// Drops the selected policy
async Task ShowDropPolicy()
{
try
{
var policy = SelectedRetentionPolicy;
if (policy == null || string.IsNullOrWhiteSpace(SelectedDatabase))
{
return;
}
var wasDefault = policy.Default;
// Confirm the drop
if (DialogResult.OK == MessageBox.Show(string.Format("Drop retention policy: {0}?", policy.Name), "Confirm Drop", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning))
{
var response = await InfluxDbClient.DropRetentionPolicyAsync(SelectedDatabase, policy.Name);
if (!response.Success)
{
AppForm.DisplayError(response.Body);
}
// If this was the default policy and was dropped
if (wasDefault)
{
policies = await InfluxDbClient.GetRetentionPoliciesAsync(SelectedDatabase);
if (policies.Count() > 0)
{
// Try to find the autogen/default
var rp = (from r in policies where r.Name.ToLower() == "autogen" select r).FirstOrDefault();
// Otherwise try to find another policy with a different name
if (rp == null)
{
rp = (from r in policies where r.Name != policy.Name select r).FirstOrDefault();
}
if (rp != null)
{
// If a new retention policy was found, make it the default
response = await InfluxDbClient.AlterRetentionPolicyAsync(SelectedDatabase, rp.Name, rp.Duration, rp.ReplicationCopies, true);
}
}
}
// Reload latest data
await ExecuteRequestAsync();
}
}
catch (Exception ex)
{
AppForm.DisplayException(ex);
}
}
// Binds retention policies for the current database
async Task BindSelectedPolicy()
{
listView.Items.Clear();
if (string.IsNullOrWhiteSpace(SelectedDatabase))
{
return;
}
listView.BeginUpdate();
policies = await InfluxDbClient.GetRetentionPoliciesAsync(SelectedDatabase);
foreach (var rp in policies)
{
var li = new ListViewItem(new string[]
{
rp.Name,
rp.Duration,
rp.ShardGroupDuration,
rp.ReplicationCopies.ToString(),
rp.Default ? CheckMark : null
})
{
Tag = rp
};
listView.Items.Add(li);
}
// Select current policy if any
if (SelectedRetentionPolicy != null)
{
foreach (ListViewItem li in listView.Items)
{
if (li.Text == SelectedRetentionPolicy.Name)
{
li.Selected = true;
break;
}
}
}
listView.EndUpdate();
UpdateUIState();
}
// Shows the alter policy dialog
async Task ShowAlterPolicy()
{
try
{
var policy = SelectedRetentionPolicy;
if (policy == null || string.IsNullOrWhiteSpace(SelectedDatabase))
{
return;
}
var prevIsDefault = policy.Default;
// Clear out the dialog values
policyDialog.ResetPolicyValues();
// Bind to current policy
policyDialog.BindToPolicy(SelectedRetentionPolicy);
if (policyDialog.ShowDialog() == DialogResult.OK)
{
var name = policyDialog.PolicyName;
var duration = policyDialog.PolicyDuration;
var replication = policyDialog.PolicyReplication;
var isDefault = policyDialog.PolicyDefault;
var response = await InfluxDbClient.AlterRetentionPolicyAsync(SelectedDatabase, name, duration, replication, isDefault);
if (!response.Success)
{
AppForm.DisplayError(response.Body);
}
else
{
// If default status chagned, attempt to update another policy as default
if (prevIsDefault != isDefault && !isDefault)
{
policies = await InfluxDbClient.GetRetentionPoliciesAsync(SelectedDatabase);
if (policies.Count() > 0)
{
// Try to find the autogen/default
var rp = (from r in policies where r.Name.ToLower() == "autogen" select r).FirstOrDefault();
// Otherwise try to find another policy with a different name
if (rp == null)
{
rp = (from r in policies where r.Name != policy.Name select r).FirstOrDefault();
}
if (rp != null)
{
// If a new retention policy was found, make it the default
response = await InfluxDbClient.AlterRetentionPolicyAsync(SelectedDatabase, rp.Name, rp.Duration, rp.ReplicationCopies, true);
}
}
}
}
// Reload latest data
await ExecuteRequestAsync();
}
}
catch (Exception ex)
{
AppForm.DisplayException(ex);
}
}