Package hudson.remoting

Class JarCache

java.lang.Object

hudson.remoting.JarCache

Direct Known Subclasses:

JarCacheSupport

public abstract class JarCache
extends Object

Jar file cache.

The remoting library supports local jar file caching for the efficiency in remote class loading. The cache stores jar files sent by the other side, and identifies jars with MD5 checksums that uniquely identifies its content. This allows the cache to be reused by future channel sessions or other concurrent channel sessions.

Since:

2.24

Author:

Kohsuke Kawaguchi

Field Summary

Fields

Modifier and Type	Field	Description
static File	DEFAULT_NOWS_JAR_CACHE_LOCATION	Default JAR cache location for disabled workspace Manager.

Constructor Summary

Constructors

Constructor	Description
JarCache()

Method Summary

Modifier and Type	Method	Description
abstract CompletableFuture<URL>	resolve(Channel channel, long sum1, long sum2)	Looks up the jar in cache, and if not found, use JarLoader to retrieve it from the other side.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_NOWS_JAR_CACHE_LOCATION

public static final File DEFAULT_NOWS_JAR_CACHE_LOCATION

Default JAR cache location for disabled workspace Manager.

Constructor Detail

JarCache

public JarCache()

Method Detail

resolve

@NonNull
public abstract CompletableFuture<URL> resolve(@NonNull
                                               Channel channel,
                                               long sum1,
                                               long sum2)
                                        throws IOException,
                                               InterruptedException

Looks up the jar in cache, and if not found, use JarLoader to retrieve it from the other side.

This method must be concurrency-safe.

Parameters:

channel - Channel that needs this jar file.

Returns:

URL of the jar file.

Throws:

IOException

InterruptedException