/// <summary>
/// 批量创建一组节点
/// </summary>
/// <param name="zk"></param>
/// <param name="nodes"></param>
/// <param name="index"></param>
/// <param name="callback">当所有节点创建完毕时的回调</param>
static private void TryEnsureCreate(IZookClient zk, NodeInfo[] nodes, int index, Action callback)
{
if (index >= nodes.Length)
{
if (callback != null)
{
callback();
}
return;
}
var currNode = nodes[index];
zk.Create(currNode.Path, currNode.Data, currNode.ACL, currNode.CreateMode).ContinueWith(c =>
{
if (c.IsFaulted)
{
var kex = c.Exception.InnerException as KeeperException;
if (kex == null || kex.Error != Data.ZoookError.NODEEXISTS)
{
TaskEx.Delay(new Random().Next(1000, 3000), () => TryEnsureCreate(zk, nodes, index, callback));
return;
}
}
TryEnsureCreate(zk, nodes, index + 1, callback);
});
}
/// <summary>
/// try create node
/// </summary>
/// <param name="zk"></param>
/// <param name="node"></param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">zk is null.</exception>
/// <exception cref="ArgumentNullException">node is null.</exception>
static public Task TryCreate(IZookClient zk, NodeInfo node)
{
if (zk == null) throw new ArgumentNullException("zk");
if (node == null) throw new ArgumentNullException("node");
return zk.Create(node.Path, node.Data, node.ACL, node.CreateMode).ContinueWith(c =>
{
var ex = c.Exception.InnerException as KeeperException;
if (ex != null && ex.Error == Data.ZoookError.NODEEXISTS) return;
throw c.Exception.InnerException;
}, TaskContinuationOptions.OnlyOnFaulted);
}
/// <summary>
/// 批量创建一组节点
/// </summary>
/// <param name="zk"></param>
/// <param name="nodes"></param>
/// <param name="index"></param>
/// <param name="callback">当所有节点创建完毕时的回调</param>
static private void TryEnsureCreate(IZookClient zk, NodeInfo[] nodes, int index, Action callback)
{
if (index >= nodes.Length) { if (callback != null) callback(); return; }
var currNode = nodes[index];
zk.Create(currNode.Path, currNode.Data, currNode.ACL, currNode.CreateMode).ContinueWith(c =>
{
if (c.IsFaulted)
{
var kex = c.Exception.InnerException as KeeperException;
if (kex == null || kex.Error != Data.ZoookError.NODEEXISTS)
{
TaskEx.Delay(new Random().Next(1000, 3000), () => TryEnsureCreate(zk, nodes, index, callback));
return;
}
}
TryEnsureCreate(zk, nodes, index + 1, callback);
});
}
/// <summary>
/// try create node
/// </summary>
/// <param name="zk"></param>
/// <param name="node"></param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">zk is null.</exception>
/// <exception cref="ArgumentNullException">node is null.</exception>
static public Task TryCreate(IZookClient zk, NodeInfo node)
{
if (zk == null)
{
throw new ArgumentNullException("zk");
}
if (node == null)
{
throw new ArgumentNullException("node");
}
return(zk.Create(node.Path, node.Data, node.ACL, node.CreateMode).ContinueWith(c =>
{
var ex = c.Exception.InnerException as KeeperException;
if (ex != null && ex.Error == Data.ZoookError.NODEEXISTS)
{
return;
}
throw c.Exception.InnerException;
}, TaskContinuationOptions.OnlyOnFaulted));
}
/// <summary>
/// try create nodes
/// </summary>
/// <param name="zk"></param>
/// <param name="nodes"></param>
/// <param name="index"></param>
/// <param name="source"></param>
static private void TryCreate(IZookClient zk, NodeInfo[] nodes, int index, TaskCompletionSource<bool> source)
{
if (index >= nodes.Length)
{
source.TrySetResult(true);
return;
}
var node = nodes[index];
zk.Create(node.Path, node.Data, node.ACL, node.CreateMode).ContinueWith(c =>
{
if (c.IsFaulted)
{
var ex = c.Exception.InnerException as KeeperException;
if (ex == null || ex.Error != Data.ZoookError.NODEEXISTS)
{
source.TrySetException(c.Exception.InnerException);
return;
}
}
TryCreate(zk, nodes, index + 1, source);
});
}
/// <summary>
/// try create nodes
/// </summary>
/// <param name="zk"></param>
/// <param name="nodes"></param>
/// <param name="index"></param>
/// <param name="source"></param>
static private void TryCreate(IZookClient zk, NodeInfo[] nodes, int index, TaskCompletionSource <bool> source)
{
if (index >= nodes.Length)
{
source.TrySetResult(true);
return;
}
var node = nodes[index];
zk.Create(node.Path, node.Data, node.ACL, node.CreateMode).ContinueWith(c =>
{
if (c.IsFaulted)
{
var ex = c.Exception.InnerException as KeeperException;
if (ex == null || ex.Error != Data.ZoookError.NODEEXISTS)
{
source.TrySetException(c.Exception.InnerException);
return;
}
}
TryCreate(zk, nodes, index + 1, source);
});
}