/// <summary> Create a source of characters.</summary>
/// <param name="stream">The stream of bytes to use.
/// </param>
/// <param name="charset">The character set used in encoding the stream.
/// </param>
/// <param name="size">The initial character buffer size.
/// </param>
/// <exception cref="UnsupportedEncodingException">If the character set
/// is unsupported.
/// </exception>
public InputStreamSource(System.IO.Stream stream, System.String charset, int size)
: base(stream)
{
if (null == stream)
{
stream = new ParserStream(null);
}
// bug #1044707 mark()/reset() issues
else
{
//UPGRADE_ISSUE: Method 'java.io.InputStream.markSupported' was not converted. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1000_javaioInputStreammarkSupported'"
//if (!stream.markSupported())
// wrap the stream so we can reset
// stream = new Stream(stream);
}
// else
// just because mark is supported doesn't guarantee
// proper reset operation; there is no call to mark
// in this code, so if reset misbehaves there is an
// appropriate message in setEncoding() to suggest
// wraping it in a Stream.
// This was deemed better than an attempt to call
// reset at this point just to check if we would
// succeed later, or to call mark with an arbitrary
// lookahead size
mStream = stream;
if (null == charset || String.Empty == charset)
{
#if NETFX_CORE && UNITY_METRO && !UNITY_EDITOR
mEncoding = WinRTLegacy.Text.Encoding.Default.EncodingName;
mReader = new System.IO.StreamReader(stream, System.Text.Encoding.GetEncoding(mEncoding));
#else
mReader = new System.IO.StreamReader(stream, System.Text.Encoding.Default);
mEncoding = mReader.CurrentEncoding.EncodingName;
#endif
}
else
{
mEncoding = charset;
mReader = new System.IO.StreamReader(stream, System.Text.Encoding.GetEncoding(charset));
}
mBuffer = new char[size];
mLevel = 0;
mOffset = 0;
mMark = -1;
}
private void GetPageContent(HttpProtocol obProtocol, bool bIsRefresh)
{
if (m_bHasContent && !bIsRefresh)
{
return;
}
if (obProtocol == null)
{
throw new ArgumentNullException("obProtocol", "Null HttpProtocol object specified");
}
lock (this)
{
ParserStream stream = null;
System.String type = String.Empty;
System.String charset = String.Empty;
try
{
m_obProtocolOutput = obProtocol.GetProtocolOutput();
if (m_obProtocolOutput.Status.Code == HttpProtocolStatus.SUCCESS)
{
m_bHasContent = true;
this.m_HttpContentProperties = m_obProtocolOutput.Content.ContentProperties;
type = this.ContentType;
charset = GetCharset(type);
stream = new ParserStream(new System.IO.MemoryStream(m_obProtocolOutput.Content.ContentData));
}
if (null != stream)
{
mSource = new InputStreamSource(stream, charset, m_obProtocolOutput.Content.ContentData.Length);
}
}
catch (System.Exception e)
{
throw new ParserException("Failed to get page content", e);
}
mUrl = obProtocol.URL.ToString();
mIndex = new PageIndex(this);
}
}