com.sun.media.jfxmedia.locator

Class ConnectionHolder.FileConnectionHolder

java.lang.Object

com.sun.media.jfxmedia.locator.ConnectionHolder

com.sun.media.jfxmedia.locator.ConnectionHolder.FileConnectionHolder

Enclosing class:

ConnectionHolder

private static class ConnectionHolder.FileConnectionHolder
extends ConnectionHolder

Field Summary

Fields

Modifier and Type	Field and Description
private java.io.RandomAccessFile	file

Fields inherited from class com.sun.media.jfxmedia.locator.ConnectionHolder

buffer, channel

Constructor Summary

Constructors

Constructor and Description
FileConnectionHolder(java.net.URI uri)

Method Summary

Modifier and Type	Method and Description
void	closeConnection() Closes connection when done.
(package private) boolean	isRandomAccess() Detects whether the source is a random access source.
(package private) boolean	isSeekable() Detects whether the source is seekable.
(package private) boolean	needBuffer() Detects whether this source needs buffering at the pipeline level.
private java.nio.channels.ReadableByteChannel	openFile(java.net.URI uri)
(package private) int	readBlock(long position, int size) Reads a block of data from the arbitrary position of the opened stream.
long	seek(long position) Performs a seek request to the desired position.

Methods inherited from class com.sun.media.jfxmedia.locator.ConnectionHolder

createFileConnectionHolder, createHLSConnectionHolder, createMemoryConnectionHolder, createURIConnectionHolder, getBuffer, getStreamSize, property, readNextBlock

Methods inherited from class java.lang.Object

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

Field Detail

file

private java.io.RandomAccessFile file

Constructor Detail

FileConnectionHolder

FileConnectionHolder(java.net.URI uri)
              throws java.io.IOException

Throws:

java.io.IOException

Method Detail

needBuffer

boolean needBuffer()

Description copied from class: ConnectionHolder

Detects whether this source needs buffering at the pipeline level. When true the pipeline contains progressbuffer after the source.

Specified by:

needBuffer in class ConnectionHolder

Returns:

true if the source needs a buffer, false otherwise.

isRandomAccess

boolean isRandomAccess()

Description copied from class: ConnectionHolder

Detects whether the source is a random access source. If the method returns true then the source is capable of working in pull mode. To be able to work in pull mode holder must provide implementation.

Specified by:

isRandomAccess in class ConnectionHolder

Returns:

true is the source is random access, false otherwise.

isSeekable

boolean isSeekable()

Description copied from class: ConnectionHolder

Detects whether the source is seekable.

Specified by:

isSeekable in class ConnectionHolder

Returns:

true if the source is seekable, false otherwise.

seek

public long seek(long position)

Description copied from class: ConnectionHolder

Performs a seek request to the desired position.

Specified by:

seek in class ConnectionHolder

Returns:

-1 if the seek request failed or new stream position

readBlock

int readBlock(long position,
              int size)
       throws java.io.IOException

Description copied from class: ConnectionHolder

Reads a block of data from the arbitrary position of the opened stream.

Specified by:

readBlock in class ConnectionHolder

Returns:

The number of bytes read, possibly zero, or -1 if the given position is greater than or equal to the file's current size.

Throws:

java.nio.channels.ClosedChannelException - if an attempt is made to read after closeConnection has been called

java.io.IOException

openFile

private java.nio.channels.ReadableByteChannel openFile(java.net.URI uri)
                                                throws java.io.IOException

Throws:

java.io.IOException

closeConnection

public void closeConnection()

Description copied from class: ConnectionHolder

Closes connection when done. Overriding methods should call this method in the beginning of their implementation.

Overrides:

closeConnection in class ConnectionHolder