com.google.common.io

Class ByteSource.SlicedByteSource

java.lang.Object

com.google.common.io.ByteSource

com.google.common.io.ByteSource.SlicedByteSource

Enclosing class:

ByteSource

private final class ByteSource.SlicedByteSource
extends ByteSource

A view of a subsection of the containing byte source.

Field Summary

Fields

Modifier and Type	Field and Description
private long	length
private long	offset

Constructor Summary

Constructors

Modifier	Constructor and Description
private	SlicedByteSource(long offset, long length)

Method Summary

Modifier and Type	Method and Description
boolean	isEmpty() Returns whether the source has zero bytes.
java.io.InputStream	openBufferedStream() Opens a new buffered InputStream for reading from this source.
java.io.InputStream	openStream() Opens a new InputStream for reading from this source.
ByteSource	slice(long offset, long length) Returns a view of a slice of this byte source that is at most length bytes long starting at the given offset.
private java.io.InputStream	sliceStream(java.io.InputStream in)
java.lang.String	toString()

Methods inherited from class com.google.common.io.ByteSource

asCharSource, concat, concat, concat, contentEquals, copyTo, copyTo, empty, hash, read, read, size, wrap

Methods inherited from class java.lang.Object

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

Field Detail

offset

private final long offset

length

private final long length

Constructor Detail

SlicedByteSource

private SlicedByteSource(long offset,
                         long length)

Method Detail

openStream

public java.io.InputStream openStream()
                               throws java.io.IOException

Description copied from class: ByteSource

Opens a new InputStream for reading from this source. This method should return a new, independent stream each time it is called.

The caller is responsible for ensuring that the returned stream is closed.

Specified by:

openStream in class ByteSource

Throws:

java.io.IOException - if an I/O error occurs in the process of opening the stream

openBufferedStream

public java.io.InputStream openBufferedStream()
                                       throws java.io.IOException

Description copied from class: ByteSource

Opens a new buffered InputStream for reading from this source. The returned stream is not required to be a BufferedInputStream in order to allow implementations to simply delegate to ByteSource.openStream() when the stream returned by that method does not benefit from additional buffering (for example, a ByteArrayInputStream). This method should return a new, independent stream each time it is called.

The caller is responsible for ensuring that the returned stream is closed.

Overrides:

openBufferedStream in class ByteSource

Throws:

java.io.IOException - if an I/O error occurs in the process of opening the stream

sliceStream

private java.io.InputStream sliceStream(java.io.InputStream in)
                                 throws java.io.IOException

Throws:

java.io.IOException

slice

public ByteSource slice(long offset,
                        long length)

Description copied from class: ByteSource

Returns a view of a slice of this byte source that is at most length bytes long starting at the given offset.

Overrides:

slice in class ByteSource

isEmpty

public boolean isEmpty()
                throws java.io.IOException

Description copied from class: ByteSource

Returns whether the source has zero bytes. The default implementation is to open a stream and check for EOF.

Overrides:

isEmpty in class ByteSource

Throws:

java.io.IOException - if an I/O error occurs

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object