org.apache.manifoldcf.connectorcommon.throttler

Class Throttler.StreamThrottler

java.lang.Object

org.apache.manifoldcf.connectorcommon.throttler.Throttler.StreamThrottler

All Implemented Interfaces:

IStreamThrottler

Enclosing class:

Throttler

protected static class Throttler.StreamThrottler
extends java.lang.Object
implements IStreamThrottler

Stream throttler implementation class. This basically stores some parameters and links back to ThrottlingGroup.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String[]	binNames
protected Throttler.ThrottlingGroup	parent

Fields inherited from interface org.apache.manifoldcf.connectorcommon.interfaces.IStreamThrottler

_rcsid

Constructor Summary

Constructors

Constructor and Description
StreamThrottler(Throttler.ThrottlingGroup parent, java.lang.String[] binNames)

Method Summary

Modifier and Type	Method and Description
void	closeStream() Note the stream being closed.
boolean	obtainReadPermission(int byteCount) Obtain permission to read a block of bytes.
boolean	obtainReadPermission(int byteCount, IBreakCheck breakCheck) Obtain permission to read a block of bytes.
void	releaseReadPermission(int origByteCount, int actualByteCount) Note the completion of the read of a block of bytes.

Methods inherited from class java.lang.Object

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

Field Detail

parent

protected final Throttler.ThrottlingGroup parent

binNames

protected final java.lang.String[] binNames

Constructor Detail

StreamThrottler

public StreamThrottler(Throttler.ThrottlingGroup parent,
                       java.lang.String[] binNames)

Method Detail

obtainReadPermission

public boolean obtainReadPermission(int byteCount)
                             throws java.lang.InterruptedException

Obtain permission to read a block of bytes. This method may wait until it is OK to proceed. The throttle group, bin names, etc are already known to this specific interface object, so it is unnecessary to include them here.

Specified by:

obtainReadPermission in interface IStreamThrottler

Parameters:

byteCount - is the number of bytes to get permissions to read.

Returns:

true if the wait took place as planned, or false if the system is being shut down.

Throws:

java.lang.InterruptedException

obtainReadPermission

public boolean obtainReadPermission(int byteCount,
                                    IBreakCheck breakCheck)
                             throws java.lang.InterruptedException,
                                    BreakException

Obtain permission to read a block of bytes. This method may wait until it is OK to proceed. The throttle group, bin names, etc are already known to this specific interface object, so it is unnecessary to include them here.

Specified by:

obtainReadPermission in interface IStreamThrottler

Parameters:

byteCount - is the number of bytes to get permissions to read.

breakCheck - is the break check object.

Returns:

true if the wait took place as planned, or false if the system is being shut down.

Throws:

java.lang.InterruptedException

BreakException

releaseReadPermission

public void releaseReadPermission(int origByteCount,
                                  int actualByteCount)

Note the completion of the read of a block of bytes. Call this after obtainReadPermission() was successfully called, and bytes were successfully read.

Specified by:

releaseReadPermission in interface IStreamThrottler

Parameters:

origByteCount - is the originally requested number of bytes to get permissions to read.

actualByteCount - is the number of bytes actually read.

closeStream

public void closeStream()

Note the stream being closed.

Specified by:

closeStream in interface IStreamThrottler