| /* |
| * Copyright 1999-2002,2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.cocoon.portal.event.aspect.impl; |
| |
| import java.util.StringTokenizer; |
| |
| import org.apache.avalon.framework.logger.AbstractLogEnabled; |
| import org.apache.avalon.framework.service.ServiceException; |
| import org.apache.avalon.framework.service.ServiceManager; |
| import org.apache.avalon.framework.service.Serviceable; |
| import org.apache.avalon.framework.thread.ThreadSafe; |
| import org.apache.cocoon.environment.ObjectModelHelper; |
| import org.apache.cocoon.environment.Request; |
| import org.apache.cocoon.portal.PortalService; |
| import org.apache.cocoon.portal.event.Event; |
| import org.apache.cocoon.portal.event.Publisher; |
| import org.apache.cocoon.portal.event.aspect.EventAspect; |
| import org.apache.cocoon.portal.event.aspect.EventAspectContext; |
| import org.apache.cocoon.portal.layout.Layout; |
| |
| /** |
| * |
| * @author <a href="mailto:juergen.seitz@basf-it-services.com">Jürgen Seitz</a> |
| * @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a> |
| * |
| * @version CVS $Id: AbstractContentEventAspect.java,v 1.4 2004/03/05 13:02:12 bdelacretaz Exp $ |
| */ |
| public abstract class AbstractContentEventAspect |
| extends AbstractLogEnabled |
| implements EventAspect, ThreadSafe, Serviceable { |
| |
| protected ServiceManager manager; |
| |
| /* (non-Javadoc) |
| * @see org.apache.avalon.framework.service.Serviceable#service(org.apache.avalon.framework.service.ServiceManager) |
| */ |
| public void service(ServiceManager manager) throws ServiceException { |
| this.manager = manager; |
| } |
| |
| protected abstract String getRequestParameterName(); |
| |
| protected abstract int getRequiredValueCount(); |
| |
| /** |
| * Custom publishing of an event. |
| * The real values for the event are contained in the array |
| * starting with index 2! |
| * @param layout The corresponding layout |
| * @param values The values contained in the request |
| */ |
| protected abstract void publish(Publisher publisher, Layout layout, String[] values); |
| |
| /** |
| * Publish the event. |
| * This method gets the layout object from the first two |
| * values and invokes {@link #publish(Publisher, Layout, String[])}. |
| * @param values The values contained in the request |
| */ |
| protected void publish( PortalService service, Publisher publisher, String[] values) { |
| Layout layout = service.getComponentManager().getProfileManager().getPortalLayout(values[0], values[1] ); |
| if ( layout != null ) { |
| this.publish( publisher, layout, values); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.portal.event.aspect.EventAspect#process(org.apache.cocoon.portal.event.aspect.EventAspectContext, org.apache.cocoon.portal.PortalService) |
| */ |
| public void process(EventAspectContext context, PortalService service) { |
| final Request request = ObjectModelHelper.getRequest(context.getObjectModel()); |
| String[] values = request.getParameterValues(this.getRequestParameterName()); |
| if (values != null) { |
| final Publisher publisher = context.getEventPublisher(); |
| for (int i = 0; i < values.length; i++) { |
| // first try to make an event out of the value of the parameter |
| final String value = values[i]; |
| Event e = null; |
| try { |
| e = context.getEventConverter().decode(value); |
| if (null != e) { |
| publisher.publish(e); |
| } |
| } catch (Exception ignore) { |
| } |
| // the event could not be generated, so try different approach |
| if (e == null) { |
| // Use '|' character as delimiter between Group, ID and URI |
| StringTokenizer tokenizer = new StringTokenizer(value, "|"); |
| int tokenNumber = 0; |
| int tokenCount = tokenizer.countTokens(); |
| // if only 2 params are in the String |
| // the groupKey is missing and defaults to null |
| if (tokenCount == this.getRequiredValueCount()-1) { |
| tokenNumber = tokenNumber + 1; |
| tokenCount++; |
| } |
| |
| if ( tokenCount == this.getRequiredValueCount() ) { |
| String [] eventValues = new String[tokenCount]; |
| |
| while (tokenizer.hasMoreTokens()) { |
| eventValues[tokenNumber] = tokenizer.nextToken(); |
| |
| tokenNumber = tokenNumber + 1; |
| } |
| |
| this.publish( service, publisher, eventValues ); |
| |
| } else { |
| this.getLogger().warn("Data for Event is not set correctly"); |
| } |
| } |
| } |
| } |
| // and invoke next one |
| context.invokeNext(service); |
| } |
| |
| } |