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Diffstat (limited to 'libjava/java/io/PrintStream.java')
| -rw-r--r-- | libjava/java/io/PrintStream.java | 684 |
1 files changed, 0 insertions, 684 deletions
diff --git a/libjava/java/io/PrintStream.java b/libjava/java/io/PrintStream.java deleted file mode 100644 index be28619..0000000 --- a/libjava/java/io/PrintStream.java +++ /dev/null @@ -1,684 +0,0 @@ -/* PrintStream.java -- OutputStream for printing output - Copyright (C) 1998, 1999, 2001, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath 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 for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package java.io; - -import java.util.Formatter; -import java.util.Locale; - -import gnu.gcj.convert.UnicodeToBytes; - -/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3 - * "The Java Language Specification", ISBN 0-201-63451-1 - * Status: Believed complete and correct to 1.3 - */ - -/** - * This class prints Java primitive values and object to a stream as - * text. None of the methods in this class throw an exception. However, - * errors can be detected by calling the <code>checkError()</code> method. - * Additionally, this stream can be designated as "autoflush" when - * created so that any writes are automatically flushed to the underlying - * output sink when the current line is terminated. - * <p> - * This class converts char's into byte's using the system default encoding. - * - * @author Aaron M. Renn (arenn@urbanophile.com) - * @author Tom Tromey (tromey@cygnus.com) - */ -public class PrintStream extends FilterOutputStream implements Appendable -{ - /* Notice the implementation is quite similar to OutputStreamWriter. - * This leads to some minor duplication, because neither inherits - * from the other, and we want to maximize performance. */ - - // Line separator string. - private static final char[] line_separator - = System.getProperty("line.separator").toCharArray(); - - UnicodeToBytes converter; - - // Work buffer of characters for converter. - char[] work = new char[100]; - // Work buffer of bytes where we temporarily keep converter output. - byte[] work_bytes = new byte[100]; - - /** - * This boolean indicates whether or not an error has ever occurred - * on this stream. - */ - private boolean error_occurred = false; - - /** - * This is <code>true</code> if auto-flush is enabled, - * <code>false</code> otherwise - */ - private boolean auto_flush; - - /** - * This method intializes a new <code>PrintStream</code> object to write - * to the specified output sink. - * - * @param out The <code>OutputStream</code> to write to. - */ - public PrintStream (OutputStream out) - { - this (out, false); - } - - /** - * This method intializes a new <code>PrintStream</code> object to write - * to the specified output sink. This constructor also allows "auto-flush" - * functionality to be specified where the stream will be flushed after - * every <code>print</code> or <code>println</code> call, when the - * <code>write</code> methods with array arguments are called, or when a - * single new-line character is written. - * <p> - * - * @param out The <code>OutputStream</code> to write to. - * @param auto_flush <code>true</code> to flush the stream after every - * line, <code>false</code> otherwise - */ - public PrintStream (OutputStream out, boolean auto_flush) - { - super (out); - - converter = UnicodeToBytes.getDefaultEncoder(); - this.auto_flush = auto_flush; - } - - /** - * This method initializes a new <code>PrintStream</code> object to write - * to the specified output File. Doesn't autoflush. - * - * @param file The <code>File</code> to write to. - * @throws FileNotFoundException if an error occurs while opening the file. - * - * @since 1.5 - */ - public PrintStream (File file) - throws FileNotFoundException - { - this (new FileOutputStream(file), false); - } - - /** - * This method initializes a new <code>PrintStream</code> object to write - * to the specified output File. Doesn't autoflush. - * - * @param file The <code>File</code> to write to. - * @param encoding The name of the character encoding to use for this - * object. - * @throws FileNotFoundException If an error occurs while opening the file. - * @throws UnsupportedEncodingException If the charset specified by - * <code>encoding</code> is invalid. - * - * @since 1.5 - */ - public PrintStream (File file, String encoding) - throws FileNotFoundException,UnsupportedEncodingException - { - this (new FileOutputStream(file), false, encoding); - } - - /** - * This method initializes a new <code>PrintStream</code> object to write - * to the specified output File. Doesn't autoflush. - * - * @param fileName The name of the <code>File</code> to write to. - * @throws FileNotFoundException if an error occurs while opening the file, - * - * @since 1.5 - */ - public PrintStream (String fileName) - throws FileNotFoundException - { - this (new FileOutputStream(new File(fileName)), false); - } - - /** - * This method initializes a new <code>PrintStream</code> object to write - * to the specified output File. Doesn't autoflush. - * - * @param fileName The name of the <code>File</code> to write to. - * @param encoding The name of the character encoding to use for this - * object. - * @throws FileNotFoundException if an error occurs while opening the file. - * @throws UnsupportedEncodingException If the charset specified by - * <code>encoding</code> is invalid. - * - * @since 1.5 - */ - public PrintStream (String fileName, String encoding) - throws FileNotFoundException,UnsupportedEncodingException - { - this (new FileOutputStream(new File(fileName)), false, encoding); - } - - /** - * This method intializes a new <code>PrintStream</code> object to write - * to the specified output sink. This constructor also allows "auto-flush" - * functionality to be specified where the stream will be flushed after - * every <code>print</code> or <code>println</code> call, when the - * <code>write</code> methods with array arguments are called, or when a - * single new-line character is written. - * <p> - * - * @param out The <code>OutputStream</code> to write to. - * @param auto_flush <code>true</code> to flush the stream after every - * line, <code>false</code> otherwise - * @param encoding The name of the character encoding to use for this - * object. - */ - public PrintStream (OutputStream out, boolean auto_flush, String encoding) - throws UnsupportedEncodingException - { - super (out); - - converter = UnicodeToBytes.getEncoder (encoding); - this.auto_flush = auto_flush; - } - - /** - * This method checks to see if an error has occurred on this stream. Note - * that once an error has occurred, this method will continue to report - * <code>true</code> forever for this stream. Before checking for an - * error condition, this method flushes the stream. - * - * @return <code>true</code> if an error has occurred, - * <code>false</code> otherwise - */ - public boolean checkError () - { - flush (); - return error_occurred; - } - - /** - * This method can be called by subclasses to indicate that an error - * has occurred and should be reported by <code>checkError</code>. - */ - protected void setError () - { - error_occurred = true; - } - - /** - * This method closes this stream and all underlying streams. - */ - public void close () - { - try - { - converter.setFinished(); - writeChars(new char[0], 0, 0); - flush(); - out.close(); - } - catch (InterruptedIOException iioe) - { - Thread.currentThread().interrupt(); - } - catch (IOException e) - { - setError (); - } - } - - /** - * This method flushes any buffered bytes to the underlying stream and - * then flushes that stream as well. - */ - public void flush () - { - try - { - out.flush(); - } - catch (InterruptedIOException iioe) - { - Thread.currentThread().interrupt(); - } - catch (IOException e) - { - setError (); - } - } - - private synchronized void print (String str, boolean println) - { - try - { - writeChars(str, 0, str.length()); - if (println) - writeChars(line_separator, 0, line_separator.length); - if (auto_flush) - flush(); - } - catch (InterruptedIOException iioe) - { - Thread.currentThread().interrupt(); - } - catch (IOException e) - { - setError (); - } - } - - private synchronized void print (char[] chars, int pos, int len, - boolean println) - { - try - { - writeChars(chars, pos, len); - if (println) - writeChars(line_separator, 0, line_separator.length); - if (auto_flush) - flush(); - } - catch (InterruptedIOException iioe) - { - Thread.currentThread().interrupt(); - } - catch (IOException e) - { - setError (); - } - } - - private void writeChars(char[] buf, int offset, int count) - throws IOException - { - do - { - converter.setOutput(work_bytes, 0); - int converted = converter.write(buf, offset, count); - offset += converted; - count -= converted; - out.write(work_bytes, 0, converter.count); - } - while (count > 0 || converter.havePendingBytes()); - } - - private void writeChars(String str, int offset, int count) - throws IOException - { - do - { - converter.setOutput(work_bytes, 0); - int converted = converter.write(str, offset, count, work); - offset += converted; - count -= converted; - out.write(work_bytes, 0, converter.count); - } - while (count > 0 || converter.havePendingBytes()); - } - - /** - * This methods prints a boolean value to the stream. <code>true</code> - * values are printed as "true" and <code>false</code> values are printed - * as "false". - * - * @param bool The <code>boolean</code> value to print - */ - public void print (boolean bool) - { - print(String.valueOf(bool), false); - } - - /** - * This method prints an integer to the stream. The value printed is - * determined using the <code>String.valueOf()</code> method. - * - * @param inum The <code>int</code> value to be printed - */ - public void print (int inum) - { - print(String.valueOf(inum), false); - } - - /** - * This method prints a long to the stream. The value printed is - * determined using the <code>String.valueOf()</code> method. - * - * @param lnum The <code>long</code> value to be printed - */ - public void print (long lnum) - { - print(String.valueOf(lnum), false); - } - - /** - * This method prints a float to the stream. The value printed is - * determined using the <code>String.valueOf()</code> method. - * - * @param fnum The <code>float</code> value to be printed - */ - public void print (float fnum) - { - print(String.valueOf(fnum), false); - } - - /** - * This method prints a double to the stream. The value printed is - * determined using the <code>String.valueOf()</code> method. - * - * @param dnum The <code>double</code> value to be printed - */ - public void print (double dnum) - { - print(String.valueOf(dnum), false); - } - - /** - * This method prints an <code>Object</code> to the stream. The actual - * value printed is determined by calling the <code>String.valueOf()</code> - * method. - * - * @param obj The <code>Object</code> to print. - */ - public void print (Object obj) - { - print(obj == null ? "null" : obj.toString(), false); - } - - /** - * This method prints a <code>String</code> to the stream. The actual - * value printed depends on the system default encoding. - * - * @param str The <code>String</code> to print. - */ - public void print (String str) - { - print(str == null ? "null" : str, false); - } - - /** - * This method prints a char to the stream. The actual value printed is - * determined by the character encoding in use. - * - * @param ch The <code>char</code> value to be printed - */ - public synchronized void print (char ch) - { - work[0] = ch; - print(work, 0, 1, false); - } - - /** - * This method prints an array of characters to the stream. The actual - * value printed depends on the system default encoding. - * - * @param charArray The array of characters to print. - */ - public void print (char[] charArray) - { - print(charArray, 0, charArray.length, false); - } - - /** - * This method prints a line separator sequence to the stream. The value - * printed is determined by the system property <xmp>line.separator</xmp> - * and is not necessarily the Unix '\n' newline character. - */ - public void println () - { - print(line_separator, 0, line_separator.length, false); - } - - /** - * This methods prints a boolean value to the stream. <code>true</code> - * values are printed as "true" and <code>false</code> values are printed - * as "false". - * <p> - * This method prints a line termination sequence after printing the value. - * - * @param bool The <code>boolean</code> value to print - */ - public void println (boolean bool) - { - print(String.valueOf(bool), true); - } - - /** - * This method prints an integer to the stream. The value printed is - * determined using the <code>String.valueOf()</code> method. - * <p> - * This method prints a line termination sequence after printing the value. - * - * @param inum The <code>int</code> value to be printed - */ - public void println (int inum) - { - print(String.valueOf(inum), true); - } - - /** - * This method prints a long to the stream. The value printed is - * determined using the <code>String.valueOf()</code> method. - * <p> - * This method prints a line termination sequence after printing the value. - * - * @param lnum The <code>long</code> value to be printed - */ - public void println (long lnum) - { - print(String.valueOf(lnum), true); - } - - /** - * This method prints a float to the stream. The value printed is - * determined using the <code>String.valueOf()</code> method. - * <p> - * This method prints a line termination sequence after printing the value. - * - * @param fnum The <code>float</code> value to be printed - */ - public void println (float fnum) - { - print(String.valueOf(fnum), true); - } - - /** - * This method prints a double to the stream. The value printed is - * determined using the <code>String.valueOf()</code> method. - * <p> - * This method prints a line termination sequence after printing the value. - * - * @param dnum The <code>double</code> value to be printed - */ - public void println (double dnum) - { - print(String.valueOf(dnum), true); - } - - /** - * This method prints an <code>Object</code> to the stream. The actual - * value printed is determined by calling the <code>String.valueOf()</code> - * method. - * <p> - * This method prints a line termination sequence after printing the value. - * - * @param obj The <code>Object</code> to print. - */ - public void println (Object obj) - { - print(obj == null ? "null" : obj.toString(), true); - } - - /** - * This method prints a <code>String</code> to the stream. The actual - * value printed depends on the system default encoding. - * <p> - * This method prints a line termination sequence after printing the value. - * - * @param str The <code>String</code> to print. - */ - public void println (String str) - { - print (str == null ? "null" : str, true); - } - - /** - * This method prints a char to the stream. The actual value printed is - * determined by the character encoding in use. - * <p> - * This method prints a line termination sequence after printing the value. - * - * @param ch The <code>char</code> value to be printed - */ - public synchronized void println (char ch) - { - work[0] = ch; - print(work, 0, 1, true); - } - - /** - * This method prints an array of characters to the stream. The actual - * value printed depends on the system default encoding. - * <p> - * This method prints a line termination sequence after printing the value. - * - * @param charArray The array of characters to print. - */ - public void println (char[] charArray) - { - print(charArray, 0, charArray.length, true); - } - - /** - * This method writes a byte of data to the stream. If auto-flush is - * enabled, printing a newline character will cause the stream to be - * flushed after the character is written. - * - * @param oneByte The byte to be written - */ - public void write (int oneByte) - { - try - { - out.write (oneByte & 0xff); - - if (auto_flush && (oneByte == '\n')) - flush (); - } - catch (InterruptedIOException iioe) - { - Thread.currentThread ().interrupt (); - } - catch (IOException e) - { - setError (); - } - } - - /** - * This method writes <code>len</code> bytes from the specified array - * starting at index <code>offset</code> into the array. - * - * @param buffer The array of bytes to write - * @param offset The index into the array to start writing from - * @param len The number of bytes to write - */ - public void write (byte[] buffer, int offset, int len) - { - try - { - out.write (buffer, offset, len); - - if (auto_flush) - flush (); - } - catch (InterruptedIOException iioe) - { - Thread.currentThread ().interrupt (); - } - catch (IOException e) - { - setError (); - } - } - - /** @since 1.5 */ - public PrintStream append(char c) - { - print(c); - return this; - } - - /** @since 1.5 */ - public PrintStream append(CharSequence cs) - { - print(cs == null ? "null" : cs.toString()); - return this; - } - - /** @since 1.5 */ - public PrintStream append(CharSequence cs, int start, int end) - { - print(cs == null ? "null" : cs.subSequence(start, end).toString()); - return this; - } - - /** @since 1.5 */ - public PrintStream printf(String format, Object... args) - { - return format(format, args); - } - - /** @since 1.5 */ - public PrintStream printf(Locale locale, String format, Object... args) - { - return format(locale, format, args); - } - - /** @since 1.5 */ - public PrintStream format(String format, Object... args) - { - return format(Locale.getDefault(), format, args); - } - - /** @since 1.5 */ - public PrintStream format(Locale locale, String format, Object... args) - { - Formatter f = new Formatter(this, locale); - f.format(format, args); - return this; - } -} // class PrintStream - |