandJarClassPaths = true; |
| try { |
| if (dirs != null) |
| for (File dir : getPathEntries(dirs)) |
| addDirectory(dir, warn); |
| return this; |
| } finally { |
| expandJarClassPaths = prev; |
| } |
| } |
| |
| public Path addDirectories(String dirs) { |
| return addDirectories(dirs, warn); |
| } |
| |
| private void addDirectory(File dir, boolean warn) { |
| if (!dir.isDirectory()) { |
| if (warn) |
| log.warning(Lint.LintCategory.PATH, |
| "dir.path.element.not.found", dir); |
| return; |
| } |
| |
| File[] files = dir.listFiles(); |
| if (files == null) |
| return; |
| |
| for (File direntry : files) { |
| if (isArchive(direntry)) |
| addFile(direntry, warn); |
| } |
| } |
| |
| public Path addFiles(String files, boolean warn) { |
| if (files != null) { |
| addFiles(getPathEntries(files, emptyPathDefault), warn); |
| } |
| return this; |
| } |
| |
| public Path addFiles(String files) { |
| return addFiles(files, warn); |
| } |
| |
| public Path addFiles(Iterable<? extends File> files, boolean warn) { |
| if (files != null) { |
| for (File file: files) |
| addFile(file, warn); |
| } |
| return this; |
| } |
| |
| public Path addFiles(Iterable<? extends File> files) { |
| return addFiles(files, warn); |
| } |
| |
| public void addFile(File file, boolean warn) { |
| if (contains(file)) { |
| // discard duplicates |
| return; |
| } |
| |
| if (! fsInfo.exists(file)) { |
| /* No such file or directory exists */ |
| if (warn) { |
| log.warning(Lint.LintCategory.PATH, |
| "path.element.not.found", file); |
| } |
| super.add(file); |
| return; |
| } |
| |
| File canonFile = fsInfo.getCanonicalFile(file); |
| if (canonicalValues.contains(canonFile)) { |
| /* Discard duplicates and avoid infinite recursion */ |
| return; |
| } |
| |
| if (fsInfo.isFile(file)) { |
| /* File is an ordinary file. */ |
| if (!isArchive(file)) { |
| /* Not a recognized extension; open it to see if |
| it looks like a valid zip file. */ |
| try { |
| ZipFile z = new ZipFile(file); |
| z.close(); |
| if (warn) { |
| log.warning(Lint.LintCategory.PATH, |
| "unexpected.archive.file", file); |
| } |
| } catch (IOException e) { |
| // FIXME: include e.getLocalizedMessage in warning |
| if (warn) { |
| log.warning(Lint.LintCategory.PATH, |
| "invalid.archive.file", file); |
| } |
| return; |
| } |
| } |
| } |
| |
| /* Now what we have left is either a directory or a file name |
| conforming to archive naming convention */ |
| super.add(file); |
| canonicalValues.add(canonFile); |
| |
| if (expandJarClassPaths && fsInfo.isFile(file)) |
| addJarClassPath(file, warn); |
| } |
| |
| // Adds referenced classpath elements from a jar's Class-Path |
| // Manifest entry. In some future release, we may want to |
| // update this code to recognize URLs rather than simple |
| // filenames, but if we do, we should redo all path-related code. |
| private void addJarClassPath(File jarFile, boolean warn) { |
| try { |
| for (File f: fsInfo.getJarClassPath(jarFile)) { |
| addFile(f, warn); |
| } |
| } catch (IOException e) { |
| log.error("error.reading.file", jarFile, JavacFileManager.getMessage(e)); |
| } |
| } |
| } |
| |
| /** |
| * Base class for handling support for the representation of Locations. |
| * Implementations are responsible for handling the interactions between |
| * the command line options for a location, and API access via setLocation. |
| * @see #initHandlers |
| * @see #getHandler |
| */ |
| protected abstract class LocationHandler { |
| final Location location; |
| final Set<Option> options; |
| |
| /** |
| * Create a handler. The location and options provide a way to map |
| * from a location or an option to the corresponding handler. |
| * @see #initHandlers |
| */ |
| protected LocationHandler(Location location, Option... options) { |
| this.location = location; |
| this.options = options.length == 0 ? |
| EnumSet.noneOf(Option.class): |
| EnumSet.copyOf(Arrays.asList(options)); |
| } |
| |
| // TODO: TEMPORARY, while Options still used for command line options |
| void update(Options optionTable) { |
| for (Option o: options) { |
| String v = optionTable.get(o); |
| if (v != null) { |
| handleOption(o, v); |
| } |
| } |
| } |
| |
| /** @see JavaFileManager#handleOption */ |
| abstract boolean handleOption(Option option, String value); |
| /** @see StandardJavaFileManager#getLocation */ |
| abstract Collection<File> getLocation(); |
| /** @see StandardJavaFileManager#setLocation */ |
| abstract void setLocation(Iterable<? extends File> files) throws IOException; |
| } |
| |
| /** |
| * General purpose implementation for output locations, |
| * such as -d/CLASS_OUTPUT and -s/SOURCE_OUTPUT. |
| * All options are treated as equivalent (i.e. aliases.) |
| * The value is a single file, possibly null. |
| */ |
| private class OutputLocationHandler extends LocationHandler { |
| private File outputDir; |
| |
| OutputLocationHandler(Location location, Option... options) { |
| super(location, options); |
| } |
| |
| @Override |
| boolean handleOption(Option option, String value) { |
| if (!options.contains(option)) |
| return false; |
| |
| // TODO: could/should validate outputDir exists and is a directory |
| // need to decide how best to report issue for benefit of |
| // direct API call on JavaFileManager.handleOption(specifies IAE) |
| // vs. command line decoding. |
| outputDir = new File(value); |
| return true; |
| } |
| |
| @Override |
| Collection<File> getLocation() { |
| return (outputDir == null) ? null : Collections.singleton(outputDir); |
| } |
| |
| @Override |
| void setLocation(Iterable<? extends File> files) throws IOException { |
| if (files == null) { |
| outputDir = null; |
| } else { |
| Iterator<? extends File> pathIter = files.iterator(); |
| if (!pathIter.hasNext()) |
| throw new IllegalArgumentException("empty path for directory"); |
| File dir = pathIter.next(); |
| if (pathIter.hasNext()) |
| throw new IllegalArgumentException("path too long for directory"); |
| if (!dir.exists()) |
| throw new FileNotFoundException(dir + ": does not exist"); |
| else if (!dir.isDirectory()) |
| throw new IOException(dir + ": not a directory"); |
| outputDir = dir; |
| } |
| } |
| } |
| |
| /** |
| * General purpose implementation for search path locations, |
| * such as -sourcepath/SOURCE_PATH and -processorPath/ANNOTATION_PROCESS_PATH. |
| * All options are treated as equivalent (i.e. aliases.) |
| * The value is an ordered set of files and/or directories. |
| */ |
| private class SimpleLocationHandler extends LocationHandler { |
| protected Collection<File> searchPath; |
| |
| SimpleLocationHandler(Location location, Option... options) { |
| super(location, options); |
| } |
| |
| @Override |
| boolean handleOption(Option option, String value) { |
| if (!options.contains(option)) |
| return false; |
| searchPath = value == null ? null : |
| Collections.unmodifiableCollection(createPath().addFiles(value)); |
| return true; |
| } |
| |
| @Override |
| Collection<File> getLocation() { |
| return searchPath; |
| } |
| |
| @Override |
| void setLocation(Iterable<? extends File> files) { |
| Path p; |
| if (files == null) { |
| p = computePath(null); |
| } else { |
| p = createPath().addFiles(files); |
| } |
| searchPath = Collections.unmodifiableCollection(p); |
| } |
| |
| protected Path computePath(String value) { |
| return createPath().addFiles(value); |
| } |
| |
| protected Path createPath() { |
| return new Path(); |
| } |
| } |
| |
| /** |
| * Subtype of SimpleLocationHandler for -classpath/CLASS_PATH. |
| * If no value is given, a default is provided, based on system properties |
| * and other values. |
| */ |
| private class ClassPathLocationHandler extends SimpleLocationHandler { |
| ClassPathLocationHandler() { |
| super(StandardLocation.CLASS_PATH, |
| Option.CLASSPATH, Option.CP); |
| } |
| |
| @Override |
| Collection<File> getLocation() { |
| lazy(); |
| return searchPath; |
| } |
| |
| @Override |
| protected Path computePath(String value) { |
| String cp = value; |
| |
| // CLASSPATH environment variable when run from `javac'. |
| if (cp == null) cp = System.getProperty("env.class.path"); |
| |
| // If invoked via a java VM (not the javac launcher), use the |
| // platform class path |
| if (cp == null && System.getProperty("application.home") == null) |
| cp = System.getProperty("java.class.path"); |
| |
| // Default to current working directory. |
| if (cp == null) cp = "."; |
| |
| return createPath().addFiles(cp); |
| } |
| |
| @Override |
| protected Path createPath() { |
| return new Path() |
| .expandJarClassPaths(true) // Only search user jars for Class-Paths |
| .emptyPathDefault(new File(".")); // Empty path elt ==> current directory |
| } |
| |
| private void lazy() { |
| if (searchPath == null) |
| setLocation(null); |
| } |
| } |
| |
| /** |
| * Custom subtype of LocationHandler for PLATFORM_CLASS_PATH. |
| * Various options are supported for different components of the |
| * platform class path. |
| * Setting a value with setLocation overrides all existing option values. |
| * Setting any option overrides any value set with setLocation, and reverts |
| * to using default values for options that have not been set. |
| * Setting -bootclasspath or -Xbootclasspath overrides any existing |
| * value for -Xbootclasspath/p: and -Xbootclasspath/a:. |
| */ |
| private class BootClassPathLocationHandler extends LocationHandler { |
| private Collection<File> searchPath; |
| final Map<Option, String> optionValues = new EnumMap<Option,String>(Option.class); |
| |
| /** |
| * rt.jar as found on the default bootclasspath. |
| * If the user specified a bootclasspath, null is used. |
| */ |
| private File defaultBootClassPathRtJar = null; |
| |
| /** |
| * Is bootclasspath the default? |
| */ |
| private boolean isDefaultBootClassPath; |
| |
| BootClassPathLocationHandler() { |
| super(StandardLocation.PLATFORM_CLASS_PATH, |
| Option.BOOTCLASSPATH, Option.XBOOTCLASSPATH, |
| Option.XBOOTCLASSPATH_PREPEND, |
| Option.XBOOTCLASSPATH_APPEND, |
| Option.ENDORSEDDIRS, Option.DJAVA_ENDORSED_DIRS, |
| Option.EXTDIRS, Option.DJAVA_EXT_DIRS); |
| } |
| |
| boolean isDefault() { |
| lazy(); |
| return isDefaultBootClassPath; |
| } |
| |
| boolean isDefaultRtJar(File file) { |
| lazy(); |
| return file.equals(defaultBootClassPathRtJar); |
| } |
| |
| @Override |
| boolean handleOption(Option option, String value) { |
| if (!options.contains(option)) |
| return false; |
| |
| option = canonicalize(option); |
| optionValues.put(option, value); |
| if (option == BOOTCLASSPATH) { |
| optionValues.remove(XBOOTCLASSPATH_PREPEND); |
| optionValues.remove(XBOOTCLASSPATH_APPEND); |
| } |
| searchPath = null; // reset to "uninitialized" |
| return true; |
| } |
| // where |
| // TODO: would be better if option aliasing was handled at a higher |
| // level |
| private Option canonicalize(Option option) { |
| switch (option) { |
| case XBOOTCLASSPATH: |
| return Option.BOOTCLASSPATH; |
| case DJAVA_ENDORSED_DIRS: |
| return Option.ENDORSEDDIRS; |
| case DJAVA_EXT_DIRS: |
| return Option.EXTDIRS; |
| default: |
| return option; |
| } |
| } |
| |
| @Override |
| Collection<File> getLocation() { |
| lazy(); |
| return searchPath; |
| } |
| |
| @Override |
| void setLocation(Iterable<? extends File> files) { |
| if (files == null) { |
| searchPath = null; // reset to "uninitialized" |
| } else { |
| defaultBootClassPathRtJar = null; |
| isDefaultBootClassPath = false; |
| Path p = new Path().addFiles(files, false); |
| searchPath = Collections.unmodifiableCollection(p); |
| optionValues.clear(); |
| } |
| } |
| |
| Path computePath() { |
| defaultBootClassPathRtJar = null; |
| Path path = new Path(); |
| |
| String bootclasspathOpt = optionValues.get(BOOTCLASSPATH); |
| String endorseddirsOpt = optionValues.get(ENDORSEDDIRS); |
| String extdirsOpt = optionValues.get(EXTDIRS); |
| String xbootclasspathPrependOpt = optionValues.get(XBOOTCLASSPATH_PREPEND); |
| String xbootclasspathAppendOpt = optionValues.get(XBOOTCLASSPATH_APPEND); |
| path.addFiles(xbootclasspathPrependOpt); |
| |
| if (endorseddirsOpt != null) |
| path.addDirectories(endorseddirsOpt); |
| else |
| path.addDirectories(System.getProperty("java.endorsed.dirs"), false); |
| |
| if (bootclasspathOpt != null) { |
| path.addFiles(bootclasspathOpt); |
| } else { |
| // Standard system classes for this compiler's release. |
| String files = System.getProperty("sun.boot.class.path"); |
| path.addFiles(files, false); |
| File rt_jar = new File("rt.jar"); |
| for (File file : getPathEntries(files)) { |
| if (new File(file.getName()).equals(rt_jar)) |
| defaultBootClassPathRtJar = file; |
| } |
| } |
| |
| path.addFiles(xbootclasspathAppendOpt); |
| |
| // Strictly speaking, standard extensions are not bootstrap |
| // classes, but we treat them identically, so we'll pretend |
| // that they are. |
| if (extdirsOpt != null) |
| path.addDirectories(extdirsOpt); |
| else |
| path.addDirectories(System.getProperty("java.ext.dirs"), false); |
| |
| isDefaultBootClassPath = |
| (xbootclasspathPrependOpt == null) && |
| (bootclasspathOpt == null) && |
| (xbootclasspathAppendOpt == null); |
| |
| return path; |
| } |
| |
| private void lazy() { |
| if (searchPath == null) |
| searchPath = Collections.unmodifiableCollection(computePath()); |
| } |
| } |
| |
| Map<Location, LocationHandler> handlersForLocation; |
| Map<Option, LocationHandler> handlersForOption; |
| |
| void initHandlers() { |
| handlersForLocation = new HashMap<Location, LocationHandler>(); |
| handlersForOption = new EnumMap<Option, LocationHandler>(Option.class); |
| |
| LocationHandler[] handlers = { |
| new BootClassPathLocationHandler(), |
| new ClassPathLocationHandler(), |
| new SimpleLocationHandler(StandardLocation.SOURCE_PATH, Option.SOURCEPATH), |
| new SimpleLocationHandler(StandardLocation.ANNOTATION_PROCESSOR_PATH, Option.PROCESSORPATH), |
| new OutputLocationHandler((StandardLocation.CLASS_OUTPUT), Option.D), |
| new OutputLocationHandler((StandardLocation.SOURCE_OUTPUT), Option.S), |
| new OutputLocationHandler((StandardLocation.NATIVE_HEADER_OUTPUT), Option.H) |
| }; |
| |
| for (LocationHandler h: handlers) { |
| handlersForLocation.put(h.location, h); |
| for (Option o: h.options) |
| handlersForOption.put(o, h); |
| } |
| } |
| |
| boolean handleOption(Option option, String value) { |
| LocationHandler h = handlersForOption.get(option); |
| return (h == null ? false : h.handleOption(option, value)); |
| } |
| |
| Collection<File> getLocation(Location location) { |
| LocationHandler h = getHandler(location); |
| return (h == null ? null : h.getLocation()); |
| } |
| |
| File getOutputLocation(Location location) { |
| if (!location.isOutputLocation()) |
| throw new IllegalArgumentException(); |
| LocationHandler h = getHandler(location); |
| return ((OutputLocationHandler) h).outputDir; |
| } |
| |
| void setLocation(Location location, Iterable<? extends File> files) throws IOException { |
| LocationHandler h = getHandler(location); |
| if (h == null) { |
| if (location.isOutputLocation()) |
| h = new OutputLocationHandler(location); |
| else |
| h = new SimpleLocationHandler(location); |
| handlersForLocation.put(location, h); |
| } |
| h.setLocation(files); |
| } |
| |
| protected LocationHandler getHandler(Location location) { |
| location.getClass(); // null check |
| lazy(); |
| return handlersForLocation.get(location); |
| } |
| |
| // TOGO |
| protected void lazy() { |
| if (!inited) { |
| warn = lint.isEnabled(Lint.LintCategory.PATH); |
| |
| for (LocationHandler h: handlersForLocation.values()) { |
| h.update(options); |
| } |
| |
| inited = true; |
| } |
| } |
| |
| /** Is this the name of an archive file? */ |
| private boolean isArchive(File file) { |
| String n = StringUtils.toLowerCase(file.getName()); |
| return fsInfo.isFile(file) |
| && (n.endsWith(".jar") || n.endsWith(".zip")); |
| } |
| |
| /** |
| * Utility method for converting a search path string to an array |
| * of directory and JAR file URLs. |
| * |
| * Note that this method is called by apt and the DocletInvoker. |
| * |
| * @param path the search path string |
| * @return the resulting array of directory and JAR file URLs |
| */ |
| public static URL[] pathToURLs(String path) { |
| StringTokenizer st = new StringTokenizer(path, File.pathSeparator); |
| URL[] urls = new URL[st.countTokens()]; |
| int count = 0; |
| while (st.hasMoreTokens()) { |
| URL url = fileToURL(new File(st.nextToken())); |
| if (url != null) { |
| urls[count++] = url; |
| } |
| } |
| urls = Arrays.copyOf(urls, count); |
| return urls; |
| } |
| |
| /** |
| * Returns the directory or JAR file URL corresponding to the specified |
| * local file name. |
| * |
| * @param file the File object |
| * @return the resulting directory or JAR file URL, or null if unknown |
| */ |
| private static URL fileToURL(File file) { |
| String name; |
| try { |
| name = file.getCanonicalPath(); |
| } catch (IOException e) { |
| name = file.getAbsolutePath(); |
| } |
| name = name.replace(File.separatorChar, '/'); |
| if (!name.startsWith("/")) { |
| name = "/" + name; |
| } |
| // If the file does not exist, then assume that it's a directory |
| if (!file.isFile()) { |
| name = name + "/"; |
| } |
| try { |
| return new URL("file", "", name); |
| } catch (MalformedURLException e) { |
| throw new IllegalArgumentException(file.toString()); |
| } |
| } |
| } |
