Package org.epics.archiverappliance.config

Class DefaultConfigService

java.lang.Object
org.epics.archiverappliance.config.DefaultConfigService
All Implemented Interfaces:
ConfigService
Direct Known Subclasses:
ConfigServiceForTests
public class DefaultConfigService extends Object implements ConfigService
This is the default config service for the archiver appliance. There is a subclass that is used in the junit tests.
Author:
mshankar

  • Field Details

  • Constructor Details

    • DefaultConfigService

      protected DefaultConfigService()

  • Method Details

    • initialize

      public void initialize(javax.servlet.ServletContext sce) throws ConfigException
      Description copied from interface: ConfigService
      If you have a null constructor and need a ServletContext, implement this method.
      Specified by:
      initialize in interface ConfigService
      Parameters:
      sce - ServletContext
      Throws:
      ConfigException -  

    • postStartup

      public void postStartup() throws ConfigException
      Description copied from interface: ConfigService
      This method is called after the mgmt WAR file has started up and set up the cluster and recovered data from persistence. Each appliance's mgmt war is responsible for calling this method on the other components (engine, etl and retrieval) using BPL. Until this method is called on all the web apps, the cluster is not considered to have started up.
      Specified by:
      postStartup in interface ConfigService
      Throws:
      ConfigException -  

    • getStartupState

      public ConfigService.STARTUP_SEQUENCE getStartupState()
      Description copied from interface: ConfigService
      Used for inter-appliance startup checks.
      Specified by:
      getStartupState in interface ConfigService
      Returns:
      STARTUP_SEQUENCE  

    • updatePVSForThisAppliance

      public void updatePVSForThisAppliance(PVTypeInfoEvent event)

    • publishEventIntoCluster

      public void publishEventIntoCluster(PubSubEvent pubSubEvent)

    • isStartupComplete

      public boolean isStartupComplete()
      Description copied from interface: ConfigService
      Have we completed all the startup steps?
      Specified by:
      isStartupComplete in interface ConfigService
      Returns:
      boolean True or False

    • getInstallationProperties

      public Properties getInstallationProperties()
      Description copied from interface: ConfigService
      An arbitrary list of name/value pairs can be specified in a file called archappl.properties that is loaded from the classpath.
      Specified by:
      getInstallationProperties in interface ConfigService
      Returns:
      Properties  

    • getAppliancesInCluster

      public Collection<ApplianceInfo> getAppliancesInCluster()
      Description copied from interface: ConfigService
      Get all the appliances in this cluster. Much goodness is facilitated if the objects are returned in the same order (perhaps order of creation) all the time.
      Specified by:
      getAppliancesInCluster in interface ConfigService
      Returns:
      ApplianceInfo  

    • hasClusterFinishedInitialization

      public boolean hasClusterFinishedInitialization()
      Description copied from interface: ConfigService
      To prevent split brain side-effects, we support cetain BPL only when all the member of the cluster have finished loading their PVs into the cluster. This consists of two checks 1) Make sure all appliances listed in appliances.xml have started up and are part of the cluster 2) All appliances in the cluster have registered their PVs with the cluster. Previously, we'd allow appliances.xml to have more appliances that are actually present in the cluster. However; this is becoming increasingly hard to support. We've had to tighten this to avoid split brain issues which can happen when the networking between instances fails.
      Specified by:
      hasClusterFinishedInitialization in interface ConfigService
      Returns:
      boolean  

    • getMyApplianceInfo

      public ApplianceInfo getMyApplianceInfo()
      Description copied from interface: ConfigService
      Get the appliance information for this appliance.
      Specified by:
      getMyApplianceInfo in interface ConfigService
      Returns:
      ApplianceInfo  

    • getAppliance

      public ApplianceInfo getAppliance(String identity)
      Description copied from interface: ConfigService
      Given an identity of an appliance, return the appliance info for that appliance
      Specified by:
      getAppliance in interface ConfigService
      Parameters:
      identity - The appliance identify
      Returns:
      ApplianceInfo  

    • getAllPVs

      public Collection<String> getAllPVs()
      Description copied from interface: ConfigService
      Get an exhaustive list of all the PVs this cluster of appliances knows about Much goodness is facilitated if the objects are returned in the same order (perhaps order of creation) all the time.
      Specified by:
      getAllPVs in interface ConfigService
      Returns:
      String AllPVs  

    • getApplianceForPV

      public ApplianceInfo getApplianceForPV(String pvName)
      Description copied from interface: ConfigService
      Given a PV, get us the appliance that is responsible for archiving it. Note that this may be null as the assignment of PV's to appliances can take some time.
      Specified by:
      getApplianceForPV in interface ConfigService
      Parameters:
      pvName - The name of PV.
      Returns:
      ApplianceInfo  

    • getPVsForAppliance

      public Set<String> getPVsForAppliance(ApplianceInfo info)
      Description copied from interface: ConfigService
      Get all PVs being archived by this appliance. Much goodness is facilitated if the objects are returned in the same order (perhaps order of creation) all the time.
      Specified by:
      getPVsForAppliance in interface ConfigService
      Parameters:
      info - ApplianceInfo
      Returns:
      string All PVs being archiveed by this appliance

    • getPVsForThisAppliance

      public Set<String> getPVsForThisAppliance()
      Description copied from interface: ConfigService
      Get all the PVs for this appliance. Much goodness is facilitated if the objects are returned in the same order (perhaps order of creation) all the time.
      Specified by:
      getPVsForThisAppliance in interface ConfigService
      Returns:
      String All PVs being archiveed for this appliance

    • queryPVTypeInfos

      public <T> Collection<T> queryPVTypeInfos(com.hazelcast.query.Predicate<String,PVTypeInfo> predicate, com.hazelcast.projection.Projection<Map.Entry<String,PVTypeInfo>,T> projection)
      Description copied from interface: ConfigService
      Query this cluster's pvTypeInfos using the supplied the predicate and then run the supplied projection operator. This runs using Hz's query functions and can be run from any war file For example, to quickly determine the appliances for a bunch of PV's, project the applianceIdentity and then do a stream groupby.
      Specified by:
      queryPVTypeInfos in interface ConfigService
      Returns:

    • breakDownPVsByAppliance

      public Map<String,List<String>> breakDownPVsByAppliance(List<String> pvNames)
      Description copied from interface: ConfigService
      Prepare for batch jobs by breaking down a list of PV's into a Map that maps appliance identity to a list of PV's being archived on that appliance.
      Specified by:
      breakDownPVsByAppliance in interface ConfigService
      Returns:

    • executeClusterWide

      public <T> Map<String,T> executeClusterWide(ConfigService.EAABulkOperation<T> theOperation)
      Specified by:
      executeClusterWide in interface ConfigService

    • executeOnAppliance

      public <T> T executeOnAppliance(ApplianceInfo applianceInfo, ConfigService.EAABulkOperation<T> theOperation)
      Specified by:
      executeOnAppliance in interface ConfigService

    • getPVsForApplianceMatchingRegex

      public Set<String> getPVsForApplianceMatchingRegex(String nameToMatch)
      Description copied from interface: ConfigService
      Get the pvNames for this appliance matching the given regex.
      Specified by:
      getPVsForApplianceMatchingRegex in interface ConfigService
      Parameters:
      nameToMatch -  
      Returns:
      string PVsForApplianceMatchingRegex  

    • getAggregatedApplianceInfo

      public ApplianceAggregateInfo getAggregatedApplianceInfo(ApplianceInfo applianceInfo) throws IOException
      Description copied from interface: ConfigService
      Facilitates various optimizations for BPL that uses appliance wide information by caching and maintaining this information on a per appliance basis
      Specified by:
      getAggregatedApplianceInfo in interface ConfigService
      Parameters:
      applianceInfo - ApplianceInfo
      Returns:
      ApplianceAggregateInfo  
      Throws:
      IOException -  

    • registerPVToAppliance

      public void registerPVToAppliance(String pvName, ApplianceInfo applianceInfo, PVRegistrationType registrationType) throws AlreadyRegisteredException
      Description copied from interface: ConfigService
      Make changes in the config service to register this PV to an appliance
      Specified by:
      registerPVToAppliance in interface ConfigService
      Parameters:
      pvName - The name of PV.
      applianceInfo - ApplianceInfo
      registrationType - If reassigning; then an AlreadyRegisteredException is not raised
      Throws:
      AlreadyRegisteredException -  

    • getTypeInfoForPV

      public PVTypeInfo getTypeInfoForPV(String pvName)
      Description copied from interface: ConfigService
      Gets information about a PV's type, i.e its DBR type, graphic limits etc. This information is assumed to be somewhat static and is expected to come from a cache if possible as it is used in data retrieval.
      Specified by:
      getTypeInfoForPV in interface ConfigService
      Parameters:
      pvName - The name of PV.
      Returns:
      PVTypeInfo  

    • updateTypeInfoForPV

      public void updateTypeInfoForPV(String pvName, PVTypeInfo typeInfo)
      Description copied from interface: ConfigService
      Update the type information about a PV; updating both ther persistent and cached versions of the information. Clients are not expected to call this method a million times a second. In general, this is expected to be called when archiving a PV for the first time, or perhaps when an appserver startups etc...
      Specified by:
      updateTypeInfoForPV in interface ConfigService
      Parameters:
      pvName - The name of PV.
      typeInfo - PVTypeInfo

    • removePVFromCluster

      public void removePVFromCluster(String pvName)
      Description copied from interface: ConfigService
      Remove the pv from all cached and persisted configuration.
      Specified by:
      removePVFromCluster in interface ConfigService
      Parameters:
      pvName - The name of PV.

    • addToArchiveRequests

      public void addToArchiveRequests(String pvName, UserSpecifiedSamplingParams userSpecifiedSamplingParams)
      Description copied from interface: ConfigService
      The workflow for requesting a PV to be archived consists of multiple steps This method adds a PV to the persisted list of PVs that are currently engaged in this workflow in addition to any user specified overrides
      Specified by:
      addToArchiveRequests in interface ConfigService
      Parameters:
      pvName - The name of PV.
      userSpecifiedSamplingParams - - Use a null contructor for userSpecifiedSamplingParams if no override specified.

    • updateArchiveRequest

      public void updateArchiveRequest(String pvName, UserSpecifiedSamplingParams userSpecifiedSamplingParams)
      Description copied from interface: ConfigService
      Update the archive request (mostly with aliases) if and only if we have this in our persistence.
      Specified by:
      updateArchiveRequest in interface ConfigService
      Parameters:
      pvName - The name of PV.
      userSpecifiedSamplingParams -  

    • getArchiveRequestsCurrentlyInWorkflow

      public Set<String> getArchiveRequestsCurrentlyInWorkflow()
      Description copied from interface: ConfigService
      Gets a list of PVs that are currently engaged in the archive PV workflow
      Specified by:
      getArchiveRequestsCurrentlyInWorkflow in interface ConfigService
      Returns:
      String ArchiveRequestsCurrentlyInWorkflow  

    • doesPVHaveArchiveRequestInWorkflow

      public boolean doesPVHaveArchiveRequestInWorkflow(String pvname)
      Description copied from interface: ConfigService
      Is this pv in the archive request workflow.
      Specified by:
      doesPVHaveArchiveRequestInWorkflow in interface ConfigService
      Parameters:
      pvname - The name of PV.
      Returns:
      boolean True or False

    • getUserSpecifiedSamplingParams

      public UserSpecifiedSamplingParams getUserSpecifiedSamplingParams(String pvName)
      Description copied from interface: ConfigService
      Returns any user specified parameters for the archive request.
      Specified by:
      getUserSpecifiedSamplingParams in interface ConfigService
      Parameters:
      pvName - The name of PV.
      Returns:
      UserSpecifiedSamplingParams  

    • archiveRequestWorkflowCompleted

      public void archiveRequestWorkflowCompleted(String pvName)
      Description copied from interface: ConfigService
      Mark this pv as having it archive pv request completed and pull this request out of persistent store Can be used in the case of aborting a PV archive request as well
      Specified by:
      archiveRequestWorkflowCompleted in interface ConfigService
      Parameters:
      pvName - The name of PV.

    • getInitialDelayBeforeStartingArchiveRequestWorkflow

      public int getInitialDelayBeforeStartingArchiveRequestWorkflow()
      Description copied from interface: ConfigService
      In clustered environments, to give capacity planning a chance to work correctly, we want to kick off the archive PV workflow only after all the machines have started. This is an approximation for that metric; though not a very satisfactory approximation. TODO -- Think thru implications of making the appliances.xml strict...
      Specified by:
      getInitialDelayBeforeStartingArchiveRequestWorkflow in interface ConfigService
      Returns:
      - Initial delay in seconds.

    • addAlias

      public void addAlias(String aliasName, String realName)
      Description copied from interface: ConfigService
      Register an alias
      Specified by:
      addAlias in interface ConfigService
      Parameters:
      aliasName -  
      realName - This is the name under which the PV will be archived under

    • removeAlias

      public void removeAlias(String aliasName, String realName)
      Description copied from interface: ConfigService
      Remove an alias for the specified realname
      Specified by:
      removeAlias in interface ConfigService
      Parameters:
      aliasName -  
      realName - This is the name under which the PV will be archived under

    • getRealNameForAlias

      public String getRealNameForAlias(String aliasName)
      Description copied from interface: ConfigService
      Gets the .NAME field for a PV if it exists. Otherwise, this returns null
      Specified by:
      getRealNameForAlias in interface ConfigService
      Parameters:
      aliasName -  
      Returns:
      String RealNameForAlias

    • getAliasesForRealName

      public List<String> getAliasesForRealName(String realName)
      Description copied from interface: ConfigService
      Gets all the aliases in the system that map to this real PV name
      Specified by:
      getAliasesForRealName in interface ConfigService
      Parameters:
      realName -  
      Returns:
      A list of aliases for this real name

    • getAllAliases

      public List<String> getAllAliases()
      Description copied from interface: ConfigService
      Get all the aliases in the system. This is used for matching during glob requests in the UI.
      Specified by:
      getAllAliases in interface ConfigService
      Returns:
      String AllAliases  

    • getExtraFields

      public String[] getExtraFields()
      Description copied from interface: ConfigService
      Get a list of extra fields that are obtained when we initially make a request for archiving. These are used in the policies to make decisions on how to archive the PV.
      Specified by:
      getExtraFields in interface ConfigService
      Returns:
      String ExtraFields  

    • getRuntimeFields

      public Set<String> getRuntimeFields()
      Description copied from interface: ConfigService
      Get a list of fields for PVs that are monitored and maintained in the engine. These are used when displaying the PV in visualization tools like the ArchiveViewer as additional information for the PV. Some of these could be archived along with the PV but need not be. In this case, the engine simply maintains the latest copy in memory and this is served up when data from the engine in included in the stream.
      Specified by:
      getRuntimeFields in interface ConfigService
      Returns:
      String RuntimeFields

    • getETLLookup

      public PBThreeTierETLPVLookup getETLLookup()
      Description copied from interface: ConfigService
      Return the runtime state for ETL. This may eventually be moved to a RunTime class but that would still start from the configservice.
      Specified by:
      getETLLookup in interface ConfigService
      Returns:
      PBThreeTierETLPVLookup  

    • getRetrievalRuntimeState

      public RetrievalState getRetrievalRuntimeState()
      Description copied from interface: ConfigService
      Returns the runtime state for the retrieval app
      Specified by:
      getRetrievalRuntimeState in interface ConfigService
      Returns:
      RetrievalState  

    • isShuttingDown

      public boolean isShuttingDown()
      Description copied from interface: ConfigService
      Is this appliance component shutting down?
      Specified by:
      isShuttingDown in interface ConfigService
      Returns:
      boolean True or False

    • addShutdownHook

      public void addShutdownHook(Runnable runnable)
      Description copied from interface: ConfigService
      Add an appserver agnostic shutdown hook; for example, to close the CA channels on shutdown
      Specified by:
      addShutdownHook in interface ConfigService
      Parameters:
      runnable - Runnable

    • shutdownNow

      public void shutdownNow()
      Description copied from interface: ConfigService
      Call the registered shutdown hooks and shut the archive appliance down.
      Specified by:
      shutdownNow in interface ConfigService

    • getExternalArchiverDataServers

      public Map<String,String> getExternalArchiverDataServers()
      Description copied from interface: ConfigService
      This product has the ability to proxy data from other archiver data servers. We currently integrate with Channel Archiver XMLRPC data servers and other EPICS Archiver Appliance clusters. Get a list of external Archiver Data Servers that we know about.
      Specified by:
      getExternalArchiverDataServers in interface ConfigService
      Returns:
      Map ExternalArchiverDataServers

    • addExternalArchiverDataServer

      public void addExternalArchiverDataServer(String serverURL, String archivesCSV) throws IOException
      Description copied from interface: ConfigService
      Add a external Archiver Data Server into the system.
      Specified by:
      addExternalArchiverDataServer in interface ConfigService
      Parameters:
      serverURL - - For Channel Archivers, this is the URL to the XML-RPC server. For other EPICS Archiver Appliance clusters, this is the data_retrieval_url of the cluster as defined in the appliances.xml.
      archivesCSV - - For Channel Archivers, this is a comma separated list of indexes. For other EPICS Archiver Appliance clusters, this is the string pbraw.
      Throws:
      IOException -  

    • removeExternalArchiverDataServer

      public void removeExternalArchiverDataServer(String serverURL, String archivesCSV) throws IOException
      Description copied from interface: ConfigService
      Removes an entry for an external Archiver Data Server from the system Note; we may need to restart the entire cluster for this change to take effect.
      Specified by:
      removeExternalArchiverDataServer in interface ConfigService
      Parameters:
      serverURL - - For Channel Archivers, this is the URL to the XML-RPC server. For other EPICS Archiver Appliance clusters, this is the data_retrieval_url of the cluster as defined in the appliances.xml.
      archivesCSV - - For Channel Archivers, this is a comma separated list of indexes. For other EPICS Archiver Appliance clusters, this is the string pbraw.
      Throws:
      IOException -  

    • getChannelArchiverDataServers

      public List<ChannelArchiverDataServerPVInfo> getChannelArchiverDataServers(String pvName)
      Description copied from interface: ConfigService
      Return a list of ChannelArchiverDataServerPVInfos for a PV if one exists; otherwise return null. The servers are sorted in order of the start seconds. Note: this only applies to Channel Archiver XML RPC servers. For proxying external EPICS Archiver Appliance clusters, we do not cache the PV's that are being archived on the external system.
      Specified by:
      getChannelArchiverDataServers in interface ConfigService
      Parameters:
      pvName - The name of PV.
      Returns:
      ChannelArchiverDataServerPVInfo  

    • computePolicyForPV

      public PolicyConfig computePolicyForPV(String pvName, MetaInfo metaInfo, UserSpecifiedSamplingParams userSpecParams) throws IOException
      Description copied from interface: ConfigService
      Given a pvName (for now, we should have a pv details object of some kind soon), determine the policy applicable for archiving this PV.
      Specified by:
      computePolicyForPV in interface ConfigService
      Parameters:
      pvName - The name of PV.
      metaInfo - The MetaInfo of PV
      userSpecParams - UserSpecifiedSamplingParams
      Returns:
      PolicyConfig  
      Throws:
      IOException -  

    • getPoliciesInInstallation

      public HashMap<String,String> getPoliciesInInstallation() throws IOException
      Description copied from interface: ConfigService
      Return a map of name to description of all the policies in the system This is used to drive a dropdown in the UI.
      Specified by:
      getPoliciesInInstallation in interface ConfigService
      Returns:
      HashMap  
      Throws:
      IOException -  

    • getFieldsArchivedAsPartOfStream

      public List<String> getFieldsArchivedAsPartOfStream() throws IOException
      Description copied from interface: ConfigService
      This product offers the ability to archive certain fields (like HIHI, LOLO etc) as part of every PV. The data for these fields is embedded into the stream as extra fields using the FieldValues interface of events. This method lists all these fields. Requests for archiving these fields are deferred to and combined with the request for archiving the .VAL. We also assume that the data type (double/float) for these fields is the same as the .VAL.
      Specified by:
      getFieldsArchivedAsPartOfStream in interface ConfigService
      Returns:
      String  
      Throws:
      IOException -  

    • getArchiverTypeSystem

      public TypeSystem getArchiverTypeSystem()
      Description copied from interface: ConfigService
      Returns a TypeSystem object that is used to convert from JCA DBR's to Event's (actually, DBRTimeEvents)
      Specified by:
      getArchiverTypeSystem in interface ConfigService
      Returns:
      TypeSystem  

    • getPolicyText

      public InputStream getPolicyText() throws IOException
      Description copied from interface: ConfigService
      Return the text of the policy for this installation. Gets you an InputStream; remember to close it.
      Specified by:
      getPolicyText in interface ConfigService
      Returns:
      InputStream  
      Throws:
      IOException -  

    • getEngineContext

      public EngineContext getEngineContext()
      Description copied from interface: ConfigService
      Return the runtime state for the engine.
      Specified by:
      getEngineContext in interface ConfigService
      Returns:
      EngineContext  

    • getMgmtRuntimeState

      public MgmtRuntimeState getMgmtRuntimeState()
      Description copied from interface: ConfigService
      Return the runtime state for the mgmt webapp.
      Specified by:
      getMgmtRuntimeState in interface ConfigService
      Returns:
      MgmtRuntimeStat  

    • getWarFile

      public ConfigService.WAR_FILE getWarFile()
      Description copied from interface: ConfigService
      Which component is this configservice instance.
      Specified by:
      getWarFile in interface ConfigService
      Returns:
      WAR_FILE  

    • getEventBus

      public com.google.common.eventbus.EventBus getEventBus()
      Description copied from interface: ConfigService
      Get the event bus used for events within this appliance.
      Specified by:
      getEventBus in interface ConfigService
      Returns:
      EventBus  

    • getPVNameToKeyConverter

      public PVNameToKeyMapping getPVNameToKeyConverter()
      Description copied from interface: ConfigService
      Implementation for converting a PV name to something that forms the prefix of a chunk's key. See @see{PVNameToKeyMapping} for more details.
      Specified by:
      getPVNameToKeyConverter in interface ConfigService
      Returns:
      PVNameToKeyMapping  

    • getProcessMetrics

      public ProcessMetrics getProcessMetrics()

    • getWebInfFolder

      public String getWebInfFolder()
      Description copied from interface: ConfigService
      We expect to live within a servlet container. This call returns the full path to the WEB-INF folder of the webapp as it is deployed in the container. Is typically a call to the servletContext.getRealPath("WEB-INF/")
      Specified by:
      getWebInfFolder in interface ConfigService
      Returns:
      String WebInfFolder  

    • getPausedPVsInThisAppliance

      public Set<String> getPausedPVsInThisAppliance()
      Description copied from interface: ConfigService
      Get a set of PVs that have been paused in this appliance.
      Specified by:
      getPausedPVsInThisAppliance in interface ConfigService
      Returns:
      String  

    • refreshPVDataFromChannelArchiverDataServers

      public void refreshPVDataFromChannelArchiverDataServers()
      Description copied from interface: ConfigService
      For all the Channel Archiver XMLRPC data servers in the mix, update the PV info. This should help improve performance a little in proxying data from ChannelArchiver data servers that are still active. For proxying external EPICS Archiver Appliance clusters, since we do not cache the PV's that are being archived on the external system, this is a no-op.
      Specified by:
      refreshPVDataFromChannelArchiverDataServers in interface ConfigService

    • getFailoverApplianceURL

      public String getFailoverApplianceURL(String pvName)
      Description copied from interface: ConfigService
      Get the first external archiver appliance that also archives this PV and is configured with a mergeDuringRetrieval query parameter.
      Specified by:
      getFailoverApplianceURL in interface ConfigService
      Returns:
      - Returns null if no failover appliance.

    • getFailoverServerURLs

      public Set<String> getFailoverServerURLs()
      Description copied from interface: ConfigService
      Get a list of external archiver appliances configured for failover. Failover appliances are not used as proxies to minimize imposing the retrieval load of the this installation on a potentially less powerful appliance used principally for failover.
      Specified by:
      getFailoverServerURLs in interface ConfigService
      Returns:

    • resetFailoverCaches

      public void resetFailoverCaches()
      Description copied from interface: ConfigService
      Each retrieval component in a cluster caches the PV's from remote failover appliances. These caches contain one entry for each PV in this appliance indicating if the PV is being archived in the remote appliance. This information is cached using a TTL to minimize the impact on the remote failover appliance. This method manually unloads this cache.
      Specified by:
      resetFailoverCaches in interface ConfigService

    • getNamedFlag

      public boolean getNamedFlag(String name)
      Description copied from interface: ConfigService
      Named flags are used to control various process in the appliance; for example, the ETL process in a PlainStoragePlugin Named flags are not persistent; each time the server starts up, all the named flags are set to false You can optionally load values for named flags from a file by specifying the ARCHAPPL_NAMEDFLAGS_PROPERTIES_FILE_PROPERTY property in archappl.properties. This method gets the value of the specified named flag. If the flag has not been defined before in the cluster, this method will return false.
      Specified by:
      getNamedFlag in interface ConfigService
      Parameters:
      name -  
      Returns:
      boolean True or False

    • setNamedFlag

      public void setNamedFlag(String name, boolean value)
      Description copied from interface: ConfigService
      Sets the value of the named flag specified by name to the specified value
      Specified by:
      setNamedFlag in interface ConfigService
      Parameters:
      name -  
      value -  

    • getNamedFlagNames

      public Set<String> getNamedFlagNames()
      Description copied from interface: ConfigService
      Return the names of all the named flags that we know about
      Specified by:
      getNamedFlagNames in interface ConfigService
      Returns:
      String  

    • getTimeOfAppserverStartup

      public long getTimeOfAppserverStartup()
      Description copied from interface: ConfigService
      Get an approximate time in epoch seconds when the appserver started up.
      Specified by:
      getTimeOfAppserverStartup in interface ConfigService
      Returns:
      The time this app server started up.

    • getAllExpandedNames

      public void getAllExpandedNames(Consumer<String> func)
      Description copied from interface: ConfigService
      For automated PV submission, IOC engineers could add .VAL, fields, aliases etc. This method attempts to return all possible PV's that the archiver could know about. This is a lot of names; so we take in a consumer that potentially streams a name out as quickly as possible.
      Specified by:
      getAllExpandedNames in interface ConfigService
      Parameters:
      func - A consumer of pvNames