/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. 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. For additional information regarding
* copyright in this work, please see the NOTICE file in the top level
* directory of this distribution.
*/
package org.apache.roller.ui.rendering.util;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.roller.RollerException;
import org.apache.roller.business.ThemeNotFoundException;
import org.apache.roller.business.RollerFactory;
import org.apache.roller.business.ThemeManager;
import org.apache.roller.business.WeblogManager;
import org.apache.roller.pojos.Theme;
import org.apache.roller.pojos.WeblogEntryData;
import org.apache.roller.util.URLUtilities;
/**
* Represents a request for a weblog preview.
*/
public class WeblogPreviewRequest extends WeblogPageRequest {
private static Log log = LogFactory.getLog(WeblogPreviewRequest.class);
private static final String PREVIEW_SERVLET = "/roller-ui/authoring/preview";
// lightweight attributes
private String themeName = null;
private String previewEntry = null;
// heavyweight attributes
private Theme theme = null;
private WeblogEntryData weblogEntry = null;
public WeblogPreviewRequest(HttpServletRequest request)
throws InvalidRequestException {
// let parent go first
super(request);
// we may have a specific theme to preview
if(request.getParameter("theme") != null) {
this.themeName = request.getParameter("theme");
}
// we may also have a specific entry to preview
if(request.getParameter("previewEntry") != null) {
this.previewEntry = URLUtilities.decode(request.getParameter("previewEntry"));
}
if(log.isDebugEnabled()) {
log.debug("theme = "+this.themeName);
}
}
boolean isValidDestination(String servlet) {
return (servlet != null && PREVIEW_SERVLET.equals(servlet));
}
public String getThemeName() {
return themeName;
}
public void setThemeName(String theme) {
this.themeName = theme;
}
// override so that previews never show login status
public String getAuthenticUser() {
return null;
}
// override so that previews never show login status
public boolean isLoggedIn() {
return false;
}
public Theme getTheme() {
if(theme == null && themeName != null) {
try {
ThemeManager themeMgr = RollerFactory.getRoller().getThemeManager();
theme = themeMgr.getTheme(themeName);
} catch(ThemeNotFoundException tnfe) {
// bogus theme specified ... don't worry about it
} catch(RollerException re) {
log.error("Error looking up theme "+themeName, re);
}
}
return theme;
}
public void setTheme(Theme theme) {
this.theme = theme;
}
public String getPreviewEntry() {
return previewEntry;
}
public void setPreviewEntry(String previewEntry) {
this.previewEntry = previewEntry;
}
// if we have a preview entry we would prefer to return that
public WeblogEntryData getWeblogEntry() {
if(weblogEntry == null &&
(previewEntry != null || super.getWeblogAnchor() != null)) {
String anchor = previewEntry;
if(previewEntry == null) {
anchor = super.getWeblogAnchor();
}
try {
WeblogManager wmgr = RollerFactory.getRoller().getWeblogManager();
weblogEntry = wmgr.getWeblogEntryByAnchor(getWeblog(), anchor);
} catch (RollerException ex) {
log.error("Error getting weblog entry "+anchor, ex);
}
}
return weblogEntry;
}
public void setWeblogEntry(WeblogEntryData weblogEntry) {
this.weblogEntry = weblogEntry;
}
}