hudson.remoting

Interface JarLoader

public interface JarLoader

Remoting interface to allow the other side to retrieve a jar file from the checksum advertised in ResourceImageInJar.

Channel exposes this as a remote property under the key OURS, then once retrieved we store it in a local property under THEIRS.

Since:

2.24

Author:

Kohsuke Kawaguchi

Field Summary

Fields

Modifier and Type	Field and Description
static String	OURS
static ChannelProperty<JarLoader>	THEIRS

Method Summary

Modifier and Type	Method and Description
boolean	isPresentOnRemote(hudson.remoting.Checksum sum) Used by the local side to see if the jar file of the given checksum is already present on the other side.
void	notifyJarPresence(long[] sums)
void	notifyJarPresence(long sum1, long sum2) Called by the other side to notify that they already own the jar file of the given checksum.
void	writeJarTo(long sum1, long sum2, OutputStream sink) Retrieve the jar file image.

Field Detail

OURS

static final String OURS

THEIRS

static final ChannelProperty<JarLoader> THEIRS

Method Detail

writeJarTo

void writeJarTo(long sum1,
                long sum2,
                OutputStream sink)
         throws IOException,
                InterruptedException

Retrieve the jar file image. This method is called by the other side to receive the jar file. This call implicitly has the effect of notifyJarPresence(long, long)

Parameters:

sink - This stream receives the jar file.

Throws:

InterruptedException - Since this is a remote call, if the calling thread gets interrupted while waiting for the completion of the call, this exception will be thrown.

IOException

notifyJarPresence

@Asynchronous
void notifyJarPresence(long sum1,
                                      long sum2)

Called by the other side to notify that they already own the jar file of the given checksum. This allows this side to send ResourceImageRef smartly by avoiding unnecessary image transport.

notifyJarPresence

@Asynchronous
void notifyJarPresence(long[] sums)

Parameters:

sums - Array of even length. sums[2i] and sumes[2i+1] are paired up and interpreted as one checksum.

isPresentOnRemote

boolean isPresentOnRemote(hudson.remoting.Checksum sum)

Used by the local side to see if the jar file of the given checksum is already present on the other side. Used to decide if the class file image gets sent to the remote or not.