| /* |
| * Copyright 1999-2004 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.samples.parentcm; |
| |
| import org.apache.avalon.excalibur.pool.Poolable; |
| import org.apache.avalon.framework.component.ComponentException; |
| import org.apache.avalon.framework.parameters.Parameters; |
| import org.apache.cocoon.ProcessingException; |
| import org.apache.cocoon.environment.SourceResolver; |
| import org.apache.cocoon.generation.ComposerGenerator; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.helpers.AttributesImpl; |
| |
| import java.io.IOException; |
| import java.util.Date; |
| import java.util.Map; |
| |
| /** |
| * Generator for the parent component manager sample. The generator outputs |
| * a single tag <code><time><i>current time</i></time></code>. |
| * Where <code><i>current time</i></code> is the current time as obtained from the |
| * <code>Time</code> component. |
| * |
| * @author <a href="mailto:leo.sutic@inspireinfrastructure.com">Leo Sutic</a> |
| * @version CVS $Id: Generator.java,v 1.2 2004/03/05 13:03:02 bdelacretaz Exp $ |
| */ |
| public class Generator extends ComposerGenerator implements Poolable { |
| |
| /** |
| * Current time. |
| */ |
| private Date time; |
| |
| /** |
| * Looks up a <code>Time</code> component and obtains the current time. |
| */ |
| public void setup(SourceResolver resolver, Map objectModel, String src, Parameters par) |
| throws ProcessingException, SAXException, IOException { |
| |
| Time timeGiver = null; |
| try { |
| timeGiver = (Time) manager.lookup(Time.ROLE); |
| this.time = timeGiver.getTime (); |
| } catch (ComponentException ce) { |
| throw new ProcessingException ("Could not obtain current time.", ce); |
| } finally { |
| manager.release(timeGiver); |
| } |
| } |
| |
| /** |
| * Generate XML data. |
| */ |
| public void generate() throws SAXException, ProcessingException { |
| AttributesImpl emptyAttributes = new AttributesImpl(); |
| contentHandler.startDocument(); |
| contentHandler.startElement("", "time", "time", emptyAttributes); |
| |
| char[] text = this.time.toString().toCharArray(); |
| |
| contentHandler.characters(text, 0, text.length); |
| |
| contentHandler.endElement("", "time", "time"); |
| contentHandler.endDocument(); |
| } |
| |
| /** |
| * Prepare this object for another cycle. |
| */ |
| public void recycle () { |
| this.time = null; |
| } |
| } |
| |
| |