/// <summary>
/// 报告指定的字节数组在源数组中的第一个匹配项的索引。
/// </summary>
/// <param name="data">源数组</param>
/// <param name="target">指定的字节数组</param>
/// <param name="position">开始匹配的位置</param>
/// <returns>索引值。为-1时，指无匹配项。</returns>
public static int Find(this byte[] data, byte[] target, int position = 0)
{
if (UtilCollection.IsNullOrEmpty(target))
{
return(-1);
}
int i;
for (i = position; i < data.Length; i++)
{
if (i + target.Length <= data.Length)
{
int j;
for (j = 0; j < target.Length; j++)
{
if (data[i + j] != target[j])
{
break;
}
}
if (j == target.Length)
{
return(i);
}
}
else
{
break;
}
}
return(-1);
}
/// <summary>
/// 快速创建并追加一个普通的数据节点
/// </summary>
/// <param name="element">The element.</param>
/// <param name="localName">The localName.</param>
/// <param name="value">The value.</param>
/// <param name="attributes">属性集合</param>
public static XmlElement SetChildElement(this XmlElement element, string localName, object value, params Tuple <string, string>[] attributes)
{
XmlElement ele = null;
if (element != null && element.OwnerDocument != null)
{
ele = element.OwnerDocument.CreateElement(localName);
if (value != null && !string.IsNullOrWhiteSpace(value.ToString()))
{
ele.InnerText = value.ToString();
}
if (!UtilCollection.IsNullOrEmpty(attributes))
{
foreach (var attribute in attributes)
{
if (!ele.HasAttribute(attribute.Item1))
{
ele.SetAttribute(attribute.Item1, attribute.Item2);
}
}
}
element.AppendChild(ele);
}
return(ele);
}
/// <summary>判断指定的字节数组是否是被GZip压缩过的
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <returns>
/// <c>true</c> if the specified bytes is compressed; otherwise, <c>false</c>.
/// </returns>
public static bool IsCompressed(this byte[] bytes)
{
if (UtilCollection.IsNullOrEmpty(bytes))
{
return(false);
}
return((bytes[0] == 31) && (bytes[1] == 139));
}
public void Execute(string taskKey, string[] parameters)
{
var taskHolderList = _taskLocator.GetTaskHolderList();
var taskHolder = taskHolderList.FirstOrDefault(h => h.Key == taskKey);
if (taskHolder == null)
{
Console.WriteLine(Strings.task_not_found);
return;
}
var dic = UtilCollection.ExtractParams(parameters).ToDictionary(itm => itm.Key, itm => (object)itm.Value);
taskHolder.Task.Execute(dic);
}
private void ListModified(float[] elements)
{
product = UtilCollection.Product(elements);
OnProductUpdated(product);
}
