Naanou.ResourceExchange
Class Source.Manifest

Wraps up info about what part of a resource a particular source has

completeness

private int completeness

Percentage host has of file

discoveryMethod

private string discoveryMethod

fileSize

private long fileSize

likelyAltSources

private string[] likelyAltSources

preexisting

private bool preexisting

queriedOk

private bool queriedOk

ranges

private Naanou.ResourceExchange.ByteRange[] ranges

resource

private string resource

source

private Naanou.ResourceExchange.Source source

totalSize

private long totalSize

transferSpeed

private double transferSpeed

Last recorded bytes/s being read and written to disk

Source.Manifest

internal Source.Manifest(Naanou.ResourceExchange.Source source,
                         string resource,
                         Naanou.ResourceExchange.ByteRange[] ranges,
                         string discoveryMethod)

Constructor

Parameters:

resource - Resource hash

ranges - Ranges source has

discoveryMethod - Discovery method

source - Source

Completeness

public double Completeness

Completeness (percentage), or System.Double.NaN if unavailable, that this host has of the file

DiscoveryMethod

public string DiscoveryMethod

FileLength

public long FileLength

Gets the file length

PreExisting

public bool PreExisting

Was this source from preexisting knowledge

RangeCount

public int RangeCount

Gets the number of ranges this source has

Ranges

public Naanou.ResourceExchange.ByteRange[] Ranges

Gets the byte ranges that this source has (a copy)

If the record is preexisting, a query does not need to be done, although ranges on server may be different than what we know. Running a query in this case will update ranges. If a record is not preexisting (i.e. all we know about it is its url), a Query must be run before using this property.

Resource

public string Resource

Gets or sets the resource this source is for

Source

public Naanou.ResourceExchange.Source Source

Gets the source this manifest belongs to

TransferSpeed

public double TransferSpeed

Gets the speed of the transfer

Download

internal Naanou.ResourceExchange.Block Download(Naanou.ResourceExchange.Downloader downloader,
                                                Naanou.ResourceExchange.ResourceAvailRange range,
                                                Naanou.ResourceExchange.WorkStatusHandler statusCallback)

Download a range block from source. Closes off block when done, or deletes it if there was a problem.

Parameters:

downloader - Downloader

range - Range to get

statusCallback - Status callback (can be null)

Returns:

Block that contains range

GetLikelyAlternateSources

public string[] GetLikelyAlternateSources(int byteRangeIndex)

Gets a list of likely alternate sources for a byte range this source has

Parameters:

byteRangeIndex - Index

Returns:

Likely sources, or null

HasRange

public bool HasRange(Naanou.ResourceExchange.ByteRange range)

Has manifest got this range?

Parameters:

range -

Returns:

PaintRange

public void PaintRange(Naanou.ResourceExchange.ByteRange range,
                       long totalSize,
                       System.Drawing.Graphics g,
                       System.Drawing.Rectangle rect,
                       System.Drawing.Brush brush)

Paints status

Parameters:

range -

totalSize -

g -

rect -

brush -

PaintStatus

public void PaintStatus(System.Drawing.Graphics g,
                        System.Drawing.Rectangle rect)

Paints status

Parameters:

g -

rect -

Query

public void Query()

Attempts to identify how much of the resource this source has [blocking]

RangeAt

public Naanou.ResourceExchange.ByteRange RangeAt(int index)

Gets the range at the specified index

Parameters:

index -

Returns: