org.fabric3.contribution.scanner.impl

Class ContributionDirectoryScanner

java.lang.Object

org.fabric3.contribution.scanner.impl.ContributionDirectoryScanner

All Implemented Interfaces:

java.lang.Runnable, org.fabric3.spi.runtime.event.Fabric3EventListener

public class ContributionDirectoryScanner
extends java.lang.Object
implements java.lang.Runnable, org.fabric3.spi.runtime.event.Fabric3EventListener

Scans deployment directories for contributions. In production mode, deployment directories will be scanned once at startup and any contained contributions will be deployed. In the default dynamic (non-production) mode, scanning will be periodic with support for adding, updating, and removing contributions. In dynamic mode, the scanner watches deployment directories at a fixed interval. Files are tracked as a FileSystemResource, which provides a consistent view across various types such as jars and exploded directories. Unknown file types are ignored. At the specified interval, removed files are determined by comparing the current directory contents with the contents from the previous pass. Changes or additions are also determined by comparing the current directory state with that of the previous pass. Detected changes and additions are cached for the following interval. Detected changes and additions from the previous interval are then compared using a timestamp to see if they have changed again. If so, they remain cached. If they have not changed, they are processed, contributed via the ContributionService, and deployed in the domain.

Constructor Summary

Constructors

Constructor and Description
ContributionDirectoryScanner(org.fabric3.api.host.contribution.ContributionService contributionService, org.fabric3.api.host.domain.Domain domain, FileSystemResourceFactoryRegistry registry, org.fabric3.spi.runtime.event.EventService eventService, org.fabric3.api.host.runtime.HostInfo hostInfo, ScannerMonitor monitor)

Method Summary

Modifier and Type	Method and Description
void	destroy()
void	init()
void	onEvent(org.fabric3.spi.runtime.event.Fabric3Event event)
void	run()
void	setDelay(long delay)
void	setProduction(boolean production)

Methods inherited from class java.lang.Object

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

Constructor Detail

ContributionDirectoryScanner

public ContributionDirectoryScanner(org.fabric3.api.host.contribution.ContributionService contributionService,
                                    org.fabric3.api.host.domain.Domain domain,
                                    FileSystemResourceFactoryRegistry registry,
                                    org.fabric3.spi.runtime.event.EventService eventService,
                                    org.fabric3.api.host.runtime.HostInfo hostInfo,
                                    ScannerMonitor monitor)

Method Detail

setProduction

public void setProduction(boolean production)

setDelay

public void setDelay(long delay)

init

public void init()

destroy

public void destroy()

onEvent

public void onEvent(org.fabric3.spi.runtime.event.Fabric3Event event)

Specified by:

onEvent in interface org.fabric3.spi.runtime.event.Fabric3EventListener

run

public void run()

Specified by:

run in interface java.lang.Runnable