Package com.google.gerrit.server.patch.filediff

Class FileDiffCacheImpl

java.lang.Object

com.google.gerrit.server.patch.filediff.FileDiffCacheImpl

All Implemented Interfaces:

FileDiffCache

public class FileDiffCacheImpl
extends Object
implements FileDiffCache

Cache for the single file diff between two commits for a single file path. This cache adds extra Gerrit logic such as identifying edits due to rebase.

If the FileDiffCacheKey.oldCommit() is equal to Constants.EMPTY_TREE_ID, the git diff will be evaluated against the empty tree.

Constructor Summary

Constructors

Constructor	Description
FileDiffCacheImpl(com.google.common.cache.LoadingCache<FileDiffCacheKey,FileDiffOutput> cache)

Method Summary

Modifier and Type	Method	Description
FileDiffOutput	get(FileDiffCacheKey key)	Returns the file diff for a single file path identified by its key.
com.google.common.collect.ImmutableMap<FileDiffCacheKey,FileDiffOutput>	getAll(Iterable<FileDiffCacheKey> keys)	Returns the file diff for a collection of file paths identified by their keys.
static com.google.inject.Module	module()

Methods inherited from class java.lang.Object

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

Constructor Detail

FileDiffCacheImpl

@Inject
public FileDiffCacheImpl(com.google.common.cache.LoadingCache<FileDiffCacheKey,FileDiffOutput> cache)

Method Detail

module

public static com.google.inject.Module module()

get

public FileDiffOutput get(FileDiffCacheKey key)
                   throws DiffNotAvailableException

Description copied from interface: FileDiffCache

Returns the file diff for a single file path identified by its key.

Specified by:

get in interface FileDiffCache

Parameters:

key - identifies two git commits, a specific file path and other diff parameters.

Returns:

the file diff for a single file path identified by its key.

Throws:

DiffNotAvailableException - if the commit IDs of the key are invalid for this project or if file contents could not be read.

getAll

public com.google.common.collect.ImmutableMap<FileDiffCacheKey,FileDiffOutput> getAll(Iterable<FileDiffCacheKey> keys)
                                                                                     throws DiffNotAvailableException

Description copied from interface: FileDiffCache

Returns the file diff for a collection of file paths identified by their keys.

Specified by:

getAll in interface FileDiffCache

Parameters:

keys - identifying different file paths of different projects.

Returns:

a map of the input keys to their corresponding git file diffs.

Throws:

DiffNotAvailableException - if the diff failed to be evaluated for one or more of the input keys due to invalid commit IDs or if file contents could not be read.