Package Products :: Package ZenHub :: Package services :: Module RRDImpl :: Class RRDImpl |
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# Class RRDImpl

source code
RRDUtil wrapper class for zenhub

Instance Methods | [hide private]
__init__(self, dmd) Initializer | source code
number or None |
writeRRD(self, devId, compType, compId, dpName, value) Write the given data to its RRD file. | source code
string |
getDefaultRRDCreateCommand(self, device) Get the overridable create command for new RRD files. | source code
object |
getDeviceOrComponent(self, devId, compId, compType) If a compId is given then try to return that component. | source code
checkThresholds(self, dev, dp, value) Check the given value against any thresholds. | source code

Class Variables | [hide private]
| LONG_RRD_TYPES = `['COUNTER', 'DERIVE']`

Method Details | [hide private]

### __init__(self, dmd) (Constructor) | source code
Initializer Parameters: `dmd` (dmd object) - Device Management Database (DMD) reference

### writeRRD(self, devId, compType, compId, dpName, value) | source code
Write the given data to its RRD file. Also check any thresholds and send events if value is out of bounds. Note that if the write does not succeed, a None value is returned. Parameters: `devId` (string) - device name (as known by DMD) `compType` (string) - component type (found in objects meta_type field) `compId` (string) - name of the component `dpName` (string) - name of the data point `value` (number) - performance metric to store Returns: number or None valid value (ie long or float) or None

### getDefaultRRDCreateCommand(self, device) | source code
Get the overridable create command for new RRD files. Parameters: `device` (device object) - device object from in DMD Returns: string RRD create command

### getDeviceOrComponent(self, devId, compId, compType) | source code
If a compId is given then try to return that component. If unable to find it or if compId is not specified then try to return the given device. If unable to find then return None. Parameters: `devId` (string) - device name (as known by DMD) `compId` (string) - name of the component `compType` (string) - component type (found in objects meta_type field) Returns: object device or component object

### checkThresholds(self, dev, dp, value) | source code
Check the given value against any thresholds. Count the number of times a dp has exceeded a given threshold in self.counts. Send events as appropriate. Parameters: `dev` (object) - device or component object `dp` (RRD datapoint object) - datapoint `value` (number) - performance metric to compare