1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QDecoderStream.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,84 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +/*
1.30 + * @(#)QDecoderStream.java 1.5 02/03/27
1.31 + */
1.32 +
1.33 +
1.34 +
1.35 +package com.sun.xml.internal.messaging.saaj.packaging.mime.util;
1.36 +
1.37 +import java.io.IOException;
1.38 +import java.io.InputStream;
1.39 +
1.40 +/**
1.41 + * This class implements a Q Decoder as defined in RFC 2047
1.42 + * for decoding MIME headers. It subclasses the QPDecoderStream class.
1.43 + *
1.44 + * @author John Mani
1.45 + */
1.46 +
1.47 +public class QDecoderStream extends QPDecoderStream {
1.48 +
1.49 + /**
1.50 + * Create a Q-decoder that decodes the specified input stream.
1.51 + * @param in the input stream
1.52 + */
1.53 + public QDecoderStream(InputStream in) {
1.54 + super(in);
1.55 + }
1.56 +
1.57 + /**
1.58 + * Read the next decoded byte from this input stream. The byte
1.59 + * is returned as an <code>int</code> in the range <code>0</code>
1.60 + * to <code>255</code>. If no byte is available because the end of
1.61 + * the stream has been reached, the value <code>-1</code> is returned.
1.62 + * This method blocks until input data is available, the end of the
1.63 + * stream is detected, or an exception is thrown.
1.64 + *
1.65 + * @return the next byte of data, or <code>-1</code> if the end of the
1.66 + * stream is reached.
1.67 + * @exception IOException if an I/O error occurs.
1.68 + */
1.69 + public int read() throws IOException {
1.70 + int c = in.read();
1.71 +
1.72 + if (c == '_') // Return '_' as ' '
1.73 + return ' ';
1.74 + else if (c == '=') {
1.75 + // QP Encoded atom. Get the next two bytes ..
1.76 + ba[0] = (byte)in.read();
1.77 + ba[1] = (byte)in.read();
1.78 + // .. and decode them
1.79 + try {
1.80 + return ASCIIUtility.parseInt(ba, 0, 2, 16);
1.81 + } catch (NumberFormatException nex) {
1.82 + throw new IOException("Error in QP stream " + nex.getMessage());
1.83 + }
1.84 + } else
1.85 + return c;
1.86 + }
1.87 +}
