| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.wicket.velocity; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Properties; |
| |
| import jakarta.servlet.ServletContext; |
| |
| import org.apache.velocity.app.Velocity; |
| import org.apache.wicket.Application; |
| import org.apache.wicket.IInitializer; |
| import org.apache.wicket.WicketRuntimeException; |
| import org.apache.wicket.core.util.file.WebApplicationPath; |
| import org.apache.wicket.protocol.http.WebApplication; |
| import org.apache.wicket.util.io.IOUtils; |
| import org.apache.wicket.util.resource.IResourceStream; |
| import org.apache.wicket.util.resource.ResourceStreamNotFoundException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * An implementation of {@link org.apache.wicket.IInitializer} for the Velocity Runtime Singleton. |
| * If Application is an instance of WebApplication, Initializer will retrieve |
| * "velocityPropertiesFolder" as an initparam to point to the directory the properties file lives |
| * in, and "velocity.properties" for the name of the properties file. If the params don't exist, |
| * then velocity.properties next to this class will be loaded. |
| * |
| */ |
| public class Initializer implements IInitializer |
| { |
| private static final Logger log = LoggerFactory.getLogger(Initializer.class); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void init(final Application application) |
| { |
| Properties props = getVelocityProperties(application); |
| |
| try |
| { |
| Velocity.init(props); |
| log.info("Initialized Velocity successfully"); |
| } |
| catch (Exception e) |
| { |
| throw new WicketRuntimeException(e); |
| } |
| } |
| |
| private Properties getVelocityProperties(final Application application) |
| { |
| String velocityPropertiesFile = "velocity.properties"; |
| |
| if (application instanceof WebApplication) |
| { |
| WebApplication webapp = (WebApplication)application; |
| ServletContext servletContext = webapp.getServletContext(); |
| String propertiesFolder = servletContext.getInitParameter("velocityPropertiesFolder"); |
| String propsFile = servletContext.getInitParameter("velocity.properties"); |
| |
| if (null != propsFile) |
| { |
| velocityPropertiesFile = propsFile; |
| } |
| |
| if (null != propertiesFolder) |
| { |
| WebApplicationPath webPath = new WebApplicationPath(servletContext, |
| propertiesFolder); |
| IResourceStream stream = webPath.find(Initializer.class, velocityPropertiesFile); |
| InputStream is; |
| try |
| { |
| is = stream.getInputStream(); |
| Properties props = new Properties(); |
| props.load(is); |
| return props; |
| } |
| catch (IOException | ResourceStreamNotFoundException e) |
| { |
| throw new WicketRuntimeException(e); |
| } finally |
| { |
| try |
| { |
| IOUtils.close(stream); |
| } |
| catch (IOException e) |
| { |
| log.error(e.getMessage(), e); |
| } |
| } |
| } |
| } |
| |
| // if it's not a web app, load from the package |
| InputStream is = Initializer.class.getResourceAsStream("velocity.properties"); |
| try |
| { |
| Properties props = new Properties(); |
| props.load(is); |
| return props; |
| } |
| catch (Exception e) |
| { |
| throw new WicketRuntimeException(e); |
| } |
| finally |
| { |
| try |
| { |
| IOUtils.close(is); |
| } |
| catch (IOException e) |
| { |
| log.error(e.getMessage(), e); |
| } |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void destroy(final Application application) |
| { |
| } |
| } |