RrdMetaDataUtils (OpenNMS 2022.1.1 API)

java.lang.Object
- org.opennms.netmgt.rrd.RrdMetaDataUtils

```
public abstract class RrdMetaDataUtils
extends Object
```
Provides static methods for interacting with .meta files.

Constructor Summary

Constructors
Constructor Description

RrdMetaDataUtils()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`createMetaDataFile(String directory, String rrdName, Map<String,String> attributeMappings)`	Writes a file with the attribute to rrd track mapping next to the rrd file.
`static Map<String,String>`	`readMetaDataFile(File directory, String rrdName)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- RrdMetaDataUtils
```
public RrdMetaDataUtils()
```

Method Detail

createMetaDataFile
```
public static void createMetaDataFile(String directory,
                                      String rrdName,
                                      Map<String,String> attributeMappings)
```
Writes a file with the attribute to rrd track mapping next to the rrd file. attributMappings = Key(attributeId, for example SNMP OID or JMX bean) = value(Name of data source, for example ifInOctets)

Parameters:

directory -

rrdName -

attributeMappings - a Map that represents the mapping of attributeId to rrd track names

readMetaDataFile

public static Map<String,String> readMetaDataFile(File directory,
                                                        String rrdName)