Package aQute.bnd.build

Class DownloadBlocker

java.lang.Object

aQute.bnd.build.DownloadBlocker

All Implemented Interfaces:

RepositoryPlugin.DownloadListener

public class DownloadBlocker
extends java.lang.Object
implements RepositoryPlugin.DownloadListener

This class is intended to be used by the users of a RepositoryPlugin. The RepositoryPlugin.get(String, aQute.bnd.version.Version, java.util.Map, aQute.bnd.service.RepositoryPlugin.DownloadListener...) method takes one or more Download Listeners. These are called back with the success or failure of a download. This class is a simple implementation of this model, just call getReason() and it blocks until success or failure is called.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DownloadBlocker.Stage

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.Map<java.lang.String,java.lang.String>	attrs
private java.lang.String	failure
private java.io.File	file
private static org.slf4j.Logger	logger
private Reporter	reporter
private java.util.concurrent.CountDownLatch	resolved
private DownloadBlocker.Stage	stage

Constructor Summary

Constructors

Constructor	Description
DownloadBlocker(Reporter reporter)

Method Summary

Modifier and Type	Method	Description
void	failure(java.io.File file, java.lang.String reason)	Called when the file could not be downloaded from a remote repository.
java.util.Map<java.lang.String,java.lang.String>	getAttributes()
java.io.File	getFile()
java.lang.String	getReason()	Return a failure reason or null.
DownloadBlocker.Stage	getStage()	Return the stage we're in
boolean	progress(java.io.File file, int percentage)	Can be called back regularly before success/failure but never after.
void	success(java.io.File file)	Called when the file is successfully downloaded from a remote repository.
void	success(java.io.File file, java.util.Map<java.lang.String,java.lang.String> attrs)	Called when the file is successfully downloaded from a remote repository.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static final org.slf4j.Logger logger

stage

private volatile DownloadBlocker.Stage stage

failure

private java.lang.String failure

file

private java.io.File file

attrs

private java.util.Map<java.lang.String,java.lang.String> attrs

reporter

private final Reporter reporter

resolved

private final java.util.concurrent.CountDownLatch resolved

Constructor Detail

DownloadBlocker

public DownloadBlocker(Reporter reporter)

Method Detail

success

public void success(java.io.File file)
             throws java.lang.Exception

Description copied from interface: RepositoryPlugin.DownloadListener

Called when the file is successfully downloaded from a remote repository.

Specified by:

success in interface RepositoryPlugin.DownloadListener

Parameters:

file - The file that was downloaded

Throws:

java.lang.Exception - , are logged and ignored

success

public void success(java.io.File file,
                    java.util.Map<java.lang.String,java.lang.String> attrs)
             throws java.lang.Exception

Description copied from interface: RepositoryPlugin.DownloadListener

Called when the file is successfully downloaded from a remote repository.

Specified by:

success in interface RepositoryPlugin.DownloadListener

Parameters:

file - The file that was downloaded

attrs - Additional attributes about the file. This may include maven coordinates.

Throws:

java.lang.Exception - , are logged and ignored

failure

public void failure(java.io.File file,
                    java.lang.String reason)
             throws java.lang.Exception

Description copied from interface: RepositoryPlugin.DownloadListener

Called when the file could not be downloaded from a remote repository.

Specified by:

failure in interface RepositoryPlugin.DownloadListener

Parameters:

file - The file that was intended to be downloaded.

Throws:

java.lang.Exception - , are logged and ignored

progress

public boolean progress(java.io.File file,
                        int percentage)
                 throws java.lang.Exception

Description copied from interface: RepositoryPlugin.DownloadListener

Can be called back regularly before success/failure but never after. Indicates how far the download has progressed in percents. Since downloads can be restarted, it is possible that the percentage decreases.

Specified by:

progress in interface RepositoryPlugin.DownloadListener

Parameters:

file - The file that was intended to be downloaded

percentage - Percentage of file downloaded (can go down)

Returns:

true if the download should continue, fails if it should be canceled (and fail)

Throws:

java.lang.Exception - , are logged and ignored

getReason

public java.lang.String getReason()

Return a failure reason or null. This method will block until either success(File) or failure(File, String) has been called. It can be called many times.

Returns:

null or a reason for a failure

getStage

public DownloadBlocker.Stage getStage()

Return the stage we're in

Returns:

the current stage

getFile

public java.io.File getFile()

getAttributes

public java.util.Map<java.lang.String,java.lang.String> getAttributes()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object