/// <summary>Creates a new header from a buffer.</summary>
/// <remarks>
/// Creates a new header from a buffer.
/// The name of the header will be parsed immediately,
/// the value only if it is accessed.
/// </remarks>
/// <param name="buffer">the buffer containing the header to represent</param>
/// <exception cref="Org.Apache.Http.ParseException">in case of a parse error</exception>
public BufferedHeader(CharArrayBuffer buffer) : base()
{
Args.NotNull(buffer, "Char array buffer");
int colon = buffer.IndexOf(':');
if (colon == -1)
{
throw new ParseException("Invalid header: " + buffer.ToString());
}
string s = buffer.SubstringTrimmed(0, colon);
if (s.Length == 0)
{
throw new ParseException("Invalid header: " + buffer.ToString());
}
this.buffer = buffer;
this.name = s;
this.valuePos = colon + 1;
}
/// <exception cref="System.IO.IOException"></exception>
public virtual string ReadLine()
{
CharArrayBuffer charbuffer = new CharArrayBuffer(64);
int l = ReadLine(charbuffer);
if (l != -1)
{
return(charbuffer.ToString());
}
else
{
return(null);
}
}
/// <summary>
/// Generates textual representation of this content type which can be used as the value
/// of a <code>Content-Type</code> header.
/// </summary>
/// <remarks>
/// Generates textual representation of this content type which can be used as the value
/// of a <code>Content-Type</code> header.
/// </remarks>
public override string ToString()
{
CharArrayBuffer buf = new CharArrayBuffer(64);
buf.Append(this.mimeType);
if (this.@params != null)
{
buf.Append("; ");
BasicHeaderValueFormatter.Instance.FormatParameters(buf, this.@params, false);
}
else
{
if (this.charset != null)
{
buf.Append("; charset=");
buf.Append(this.charset.Name());
}
}
return(buf.ToString());
}
/// <summary>Gets a header representing all of the header values with the given name.
/// </summary>
/// <remarks>
/// Gets a header representing all of the header values with the given name.
/// If more that one header with the given name exists the values will be
/// combined with a "," as per RFC 2616.
/// <p>Header name comparison is case insensitive.
/// </remarks>
/// <param name="name">the name of the header(s) to get</param>
/// <returns>
/// a header with a condensed value or <code>null</code> if no
/// headers by the given name are present
/// </returns>
public virtual Header GetCondensedHeader(string name)
{
Header[] hdrs = GetHeaders(name);
if (hdrs.Length == 0)
{
return(null);
}
else
{
if (hdrs.Length == 1)
{
return(hdrs[0]);
}
else
{
CharArrayBuffer valueBuffer = new CharArrayBuffer(128);
valueBuffer.Append(hdrs[0].GetValue());
for (int i = 1; i < hdrs.Length; i++)
{
valueBuffer.Append(", ");
valueBuffer.Append(hdrs[i].GetValue());
}
return(new BasicHeader(name.ToLower(Sharpen.Extensions.GetEnglishCulture()), valueBuffer
.ToString()));
}
}
}
