uk.org.retep.util.messaging.router.RouterAdapter Maven / Gradle / Ivy
/*
* Copyright (c) 1998-2009, Peter T Mount
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the retep.org.uk nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package uk.org.retep.util.messaging.router;
import java.util.Collection;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import uk.org.retep.util.messaging.Component;
import uk.org.retep.util.messaging.Message;
import uk.org.retep.util.messaging.MessageException;
import uk.org.retep.util.messaging.MessagingService;
import uk.org.retep.util.messaging.Router;
/**
* An adapter which wraps another Router implementation
*
* @param Type of the address
* @param Type used to represent a route
* @author peter
* @since 9.5
*/
public class RouterAdapter
implements Router
{
private final Router router;
/**
* @param router
*/
public RouterAdapter( @Nonnull final Router router )
{
this.router = router;
}
@SuppressWarnings( "unchecked" )
@Nonnull
protected final > T getRouter()
{
return (T) router;
}
/**
* {@inheritDoc }
*/
@Override
@Nullable
public K getKey()
{
return router.getKey();
}
/**
* {@inheritDoc }
*/
@Override
public void add( @Nonnull final Component> component )
throws MessageException
{
router.add( component );
}
/**
* {@inheritDoc }
*/
@Override
public boolean addRoute( @Nonnull final R route,
@Nonnull final Component component )
throws MessageException
{
return router.addRoute( route, component );
}
/**
* {@inheritDoc }
*/
@Override
public boolean removeRoute( @Nonnull final R route )
{
return router.removeRoute( route );
}
/**
* {@inheritDoc }
*/
@Override
public boolean removeComponent( @Nonnull final Component component )
{
return router.removeComponent( component );
}
/**
* {@inheritDoc }
*/
@Override
@Nonnull
public Collection getRoutes()
{
return router.getRoutes();
}
/**
* {@inheritDoc }
*/
@Override
@Nonnull
public Collection> getComponents()
{
return router.getComponents();
}
/**
* {@inheritDoc }
*/
@Override
public void consume( @Nonnull final Message message )
throws MessageException
{
router.consume( message );
}
/**
* {@inheritDoc }
*/
@Override
public void setMessagingService(
@Nonnull final MessagingService messagingService )
throws MessageException
{
router.setMessagingService( messagingService );
}
/**
* {@inheritDoc }
*
*
* Subclasses must call super or call the same method
* in the router otherwise the router will fail during use.
*
*/
@Override
public void startComponent()
throws MessageException
{
router.startComponent();
}
/**
* {@inheritDoc }
*
*
* Subclasses must call super or call the same method
* in the router otherwise the router will fail during use.
*
*/
@Override
public void stopComponent()
{
router.stopComponent();
}
/**
* {@inheritDoc }
*
*
* Subclasses must call super or call the same method
* in the router otherwise the router will fail during use.
*
*/
@Override
public boolean isComponentStarted()
{
return router.isComponentStarted();
}
@Override
public String toString()
{
final K key = getKey();
if( key == null )
{
return super.toString();
}
else
{
return getClass().getName() + "[" + key + "]";
}
}
@Override
public int hashCode()
{
final K key = getKey();
if( key == null )
{
return super.hashCode();
}
else
{
return key.hashCode();
}
}
@Override
public boolean equals( final Object obj )
{
if( obj == null )
{
return false;
}
if( getClass() != obj.getClass() )
{
return false;
}
@SuppressWarnings( "unchecked" )
final RouterAdapter other = (RouterAdapter) obj;
final K key = getKey();
final K otherKey = other.getKey();
return !(key != otherKey && (key == null || !key.equals( otherKey )));
}
}