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## org.hyperic.hq.autoinventory
Class ScanManager

    java.lang.Object
      org.hyperic.hq.autoinventory.ScanManager

All Implemented Interfaces:
  ScanListener

    public class ScanManager

extends Object
implements ScanListener

The ScanManager controls the Scanner and ensures that only 1 scan is running at a time. If someone tries to start a scan while another scan is running, we'll cue up that scan to run immediately after the current scan completes.

Constructor Summary
`ScanManager(ScanListener listener, AutoinventoryPluginManager apm, RuntimeScanner rtScanner, org.hyperic.util.AutoApproveConfig autoApproveConfig)` Create a scan manager.

Method Summary
`ScanState` | `getStatus()` Get the status of the currently running scan.
`void` | `interruptHangingScan()`
`boolean` | `isScanQueued()`
`boolean` | `isScanRunning()`
`boolean` | `queueScan(ScanConfiguration scanConfig)` Start a new scan, using the specified scan configuration.
`void` | `scanComplete(ScanState state)` The scanner calls this method when the scan has completed.
`void` | `shutdown(long timeout)` Stop the ScanManager.
`void` | `startup()` Startup the ScanManager.
`boolean` | `stopScan()` Stops the currently running scan.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### ScanManager

    public ScanManager(ScanListener listener,
                       AutoinventoryPluginManager apm,
                       RuntimeScanner rtScanner,
                       org.hyperic.util.AutoApproveConfig autoApproveConfig)

  Create a scan manager.

  Parameters:
    `listener` - The ScanListener to be notified when scans complete.
    `log` - The log to use.
    `apm` - The Autoinventory plugin manager to use for loading platform and server detectors.
    `rtScanner` - The RuntimeScanner to use for runtime scans. This can be null if no runtime scans are to be performed.

Method Detail

### startup

    public void startup()

  Startup the ScanManager. This fires off a Thread that manages the scan queue.

### shutdown

    public void shutdown(long timeout)

  Stop the ScanManager. Any currently running scan will be stopped.

  Parameters:
    `timeout` - How long to wait for the ScanManager to gracefully exit before Thread.stop-ing it.

### queueScan

    public boolean queueScan(ScanConfiguration scanConfig)

  Start a new scan, using the specified scan configuration.

  Parameters:
    `scanConfig` - The configuration to use for the scan.
  Returns:
    true if a scan with an identical configuration has already been scheduled, false if this is a new configuration not yet scheduled.

### interruptHangingScan

    public void interruptHangingScan()

### stopScan

    public boolean stopScan()
                     throws AutoinventoryException

  Stops the currently running scan.

  Returns:
    true if a scan was actually running and was interrupted, false otherwise.
  Throws:
    `AutoinventoryException`

### getStatus

    public ScanState getStatus()

  Get the status of the currently running scan.

  Returns:
    A ScanState object representing the current status of the running scan.

### isScanRunning

    public boolean isScanRunning()

  Returns:
    true if there is a scan currently running, false otherwise.

### isScanQueued

    public boolean isScanQueued()

### scanComplete

    public void scanComplete(ScanState state)
                      throws AutoinventoryException,
                             org.hyperic.hq.common.SystemException

  Description copied from interface: `ScanListener`
  The scanner calls this method when the scan has completed. This method is called whenever the scan completes, for ANY reason (including partial errors and fatal errors). It is the responsbility of the class that implements this interface to investigate the Scanner's ScanState object to determine how the scan completed and take the appropriate course of action.

  Specified by:
    `scanComplete` in interface `ScanListener`
  Parameters:
    `state` - The final state of the scan. This object is provided for convenience, as the class implementing this interface will likely already have a way to get to it.
  Throws:
    `AutoinventoryException`
    `org.hyperic.hq.common.SystemException`

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