java.lang.Object
- org.dspace.servicemanager.DSpaceKernelImpl

All Implemented Interfaces:

DynamicMBean, CommonLifecycle<DSpaceKernel>, DSpaceKernel
```
public final class DSpaceKernelImpl
extends Object
implements DSpaceKernel, DynamicMBean
```
This is the kernel implementation which starts up the core of DSpace, registers the mbean, and initializes the DSpace object. It also loads up the configuration. Sets a JRE shutdown hook.
Note that this does not start itself and calling the constuctor does not actually start it up either. It has to be explicitly started by calling the start method so something in the system needs to do that. If the bean is already started then calling start on it again has no effect.
The name of this instance can be specified if desired.

Author:

Aaron Zeckoski (azeckoski @ gmail.com)

Field Summary
- Fields inherited from interface org.dspace.kernel.DSpaceKernel
  KERNEL_NAME, MBEAN_NAME, MBEAN_PREFIX, MBEAN_SUFFIX

Constructor Summary

Constructors
Modifier Constructor Description

protected DSpaceKernelImpl(String name)
Creates a DSpace Kernel, does not do any checks though.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`destroy()`	Destroy the managed bean entirely.
`protected void`	`doDestroy()`	Called from within the shutdown thread.
`protected void`	`finalize()`
`Object`	`getAttribute(String attribute)`
`AttributeList`	`getAttributes(String[] attributes)`
`ConfigurationService`	`getConfigurationService()`
`Date`	`getLastLoadDate()`	Time that this kernel was started, as a java.util.Date.
`long`	`getLoadTime()`	Time that this kernel was started, as seconds since the epoch.
`DSpaceKernel`	`getManagedBean()`	Gets a reference to the bean that is being managed inside this lifecycle.
`MBeanInfo`	`getMBeanInfo()`
`String`	`getMBeanName()`
`ServiceManager`	`getServiceManager()`
`Object`	`invoke(String actionName, Object[] params, String[] signature)`
`boolean`	`isRunning()`
`protected void`	`registerShutdownHook()`
`void`	`setAttribute(Attribute attribute)`
`AttributeList`	`setAttributes(AttributeList attributes)`
`void`	`start()`	Starts the bean.
`void`	`start(String dspaceHome)`	This starts up the entire core system.
`void`	`stop()`	Stops the bean.
`String`	`toString()`

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

- Constructor Detail
  - DSpaceKernelImpl
```
protected DSpaceKernelImpl(String name)
```
    Creates a DSpace Kernel, does not do any checks though. Do not call this; use DSpaceKernelInit.getKernel(String).
    
    Parameters:
    
    name - the name for the kernel
- Method Detail
  - registerShutdownHook
```
protected void registerShutdownHook()
```
  - getConfigurationService
```
public ConfigurationService getConfigurationService()
```
    Specified by:
    
    getConfigurationService in interface DSpaceKernel
    
    Returns:
    
    the DSpace configuration service for this Kernel
  - getServiceManager
```
public ServiceManager getServiceManager()
```
    Specified by:
    
    getServiceManager in interface DSpaceKernel
    
    Returns:
    
    the DSpace service manager instance for this Kernel
  - getMBeanName
```
public String getMBeanName()
```
    Specified by:
    
    getMBeanName in interface DSpaceKernel
    
    Returns:
    
    the unique MBean name of this DSpace Kernel
  - isRunning
```
public boolean isRunning()
```
    Specified by:
    
    isRunning in interface DSpaceKernel
    
    Returns:
    
    true if this Kernel is started and running
  - getManagedBean
```
public DSpaceKernel getManagedBean()
```
    Description copied from interface: CommonLifecycle
    
    Gets a reference to the bean that is being managed inside this lifecycle.
    
    Specified by:
    
    getManagedBean in interface CommonLifecycle<DSpaceKernel>
    
    Returns:
    
    the managed object
  - start
```
public void start()
```
    Description copied from interface: CommonLifecycle
    
    Starts the bean. This initializes and causes the object to begin functioning. Should not happen automatically when the object is created.
    
    Specified by:
    
    start in interface CommonLifecycle<DSpaceKernel>
  - start
```
public void start(String dspaceHome)
```
    This starts up the entire core system. May be called more than once: subsequent calls return without effect.
    
    Parameters:
    
    dspaceHome - path to DSpace home directory
  - stop
```
public void stop()
```
    Description copied from interface: CommonLifecycle
    
    Stops the bean. This turns the object off and causes related things to be shutdown. Object should be able to be started again.
    
    Specified by:
    
    stop in interface CommonLifecycle<DSpaceKernel>
  - destroy
```
public void destroy()
```
    Description copied from interface: CommonLifecycle
    
    Destroy the managed bean entirely. It will be stopped first if not stopped and cannot be started again afterwards.
    
    Specified by:
    
    destroy in interface CommonLifecycle<DSpaceKernel>
  - doDestroy
```
protected void doDestroy()
```
    Called from within the shutdown thread.
  - finalize
```
protected void finalize()
                 throws Throwable
```
    Overrides:
    
    finalize in class Object
    
    Throws:
    
    Throwable
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getLastLoadDate
```
public Date getLastLoadDate()
```
    Time that this kernel was started, as a java.util.Date.
    
    Returns:
    
    date object
  - getLoadTime
```
public long getLoadTime()
```
    Time that this kernel was started, as seconds since the epoch.
    
    Returns:
    
    seconds since epoch (as a long)
  - invoke
```
public Object invoke(String actionName,
                     Object[] params,
                     String[] signature)
              throws MBeanException,
                     ReflectionException
```
    Specified by:
    
    invoke in interface DynamicMBean
    
    Throws:
    
    MBeanException
    
    ReflectionException
  - getMBeanInfo
```
public MBeanInfo getMBeanInfo()
```
    Specified by:
    
    getMBeanInfo in interface DynamicMBean
  - getAttribute
```
public Object getAttribute(String attribute)
                    throws AttributeNotFoundException,
                           MBeanException,
                           ReflectionException
```
    Specified by:
    
    getAttribute in interface DynamicMBean
    
    Throws:
    
    AttributeNotFoundException
    
    MBeanException
    
    ReflectionException
  - getAttributes
```
public AttributeList getAttributes(String[] attributes)
```
    Specified by:
    
    getAttributes in interface DynamicMBean
  - setAttribute
```
public void setAttribute(Attribute attribute)
                  throws AttributeNotFoundException,
                         InvalidAttributeValueException,
                         MBeanException,
                         ReflectionException
```
    Specified by:
    
    setAttribute in interface DynamicMBean
    
    Throws:
    
    AttributeNotFoundException
    
    InvalidAttributeValueException
    
    MBeanException
    
    ReflectionException
  - setAttributes
```
public AttributeList setAttributes(AttributeList attributes)
```
    Specified by:
    
    setAttributes in interface DynamicMBean

Class DSpaceKernelImpl

Field Summary

Fields inherited from interface org.dspace.kernel.DSpaceKernel

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DSpaceKernelImpl

Method Detail

registerShutdownHook

getConfigurationService

getServiceManager

getMBeanName

isRunning

getManagedBean

start

start

stop

destroy

doDestroy

finalize

toString

getLastLoadDate

getLoadTime

invoke

getMBeanInfo

getAttribute

getAttributes

setAttribute

setAttributes