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authorAndrew Haley <aph@redhat.com>2016-09-30 16:24:48 +0000
committerAndrew Haley <aph@gcc.gnu.org>2016-09-30 16:24:48 +0000
commit07b78716af6a9d7c9fd1e94d9baf94a52c873947 (patch)
tree3f22b3241c513ad168c8353805614ae1249410f4 /libjava/java/io/OutputStreamWriter.java
parenteae993948bae8b788c53772bcb9217c063716f93 (diff)
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Makefile.def: Remove libjava.
2016-09-30 Andrew Haley <aph@redhat.com> * Makefile.def: Remove libjava. * Makefile.tpl: Likewise. * Makefile.in: Regenerate. * configure.ac: Likewise. * configure: Likewise. * gcc/java: Remove. * libjava: Likewise. From-SVN: r240662
Diffstat (limited to 'libjava/java/io/OutputStreamWriter.java')
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diff --git a/libjava/java/io/OutputStreamWriter.java b/libjava/java/io/OutputStreamWriter.java
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-/* OutputStreamWriter.java -- Writer that converts chars to bytes
- Copyright (C) 1998, 1999, 2000, 2001, 2003, 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 gnu.gcj.convert.UnicodeToBytes;
-import gnu.gcj.convert.CharsetToBytesAdaptor;
-import java.nio.charset.Charset;
-import java.nio.charset.CharsetEncoder;
-
-/**
- * This class writes characters to an output stream that is byte oriented
- * It converts the chars that are written to bytes using an encoding layer,
- * which is specific to a particular encoding standard. The desired
- * encoding can either be specified by name, or if no encoding is specified,
- * the system default encoding will be used. The system default encoding
- * name is determined from the system property <code>file.encoding</code>.
- * The only encodings that are guaranteed to be available are "8859_1"
- * (the Latin-1 character set) and "UTF8". Unfortunately, Java does not
- * provide a mechanism for listing the encodings that are supported in
- * a given implementation.
- * <p>
- * Here is a list of standard encoding names that may be available:
- * <p>
- * <ul>
- * <li>8859_1 (ISO-8859-1/Latin-1)
- * <li>8859_2 (ISO-8859-2/Latin-2)
- * <li>8859_3 (ISO-8859-3/Latin-3)
- * <li>8859_4 (ISO-8859-4/Latin-4)
- * <li>8859_5 (ISO-8859-5/Latin-5)
- * <li>8859_6 (ISO-8859-6/Latin-6)
- * <li>8859_7 (ISO-8859-7/Latin-7)
- * <li>8859_8 (ISO-8859-8/Latin-8)
- * <li>8859_9 (ISO-8859-9/Latin-9)
- * <li>ASCII (7-bit ASCII)
- * <li>UTF8 (UCS Transformation Format-8)
- * <li>More Later
- * </ul>
- *
- * @author Aaron M. Renn (arenn@urbanophile.com)
- * @author Per Bothner (bothner@cygnus.com)
- * @date April 17, 1998.
- */
-public class OutputStreamWriter extends Writer
-{
- BufferedOutputStream out;
-
- /**
- * This is the byte-character encoder class that does the writing and
- * translation of characters to bytes before writing to the underlying
- * class.
- */
- UnicodeToBytes converter;
-
- /* Temporary buffer. */
- private char[] work;
- private int wcount;
-
- private OutputStreamWriter(OutputStream out, UnicodeToBytes encoder)
- {
- this.out = out instanceof BufferedOutputStream
- ? (BufferedOutputStream) out
- : new BufferedOutputStream(out, 250);
- /* Don't need to call super(out) here as long as the lock gets set. */
- this.lock = out;
- this.converter = encoder;
- }
-
- /**
- * This method initializes a new instance of <code>OutputStreamWriter</code>
- * to write to the specified stream using a caller supplied character
- * encoding scheme. Note that due to a deficiency in the Java language
- * design, there is no way to determine which encodings are supported.
- *
- * @param out The <code>OutputStream</code> to write to
- * @param encoding_scheme The name of the encoding scheme to use for
- * character to byte translation
- *
- * @exception UnsupportedEncodingException If the named encoding is
- * not available.
- */
- public OutputStreamWriter (OutputStream out, String encoding_scheme)
- throws UnsupportedEncodingException
- {
- this(out, UnicodeToBytes.getEncoder(encoding_scheme));
- }
-
- /**
- * This method initializes a new instance of <code>OutputStreamWriter</code>
- * to write to the specified stream using the default encoding.
- *
- * @param out The <code>OutputStream</code> to write to
- */
- public OutputStreamWriter (OutputStream out)
- {
- this(out, UnicodeToBytes.getDefaultEncoder());
- }
-
- /**
- * This method initializes a new instance of <code>OutputStreamWriter</code>
- * to write to the specified stream using a given <code>Charset</code>.
- *
- * @param out The <code>OutputStream</code> to write to
- * @param cs The <code>Charset</code> of the encoding to use
- */
- public OutputStreamWriter(OutputStream out, Charset cs)
- {
- this(out, new CharsetToBytesAdaptor(cs));
- }
-
- /**
- * This method initializes a new instance of <code>OutputStreamWriter</code>
- * to write to the specified stream using a given
- * <code>CharsetEncoder</code>.
- *
- * @param out The <code>OutputStream</code> to write to
- * @param enc The <code>CharsetEncoder</code> to encode the output with
- */
- public OutputStreamWriter(OutputStream out, CharsetEncoder enc)
- {
- this(out, new CharsetToBytesAdaptor(enc));
- }
-
- /**
- * This method closes this stream, and the underlying
- * <code>OutputStream</code>
- *
- * @exception IOException If an error occurs
- */
- public void close () throws IOException
- {
- synchronized (lock)
- {
- if (out != null)
- {
- converter.setFinished();
- flush();
- out.close();
- out = null;
- }
- work = null;
- }
- }
-
- /**
- * This method returns the name of the character encoding scheme currently
- * in use by this stream. If the stream has been closed, then this method
- * may return <code>null</code>.
- *
- * @return The encoding scheme name
- */
- public String getEncoding ()
- {
- return out != null ? converter.getName() : null;
- }
-
- /**
- * This method flushes any buffered bytes to the underlying output sink.
- *
- * @exception IOException If an error occurs
- */
- public void flush () throws IOException
- {
- synchronized (lock)
- {
- if (out == null)
- throw new IOException("Stream closed");
-
- // Always write -- if we are close()ing then we want to make
- // sure the converter is flushed.
- if (work == null)
- work = new char[100];
- writeChars(work, 0, wcount);
- wcount = 0;
-
- out.flush();
- }
- }
-
- /**
- * This method writes <code>count</code> characters from the specified
- * array to the output stream starting at position <code>offset</code>
- * into the array.
- *
- * @param buf The array of character to write from
- * @param offset The offset into the array to start writing chars from
- * @param count The number of chars to write.
- *
- * @exception IOException If an error occurs
- */
- public void write (char[] buf, int offset, int count) throws IOException
- {
- synchronized (lock)
- {
- if (out == null)
- throw new IOException("Stream closed");
-
- if (wcount > 0)
- {
- writeChars(work, 0, wcount);
- wcount = 0;
- }
- writeChars(buf, offset, count);
- }
- }
-
- /*
- * Writes characters through to the inferior BufferedOutputStream.
- * Ignores wcount and the work buffer.
- */
- private void writeChars(char[] buf, int offset, int count)
- throws IOException
- {
- do
- {
- // We must flush if out.count == out.buf.length.
- // It is probably a good idea to flush if out.buf is almost full.
- // This test is an approximation for "almost full".
- if (out.count + count >= out.buf.length)
- {
- out.flush();
- if (out.count != 0)
- throw new IOException("unable to flush output byte buffer");
- }
- converter.setOutput(out.buf, out.count);
- int converted = converter.write(buf, offset, count);
- // Must set this before we flush the output stream, because
- // flushing will reset 'out.count'.
- out.count = converter.count;
- // Flush if we cannot make progress.
- if (converted == 0 && out.count == converter.count)
- {
- out.flush();
- if (out.count != 0)
- throw new IOException("unable to flush output byte buffer");
- }
- offset += converted;
- count -= converted;
- }
- while (count > 0 || converter.havePendingBytes());
- }
-
- /**
- * This method writes <code>count</code> bytes from the specified
- * <code>String</code> starting at position <code>offset</code> into the
- * <code>String</code>.
- *
- * @param str The <code>String</code> to write chars from
- * @param offset The position in the <code>String</code> to start
- * writing chars from
- * @param count The number of chars to write
- *
- * @exception IOException If an error occurs
- */
- public void write (String str, int offset, int count) throws IOException
- {
- synchronized (lock)
- {
- if (out == null)
- throw new IOException("Stream closed");
-
- if (work == null)
- work = new char[100];
- int wlength = work.length;
- while (count > 0)
- {
- int size = count;
- if (wcount + size > wlength)
- {
- if (2*wcount > wlength)
- {
- writeChars(work, 0, wcount);
- wcount = 0;
- }
- if (wcount + size > wlength)
- size = wlength - wcount;
- }
- str.getChars(offset, offset+size, work, wcount);
- offset += size;
- count -= size;
- wcount += size;
- }
- }
- }
-
- /**
- * This method writes a single character to the output stream.
- *
- * @param ch The char to write, passed as an int.
- *
- * @exception IOException If an error occurs
- */
- public void write (int ch) throws IOException
- {
- synchronized (lock)
- {
- if (out == null)
- throw new IOException("Stream closed");
-
- if (work == null)
- work = new char[100];
- if (wcount >= work.length)
- {
- writeChars(work, 0, wcount);
- wcount = 0;
- }
- work[wcount++] = (char) ch;
- }
- }
-
-} // class OutputStreamWriter
-