null.
* @param destFile Name of file to copy to.
* Must not be null.
*
* @throws IOException if the copying fails.
*/
public void copyFile(String sourceFile, String destFile) throws IOException {
copyFile(new File(sourceFile), new File(destFile), null, false, false);
}
/**
* Convenience method to copy a file from a source to a destination
* specifying if token filtering must be used.
*
* @param sourceFile Name of file to copy from.
* Must not be null.
* @param destFile Name of file to copy to.
* Must not be null.
* @param filters the collection of filters to apply to this copy.
*
* @throws IOException if the copying fails.
*/
public void copyFile(String sourceFile, String destFile, FilterSetCollection filters)
throws IOException {
copyFile(new File(sourceFile), new File(destFile), filters, false, false);
}
/**
* Convenience method to copy a file from a source to a destination specifying if token
* filtering must be used and if source files may overwrite newer destination files.
*
* @param sourceFile Name of file to copy from. Must not be null.
* @param destFile Name of file to copy to. Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param overwrite Whether or not the destination file should be overwritten if it already
* exists.
*
* @throws IOException if the copying fails.
*/
public void copyFile(String sourceFile, String destFile, FilterSetCollection filters,
boolean overwrite) throws IOException {
copyFile(new File(sourceFile), new File(destFile), filters, overwrite, false);
}
/**
* Convenience method to copy a file from a source to a destination
* specifying if token
* filtering must be used, if source files may overwrite newer destination
* files and the last
* modified time of destFile file should be made equal to
* the last modified time
* of sourceFile.
*
* @param sourceFile Name of file to copy from. Must not be null.
* @param destFile Name of file to copy to. Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
* @param preserveLastModified Whether or not the last modified time of
* the resulting file
* should be set to that of the source file.
*
* @throws IOException if the copying fails.
*/
public void copyFile(String sourceFile, String destFile,
FilterSetCollection filters,
boolean overwrite, boolean preserveLastModified)
throws IOException {
copyFile(new File(sourceFile), new File(destFile), filters, overwrite,
preserveLastModified);
}
/**
* Convenience method to copy a file from a source to a destination specifying if token
* filtering must be used, if source files may overwrite newer destination files and the last
* modified time of destFile file should be made equal to the last modified time
* of sourceFile.
*
* @param sourceFile Name of file to copy from. Must not be null.
* @param destFile Name of file to copy to. Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param overwrite Whether or not the destination file should be overwritten if it already
* exists.
* @param preserveLastModified Whether or not the last modified time of the resulting file
* should be set to that of the source file.
* @param encoding the encoding used to read and write the files.
*
* @throws IOException if the copying fails.
*
* @since Ant 1.5
*/
public void copyFile(String sourceFile, String destFile,
FilterSetCollection filters, boolean overwrite,
boolean preserveLastModified, String encoding) throws IOException {
copyFile(new File(sourceFile), new File(destFile), filters,
overwrite, preserveLastModified, encoding);
}
// CheckStyle:ParameterNumberCheck OFF - bc
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering must be used, if
* filter chains must be used, if source files may overwrite
* newer destination files and the last modified time of
* destFile file should be made equal
* to the last modified time of sourceFile.
*
* @param sourceFile Name of file to copy from.
* Must not be null.
* @param destFile Name of file to copy to.
* Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param filterChains filterChains to apply during the copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
* @param preserveLastModified Whether or not the last modified time of
* the resulting file should be set to that
* of the source file.
* @param encoding the encoding used to read and write the files.
* @param project the project instance.
*
* @throws IOException if the copying fails.
*
* @since Ant 1.5
*/
public void copyFile(String sourceFile, String destFile,
FilterSetCollection filters, Vector filterChains,
boolean overwrite, boolean preserveLastModified,
String encoding, Project project) throws IOException {
copyFile(new File(sourceFile), new File(destFile), filters, filterChains, overwrite,
preserveLastModified, encoding, project);
}
/**
* Convenience method to copy a file from a source to a destination specifying if token
* filtering must be used, if filter chains must be used, if source files may overwrite newer
* destination files and the last modified time of destFile file should be made
* equal to the last modified time of sourceFile.
*
* @param sourceFile Name of file to copy from. Must not be null.
* @param destFile Name of file to copy to. Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param filterChains filterChains to apply during the copy.
* @param overwrite Whether or not the destination file should be overwritten if it already
* exists.
* @param preserveLastModified Whether or not the last modified time of the resulting file
* should be set to that of the source file.
* @param inputEncoding the encoding used to read the files.
* @param outputEncoding the encoding used to write the files.
* @param project the project instance.
*
* @throws IOException if the copying fails.
*
* @since Ant 1.6
*/
public void copyFile(String sourceFile, String destFile,
FilterSetCollection filters, Vector filterChains,
boolean overwrite, boolean preserveLastModified,
String inputEncoding, String outputEncoding,
Project project) throws IOException {
copyFile(new File(sourceFile), new File(destFile), filters, filterChains, overwrite,
preserveLastModified, inputEncoding, outputEncoding, project);
}
/**
* Convenience method to copy a file from a source to a destination. No filtering is performed.
*
* @param sourceFile the file to copy from. Must not be null.
* @param destFile the file to copy to. Must not be null.
*
* @throws IOException if the copying fails.
*/
public void copyFile(File sourceFile, File destFile) throws IOException {
copyFile(sourceFile, destFile, null, false, false);
}
/**
* Convenience method to copy a file from a source to a destination
* specifying if token filtering must be used.
*
* @param sourceFile the file to copy from.
* Must not be null.
* @param destFile the file to copy to.
* Must not be null.
* @param filters the collection of filters to apply to this copy.
*
* @throws IOException if the copying fails.
*/
public void copyFile(File sourceFile, File destFile, FilterSetCollection filters)
throws IOException {
copyFile(sourceFile, destFile, filters, false, false);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering must be used and if
* source files may overwrite newer destination files.
*
* @param sourceFile the file to copy from.
* Must not be null.
* @param destFile the file to copy to.
* Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
*
* @throws IOException if the copying fails.
*/
public void copyFile(File sourceFile, File destFile, FilterSetCollection filters,
boolean overwrite) throws IOException {
copyFile(sourceFile, destFile, filters, overwrite, false);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering must be used, if
* source files may overwrite newer destination files and the
* last modified time of destFile file should be made equal
* to the last modified time of sourceFile.
*
* @param sourceFile the file to copy from.
* Must not be null.
* @param destFile the file to copy to.
* Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
* @param preserveLastModified Whether or not the last modified time of
* the resulting file should be set to that
* of the source file.
*
* @throws IOException if the copying fails.
*/
public void copyFile(File sourceFile, File destFile, FilterSetCollection filters,
boolean overwrite, boolean preserveLastModified) throws IOException {
copyFile(sourceFile, destFile, filters, overwrite, preserveLastModified, null);
}
/**
* Convenience method to copy a file from a source to a destination specifying if token
* filtering must be used, if source files may overwrite newer destination files, the last
* modified time of destFile file should be made equal to the last modified time
* of sourceFile and which character encoding to assume.
*
* @param sourceFile the file to copy from. Must not be null.
* @param destFile the file to copy to. Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param overwrite Whether or not the destination file should be overwritten if it already
* exists.
* @param preserveLastModified Whether or not the last modified time of the resulting file
* should be set to that of the source file.
* @param encoding the encoding used to read and write the files.
*
* @throws IOException if the copying fails.
*
* @since Ant 1.5
*/
public void copyFile(File sourceFile, File destFile,
FilterSetCollection filters, boolean overwrite,
boolean preserveLastModified, String encoding) throws IOException {
copyFile(sourceFile, destFile, filters, null, overwrite,
preserveLastModified, encoding, null);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering must be used, if
* filter chains must be used, if source files may overwrite
* newer destination files and the last modified time of
* destFile file should be made equal
* to the last modified time of sourceFile.
*
* @param sourceFile the file to copy from.
* Must not be null.
* @param destFile the file to copy to.
* Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param filterChains filterChains to apply during the copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
* @param preserveLastModified Whether or not the last modified time of
* the resulting file should be set to that
* of the source file.
* @param encoding the encoding used to read and write the files.
* @param project the project instance.
*
* @throws IOException if the copying fails.
*
* @since Ant 1.5
*/
public void copyFile(File sourceFile, File destFile,
FilterSetCollection filters, Vector filterChains,
boolean overwrite, boolean preserveLastModified,
String encoding, Project project) throws IOException {
copyFile(sourceFile, destFile, filters, filterChains,
overwrite, preserveLastModified, encoding, encoding, project);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering must be used, if
* filter chains must be used, if source files may overwrite
* newer destination files and the last modified time of
* destFile file should be made equal
* to the last modified time of sourceFile.
*
* @param sourceFile the file to copy from.
* Must not be null.
* @param destFile the file to copy to.
* Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param filterChains filterChains to apply during the copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
* @param preserveLastModified Whether or not the last modified time of
* the resulting file should be set to that
* of the source file.
* @param inputEncoding the encoding used to read the files.
* @param outputEncoding the encoding used to write the files.
* @param project the project instance.
*
*
* @throws IOException if the copying fails.
*
* @since Ant 1.6
*/
public void copyFile(File sourceFile, File destFile,
FilterSetCollection filters, Vector filterChains,
boolean overwrite, boolean preserveLastModified,
String inputEncoding, String outputEncoding,
Project project) throws IOException {
copyFile(sourceFile, destFile, filters, filterChains, overwrite, preserveLastModified,
false, inputEncoding, outputEncoding, project);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering must be used, if
* filter chains must be used, if source files may overwrite
* newer destination files and the last modified time of
* destFile file should be made equal
* to the last modified time of sourceFile.
*
* @param sourceFile the file to copy from.
* Must not be null.
* @param destFile the file to copy to.
* Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param filterChains filterChains to apply during the copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
* @param preserveLastModified Whether or not the last modified time of
* the resulting file should be set to that
* of the source file.
* @param append whether to append to the destination file.
* @param inputEncoding the encoding used to read the files.
* @param outputEncoding the encoding used to write the files.
* @param project the project instance.
*
*
* @throws IOException if the copying fails.
*
* @since Ant 1.8
*/
public void copyFile(File sourceFile, File destFile,
FilterSetCollection filters, Vector filterChains,
boolean overwrite, boolean preserveLastModified,
boolean append,
String inputEncoding, String outputEncoding,
Project project) throws IOException {
copyFile(sourceFile, destFile, filters, filterChains, overwrite,
preserveLastModified, append, inputEncoding, outputEncoding,
project, /* force: */ false);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering must be used, if
* filter chains must be used, if source files may overwrite
* newer destination files and the last modified time of
* destFile file should be made equal
* to the last modified time of sourceFile.
*
* @param sourceFile the file to copy from.
* Must not be null.
* @param destFile the file to copy to.
* Must not be null.
* @param filters the collection of filters to apply to this copy.
* @param filterChains filterChains to apply during the copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
* @param preserveLastModified Whether or not the last modified time of
* the resulting file should be set to that
* of the source file.
* @param append whether to append to the destination file.
* @param inputEncoding the encoding used to read the files.
* @param outputEncoding the encoding used to write the files.
* @param project the project instance.
* @param force whether to overwrite read-only destination files.
*
* @throws IOException if the copying fails.
*
* @since Ant 1.8.2
*/
public void copyFile(File sourceFile, File destFile,
FilterSetCollection filters, Vector filterChains,
boolean overwrite, boolean preserveLastModified,
boolean append,
String inputEncoding, String outputEncoding,
Project project, boolean force) throws IOException {
ResourceUtils.copyResource(new FileResource(sourceFile),
new FileResource(destFile),
filters, filterChains, overwrite,
preserveLastModified, append, inputEncoding,
outputEncoding, project, force);
}
// CheckStyle:ParameterNumberCheck ON
/**
* Calls File.setLastModified(long time). Originally written to
* to dynamically bind to that call on Java1.2+.
*
* @param file the file whose modified time is to be set
* @param time the time to which the last modified time is to be set.
* if this is -1, the current time is used.
*/
public void setFileLastModified(File file, long time) {
ResourceUtils.setLastModified(new FileResource(file), time);
}
/**
* Interpret the filename as a file relative to the given file
* unless the filename already represents an absolute filename.
* Differs from new File(file, filename) in that
* the resulting File's path will always be a normalized,
* absolute pathname. Also, if it is determined that
* filename is context-relative, file
* will be discarded and the reference will be resolved using
* available context/state information about the filesystem.
*
* @param file the "reference" file for relative paths. This
* instance must be an absolute file and must not contain
* "./" or "../" sequences (same for \ instead
* of /). If it is null, this call is equivalent to
* new java.io.File(filename).getAbsoluteFile().
*
* @param filename a file name.
*
* @return an absolute file.
* @throws java.lang.NullPointerException if filename is null.
*/
public File resolveFile(File file, String filename) {
if (!isAbsolutePath(filename)) {
char sep = File.separatorChar;
filename = filename.replace('/', sep).replace('\\', sep);
if (isContextRelativePath(filename)) {
file = null;
// on cygwin, our current directory can be a UNC;
// assume user.dir is absolute or all hell breaks loose...
String udir = System.getProperty("user.dir");
if (filename.charAt(0) == sep && udir.charAt(0) == sep) {
filename = dissect(udir)[0] + filename.substring(1);
}
}
filename = new File(file, filename).getAbsolutePath();
}
return normalize(filename);
}
/**
* On DOS and NetWare, the evaluation of certain file
* specifications is context-dependent. These are filenames
* beginning with a single separator (relative to current root directory)
* and filenames with a drive specification and no intervening separator
* (relative to current directory of the specified root).
* @param filename the filename to evaluate.
* @return true if the filename is relative to system context.
* @throws java.lang.NullPointerException if filename is null.
* @since Ant 1.7
*/
public static boolean isContextRelativePath(String filename) {
if (!(ON_DOS || ON_NETWARE) || filename.length() == 0) {
return false;
}
char sep = File.separatorChar;
filename = filename.replace('/', sep).replace('\\', sep);
char c = filename.charAt(0);
int len = filename.length();
return (c == sep && (len == 1 || filename.charAt(1) != sep))
|| (Character.isLetter(c) && len > 1
&& filename.indexOf(':') == 1
&& (len == 2 || filename.charAt(2) != sep));
}
/**
* Verifies that the specified filename represents an absolute path.
* Differs from new java.io.File("filename").isAbsolute() in that a path
* beginning with a double file separator--signifying a Windows UNC--must
* at minimum match "\\a\b" to be considered an absolute path.
* @param filename the filename to be checked.
* @return true if the filename represents an absolute path.
* @throws java.lang.NullPointerException if filename is null.
* @since Ant 1.6.3
*/
public static boolean isAbsolutePath(String filename) {
int len = filename.length();
if (len == 0) {
return false;
}
char sep = File.separatorChar;
filename = filename.replace('/', sep).replace('\\', sep);
char c = filename.charAt(0);
if (!(ON_DOS || ON_NETWARE)) {
return (c == sep);
}
if (c == sep) {
// CheckStyle:MagicNumber OFF
if (!(ON_DOS && len > 4 && filename.charAt(1) == sep)) {
return false;
}
// CheckStyle:MagicNumber ON
int nextsep = filename.indexOf(sep, 2);
return nextsep > 2 && nextsep + 1 < len;
}
int colon = filename.indexOf(':');
return (Character.isLetter(c) && colon == 1
&& filename.length() > 2 && filename.charAt(2) == sep)
|| (ON_NETWARE && colon > 0);
}
/**
* Translate a path into its native (platform specific) format.
*
* This method uses PathTokenizer to separate the input path
* into its components. This handles DOS style paths in a relatively
* sensible way. The file separators are then converted to their platform
* specific versions.
*
* @param toProcess The path to be translated.
* May be null.
*
* @return the native version of the specified path or
* an empty string if the path is null or empty.
*
* @since ant 1.7
* @see PathTokenizer
*/
public static String translatePath(String toProcess) {
if (toProcess == null || toProcess.length() == 0) {
return "";
}
StringBuffer path = new StringBuffer(toProcess.length() + EXPAND_SPACE);
PathTokenizer tokenizer = new PathTokenizer(toProcess);
while (tokenizer.hasMoreTokens()) {
String pathComponent = tokenizer.nextToken();
pathComponent = pathComponent.replace('/', File.separatorChar);
pathComponent = pathComponent.replace('\\', File.separatorChar);
if (path.length() != 0) {
path.append(File.pathSeparatorChar);
}
path.append(pathComponent);
}
return path.toString();
}
/**
* "Normalize" the given absolute path.
*
*
This includes: *
File object.
* This is useful since the JVM by default internally converts VMS paths
* to Unix style.
* The returned String is always an absolute path.
*
* @param f The File to get the VMS path for.
* @return The absolute VMS path to f.
*/
public String toVMSPath(File f) {
// format: "DEVICE:[DIR.SUBDIR]FILE"
String osPath;
String path = normalize(f.getAbsolutePath()).getPath();
String name = f.getName();
boolean isAbsolute = path.charAt(0) == File.separatorChar;
// treat directories specified using .DIR syntax as files
// CheckStyle:MagicNumber OFF
boolean isDirectory = f.isDirectory()
&& !name.regionMatches(true, name.length() - 4, ".DIR", 0, 4);
// CheckStyle:MagicNumber ON
String device = null;
StringBuffer directory = null;
String file = null;
int index = 0;
if (isAbsolute) {
index = path.indexOf(File.separatorChar, 1);
if (index == -1) {
return path.substring(1) + ":[000000]";
}
device = path.substring(1, index++);
}
if (isDirectory) {
directory = new StringBuffer(path.substring(index).replace(File.separatorChar, '.'));
} else {
int dirEnd = path.lastIndexOf(File.separatorChar, path.length());
if (dirEnd == -1 || dirEnd < index) {
file = path.substring(index);
} else {
directory = new StringBuffer(path.substring(index, dirEnd).
replace(File.separatorChar, '.'));
index = dirEnd + 1;
if (path.length() > index) {
file = path.substring(index);
}
}
}
if (!isAbsolute && directory != null) {
directory.insert(0, '.');
}
osPath = ((device != null) ? device + ":" : "")
+ ((directory != null) ? "[" + directory + "]" : "")
+ ((file != null) ? file : "");
return osPath;
}
/**
* Create a File object for a temporary file in a given directory. Without
* actually creating the file.
*
* * The file denoted by the returned abstract pathname did not exist before * this method was invoked, any subsequent invocation of this method will * yield a different file name. *
** The filename is prefixNNNNNsuffix where NNNN is a random number. *
* * @param prefix * prefix before the random number. * @param suffix * file extension; include the '.'. * @param parentDir * Directory to create the temporary file in; java.io.tmpdir used * if not specified. * * @deprecated since ant 1.7.1 use createTempFile(String, String, File, * boolean, boolean) instead. * @return a File reference to the new, nonexistent temporary file. */ public File createTempFile(String prefix, String suffix, File parentDir) { return createTempFile(prefix, suffix, parentDir, false, false); } /** * Create a temporary file in a given directory. * *The file denoted by the returned abstract pathname did not * exist before this method was invoked, any subsequent invocation * of this method will yield a different file name.
* * @param prefix prefix before the random number. * @param suffix file extension; include the '.'. * @param parentDir Directory to create the temporary file in; * java.io.tmpdir used if not specified. * @param deleteOnExit whether to set the tempfile for deletion on * normal VM exit. * @param createFile true if the file must actually be created. If false * chances exist that a file with the same name is created in the time * between invoking this method and the moment the file is actually created. * If possible set to true. * * @return a File reference to the new temporary file. * @since Ant 1.7.1 */ public File createTempFile(String prefix, String suffix, File parentDir, boolean deleteOnExit, boolean createFile) { File result = null; String parent = (parentDir == null) ? System.getProperty("java.io.tmpdir") : parentDir.getPath(); if (createFile) { try { result = File.createTempFile(prefix, suffix, new File(parent)); } catch (IOException e) { throw new BuildException("Could not create tempfile in " + parent, e); } } else { DecimalFormat fmt = new DecimalFormat("#####"); synchronized (rand) { do { result = new File(parent, prefix + fmt.format(rand.nextInt(Integer.MAX_VALUE)) + suffix); } while (result.exists()); } } if (deleteOnExit) { result.deleteOnExit(); } return result; } /** * Create a File object for a temporary file in a given directory. Without * actually creating the file. * ** The file denoted by the returned abstract pathname did not exist before * this method was invoked, any subsequent invocation of this method will * yield a different file name. *
** The filename is prefixNNNNNsuffix where NNNN is a random number. *
* * @param prefix * prefix before the random number. * @param suffix * file extension; include the '.'. * @param parentDir * Directory to create the temporary file in; java.io.tmpdir used * if not specified. * @param deleteOnExit * whether to set the tempfile for deletion on normal VM exit. * * @deprecated since ant 1.7.1 use createTempFile(String, String, File, * boolean, boolean) instead. * @return a File reference to the new, nonexistent temporary file. */ public File createTempFile(String prefix, String suffix, File parentDir, boolean deleteOnExit) { return createTempFile(prefix, suffix, parentDir, deleteOnExit, false); } /** * Compares the contents of two files. * * @param f1 the file whose content is to be compared. * @param f2 the other file whose content is to be compared. * * @return true if the content of the files is the same. * * @throws IOException if the files cannot be read. */ public boolean contentEquals(File f1, File f2) throws IOException { return contentEquals(f1, f2, false); } /** * Compares the contents of two files. * * @param f1 the file whose content is to be compared. * @param f2 the other file whose content is to be compared. * @param textfile true if the file is to be treated as a text file and * differences in kind of line break are to be ignored. * * @return true if the content of the files is the same. * * @throws IOException if the files cannot be read. * @since Ant 1.6.3 */ public boolean contentEquals(File f1, File f2, boolean textfile) throws IOException { return ResourceUtils.contentEquals(new FileResource(f1), new FileResource(f2), textfile); } /** * This was originally an emulation of {@link File#getParentFile} for JDK 1.1, but it is now * implemented using that method (Ant 1.6.3 onwards). * * @param f the file whose parent is required. * @return the given file's parent, or null if the file does not have a parent. * @since 1.10 * @deprecated since 1.7. Just use {@link File#getParentFile} directly. */ public File getParentFile(File f) { return (f == null) ? null : f.getParentFile(); } /** * Read from reader till EOF. * @param rdr the reader from which to read. * @return the contents read out of the given reader. * * @throws IOException if the contents could not be read out from the * reader. */ public static String readFully(Reader rdr) throws IOException { return readFully(rdr, BUF_SIZE); } /** * Read from reader till EOF. * * @param rdr the reader from which to read. * @param bufferSize the buffer size to use when reading. * * @return the contents read out of the given reader. * * @throws IOException if the contents could not be read out from the * reader. */ public static String readFully(Reader rdr, int bufferSize) throws IOException { if (bufferSize <= 0) { throw new IllegalArgumentException("Buffer size must be greater " + "than 0"); } final char[] buffer = new char[bufferSize]; int bufferLength = 0; StringBuffer textBuffer = null; while (bufferLength != -1) { bufferLength = rdr.read(buffer); if (bufferLength > 0) { textBuffer = (textBuffer == null) ? new StringBuffer() : textBuffer; textBuffer.append(new String(buffer, 0, bufferLength)); } } return (textBuffer == null) ? null : textBuffer.toString(); } /** * Safe read fully - do not return a null for an empty reader. * @param reader the input to read from. * @return the string. * @throws IOException if unable to read from reader. * @since Ant 1.7.1 */ public static String safeReadFully(Reader reader) throws IOException { String ret = readFully(reader); return ret == null ? "" : ret; } /** * This was originally an emulation of File.createNewFile for JDK 1.1, * but it is now implemented using that method (Ant 1.6.3 onwards). * *This method has historically not guaranteed that the
* operation was atomic. In its current implementation it is.
*
* @param f the file to be created.
* @return true if the file did not exist already.
* @throws IOException on error.
* @since Ant 1.5
*/
public boolean createNewFile(File f) throws IOException {
return f.createNewFile();
}
/**
* Create a new file, optionally creating parent directories.
*
* @param f the file to be created.
* @param mkdirs boolean whether to create parent directories.
* @return true if the file did not exist already.
* @throws IOException on error.
* @since Ant 1.6.3
*/
public boolean createNewFile(File f, boolean mkdirs) throws IOException {
File parent = f.getParentFile();
if (mkdirs && !(parent.exists())) {
parent.mkdirs();
}
return f.createNewFile();
}
/**
* Checks whether a given file is a symbolic link.
*
*
It doesn't really test for symbolic links but whether the * canonical and absolute paths of the file are identical--this * may lead to false positives on some platforms.
* * @param parent the parent directory of the file to test * @param name the name of the file to test. * * @return true if the file is a symbolic link. * @throws IOException on error. * @since Ant 1.5 * @deprecated use SymbolicLinkUtils instead */ public boolean isSymbolicLink(File parent, String name) throws IOException { SymbolicLinkUtils u = SymbolicLinkUtils.getSymbolicLinkUtils(); if (parent == null) { return u.isSymbolicLink(name); } return u.isSymbolicLink(parent, name); } /** * Removes a leading path from a second path. * * @param leading The leading path, must not be null, must be absolute. * @param path The path to remove from, must not be null, must be absolute. * * @return path's normalized absolute if it doesn't start with * leading; path's path with leading's path removed otherwise. * * @since Ant 1.5 */ public String removeLeadingPath(File leading, File path) { String l = normalize(leading.getAbsolutePath()).getAbsolutePath(); String p = normalize(path.getAbsolutePath()).getAbsolutePath(); if (l.equals(p)) { return ""; } // ensure that l ends with a / // so we never think /foo was a parent directory of /foobar if (!l.endsWith(File.separator)) { l += File.separator; } return (p.startsWith(l)) ? p.substring(l.length()) : p; } /** * Learn whether one path "leads" another. * @param leading The leading path, must not be null, must be absolute. * @param path The path to remove from, must not be null, must be absolute. * @return true if path starts with leading; false otherwise. * @since Ant 1.7 */ public boolean isLeadingPath(File leading, File path) { String l = normalize(leading.getAbsolutePath()).getAbsolutePath(); String p = normalize(path.getAbsolutePath()).getAbsolutePath(); if (l.equals(p)) { return true; } // ensure that l ends with a / // so we never think /foo was a parent directory of /foobar if (!l.endsWith(File.separator)) { l += File.separator; } return p.startsWith(l); } /** * Constructs afile: URI that represents the
* external form of the given pathname.
*
* Will be an absolute URI if the given path is absolute.
* *This code encodes non ASCII characters too.
* *The coding of the output is the same as what File.toURI().toASCIIString() produces
* * See dt-sysid * which makes some mention of how * characters not supported by URI Reference syntax should be escaped. * * @param path the path in the local file system. * @return the URI version of the local path. * @since Ant 1.6 */ public String toURI(String path) { return new File(path).getAbsoluteFile().toURI().toASCIIString(); } /** * Constructs a file path from afile: URI.
*
* Will be an absolute path if the given URI is absolute.
* *Swallows '%' that are not followed by two characters, * doesn't deal with non-ASCII characters.
* * @param uri the URI designating a file in the local filesystem. * @return the local file system path for the file. * @since Ant 1.6 */ public String fromURI(String uri) { synchronized (cacheFromUriLock) { if (uri.equals(cacheFromUriRequest)) { return cacheFromUriResponse; } String path = Locator.fromURI(uri); String ret = isAbsolutePath(path) ? normalize(path).getAbsolutePath() : path; cacheFromUriRequest = uri; cacheFromUriResponse = ret; return ret; } } /** * Compares two filenames. * *Unlike java.io.File#equals this method will try to compare * the absolute paths and "normalize" the filenames * before comparing them.
* * @param f1 the file whose name is to be compared. * @param f2 the other file whose name is to be compared. * * @return true if the file are for the same file. * * @since Ant 1.5.3 */ public boolean fileNameEquals(File f1, File f2) { return normalize(f1.getAbsolutePath()).getAbsolutePath().equals( normalize(f2.getAbsolutePath()).getAbsolutePath()); } /** * Renames a file, even if that involves crossing file system boundaries. * *This will remove to (if it exists), ensure that
* to's parent directory exists and move
* from, which involves deleting from as
* well.
to may have been deleted
* already when this happens.
*
* @since Ant 1.6
*/
public void rename(File from, File to) throws IOException {
// identical logic lives in Move.renameFile():
from = normalize(from.getAbsolutePath()).getCanonicalFile();
to = normalize(to.getAbsolutePath());
if (!from.exists()) {
System.err.println("Cannot rename nonexistent file " + from);
return;
}
if (from.getAbsolutePath().equals(to.getAbsolutePath())) {
System.err.println("Rename of " + from + " to " + to + " is a no-op.");
return;
}
if (to.exists() &&
!(from.equals(to.getCanonicalFile()) || tryHardToDelete(to))) {
throw new IOException("Failed to delete " + to + " while trying to rename " + from);
}
File parent = to.getParentFile();
if (parent != null && !parent.exists() && !parent.mkdirs()) {
throw new IOException("Failed to create directory " + parent
+ " while trying to rename " + from);
}
if (!from.renameTo(to)) {
copyFile(from, to);
if (!tryHardToDelete(from)) {
throw new IOException("Failed to delete " + from + " while trying to rename it.");
}
}
}
/**
* Get the granularity of file timestamps. The choice is made based on OS, which is
* incorrect--it should really be by filesystem. We do not have an easy way to probe for file
* systems, however, so this heuristic gives us a decent default.
*
* @return the difference, in milliseconds, which two file timestamps must have in order for the
* two files to be considered to have different timestamps.
*/
public long getFileTimestampGranularity() {
if (ON_WIN9X) {
return FAT_FILE_TIMESTAMP_GRANULARITY;
}
if (ON_WINDOWS) {
return NTFS_FILE_TIMESTAMP_GRANULARITY;
}
if (ON_DOS) {
return FAT_FILE_TIMESTAMP_GRANULARITY;
}
return UNIX_FILE_TIMESTAMP_GRANULARITY;
}
/**
* test whether a file or directory exists, with an error in the
* upper/lower case spelling of the name.
* Using this method is only interesting on case insensitive file systems
* (Windows).
* Implementation note:
This function may throw an IOException if an I/O error occurs
* because its use of the canonical pathname may require filesystem queries.
*
File to calculate the path from
* @param toFile the File to calculate the path to
* @return the relative path between the files
* @throws Exception for undocumented reasons
* @see File#getCanonicalPath()
*
* @since Ant 1.7
*/
public static String getRelativePath(File fromFile, File toFile) throws Exception {
String fromPath = fromFile.getCanonicalPath();
String toPath = toFile.getCanonicalPath();
// build the path stack info to compare
String[] fromPathStack = getPathStack(fromPath);
String[] toPathStack = getPathStack(toPath);
if (0 < toPathStack.length && 0 < fromPathStack.length) {
if (!fromPathStack[0].equals(toPathStack[0])) {
// not the same device (would be "" on Linux/Unix)
return getPath(Arrays.asList(toPathStack));
}
} else {
// no comparison possible
return getPath(Arrays.asList(toPathStack));
}
int minLength = Math.min(fromPathStack.length, toPathStack.length);
int same = 1; // Used outside the for loop
// get index of parts which are equal
for (;
same < minLength && fromPathStack[same].equals(toPathStack[same]);
same++) {
// Do nothing
}
List relativePathStack = new ArrayList();
// if "from" part is longer, fill it up with ".."
// to reach path which is equal to both paths
for (int i = same; i < fromPathStack.length; i++) {
relativePathStack.add("..");
}
// fill it up path with parts which were not equal
for (int i = same; i < toPathStack.length; i++) {
relativePathStack.add(toPathStack[i]);
}
return getPath(relativePathStack);
}
/**
* Gets all names of the path as an array of Strings.
*
* @param path to get names from
* @return Strings, never null
*
* @since Ant 1.7
*/
public static String[] getPathStack(String path) {
String normalizedPath = path.replace(File.separatorChar, '/');
return normalizedPath.split("/");
}
/**
* Gets path from a List of Strings.
*
* @param pathStack List of Strings to be concatenated as a path.
* @return String, never null
*
* @since Ant 1.7
*/
public static String getPath(List pathStack) {
// can safely use '/' because Windows understands '/' as separator
return getPath(pathStack, '/');
}
/**
* Gets path from a List of Strings.
*
* @param pathStack List of Strings to be concated as a path.
* @param separatorChar char to be used as separator between names in path
* @return String, never null
*
* @since Ant 1.7
*/
public static String getPath(final List pathStack, final char separatorChar) {
final StringBuffer buffer = new StringBuffer();
final Iterator iter = pathStack.iterator();
if (iter.hasNext()) {
buffer.append(iter.next());
}
while (iter.hasNext()) {
buffer.append(separatorChar);
buffer.append(iter.next());
}
return buffer.toString();
}
/**
* Get the default encoding.
* This is done by opening an InputStreamReader on
* a dummy InputStream and getting the encoding.
* Could use System.getProperty("file.encoding"), but cannot
* see where this is documented.
* @return the default file encoding.
*/
public String getDefaultEncoding() {
InputStreamReader is = new InputStreamReader(
new InputStream() {
public int read() {
return -1;
}
});
try {
return is.getEncoding();
} finally {
close(is);
}
}
}