1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/org/sonews/util/io/ArticleInputStream.java	Sun Aug 29 17:28:58 2010 +0200
     1.3 @@ -0,0 +1,71 @@
     1.4 +/*
     1.5 + *   SONEWS News Server
     1.6 + *   see AUTHORS for the list of contributors
     1.7 + *
     1.8 + *   This program is free software: you can redistribute it and/or modify
     1.9 + *   it under the terms of the GNU General Public License as published by
    1.10 + *   the Free Software Foundation, either version 3 of the License, or
    1.11 + *   (at your option) any later version.
    1.12 + *
    1.13 + *   This program is distributed in the hope that it will be useful,
    1.14 + *   but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 + *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.16 + *   GNU General Public License for more details.
    1.17 + *
    1.18 + *   You should have received a copy of the GNU General Public License
    1.19 + *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
    1.20 + */
    1.21 +
    1.22 +package org.sonews.util.io;
    1.23 +
    1.24 +import java.io.ByteArrayOutputStream;
    1.25 +import java.io.IOException;
    1.26 +import java.io.InputStream;
    1.27 +import java.io.UnsupportedEncodingException;
    1.28 +import org.sonews.storage.Article;
    1.29 +
    1.30 +/**
    1.31 + * Capsulates an Article to provide a raw InputStream.
    1.32 + * @author Christian Lins
    1.33 + * @since sonews/0.5.0
    1.34 + */
    1.35 +public class ArticleInputStream extends InputStream
    1.36 +{
    1.37 +
    1.38 +  private byte[] buf;
    1.39 +  private int    pos = 0;
    1.40 +  
    1.41 +  public ArticleInputStream(final Article art)
    1.42 +    throws IOException, UnsupportedEncodingException
    1.43 +  {
    1.44 +    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    1.45 +    out.write(art.getHeaderSource().getBytes("UTF-8"));
    1.46 +    out.write("\r\n\r\n".getBytes());
    1.47 +    out.write(art.getBody()); // Without CRLF
    1.48 +    out.flush();
    1.49 +    this.buf = out.toByteArray();
    1.50 +  }
    1.51 +
    1.52 +  /**
    1.53 +   * This method reads one byte from the stream.  The <code>pos</code>
    1.54 +   * counter is advanced to the next byte to be read.  The byte read is
    1.55 +   * returned as an int in the range of 0-255.  If the stream position
    1.56 +   * is already at the end of the buffer, no byte is read and a -1 is
    1.57 +   * returned in order to indicate the end of the stream.
    1.58 +   *
    1.59 +   * @return The byte read, or -1 if end of stream
    1.60 +   */
    1.61 +  @Override
    1.62 +  public synchronized int read()
    1.63 +  {
    1.64 +    if(pos < buf.length)
    1.65 +    {
    1.66 +      return ((int)buf[pos++]) & 0xFF;
    1.67 +    }
    1.68 +    else
    1.69 +    {
    1.70 +      return -1;
    1.71 +    }
    1.72 +  }
    1.73 +  
    1.74 +}