/// <summary>
/// Query the freedb server to see if there is information on this cd
/// </summary>
/// <param name="querystring"></param>
/// <param name="queryResult"></param>
/// <param name="queryResultsColl"></param>
/// <returns></returns>
public string Query(string querystring, out QueryResult queryResult, out List<QueryResult> queryResultsColl)
{
StringBuilder builder = new StringBuilder(FreedbHelper.Commands.CMD_QUERY);
builder.Append(" ");
builder.Append(querystring);
queryResult = null;
queryResultsColl = null;
//make call
try
{
string request = builder.ToString();
List<string> reply = SendRequest(request);
if (reply.Count <= 0)
{
string msg = "No results returned from cddb query.";
Exception ex = new Exception(msg, null);
throw ex;
}
string code = GetReplyCode(reply, request);
switch (code)
{
case ResponseCodes.CODE_200:
queryResult = new QueryResult(reply[0]);
break;
case ResponseCodes.CODE_210:
case ResponseCodes.CODE_211:
{
queryResultsColl = new List<QueryResult>();
//remove first line, this one has code 210 or 211
reply.RemoveAt(0);
foreach (string line in reply)
{
if (line.StartsWith(Commands.CMD_TERMINATOR))
break;
QueryResult result = new QueryResult(line, true);
queryResultsColl.Add(result);
}
}
break;
}
return code;
}
catch (Exception ex)
{
string msg = "Unable to perform cddb query.";
Exception newex = new Exception(msg,ex);
throw newex ;
}
}
/// <summary>
/// Read Entry from the database.
/// </summary>
/// <param name="qr">A QueryResult object that is created by performing a query</param>
/// <param name="cdEntry">out parameter - CDEntry object</param>
/// <returns></returns>
public string Read(QueryResult qr, out CDEntry cdEntry)
{
StringBuilder builder = new StringBuilder(FreedbHelper.Commands.CMD_READ);
builder.Append(" ");
builder.Append(qr.Category);
builder.Append(" ");
builder.Append(qr.Discid);
cdEntry = null;
try
{
string request = builder.ToString();
List<string> reply = SendRequest(request);
if (reply.Count <= 0)
{
string msg = "No results returned from cddb query.";
Exception ex = new Exception(msg, null);
throw ex;
}
string code = GetReplyCode(reply, request);
switch (code)
{
case ResponseCodes.CODE_210:
case ResponseCodes.CODE_211:
{
//remove first line, this one has code 210 or 211
reply.RemoveAt(0);
cdEntry = new CDEntry(reply);
}
break;
}
return code;
}
catch (Exception ex)
{
string msg = "Unable to perform cddb query.";
Exception newex = new Exception(msg, ex);
throw newex;
}
}
