Mercurial > hg > blitz_condensed
view src/com/go/trove/util/plugin/PluginFactory.java @ 0:3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 21 Mar 2009 11:00:06 +0000 |
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/* ==================================================================== * 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 <!--$$Revision: 1.1 $-->-<!--$$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; } }