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

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

src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/UUEncoderStream.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.
  */
 /*
  * @(#)UUEncoderStream.java   1.3 02/03/27
  */
 package com.sun.xml.internal.messaging.saaj.packaging.mime.util;
 import java.io.*;
 /**
  * This class implements a UUEncoder. 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 UUEncoderStream extends FilterOutputStream {
     private byte[] buffer;      // cache of bytes that are yet to be encoded
     private int bufsize = 0;    // size of the cache
     private boolean wrotePrefix = false;
     protected String name;      // name of file
     protected int mode;         // permissions mode
     /**
      * Create a UUencoder that encodes the specified input stream
      * @param out        the output stream
      */
     public UUEncoderStream(OutputStream out) {
         this(out, "encoder.buf", 644);
     }
     /**
      * Create a UUencoder that encodes the specified input stream
      * @param out        the output stream
      * @param name       Specifies a name for the encoded buffer
      */
     public UUEncoderStream(OutputStream out, String name) {
         this(out, name, 644);
     }
     /**
      * Create a UUencoder that encodes the specified input stream
      * @param out        the output stream
      * @param name       Specifies a name for the encoded buffer
      * @param mode       Specifies permission mode for the encoded buffer
      */
     public UUEncoderStream(OutputStream out, String name, int mode) {
         super(out);
         this.name = name;
         this.mode = mode;
         buffer = new byte[45];
     }
     /**
      * Set up the buffer name and permission mode.
      * This method has any effect only if it is invoked before
      * you start writing into the output stream
      */
     public void setNameMode(String name, int mode) {
         this.name = name;
         this.mode = mode;
     }
     public void write(byte[] b, int off, int len) throws IOException {
         for (int i = 0; i < len; i++)
             write(b[off + i]);
     }
     public void write(byte[] data) throws IOException {
         write(data, 0, data.length);
     }
     public void write(int c) throws IOException {
         /* buffer up characters till we get a line's worth, then encode
          * and write them out. Max number of characters allowed per
          * line is 45.
          */
         buffer[bufsize++] = (byte)c;
         if (bufsize == 45) {
             writePrefix();
             encode();
             bufsize = 0;
         }
     }
     public void flush() throws IOException {
         if (bufsize > 0) { // If there's unencoded characters in the buffer
             writePrefix();
             encode();      // .. encode them
         }
         writeSuffix();
         out.flush();
     }
     public void close() throws IOException {
         flush();
         out.close();
     }
     /**
      * Write out the prefix: "begin <mode> <name>"
      */
     private void writePrefix() throws IOException {
         if (!wrotePrefix) {
             PrintStream ps = new PrintStream(out);
             ps.println("begin " + mode + " " + name);
             ps.flush();
             wrotePrefix = true;
         }
     }
     /**
      * Write a single line containing space and the suffix line
      * containing the single word "end" (terminated by a newline)
      */
     private void writeSuffix() throws IOException {
         PrintStream ps = new PrintStream(out);
         ps.println(" \nend");
         ps.flush();
     }
     /**
      * Encode a line.
      * Start off with the character count, followed by the encoded atoms
      * and terminate with LF. (or is it CRLF or the local line-terminator ?)
      * Take three bytes and encodes them into 4 characters
      * If bufsize if not a multiple of 3, the remaining bytes are filled
      * with '1'. This insures that the last line won't end in spaces
      * and potentiallly be truncated.
      */
     private void encode() throws IOException {
         byte a, b, c;
         int c1, c2, c3, c4;
         int i = 0;
         // Start off with the count of characters in the line
         out.write((bufsize & 0x3f) + ' ');
         while (i < bufsize) {
             a = buffer[i++];
             if (i < bufsize) {
                 b = buffer[i++];
                 if (i < bufsize)
                     c = buffer[i++];
                 else // default c to 1
                     c = 1;
             }
             else { // default b & c to 1
                 b = 1;
                 c = 1;
             }
             c1 = (a >>> 2) & 0x3f;
             c2 = ((a << 4) & 0x30) | ((b >>> 4) & 0xf);
             c3 = ((b << 2) & 0x3c) | ((c >>> 6) & 0x3);
             c4 = c & 0x3f;
             out.write(c1 + ' ');
             out.write(c2 + ' ');
             out.write(c3 + ' ');
             out.write(c4 + ' ');
         }
         // Terminate with LF. (should it be CRLF or local line-terminator ?)
         out.write('\n');
     }
     /**** begin TEST program *****
     public static void main(String argv[]) throws Exception {
         FileInputStream infile = new FileInputStream(argv[0]);
         UUEncoderStream encoder = new UUEncoderStream(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/UUEncoderStream.java@9c07ef4934dd (annotated)

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