net.openhft.chronicle.wire.channel

Class SystemContext

java.lang.Object

net.openhft.chronicle.wire.AbstractCommonMarshallable

net.openhft.chronicle.wire.SelfDescribingMarshallable

net.openhft.chronicle.wire.channel.SystemContext

All Implemented Interfaces:

net.openhft.chronicle.bytes.BytesMarshallable, net.openhft.chronicle.bytes.CommonMarshallable, net.openhft.chronicle.bytes.ReadBytesMarshallable, net.openhft.chronicle.bytes.WriteBytesMarshallable, net.openhft.chronicle.core.io.Resettable, Marshallable, ReadMarshallable, WriteMarshallable, WriteValue

public class SystemContext
extends SelfDescribingMarshallable

Encapsulates system-related information into a singleton object, such as: the number of available processors, host ID, host name, system up time, user's country and name, and the Java vendor and version.

The singleton instance is initialized with the system's current state. If deserialized from another host, the SystemContext object would contain the information of that host at the moment of serialization.

Field Summary

Fields

Modifier and Type	Field and Description
static SystemContext	INSTANCE

Fields inherited from interface net.openhft.chronicle.wire.WriteMarshallable

EMPTY

Fields inherited from interface net.openhft.chronicle.wire.ReadMarshallable

DISCARD

Constructor Summary

Constructors

Constructor and Description
SystemContext()

Method Summary

Modifier and Type	Method and Description
int	availableProcessors() Provides the number of available processors in the current system.
int	hostId() Provides the unique identifier for the host system.
String	hostName() Provides the name of the host system.
String	javaVendor() Provides the vendor information of the Java environment in the current system.
String	javaVersion() Provides the version of the Java environment in the current system.
long	upTime() Provides the system's up time in nanoseconds.
String	userCountry() Provides the user's country in the current system.
String	userName() Provides the username of the current user in the system.

Methods inherited from class net.openhft.chronicle.wire.SelfDescribingMarshallable

usesSelfDescribingMessage

Methods inherited from class net.openhft.chronicle.wire.AbstractCommonMarshallable

equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.openhft.chronicle.wire.Marshallable

$equals, $fieldInfoMap, $fieldInfos, $hashCode, $toString, className, copyTo, deepCopy, fromFile, fromFile, fromString, fromString, fromString, getField, getLongField, mergeToMap, readMarshallable, reset, setField, setLongField, streamFromFile, streamFromFile, writeMarshallable

Methods inherited from interface net.openhft.chronicle.wire.WriteMarshallable

binaryLengthLength, writeValue

Methods inherited from interface net.openhft.chronicle.wire.ReadMarshallable

unexpectedField

Methods inherited from interface net.openhft.chronicle.bytes.BytesMarshallable

$toString, readMarshallable, writeMarshallable

Field Detail

INSTANCE

public static final SystemContext INSTANCE

Constructor Detail

SystemContext

public SystemContext()

Method Detail

availableProcessors

public int availableProcessors()

Provides the number of available processors in the current system.

Returns:

Number of available processors.

hostId

public int hostId()

Provides the unique identifier for the host system.

Returns:

System's host ID.

hostName

public String hostName()

Provides the name of the host system.

Returns:

System's host name.

javaVendor

public String javaVendor()

Provides the vendor information of the Java environment in the current system.

Returns:

The Java environment vendor.

javaVersion

public String javaVersion()

Provides the version of the Java environment in the current system.

Returns:

The Java environment version.

upTime

public long upTime()

Provides the system's up time in nanoseconds.

Returns:

The system's up time in nanoseconds.

userCountry

public String userCountry()

Provides the user's country in the current system.

Returns:

The country code of the user.

userName

public String userName()

Provides the username of the current user in the system.

Returns:

The username of the current user.