com.android.tools.build.apkzlib.zip.utils

Class ByteTracker

java.lang.Object

com.android.tools.build.apkzlib.zip.utils.ByteTracker

public class ByteTracker
extends java.lang.Object

Keeps track of used bytes allowing gauging memory usage.

Constructor Summary

Constructors

Constructor and Description
ByteTracker()

Method Summary

Modifier and Type	Method and Description
CloseableDelegateByteSource	fromSource(com.google.common.io.ByteSource source) Creates a new byte source from another byte source.
CloseableDelegateByteSource	fromStream(java.io.ByteArrayOutputStream stream) Creates a new byte source by snapshotting the provided stream.
CloseableDelegateByteSource	fromStream(java.io.InputStream stream) Creates a new byte source by fully reading an input stream.
long	getBytesUsed() Obtains the number of bytes currently used.
long	getMaxBytesUsed() Obtains the maximum number of bytes ever used by this tracker.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteTracker

public ByteTracker()

Method Detail

fromStream

public CloseableDelegateByteSource fromStream(@Nonnull
                                              java.io.InputStream stream)
                                       throws java.io.IOException

Creates a new byte source by fully reading an input stream.

Parameters:

stream - the input stream

Returns:

a byte source containing the cached data from the given stream

Throws:

java.io.IOException - failed to read the stream

fromStream

public CloseableDelegateByteSource fromStream(@Nonnull
                                              java.io.ByteArrayOutputStream stream)
                                       throws java.io.IOException

Creates a new byte source by snapshotting the provided stream.

Parameters:

stream - the stream with the data

Returns:

a byte source containing the cached data from the given stream

Throws:

java.io.IOException - failed to read the stream

fromSource

public CloseableDelegateByteSource fromSource(@Nonnull
                                              com.google.common.io.ByteSource source)
                                       throws java.io.IOException

Creates a new byte source from another byte source.

Parameters:

source - the byte source to copy data from

Returns:

the tracked byte source

Throws:

java.io.IOException - failed to read data from the byte source

getBytesUsed

public long getBytesUsed()

Obtains the number of bytes currently used.

Returns:

the number of bytes

getMaxBytesUsed

public long getMaxBytesUsed()

Obtains the maximum number of bytes ever used by this tracker.

Returns:

the number of bytes