org.eclipse.smila.taskworker.io
Class IODataObject

java.lang.Object
  org.eclipse.smila.taskworker.io.IODataObject

Direct Known Subclasses:

Input, Output

public abstract class IODataObject
extends java.lang.Object

common base class of input/output wrappers. Apart from containing the defining BulkInfo object and providing access to the bulk store, it does some basic IO duration measuring.

Field Summary

protected ObjectStoreService

_objectStore reference of objectstore service.

Constructor Summary

IODataObject(BulkInfo dataObject, ObjectStoreService objectStore)
create instance.

Method Summary

protected void	ensureStore() open store, retry on IOErrors.
java.util.Map<java.lang.String,java.lang.Number>	getCounter() create basic counter map.
BulkInfo	getDataObject()
long	getDurationOpen()
long	getDurationPerform()
java.lang.String	getObjectName()
ObjectStoreService	getObjectStore()
java.lang.String	getStoreName()
protected long	startTime()
protected void	timeOpen(long startTime) measure time for opening data object.
protected void	timePerform(long startTime) measure time for performing IO on data object.

Methods inherited from class java.lang.Object

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

Field Detail

_objectStore

protected final ObjectStoreService _objectStore

reference of objectstore service.

Constructor Detail

IODataObject

public IODataObject(BulkInfo dataObject,
                    ObjectStoreService objectStore)

create instance.

Method Detail

getDataObject

public BulkInfo getDataObject()

Returns:

wrapped data object.

getStoreName

public java.lang.String getStoreName()

Returns:

store name part of wrapped data object.

getObjectName

public java.lang.String getObjectName()

Returns:

object ID part of wrapped data object.

getObjectStore

public ObjectStoreService getObjectStore()

Returns:

reference to objectstore service.

ensureStore

protected void ensureStore()
                    throws ObjectStoreException

open store, retry on IOErrors.

Throws:

ObjectStoreException

getCounter

public java.util.Map<java.lang.String,java.lang.Number> getCounter()

create basic counter map.

getDurationOpen

public long getDurationOpen()

Returns:

duration needed to open the data object.

getDurationPerform

public long getDurationPerform()

Returns:

duration needed to perform IO operations on the data object.

startTime

protected long startTime()

Returns:

current timestamp.

timeOpen

protected void timeOpen(long startTime)

measure time for opening data object.

timePerform

protected void timePerform(long startTime)

measure time for performing IO on data object.