diff options
Diffstat (limited to 'libjava/java/io/ByteArrayOutputStream.java')
| -rw-r--r-- | libjava/java/io/ByteArrayOutputStream.java | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/libjava/java/io/ByteArrayOutputStream.java b/libjava/java/io/ByteArrayOutputStream.java deleted file mode 100644 index e996ebbc70f..00000000000 --- a/libjava/java/io/ByteArrayOutputStream.java +++ /dev/null @@ -1,283 +0,0 @@ -/* BufferedReader.java - Copyright (C) 1998, 1999, 2000, 2001, 2003, 2005 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; - -/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3 - * "The Java Language Specification", ISBN 0-201-63451-1 - * Status: Complete to version 1.1. - */ - -/** - * This class allows data to be written to a byte array buffer and - * and then retrieved by an application. The internal byte array - * buffer is dynamically resized to hold all the data written. Please - * be aware that writing large amounts to data to this stream will - * cause large amounts of memory to be allocated. - * <p> - * The size of the internal buffer defaults to 32 and it is resized - * by doubling the size of the buffer. This default size can be - * overridden by using the - * <code>gnu.java.io.ByteArrayOutputStream.initialBufferSize</code> - * property. - * <p> - * There is a constructor that specified the initial buffer size and - * that is the preferred way to set that value because it it portable - * across all Java class library implementations. - * <p> - * Note that this class also has methods that convert the byte array - * buffer to a <code>String</code> using either the system default or an - * application specified character encoding. Thus it can handle - * multibyte character encodings. - * - * @author Aaron M. Renn (arenn@urbanophile.com) - * @author Tom Tromey (tromey@cygnus.com) - * @date September 24, 1998 - */ -public class ByteArrayOutputStream extends OutputStream -{ - /** - * This method initializes a new <code>ByteArrayOutputStream</code> - * with the default buffer size of 32 bytes. If a different initial - * buffer size is desired, see the constructor - * <code>ByteArrayOutputStream(int size)</code>. For applications - * where the source code is not available, the default buffer size - * can be set using the system property - * <code>gnu.java.io.ByteArrayOutputStream.initialBufferSize</code> - */ - public ByteArrayOutputStream () - { - this (initial_buffer_size); - } - - /** - * This method initializes a new <code>ByteArrayOutputStream</code> with - * a specified initial buffer size. - * - * @param size The initial buffer size in bytes - */ - public ByteArrayOutputStream (int size) - { - buf = new byte[size]; - count = 0; - } - - /** - * This method discards all of the bytes that have been written to - * the internal buffer so far by setting the <code>count</code> - * variable to 0. The internal buffer remains at its currently - * allocated size. - */ - public synchronized void reset () - { - count = 0; - } - - /** - * This method returns the number of bytes that have been written to - * the buffer so far. This is the same as the value of the protected - * <code>count</code> variable. If the <code>reset</code> method is - * called, then this value is reset as well. Note that this method does - * not return the length of the internal buffer, but only the number - * of bytes that have been written to it. - * - * @return The number of bytes in the internal buffer - * - * @see #reset() - */ - public int size () - { - return count; - } - - /** - * This method returns a byte array containing the bytes that have been - * written to this stream so far. This array is a copy of the valid - * bytes in the internal buffer and its length is equal to the number of - * valid bytes, not necessarily to the the length of the current - * internal buffer. Note that since this method allocates a new array, - * it should be used with caution when the internal buffer is very large. - */ - public synchronized byte[] toByteArray () - { - byte[] ret = new byte[count]; - System.arraycopy(buf, 0, ret, 0, count); - return ret; - } - - /** - * Returns the bytes in the internal array as a <code>String</code>. The - * bytes in the buffer are converted to characters using the system default - * encoding. There is an overloaded <code>toString()</code> method that - * allows an application specified character encoding to be used. - * - * @return A <code>String</code> containing the data written to this - * stream so far - */ - public String toString () - { - return new String (buf, 0, count); - } - - /** - * Returns the bytes in the internal array as a <code>String</code>. The - * bytes in the buffer are converted to characters using the specified - * encoding. - * - * @param enc The name of the character encoding to use - * - * @return A <code>String</code> containing the data written to this - * stream so far - * - * @exception UnsupportedEncodingException If the named encoding is - * not available - */ - public String toString (String enc) throws UnsupportedEncodingException - { - return new String (buf, 0, count, enc); - } - - /** - * This method returns the bytes in the internal array as a - * <code>String</code>. It uses each byte in the array as the low - * order eight bits of the Unicode character value and the passed in - * parameter as the high eight bits. - * <p> - * This method does not convert bytes to characters in the proper way and - * so is deprecated in favor of the other overloaded <code>toString</code> - * methods which use a true character encoding. - * - * @param hibyte The high eight bits to use for each character in - * the <code>String</code> - * - * @return A <code>String</code> containing the data written to this - * stream so far - * - * @deprecated - */ - public String toString (int hibyte) - { - return new String (buf, 0, count, hibyte); - } - - // Resize buffer to accommodate new bytes. - private void resize (int add) - { - if (count + add > buf.length) - { - int newlen = buf.length * 2; - if (count + add > newlen) - newlen = count + add; - byte[] newbuf = new byte[newlen]; - System.arraycopy(buf, 0, newbuf, 0, count); - buf = newbuf; - } - } - - /** - * This method writes the writes the specified byte into the internal - * buffer. - * - * @param oneByte The byte to be read passed as an int - */ - public synchronized void write (int oneByte) - { - resize (1); - buf[count++] = (byte) oneByte; - } - - /** - * This method writes <code>len</code> bytes from the passed in array - * <code>buf</code> starting at index <code>offset</code> into the - * internal buffer. - * - * @param buffer The byte array to write data from - * @param offset The index into the buffer to start writing data from - * @param add The number of bytes to write - */ - public synchronized void write (byte[] buffer, int offset, int add) - { - // If ADD < 0 then arraycopy will throw the appropriate error for - // us. - if (add >= 0) - resize (add); - System.arraycopy(buffer, offset, buf, count, add); - count += add; - } - - /** - * This method writes all the bytes that have been written to this stream - * from the internal buffer to the specified <code>OutputStream</code>. - * - * @param out The <code>OutputStream</code> to write to - * - * @exception IOException If an error occurs - */ - public synchronized void writeTo (OutputStream out) throws IOException - { - out.write(buf, 0, count); - } - - /** - * The internal buffer where the data written is stored - */ - protected byte[] buf; - - /** - * The number of bytes that have been written to the buffer - */ - protected int count; - - /** - * The default initial buffer size. Specified by the JCL. - */ - private static final int DEFAULT_INITIAL_BUFFER_SIZE = 32; - - // The default buffer size which can be overridden by the user. - private static final int initial_buffer_size; - - static - { - int r - = Integer.getInteger ("gnu.java.io.ByteArrayOutputStream.initialBufferSize", - DEFAULT_INITIAL_BUFFER_SIZE).intValue (); - if (r <= 0) - r = DEFAULT_INITIAL_BUFFER_SIZE; - initial_buffer_size = r; - } -} |