/// <summary>
/// 指定した式ツリーを使用して図書館検索を実行します。
/// </summary>
/// <param name="expression">式ツリーを示す <see cref="System.Linq.Expressions.Expression"/>。</param>
/// <returns>実行結果を示す <see cref="System.Object"/>。</returns>
public override object Execute(Expression expression)
{
using (var client = new HttpClient()) {
var builder = new CalilLibraryExpressionBuilder()
{
AppKey = this.AppKey,
Format = this.Format,
};
var expr = builder.Create(expression);
var uri = new UriQueryParser(expr).Parse(this.BaseUriString);
var text = client.GetStringAsync(uri).Wait <string>();
if (text == null)
{
return(null);
}
return(CalilLibraryResult.Parse(text));
}
}
/// <summary>
/// 指定した式ツリーを使用して蔵書検索を実行します。
/// </summary>
/// <param name="expression">式ツリーを示す <see cref="System.Linq.Expressions.Expression"/>。</param>
/// <returns>実行結果を示す <see cref="System.Object"/>。</returns>
public override object Execute(Expression expression)
{
using (var client = new HttpClient()) {
var builder = new CalilCheckExpressionBuilder()
{
AppKey = this.AppKey,
Format = this.Format,
};
var expr = builder.Create(expression);
while (true)
{
var uri = new UriQueryParser(expr).Parse(this.BaseUriString);
var text = client.GetStringAsync(uri).Wait <string>();
if (text == null)
{
return(null);
}
var xml = XElement.Parse(text, LoadOptions.None);
if ((bool)xml.Element("continue") == true)
{
if (this.OnPolling == null ||
this.OnPolling.Invoke(CalilCheckResult.Parse(xml)) != true)
{
return(null);
}
Task.Delay(PollingInterval).Wait();
expr = builder.Create((string)xml.Element("session"));
}
else
{
return(CalilCheckResult.Parse(xml));
}
}
;
}
}
