/*
* Copyright (C) 2003-2010 eXo Platform SAS.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see<http://www.gnu.org/licenses/>.
*/
package org.exoplatform.social.core.processor;
import java.util.Map;
import org.exoplatform.container.xml.InitParams;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.exoplatform.social.core.BaseActivityProcessorPlugin;
import org.exoplatform.social.core.activity.model.ExoSocialActivity;
/**
* The templateParamsProcessor to process an activity. Replace template key
* by template value in activity's title.
* Created by The eXo Platform SAS
* Author : Zun
* exo@exoplatform.com
* 10:59:09 AM
*/
public class TemplateParamsProcessor extends BaseActivityProcessorPlugin {
private static final Log LOG = ExoLogger.getLogger(TemplateParamsProcessor.class);
public TemplateParamsProcessor(InitParams params) {
super(params);
}
public void processActivity(ExoSocialActivity activity) {
try {
Map<String,String> params = activity.getTemplateParams();
activity.setTitle(processTemplate(activity.getTitle(), params));
activity.setBody(processTemplate(activity.getBody(), params));
} catch (Exception e) {
LOG.error("TemplateParamsProcessor error : ", e);
}
}
private String processTemplate(String template, Map<String, String> params) throws Exception {
if (template == null) {
return template;
}
int start = 0;
int open;
int close;
while ((open = template.indexOf("${", start)) != -1){
start = close = template.indexOf("}");
if (close == -1) {
throw new Exception("Template is invalid. [Do not contain '}']");
}
String key = template.substring(open + 2, close);
String value = params.get(key);
String templateKey = "${"+key+"}";
template = template.replace(templateKey, value);
}
return template;
}
}