jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPEncoderStream.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPEncoderStream.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPEncoderStream.java

Thu, 31 Aug 2017 15:18:52 +0800

author: aoqi
date: Thu, 31 Aug 2017 15:18:52 +0800
changeset 637: 9c07ef4934dd
parent 368: 0989ad8c0860
parent 0: 373ffda63c9a
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 1997, 2012, 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.
  */
 /*
  * @(#)QPEncoderStream.java   1.6 02/03/27
  */
 package com.sun.xml.internal.messaging.saaj.packaging.mime.util;
 import java.io.*;
 /**
  * This class implements a Quoted Printable Encoder. It is implemented as
  * a FilterOutputStream, so one can just wrap this class around
  * any output stream and write bytes into this filter. The Encoding
  * is done as the bytes are written out.
  *
  * @author John Mani
  */
 public class QPEncoderStream extends FilterOutputStream {
     private int count = 0;      // number of bytes that have been output
     private int bytesPerLine;   // number of bytes per line
     private boolean gotSpace = false;
     private boolean gotCR = false;
     /**
      * Create a QP encoder that encodes the specified input stream
      * @param out        the output stream
      * @param bytesPerLine  the number of bytes per line. The encoder
      *                   inserts a CRLF sequence after this many number
      *                   of bytes.
      */
     public QPEncoderStream(OutputStream out, int bytesPerLine) {
         super(out);
         // Subtract 1 to account for the '=' in the soft-return
         // at the end of a line
         this.bytesPerLine = bytesPerLine - 1;
     }
     /**
      * Create a QP encoder that encodes the specified input stream.
      * Inserts the CRLF sequence after outputting 76 bytes.
      * @param out        the output stream
      */
     public QPEncoderStream(OutputStream out) {
         this(out, 76);
     }
     /**
      * Encodes <code>len</code> bytes from the specified
      * <code>byte</code> array starting at offset <code>off</code> to
      * this output stream.
      *
      * @param      b     the data.
      * @param      off   the start offset in the data.
      * @param      len   the number of bytes to write.
      * @exception  IOException  if an I/O error occurs.
      */
     public void write(byte[] b, int off, int len) throws IOException {
         for (int i = 0; i < len; i++)
             write(b[off + i]);
     }
     /**
      * Encodes <code>b.length</code> bytes to this output stream.
      * @param      b   the data to be written.
      * @exception  IOException  if an I/O error occurs.
      */
     public void write(byte[] b) throws IOException {
         write(b, 0, b.length);
     }
     /**
      * Encodes the specified <code>byte</code> to this output stream.
      * @param      c   the <code>byte</code>.
      * @exception  IOException  if an I/O error occurs.
      */
     public void write(int c) throws IOException {
         c = c & 0xff; // Turn off the MSB.
         if (gotSpace) { // previous character was <SPACE>
             if (c == '\r' || c == '\n')
                 // if CR/LF, we need to encode the <SPACE> char
                 output(' ', true);
             else // no encoding required, just output the char
                 output(' ', false);
             gotSpace = false;
         }
         if (c == '\r') {
             gotCR = true;
             outputCRLF();
         } else {
             if (c == '\n') {
                 if (gotCR)
                     // This is a CRLF sequence, we already output the
                     // corresponding CRLF when we got the CR, so ignore this
                     ;
                 else
                     outputCRLF();
             } else if (c == ' ') {
                 gotSpace = true;
             } else if (c < 040 || c >= 0177 || c == '=')
                 // Encoding required.
                 output(c, true);
             else // No encoding required
                 output(c, false);
             // whatever it was, it wasn't a CR
             gotCR = false;
         }
     }
     /**
      * Flushes this output stream and forces any buffered output bytes
      * to be encoded out to the stream.
      * @exception  IOException  if an I/O error occurs.
      */
     public void flush() throws IOException {
         out.flush();
     }
     /**
      * Forces any buffered output bytes to be encoded out to the stream
      * and closes this output stream
      */
     public void close() throws IOException {
         out.close();
     }
     private void outputCRLF() throws IOException {
         out.write('\r');
         out.write('\n');
         count = 0;
     }
     // The encoding table
     private final static char hex[] = {
         '0','1', '2', '3', '4', '5', '6', '7',
         '8','9', 'A', 'B', 'C', 'D', 'E', 'F'
     };
     protected void output(int c, boolean encode) throws IOException {
         if (encode) {
             if ((count += 3) > bytesPerLine) {
                 out.write('=');
                 out.write('\r');
                 out.write('\n');
                 count = 3; // set the next line's length
             }
             out.write('=');
             out.write(hex[c >> 4]);
             out.write(hex[c & 0xf]);
         } else {
             if (++count > bytesPerLine) {
                 out.write('=');
                 out.write('\r');
                 out.write('\n');
                 count = 1; // set the next line's length
             }
             out.write(c);
         }
     }
     /**** begin TEST program ***
     public static void main(String argv[]) throws Exception {
         FileInputStream infile = new FileInputStream(argv[0]);
         QPEncoderStream encoder = new QPEncoderStream(System.out);
         int c;
         while ((c = infile.read()) != -1)
             encoder.write(c);
         encoder.close();
     }
     *** end TEST program ***/
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPEncoderStream.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPEncoderStream.java