com.google.cloud.tools.jib.cache

Class CacheWriter

java.lang.Object

com.google.cloud.tools.jib.cache.CacheWriter

public class CacheWriter
extends Object

Writes UnwrittenLayers to the cache.

Constructor Summary

Constructors

Constructor and Description
CacheWriter(Cache cache)

Method Summary

Modifier and Type	Method and Description
CachedLayer	getCachedLayer(DescriptorDigest layerDigest, com.google.common.io.CountingOutputStream countingOutputStream)
com.google.common.io.CountingOutputStream	getLayerOutputStream(DescriptorDigest layerDigest)
CachedLayer	writeLayer(LayerBuilder layerBuilder) Builds an UnwrittenLayer from a LayerBuilder and compresses and writes the UnwrittenLayer's uncompressed layer content BLOB to cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheWriter

public CacheWriter(Cache cache)

Method Detail

writeLayer

public CachedLayer writeLayer(LayerBuilder layerBuilder)
                       throws IOException,
                              LayerPropertyNotFoundException

Builds an UnwrittenLayer from a LayerBuilder and compresses and writes the UnwrittenLayer's uncompressed layer content BLOB to cache.

Parameters:

layerBuilder - the layer builder

Returns:

the cached layer

Throws:

IOException

LayerPropertyNotFoundException

getLayerOutputStream

public com.google.common.io.CountingOutputStream getLayerOutputStream(DescriptorDigest layerDigest)
                                                               throws IOException

Returns:

the CountingOutputStream to write to to cache a layer with the specified compressed digest

Throws:

IOException

getCachedLayer

public CachedLayer getCachedLayer(DescriptorDigest layerDigest,
                                  com.google.common.io.CountingOutputStream countingOutputStream)
                           throws IOException,
                                  LayerPropertyNotFoundException

Returns:

a CachedLayer from a layer digest and the CountingOutputStream the layer BLOB was written to

Throws:

IOException

LayerPropertyNotFoundException