openwfe.org.FactoryService Maven / Gradle / Ivy
/*
* Copyright (c) 2001-2006, John Mettraux, OpenWFE.org
* 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 "OpenWFE" 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.
*
* $Id: FactoryService.java 2673 2006-05-26 21:08:46Z jmettraux $
*/
//
// FactoryService.java
//
// [email protected]
//
// generated with
// jtmpl 1.0.04 31.10.2002 John Mettraux ([email protected])
//
package openwfe.org;
/**
* A service that builds instances
*
* CVS Info :
*
$Author: jmettraux $
*
$Date: 2006-05-26 23:08:46 +0200 (Fri, 26 May 2006) $
*
$Id: FactoryService.java 2673 2006-05-26 21:08:46Z jmettraux $
*
* @author [email protected]
*/
public class FactoryService
extends AbstractService
{
/*
private final static org.apache.log4j.Logger log = org.apache.log4j.Logger
.getLogger(FactoryService.class.getName());
*/
//
// CONSTANTS (definitions)
public final static String SERVICE_CLASS
= "serviceClass";
//
// FIELDS
private Class serviceClass = null;
//
// CONSTRUCTORS
public void init
(final String serviceName,
final ApplicationContext context,
final java.util.Map serviceParams)
throws
ServiceException
{
super.init(serviceName, context, serviceParams);
String className = MapUtils
.getMandatoryString(getParams(), SERVICE_CLASS);
try
{
this.serviceClass = Class.forName(className);
}
catch (ClassNotFoundException cnfe)
{
throw new ServiceException
("Cannot find class '"+className+"'", cnfe);
}
if ( ! Service.class.isAssignableFrom(this.serviceClass))
{
throw new ServiceException
("Cannot set up a factory for class '"+className+
"', it's not implementing "+Service.class.getName());
}
}
//
// METHODS from Service
//
// METHODS
public Service buildService ()
throws ServiceException
{
Service newService = null;
try
{
newService = (Service)this.serviceClass.newInstance();
}
catch (Exception e)
{
throw new ServiceException
("Failed to build service of class '"+
this.serviceClass.getName()+"'", e);
}
final String name = getName() + "." + System.currentTimeMillis();
try
{
newService.init(name, getContext(), getParams());
}
catch (ServiceException se)
{
throw new ServiceException
("Failed to init service of class '"+
this.serviceClass.getName()+"' just built", se);
}
return newService;
}
}