Mercurial > hg > blitz_condensed
diff 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> |
---|---|
date | Sat, 21 Mar 2009 11:00:06 +0000 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/com/go/trove/util/plugin/PluginFactory.java Sat Mar 21 11:00:06 2009 +0000 @@ -0,0 +1,115 @@ +/* ==================================================================== + * 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; + } + +} +