com.android.tools.build.apkzlib.zip.compress

Class ExecutorCompressor

java.lang.Object

com.android.tools.build.apkzlib.zip.compress.ExecutorCompressor

All Implemented Interfaces:

Compressor

Direct Known Subclasses:

BestAndDefaultDeflateExecutorCompressor, DeflateExecutionCompressor

public abstract class ExecutorCompressor
extends java.lang.Object
implements Compressor

A synchronous compressor is a compressor that computes the result of compression immediately and never returns an uncomputed future object.

Constructor Summary

Constructors

Constructor and Description
ExecutorCompressor(java.util.concurrent.Executor executor) Compressor that delegates execution into the given executor.

Method Summary

Modifier and Type	Method and Description
com.google.common.util.concurrent.ListenableFuture<CompressionResult>	compress(CloseableByteSource source, ByteStorage storage) Compresses an entry source.
protected abstract CompressionResult	immediateCompress(CloseableByteSource source, ByteStorage storage) Immediately compresses a source.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutorCompressor

public ExecutorCompressor(java.util.concurrent.Executor executor)

Compressor that delegates execution into the given executor.

Parameters:

executor - the executor that will do the compress

Method Detail

compress

public com.google.common.util.concurrent.ListenableFuture<CompressionResult> compress(CloseableByteSource source,
                                                                                      ByteStorage storage)

Description copied from interface: Compressor

Compresses an entry source.

Specified by:

compress in interface Compressor

Parameters:

source - the source to compress

storage - a byte storage from where the compressor can obtain byte sources to work

Returns:

a future that will eventually contain the compression result

immediateCompress

protected abstract CompressionResult immediateCompress(CloseableByteSource source,
                                                       ByteStorage storage)
                                                throws java.lang.Exception

Immediately compresses a source.

Parameters:

source - the source to compress

storage - a byte storage where the compressor can obtain data sources from

Returns:

the result of compression

Throws:

java.lang.Exception - failed to compress