Fri, 04 Oct 2013 16:21:34 +0100
8025054: Update JAX-WS RI integration to 2.2.9-b130926.1035
Reviewed-by: chegar
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | /* FROM mail.jar */ |
aoqi@0 | 27 | package com.sun.xml.internal.org.jvnet.mimepull; |
aoqi@0 | 28 | |
aoqi@0 | 29 | import java.io.*; |
aoqi@0 | 30 | |
aoqi@0 | 31 | /** |
aoqi@0 | 32 | * This class is to support reading CRLF terminated lines that |
aoqi@0 | 33 | * contain only US-ASCII characters from an input stream. Provides |
aoqi@0 | 34 | * functionality that is similar to the deprecated |
aoqi@0 | 35 | * <code>DataInputStream.readLine()</code>. Expected use is to read |
aoqi@0 | 36 | * lines as String objects from a RFC822 stream. |
aoqi@0 | 37 | * |
aoqi@0 | 38 | * It is implemented as a FilterInputStream, so one can just wrap |
aoqi@0 | 39 | * this class around any input stream and read bytes from this filter. |
aoqi@0 | 40 | * |
aoqi@0 | 41 | * @author John Mani |
aoqi@0 | 42 | */ |
aoqi@0 | 43 | |
aoqi@0 | 44 | final class LineInputStream extends FilterInputStream { |
aoqi@0 | 45 | |
aoqi@0 | 46 | private char[] lineBuffer = null; // reusable byte buffer |
aoqi@0 | 47 | private static int MAX_INCR = 1024*1024; // 1MB |
aoqi@0 | 48 | |
aoqi@0 | 49 | public LineInputStream(InputStream in) { |
aoqi@0 | 50 | super(in); |
aoqi@0 | 51 | } |
aoqi@0 | 52 | |
aoqi@0 | 53 | /** |
aoqi@0 | 54 | * Read a line containing only ASCII characters from the input |
aoqi@0 | 55 | * stream. A line is terminated by a CR or NL or CR-NL sequence. |
aoqi@0 | 56 | * A common error is a CR-CR-NL sequence, which will also terminate |
aoqi@0 | 57 | * a line. |
aoqi@0 | 58 | * The line terminator is not returned as part of the returned |
aoqi@0 | 59 | * String. Returns null if no data is available. <p> |
aoqi@0 | 60 | * |
aoqi@0 | 61 | * This class is similar to the deprecated |
aoqi@0 | 62 | * <code>DataInputStream.readLine()</code> |
aoqi@0 | 63 | */ |
aoqi@0 | 64 | public String readLine() throws IOException { |
aoqi@0 | 65 | //InputStream in = this.in; |
aoqi@0 | 66 | char[] buf = lineBuffer; |
aoqi@0 | 67 | |
aoqi@0 | 68 | if (buf == null) { |
aoqi@0 | 69 | buf = lineBuffer = new char[128]; |
aoqi@0 | 70 | } |
aoqi@0 | 71 | |
aoqi@0 | 72 | int c1; |
aoqi@0 | 73 | int room = buf.length; |
aoqi@0 | 74 | int offset = 0; |
aoqi@0 | 75 | |
aoqi@0 | 76 | while ((c1 = in.read()) != -1) { |
aoqi@0 | 77 | if (c1 == '\n') { |
aoqi@0 | 78 | break; |
aoqi@0 | 79 | } else if (c1 == '\r') { |
aoqi@0 | 80 | // Got CR, is the next char NL ? |
aoqi@0 | 81 | boolean twoCRs = false; |
aoqi@0 | 82 | if (in.markSupported()) { |
aoqi@0 | 83 | in.mark(2); |
aoqi@0 | 84 | } |
aoqi@0 | 85 | int c2 = in.read(); |
aoqi@0 | 86 | if (c2 == '\r') { // discard extraneous CR |
aoqi@0 | 87 | twoCRs = true; |
aoqi@0 | 88 | c2 = in.read(); |
aoqi@0 | 89 | } |
aoqi@0 | 90 | if (c2 != '\n') { |
aoqi@0 | 91 | /* |
aoqi@0 | 92 | * If the stream supports it (which we hope will always |
aoqi@0 | 93 | * be the case), reset to after the first CR. Otherwise, |
aoqi@0 | 94 | * we wrap a PushbackInputStream around the stream so we |
aoqi@0 | 95 | * can unread the characters we don't need. The only |
aoqi@0 | 96 | * problem with that is that the caller might stop |
aoqi@0 | 97 | * reading from this LineInputStream, throw it away, |
aoqi@0 | 98 | * and then start reading from the underlying stream. |
aoqi@0 | 99 | * If that happens, the pushed back characters will be |
aoqi@0 | 100 | * lost forever. |
aoqi@0 | 101 | */ |
aoqi@0 | 102 | if (in.markSupported()) { |
aoqi@0 | 103 | in.reset(); |
aoqi@0 | 104 | } else { |
aoqi@0 | 105 | if (!(in instanceof PushbackInputStream)) { |
aoqi@0 | 106 | in /*= this.in*/ = new PushbackInputStream(in, 2); |
aoqi@0 | 107 | } |
aoqi@0 | 108 | if (c2 != -1) { |
aoqi@0 | 109 | ((PushbackInputStream)in).unread(c2); |
aoqi@0 | 110 | } |
aoqi@0 | 111 | if (twoCRs) { |
aoqi@0 | 112 | ((PushbackInputStream)in).unread('\r'); |
aoqi@0 | 113 | } |
aoqi@0 | 114 | } |
aoqi@0 | 115 | } |
aoqi@0 | 116 | break; // outa here. |
aoqi@0 | 117 | } |
aoqi@0 | 118 | |
aoqi@0 | 119 | // Not CR, NL or CR-NL ... |
aoqi@0 | 120 | // .. Insert the byte into our byte buffer |
aoqi@0 | 121 | if (--room < 0) { // No room, need to grow. |
aoqi@0 | 122 | if (buf.length < MAX_INCR) { |
aoqi@0 | 123 | buf = new char[buf.length * 2]; |
aoqi@0 | 124 | } else { |
aoqi@0 | 125 | buf = new char[buf.length + MAX_INCR]; |
aoqi@0 | 126 | } |
aoqi@0 | 127 | room = buf.length - offset - 1; |
aoqi@0 | 128 | System.arraycopy(lineBuffer, 0, buf, 0, offset); |
aoqi@0 | 129 | lineBuffer = buf; |
aoqi@0 | 130 | } |
aoqi@0 | 131 | buf[offset++] = (char)c1; |
aoqi@0 | 132 | } |
aoqi@0 | 133 | |
aoqi@0 | 134 | if ((c1 == -1) && (offset == 0)) { |
aoqi@0 | 135 | return null; |
aoqi@0 | 136 | } |
aoqi@0 | 137 | |
aoqi@0 | 138 | return String.copyValueOf(buf, 0, offset); |
aoqi@0 | 139 | } |
aoqi@0 | 140 | } |