/* ====================================================================
* Trove - Copyright (c) 1999-2001 Walt Disney Internet Group
* ====================================================================
* The Tea Software License, Version 1.1
*
* Copyright (c) 2000 Walt Disney Internet Group. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Walt Disney Internet Group (http://opensource.go.com/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact opensource@dig.com.
*
* 5. Products derived from this software may not be called "Tea",
* "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet",
* "Kettle", "Trove" or "BeanDoc" appear in their name, without prior
* written permission of the Walt Disney Internet Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 WALT DISNEY INTERNET GROUP OR ITS
* 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.
* ====================================================================
*
* For more information about Tea, please see http://opensource.go.com/.
*/
package com.go.trove.util.plugin;
import com.go.trove.util.PropertyMap;
import java.util.Iterator;
import java.util.Set;
/**
* This class is responsible for creating plugins based from a
* configuration block.
*
* @author Scott Jappinen
* @version <!--$$Revision:--> 1 <!-- $-->-<!--$$JustDate:--> 01/03/23 <!-- $-->
*/
public class PluginFactory {
private static final String cClassKey = "class";
private static final String cInitKey = "init";
private static final String cPluginsKey = "plugins";
public static final Plugin createPlugin(String name, PluginFactoryConfig config)
throws PluginFactoryException
{
Plugin result;
String className = config.getProperties().getString(cClassKey);
PropertyMap props = config.getProperties().subMap(cInitKey);
try {
Class clazz = Class.forName(className);
result = (Plugin) clazz.newInstance();
PluginConfig pluginConfig = new PluginConfigSupport
(props, config.getLog(), config.getPluginContext(), name);
result.init(pluginConfig);
} catch (PluginException e) {
throw new PluginFactoryException(e);
} catch (ClassNotFoundException e) {
throw new PluginFactoryException(e);
} catch (InstantiationException e) {
throw new PluginFactoryException(e);
} catch (IllegalAccessException e) {
throw new PluginFactoryException(e);
}
return result;
}
public static final Plugin[] createPlugins(PluginFactoryConfig config)
throws PluginFactoryException
{
Plugin[] result;
PropertyMap properties = config.getProperties().subMap(cPluginsKey);
Set keySet = properties.subMapKeySet();
result = new Plugin[keySet.size()];
Iterator iterator = keySet.iterator();
for (int i=0; iterator.hasNext(); i++) {
String name = (String) iterator.next();
PropertyMap initProps = properties.subMap(name);
PluginFactoryConfig conf = new PluginFactoryConfigSupport
(initProps, config.getLog(), config.getPluginContext());
result[i] = createPlugin(name, conf);
}
return result;
}
}