public PackageState(Module module) 
{
                          
    this (module, STATE_NEW);
}

Creates a new package state for the given module. The module state will be initialized to STATE_NEW.

Parameters:

module - the module.

 public PackageState(Module module,
    int state) 
{
    if (module == null)
    {
      throw new NullPointerException("Module must not be null.");
    }
    if (state != STATE_CONFIGURED && state != STATE_ERROR 
            && state != STATE_INITIALIZED && state != STATE_NEW)
    {
      throw new IllegalArgumentException("State is not valid");
    }
    this.module = module;
    this.state = state;
}

Creates a new package state for the given module. The module state will be initialized to the given initial state.

Parameters:

module - the module.

state - the initial state

 public boolean configure(SubSystem subSystem) 
{
    if (this.state == STATE_NEW)
    {
      try
      {
        this.module.configure(subSystem);
        this.state = STATE_CONFIGURED;
        return true;
      }
      catch (NoClassDefFoundError noClassDef)
      {
        Log.warn (new Log.SimpleMessage("Unable to load module classes for ",
                this.module.getName(), ":", noClassDef.getMessage()));
        this.state = STATE_ERROR;
      }
      catch (Exception e)
      {
        if (Log.isDebugEnabled())
        {
          // its still worth a warning, but now we are more verbose ...
          Log.warn("Unable to configure the module " + this.module.getName(), e);
        }
        else if (Log.isWarningEnabled())
        {
          Log.warn("Unable to configure the module " + this.module.getName());
        }
        this.state = STATE_ERROR;
      }
    }
    return false;
}

Configures the module and raises the state to STATE_CONFIGURED if the module is not yet configured.

 public boolean equals(Object o) 
{
    if (this == o)
    {
      return true;
    }
    if (!(o instanceof PackageState))
    {
      return false;
    }
    final PackageState packageState = (PackageState) o;
    if (!this.module.getModuleClass().equals(packageState.module.getModuleClass()))
    {
      return false;
    }
    return true;
}

Compares this object with the given other object for equality.

 public Module getModule() 
{
    return this.module;
}

Returns the module managed by this state implementation.

 public int getState() 
{
    return this.state;
}

Returns the current state of the module. This method returns either STATE_NEW, STATE_CONFIGURED, STATE_INITIALIZED or STATE_ERROR.

 public int hashCode() 
{
    return this.module.hashCode();
}

Computes a hashcode for this package state.

 public boolean initialize(SubSystem subSystem) 
{
    if (this.state == STATE_CONFIGURED)
    {
      try
      {
          this.module.initialize(subSystem);
          this.state = STATE_INITIALIZED;
          return true;
      }
      catch (NoClassDefFoundError noClassDef)
      {
        Log.warn (new Log.SimpleMessage("Unable to load module classes for ",
                this.module.getName(), ":", noClassDef.getMessage()));
        this.state = STATE_ERROR;
      }
      catch (ModuleInitializeException me)
      {
        if (Log.isDebugEnabled())
        {
          // its still worth a warning, but now we are more verbose ...
          Log.warn("Unable to initialize the module " + this.module.getName(), me);
        }
        else if (Log.isWarningEnabled())
        {
          Log.warn("Unable to initialize the module " + this.module.getName());
        }
        this.state = STATE_ERROR;
      }
      catch (Exception e)
      {
        if (Log.isDebugEnabled())
        {
          // its still worth a warning, but now we are more verbose ...
          Log.warn("Unable to initialize the module " + this.module.getName(), e);
        }
        else if (Log.isWarningEnabled())
        {
          Log.warn("Unable to initialize the module " + this.module.getName());
        }
        this.state = STATE_ERROR;
      }
    }
    return false;
}

Initializes the contained module and raises the set of the module to STATE_INITIALIZED, if the module was not yet initialized. In case of an error, the module state will be set to STATE_ERROR and the module will not be available.