| package org.apache.turbine.util.template; |
| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001-2003 The Apache Software Foundation. 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 |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" and |
| * "Apache Turbine" must not be used to endorse or promote products |
| * derived from this software without prior written permission. For |
| * written permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * "Apache Turbine", nor may "Apache" appear in their name, without |
| * prior written permission of the Apache Software Foundation. |
| * |
| * 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 APACHE SOFTWARE FOUNDATION 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| import java.util.Map; |
| import java.util.HashMap; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import org.apache.turbine.services.template.TurbineTemplate; |
| import org.apache.turbine.util.RunData; |
| import org.apache.turbine.util.uri.URIConstants; |
| |
| |
| /** |
| * This is a wrapper for Template specific information. It's part of |
| * the RunData object and can extract the information it needs to do |
| * the job directly from the data.getParameters(). |
| * |
| * @author <a href="mailto:mbryson@mindspring.com">Dave Bryson</a> |
| * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> |
| * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> |
| * @version $Id$ |
| */ |
| public class TemplateInfo |
| { |
| /** Logging */ |
| private static Log log = LogFactory.getLog(TemplateInfo.class); |
| |
| |
| /* Constants for tempStorage hash map. */ |
| public static final String NAVIGATION_TEMPLATE = "00navigation_template00"; |
| public static final String LAYOUT_TEMPLATE = "00layout_template00"; |
| public static final String SERVICE_NAME = "template_service"; |
| |
| /* Handle to the RunData object. */ |
| private RunData data = null; |
| |
| /* Place to store information about templates. */ |
| private Map tempStorage = null; |
| |
| /** |
| * Constructor |
| * |
| * @param RunData A Turbine Rundata object. |
| */ |
| public TemplateInfo(RunData data) |
| { |
| this.data = data; |
| tempStorage = new HashMap(10); |
| } |
| |
| /** |
| * Get the value of navigationTemplate. |
| * |
| * @return A String with the value of navigationTemplate. |
| */ |
| public String getNavigationTemplate() |
| { |
| return getString(TemplateInfo.NAVIGATION_TEMPLATE); |
| } |
| |
| /** |
| * Set the value of navigationTemplate. |
| * |
| * @param v Value to assign to navigationTemplate. |
| */ |
| public void setNavigationTemplate(String v) |
| { |
| setTemp(TemplateInfo.NAVIGATION_TEMPLATE, v); |
| } |
| |
| /** |
| * Get the value of screen for the RunData parameters. This |
| * information comes from PathInfo or a QueryString. |
| * |
| * @return A String with the value of screen. |
| */ |
| public String getScreenTemplate() |
| { |
| return data.getParameters().getString(URIConstants.CGI_TEMPLATE_PARAM, null); |
| } |
| |
| /** |
| * Set the value of screen. This is really just a method to hide |
| * using the RunData Parameter. |
| * |
| * @param v Value to assign to screen. |
| */ |
| public void setScreenTemplate(String v) |
| { |
| data.getParameters().setString(URIConstants.CGI_TEMPLATE_PARAM, v); |
| |
| // We have changed the screen template so |
| // we should now update the layout template |
| // as well. We will use the template service |
| // to help us out. |
| try |
| { |
| setLayoutTemplate(TurbineTemplate.getLayoutTemplateName(v)); |
| } |
| catch (Exception e) |
| { |
| /* |
| * do nothing. |
| */ |
| } |
| } |
| |
| /** |
| * Get the value of layout. |
| * |
| * @return A String with the value of layout. |
| */ |
| public String getLayoutTemplate() |
| { |
| String value = getString(TemplateInfo.LAYOUT_TEMPLATE); |
| return value; |
| } |
| |
| /** |
| * Set the value of layout. |
| * |
| * @param v Value to assign to layout. |
| */ |
| public void setLayoutTemplate(String v) |
| { |
| setTemp(TemplateInfo.LAYOUT_TEMPLATE, v); |
| } |
| |
| /** |
| * Get the value of Template context. This will be cast to the |
| * proper Context by its Service. |
| * |
| * @param name The name of the template context. |
| * @return An Object with the Value of context. |
| */ |
| public Object getTemplateContext(String name) |
| { |
| return getTemp(name); |
| } |
| |
| /** |
| * Set the value of context. |
| * |
| * @param name The name of the template context. |
| * @param v Value to assign to context. |
| */ |
| public void setTemplateContext(String name, Object v) |
| { |
| setTemp(name, v); |
| } |
| |
| /** |
| * Get the value of service. |
| * |
| * @return A String with the value of service. |
| */ |
| public String getService() |
| { |
| return getString(TemplateInfo.SERVICE_NAME); |
| } |
| |
| /** |
| * Set the value of service. |
| * |
| * @param v Value to assign to service. |
| */ |
| public void setService(String v) |
| { |
| setTemp(TemplateInfo.SERVICE_NAME, v); |
| } |
| |
| /** |
| * Get an object from temporary storage. |
| * |
| * @param name A String with the name of the object. |
| * @return An Object. |
| */ |
| public Object getTemp(String name) |
| { |
| return tempStorage.get(name); |
| } |
| |
| /** |
| * Get an object from temporary storage, or a default value. |
| * |
| * @param name A String with the name of the object. |
| * @param def An Object, the default value. |
| * @return An Object. |
| */ |
| public Object getTemp(String name, Object def) |
| { |
| try |
| { |
| Object val = tempStorage.get(name); |
| return (val != null) ? val : def; |
| } |
| catch (Exception e) |
| { |
| return def; |
| } |
| } |
| |
| /** |
| * Put an object into temporary storage. |
| * |
| * @param name A String with the name of the object. |
| * @param value An Object, the value. |
| */ |
| public void setTemp(String name, Object value) |
| { |
| tempStorage.put(name, value); |
| } |
| |
| /** |
| * Return a String[] from the temp hash map. |
| * |
| * @param name A String with the name of the object. |
| * @return A String[]. |
| */ |
| public String[] getStringArray(String name) |
| { |
| String[] value = null; |
| Object object = getTemp(name, null); |
| if (object != null) |
| { |
| value = (String[]) object; |
| } |
| return value; |
| } |
| |
| /** |
| * Return a String from the temp hash map. |
| * |
| * @param name A String with the name of the object. |
| * @return A String. |
| */ |
| public String getString(String name) |
| { |
| String value = null; |
| Object object = getTemp(name, null); |
| if (object != null) |
| { |
| value = (String) object; |
| } |
| return value; |
| } |
| |
| /** |
| * Remove an object from the temporary storage. |
| * |
| * @param name A String with the name of the object. |
| * @return The object that was removed or <code>null</code> |
| * if the name was not a key. |
| */ |
| public Object removeTemp(String name) |
| { |
| return tempStorage.remove(name); |
| } |
| |
| /* |
| * Returns all the available names in the temporary storage. |
| * |
| * @return A object array with the keys. |
| */ |
| public Object[] getTempKeys() |
| { |
| return tempStorage.keySet().toArray(); |
| } |
| } |