public class LocallyCachedTopologyBlob extends LocallyCachedBlob
A locally cached blob for the topology. storm.jar, stormcode.ser, or stormconf.ser. The version number of the blob’s file will be stored in ${basename}.version
Modifier and Type | Class and Description |
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static class |
LocallyCachedTopologyBlob.TopologyBlobType |
Modifier and Type | Field and Description |
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static long |
LOCAL_MODE_JAR_VERSION |
NOT_DOWNLOADED_VERSION
Modifier | Constructor and Description |
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protected |
LocallyCachedTopologyBlob(String topologyId,
boolean isLocalMode,
Map<String,Object> conf,
AdvancedFSOps fsOps,
LocallyCachedTopologyBlob.TopologyBlobType type,
String owner,
StormMetricsRegistry metricsRegistry)
Create a new LocallyCachedBlob.
|
Modifier and Type | Method and Description |
---|---|
void |
cleanupOrphanedData()
Clean up any temporary files.
|
protected void |
commitNewVersion(long newVersion)
Commit the new version and make it available for the end user.
|
void |
completelyRemove()
Completely remove anything that is cached locally for this blob and all tracking files also stored for it.
|
boolean |
equals(Object other) |
protected void |
extractDirFromJar(String jarpath,
String dir,
Path dest) |
long |
fetchUnzipToTemp(ClientBlobStore store)
Download the latest version to a temp location.
|
long |
getLocalVersion()
Get the version of the blob cached locally.
|
long |
getRemoteVersion(ClientBlobStore store)
Get the version of the blob in the blob store.
|
long |
getSizeOnDisk()
Get the amount of disk space that is used by this blob.
|
int |
hashCode() |
boolean |
isFullyDownloaded() |
String |
toString() |
addReference, fetch, getDependencies, getKey, getLastUsed, getSizeOnDisk, informReferencesAndCommitNewVersion, isUsed, removeReference, touch
public static final long LOCAL_MODE_JAR_VERSION
protected LocallyCachedTopologyBlob(String topologyId, boolean isLocalMode, Map<String,Object> conf, AdvancedFSOps fsOps, LocallyCachedTopologyBlob.TopologyBlobType type, String owner, StormMetricsRegistry metricsRegistry) throws IOException
Create a new LocallyCachedBlob.
topologyId
- the ID of the topology.type
- the type of the blob.owner
- the name of the user that owns this blob.IOException
public long getLocalVersion()
LocallyCachedBlob
Get the version of the blob cached locally. If the version is unknown or it has not been downloaded NOT_DOWNLOADED_VERSION should be returned. PRECONDITION: this can only be called with a lock on this instance held.
getLocalVersion
in class LocallyCachedBlob
public long getRemoteVersion(ClientBlobStore store) throws KeyNotFoundException, AuthorizationException
LocallyCachedBlob
Get the version of the blob in the blob store. PRECONDITION: this can only be called with a lock on this instance held.
getRemoteVersion
in class LocallyCachedBlob
KeyNotFoundException
AuthorizationException
public long fetchUnzipToTemp(ClientBlobStore store) throws IOException, KeyNotFoundException, AuthorizationException
LocallyCachedBlob
Download the latest version to a temp location. This may also include unzipping some or all of the data to a temp location. PRECONDITION: this can only be called with a lock on this instance held.
fetchUnzipToTemp
in class LocallyCachedBlob
store
- the store to us to download the data.IOException
KeyNotFoundException
AuthorizationException
protected void extractDirFromJar(String jarpath, String dir, Path dest) throws IOException
IOException
public boolean isFullyDownloaded()
isFullyDownloaded
in class LocallyCachedBlob
protected void commitNewVersion(long newVersion) throws IOException
LocallyCachedBlob
Commit the new version and make it available for the end user. PRECONDITION: uncompressToTempLocationIfNeeded will have been called. PRECONDITION: this can only be called with a lock on this instance held.
commitNewVersion
in class LocallyCachedBlob
newVersion
- the version of the blob to commit.IOException
public void cleanupOrphanedData() throws IOException
LocallyCachedBlob
Clean up any temporary files. This will be called after updating a blob, either successfully or if an error has occured. The goal is to find any files that may be left over and remove them so space is not leaked. PRECONDITION: this can only be called with a lock on this instance held.
cleanupOrphanedData
in class LocallyCachedBlob
IOException
public void completelyRemove() throws IOException
LocallyCachedBlob
Completely remove anything that is cached locally for this blob and all tracking files also stored for it. This will be called after the blob was determined to no longer be needed in the cache. PRECONDITION: this can only be called with a lock on this instance held.
completelyRemove
in class LocallyCachedBlob
IOException
public long getSizeOnDisk()
LocallyCachedBlob
Get the amount of disk space that is used by this blob. If the blob is uncompressed it should be the sum of the space used by all of the uncompressed files. In general this will not be called with any locks held so it is a good idea to cache it and updated it when committing a new version.
getSizeOnDisk
in class LocallyCachedBlob
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