Package org.yamcs.parameter

Class SystemParametersService

java.lang.Object

com.google.common.util.concurrent.AbstractService

org.yamcs.AbstractYamcsService

org.yamcs.parameter.SystemParametersService

All Implemented Interfaces:

com.google.common.util.concurrent.Service, Runnable, YamcsService

Direct Known Subclasses:

SystemParametersCollector

public class SystemParametersService
extends AbstractYamcsService
implements Runnable

Collects each second system processed parameters from whomever registers and sends them on the sys_var stream

Starting with Yamcs 5.5.0, all system parameters have types defined in the MDB. For the basic types (corresponding to scalar values), this class will provide some types (e.g. uint65, float32, etc)

For aggregate, the caller can use the createSystemParameter(String, AggregateParameterType, String) to make the parameter and also add the corresponding type to the MDB.

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.common.util.concurrent.Service

com.google.common.util.concurrent.Service.Listener, com.google.common.util.concurrent.Service.State

Field Summary

Fields inherited from class org.yamcs.AbstractYamcsService

config, log, serviceName, yamcsInstance

Constructor Summary

Constructors

Constructor	Description
SystemParametersService()

Method Summary

Modifier and Type	Method	Description
EnumeratedParameterType	createEnumeratedParameterType(Class<? extends Enum<?>> enumClass)
SystemParameter	createEnumeratedSystemParameter(String relativeName, Class<? extends Enum<?>> enumClass, String description)	Creates an enumerated system parameter by deducing the possible enumeration states from the java enum.
SystemParameter	createSystemParameter(String relativeName, Yamcs.Value.Type basicType, String description)
SystemParameter	createSystemParameter(String relativeName, Yamcs.Value.Type basicType, UnitType unit, String description)	Create a system parameter for a basic value type.
SystemParameter	createSystemParameter(String relativeName, AggregateParameterType type, String description)	Creates a system parameter for an aggregate type.
static SystemParameter	createSystemParameter(Mdb mdb, String fqn, Value engValue)
static SystemParameter	createSystemParameter(Mdb mdb, String fqn, Value engValue, UnitType unit)
static SystemParameter	createSystemParameter(Mdb mdb, String fqn, Yamcs.Value.Type basicType, String description)
static SystemParameter	createSystemParameter(Mdb mdb, String fqn, Yamcs.Value.Type basicType, UnitType unit, String description)
static ParameterType	createSystemParameterType(Mdb mdb, String name, Value v, UnitType unit)
void	doStart()
void	doStop()
ParameterType	getBasicType(Yamcs.Value.Type type)
ParameterType	getBasicType(Yamcs.Value.Type type, UnitType unit)	Create (if not already existing) a basic parameter type in the MDB and return it.
static SystemParametersService	getInstance(String instance)
Mdb	getMdb()
String	getNamespace()	this is the namespace all system parameters should be in
static ParameterValue	getNewPv(String fqn, long time)	Deprecated.
static ParameterValue	getNewPv(Parameter parameter, long time)
static ParameterValue	getPV(String fqn, long time, boolean v)	Deprecated.
static ParameterValue	getPV(String fqn, long time, double v)	Deprecated.
static ParameterValue	getPV(String fqn, long time, float v)	Deprecated.
static ParameterValue	getPV(String fqn, long time, long v)	Deprecated.
static ParameterValue	getPV(String fqn, long time, String v)	Deprecated.
static ParameterValue	getPV(String fqn, long time, Value v)	Deprecated.
static ParameterValue	getPV(Parameter parameter, long time, boolean v)
static ParameterValue	getPV(Parameter parameter, long time, double v)
static ParameterValue	getPV(Parameter parameter, long time, float v)
static ParameterValue	getPV(Parameter parameter, long time, long v)
static ParameterValue	getPV(Parameter parameter, long time, String v)
static ParameterValue	getPV(Parameter parameter, long time, Value v)
static <T extends Enum<T>> ParameterValue	getPV(Parameter parameter, long time, T v)
Spec	getSpec()	Returns the valid configuration options for this service.
static ParameterValue	getUnsignedIntPV(String fqn, long time, int v)	Deprecated.
static ParameterValue	getUnsignedIntPV(Parameter parameter, long time, int v)
void	init(String yamcsInstance, String serviceName, YConfiguration config)	Initialize this service.
void	registerProducer(SystemParametersProducer p)	Register a parameter producer to be called each time the parameters are collected
void	run()	Run from the timer, collect all parameters and send them on the stream
void	unregisterProducer(SystemParametersProducer p)	Unregister producer - from now on it will not be invoked.

Methods inherited from class org.yamcs.AbstractYamcsService

findStream, getConfig, getYamcsInstance

Methods inherited from class com.google.common.util.concurrent.AbstractService

addListener, awaitRunning, awaitRunning, awaitRunning, awaitTerminated, awaitTerminated, awaitTerminated, doCancelStart, failureCause, isRunning, notifyFailed, notifyStarted, notifyStopped, startAsync, state, stopAsync, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.util.concurrent.Service

addListener, awaitRunning, awaitRunning, awaitRunning, awaitTerminated, awaitTerminated, awaitTerminated, failureCause, isRunning, startAsync, state, stopAsync

Constructor Details

SystemParametersService

public SystemParametersService()

Method Details

getSpec

public Spec getSpec()

Description copied from interface: YamcsService

Returns the valid configuration options for this service.

Specified by:

getSpec in interface YamcsService

Returns:

the argument specification, or null if the args should not be validated.

init

public void init(String yamcsInstance,
 String serviceName,
 YConfiguration config)
          throws InitException

Description copied from interface: YamcsService

Initialize this service. This is called before the service is started. All operations should finish fast.

Specified by:

init in interface YamcsService

Overrides:

init in class AbstractYamcsService

Parameters:

yamcsInstance - The yamcs instance, or null if this is a global service.

serviceName - The service name.

config - The configured arguments for this service. If YamcsService.getSpec() is implemented then this contains the arguments after being validated (including any defaults).

Throws:

InitException - When something goes wrong during the execution of this method.

getInstance

public static SystemParametersService getInstance(String instance)

doStart

public void doStart()

Specified by:

doStart in class com.google.common.util.concurrent.AbstractService

doStop

public void doStop()

Specified by:

doStop in class com.google.common.util.concurrent.AbstractService

run

public void run()

Run from the timer, collect all parameters and send them on the stream

Specified by:

run in interface Runnable

registerProducer

public void registerProducer(SystemParametersProducer p)

Register a parameter producer to be called each time the parameters are collected

unregisterProducer

public void unregisterProducer(SystemParametersProducer p)

Unregister producer - from now on it will not be invoked. Note that the collector collects parameters into a different thread taking all producer in turns, and there might be one collection already started when this method is called.

getNamespace

public String getNamespace()

this is the namespace all system parameters should be in

Returns:

the namespace to be used by the system parameters

createSystemParameter

public SystemParameter createSystemParameter(String relativeName,
 AggregateParameterType type,
 String description)

Creates a system parameter for an aggregate type.

If the type has no qualified name, one is set and is added to the MDB. Otherwise it is assumed it already comes from he MDB and it is not added.

Parameters:

relativeName -

type -

Returns:

createSystemParameter

public SystemParameter createSystemParameter(String relativeName,
 Yamcs.Value.Type basicType,
 UnitType unit,
 String description)

Create a system parameter for a basic value type. The created parameter will have a shared basic parameter type.

If the type is aggregate, the method createSystemParameter(String, AggregateParameterType, String) should be used after making an appropriate AggregateParameterType

Parameters:

relativeName - - the relative name of the parameter, can contain multiple subsystems but cannot start with "/"

basicType - - any type except aggregate and array

Returns:

createSystemParameter

public SystemParameter createSystemParameter(String relativeName,
 Yamcs.Value.Type basicType,
 String description)

createSystemParameter

public static SystemParameter createSystemParameter(Mdb mdb,
 String fqn,
 Value engValue)

createSystemParameter

public static SystemParameter createSystemParameter(Mdb mdb,
 String fqn,
 Value engValue,
 UnitType unit)

createSystemParameter

public static SystemParameter createSystemParameter(Mdb mdb,
 String fqn,
 Yamcs.Value.Type basicType,
 UnitType unit,
 String description)

createSystemParameter

public static SystemParameter createSystemParameter(Mdb mdb,
 String fqn,
 Yamcs.Value.Type basicType,
 String description)

createEnumeratedParameterType

public EnumeratedParameterType createEnumeratedParameterType(Class<? extends Enum<?>> enumClass)

createEnumeratedSystemParameter

public SystemParameter createEnumeratedSystemParameter(String relativeName,
 Class<? extends Enum<?>> enumClass,
 String description)

Creates an enumerated system parameter by deducing the possible enumeration states from the java enum.

createSystemParameterType

public static ParameterType createSystemParameterType(Mdb mdb,
 String name,
 Value v,
 UnitType unit)

getBasicType

public ParameterType getBasicType(Yamcs.Value.Type type)

getBasicType

public ParameterType getBasicType(Yamcs.Value.Type type,
 UnitType unit)

Create (if not already existing) a basic parameter type in the MDB and return it.

Basic type is everything except aggregate and arrays

Parameters:

type -

Returns:

getNewPv

public static ParameterValue getNewPv(Parameter parameter,
 long time)

getPV

public static ParameterValue getPV(Parameter parameter,
 long time,
 String v)

getPV

public static ParameterValue getPV(Parameter parameter,
 long time,
 double v)

getPV

public static ParameterValue getPV(Parameter parameter,
 long time,
 float v)

getPV

public static ParameterValue getPV(Parameter parameter,
 long time,
 boolean v)

getPV

public static ParameterValue getPV(Parameter parameter,
 long time,
 long v)

getUnsignedIntPV

public static ParameterValue getUnsignedIntPV(Parameter parameter,
 long time,
 int v)

getPV

public static <T extends Enum<T>> ParameterValue getPV(Parameter parameter,
 long time,
 T v)

getPV

public static ParameterValue getPV(Parameter parameter,
 long time,
 Value v)

getNewPv

@Deprecated
public static ParameterValue getNewPv(String fqn,
 long time)

Deprecated.

getPV

@Deprecated
public static ParameterValue getPV(String fqn,
 long time,
 String v)

Deprecated.

getPV

@Deprecated
public static ParameterValue getPV(String fqn,
 long time,
 double v)

Deprecated.

getPV

@Deprecated
public static ParameterValue getPV(String fqn,
 long time,
 float v)

Deprecated.

getPV

@Deprecated
public static ParameterValue getPV(String fqn,
 long time,
 boolean v)

Deprecated.

getPV

@Deprecated
public static ParameterValue getPV(String fqn,
 long time,
 long v)

Deprecated.

getUnsignedIntPV

@Deprecated
public static ParameterValue getUnsignedIntPV(String fqn,
 long time,
 int v)

Deprecated.

getPV

@Deprecated
public static ParameterValue getPV(String fqn,
 long time,
 Value v)

Deprecated.

getMdb

public Mdb getMdb()