private void btnSearchKey_Click(object sender, EventArgs e)
{
if (RedisClient == null)
{
DoConnection();
}
try
{
this.treeKeys.Nodes.Clear();
System.Threading.EventWaitHandle waitHandle = new System.Threading.EventWaitHandle(false, System.Threading.EventResetMode.AutoReset);
List <string> keys = null;
new Task(() =>
{
keys = RedisClient.SearchKeys(txtPattern.Text);
waitHandle.Set();
}).Start();
if (!waitHandle.WaitOne(RedisClient.SendTimeout))
{
RedisClient.Dispose();
RedisClient = null;
throw new Exception("search keys timeout!");
}
NestedHash keysTree = new NestedHash();
foreach (string key in keys)
{
string[] keySegments = key.Split(':');
NestedHash pHash = keysTree; // 指针
string pKeySegment = ""; // 指针
for (int i = 0; i < keySegments.Length; i++)
{
string keySegment = keySegments[i];
if (i > 0)
{
if (pHash[pKeySegment] == null)
{
NestedHash hash = new NestedHash();
pHash[pKeySegment] = hash;
pHash = hash;
}
else
{
pHash = pHash[pKeySegment] as NestedHash;
}
}
if (!pHash.ContainsKey(keySegment))
{
pHash.Add(keySegment, null);
}
pKeySegment = keySegment;
}
}
BuildTree(this.treeKeys.Nodes, keysTree);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void BuildTree(TreeNodeCollection treeNodes, NestedHash nestedHash)
{
foreach (var item in nestedHash)
{
TreeNode treeNode = treeNodes.Add(item.Key);
NestedHash hash = item.Value as NestedHash;
if (hash != null)
{
BuildTree(treeNode.Nodes, hash);
}
}
}