org.opennms.netmgt.timeseries.meta

Class TimeSeriesMetaDataDao

java.lang.Object

org.opennms.netmgt.timeseries.meta.TimeSeriesMetaDataDao

@Service
public class TimeSeriesMetaDataDao
extends Object

TimeSeriesMetaDataDao stores string values associated with resourceids in the database. It leverages a Guava cache. Design choice: for speed and high throughput we don't keep the cache and the database 100% in sync at the time of writing. Latest 'cache_duration' after writing they will be the same.

Constructor Summary

Constructors

Constructor and Description
TimeSeriesMetaDataDao(DataSource dataSource, long cacheSize, long cacheDuration)

Method Summary

Modifier and Type	Method and Description
Map<String,String>	getForResourcePath(ResourcePath path)
void	store(Collection<MetaData> metaDataCollection)
void	storeUncached(Collection<MetaData> metaDataCollection)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TimeSeriesMetaDataDao

@Autowired
public TimeSeriesMetaDataDao(DataSource dataSource,
                                        @Named(value="timeseries.metadata.cache_size")
                                        long cacheSize,
                                        @Named(value="timeseries.metadata.cache_duration")
                                        long cacheDuration)

Method Detail

store

public void store(Collection<MetaData> metaDataCollection)
           throws SQLException

Throws:

SQLException

storeUncached

public void storeUncached(Collection<MetaData> metaDataCollection)
                   throws SQLException

Throws:

SQLException

getForResourcePath

public Map<String,String> getForResourcePath(ResourcePath path)
                                      throws org.opennms.integration.api.v1.timeseries.StorageException

Throws:

org.opennms.integration.api.v1.timeseries.StorageException