HarvestJobGenerator (NetarchiveSuite 7.0 API)

java.lang.Object
- dk.netarkivet.harvester.scheduler.HarvestJobGenerator

All Implemented Interfaces:

ComponentLifeCycle
```
public class HarvestJobGenerator
extends java.lang.Object
implements ComponentLifeCycle
```
Handles the generation of new jobs based on the harvest definitions in persistent storage. The HarvestJobGenerator continuously scans the harvest definition database for harvest which should be run now. If a HD defines a harvest which should be run, a Harvest Job is created in the harvest job database.

Field Summary

Fields
Modifier and Type	Field	Description
`protected static java.util.Set<java.lang.Long>`	`harvestDefinitionsBeingScheduled`	The set of HDs (or rather their OIDs) that are currently being scheduled in a separate thread.
`protected static java.util.Map<java.lang.Long,java.lang.Long>`	`schedulingStartedMap`	Used the store the currenttimeMillis when the scheduling of a particular harvestdefinition # started or when last a warning was issued.
`protected static java.util.Map<java.lang.Long,dk.netarkivet.harvester.scheduler.HarvestJobGenerator.JobGeneratorTask.JobGeneratorThread>`	`threadMap`	A map giving access to the thread generating jobs for a given harvest definition.

Constructor Summary

Constructors
Constructor Description

HarvestJobGenerator(HarvestChannelRegistry harvestChannelRegistry)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

void shutdown()
The inverse of the start() method.

void start()
Starts the job generation scheduler.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - harvestDefinitionsBeingScheduled
```
protected static java.util.Set<java.lang.Long> harvestDefinitionsBeingScheduled
```
    The set of HDs (or rather their OIDs) that are currently being scheduled in a separate thread. This set is a SynchronizedSet
  - threadMap
```
protected static java.util.Map<java.lang.Long,dk.netarkivet.harvester.scheduler.HarvestJobGenerator.JobGeneratorTask.JobGeneratorThread> threadMap
```
    A map giving access to the thread generating jobs for a given harvest definition.
  - schedulingStartedMap
```
protected static java.util.Map<java.lang.Long,java.lang.Long> schedulingStartedMap
```
    Used the store the currenttimeMillis when the scheduling of a particular harvestdefinition # started or when last a warning was issued.
- Constructor Detail
  - HarvestJobGenerator
```
public HarvestJobGenerator(HarvestChannelRegistry harvestChannelRegistry)
```
- Method Detail
  - start
```
public void start()
```
    Starts the job generation scheduler.
    
    Specified by:
    
    start in interface ComponentLifeCycle
  - shutdown
```
public void shutdown()
```
    Description copied from interface: ComponentLifeCycle
    
    The inverse of the start() method. Contains functionality for deallocation of ressources, clearing data, closing connections, stopping threads, etc
    
    Specified by:
    
    shutdown in interface ComponentLifeCycle