/*
*
* Copyright 2013 Entando S.r.l. (http://www.entando.com) All rights reserved.
*
* This file is part of Entando software.
* Entando is a free software;
* You can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation; version 2.
*
* See the file License for the specific language governing permissions
* and limitations under the License
*
*
*
* Copyright 2013 Entando S.r.l. (http://www.entando.com) All rights reserved.
*
*/
package com.agiletec.plugins.jpcmstagcloud.aps.tags;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;
import org.apache.commons.beanutils.BeanComparator;
import com.agiletec.aps.system.ApsSystemUtils;
import com.agiletec.aps.system.RequestContext;
import com.agiletec.aps.system.SystemConstants;
import com.agiletec.aps.system.common.tree.ITreeNode;
import com.agiletec.aps.system.exception.ApsSystemException;
import com.agiletec.aps.system.services.lang.Lang;
import com.agiletec.aps.system.services.user.UserDetails;
import com.agiletec.aps.util.ApsWebApplicationUtils;
import com.agiletec.plugins.jpcmstagcloud.aps.system.JpcmstagcloudSystemConstants;
import com.agiletec.plugins.jpcmstagcloud.aps.system.services.tagcloud.ITagCloudManager;
import com.agiletec.plugins.jpcmstagcloud.aps.tags.util.CloudInfoBean;
/**
* @author E.Santoboni
*/
public class TagCloudBuilderTag extends TagSupport {
@Override
public int doStartTag() throws JspException {
ITagCloudManager tagCloudManager = (ITagCloudManager) ApsWebApplicationUtils.getBean(JpcmstagcloudSystemConstants.TAG_CLOUD_MANAGER, this.pageContext);
try {
UserDetails currentUser = (UserDetails) this.pageContext.getSession().getAttribute(SystemConstants.SESSIONPARAM_CURRENT_USER);
Map<ITreeNode, Integer> occurrences = tagCloudManager.getCloudInfos(currentUser);
if (null != this.getOccurrencesVar()) {
this.pageContext.setAttribute(this.getOccurrencesVar(), occurrences);
}
List<CloudInfoBean> cloudBeans = this.buildCloudsInfoBeans(occurrences);
this.pageContext.setAttribute(this.getCloudBeansVar(), cloudBeans);
} catch (Throwable t) {
ApsSystemUtils.logThrowable(t, this, "doStartTag");
throw new JspException("Error during tag initialization ", t);
}
return super.doStartTag();
}
private List<CloudInfoBean> buildCloudsInfoBeans(Map<ITreeNode, Integer> occurrences) throws Throwable {
List<CloudInfoBean> beans = new ArrayList<CloudInfoBean>();
try {
ServletRequest request = this.pageContext.getRequest();
RequestContext reqCtx = (RequestContext) request.getAttribute(RequestContext.REQCTX);
Lang currentLang = (Lang) reqCtx.getExtraParam(SystemConstants.EXTRAPAR_CURRENT_LANG);
int[] minMax = this.extractMinMax(occurrences);
int interval = (minMax[1] - minMax[0]);
double delta = ((double)interval)/9d;
Iterator<ITreeNode> iter = occurrences.keySet().iterator();
while (iter.hasNext()) {
ITreeNode treeNode = iter.next();
int occurrence = occurrences.get(treeNode).intValue();
double position = ((double) (occurrence-minMax[0]))/delta;
long positionInt = Math.round(position);
String classId = String.valueOf(((int)positionInt+1));
CloudInfoBean bean = new CloudInfoBean(treeNode, occurrence, classId, currentLang);
beans.add(bean);
}
BeanComparator comparator = new BeanComparator("title");
Collections.sort(beans, comparator);
} catch (Throwable t) {
ApsSystemUtils.logThrowable(t, this, "buildCloudsInfoBeans");
throw new ApsSystemException("Error building Cloud info", t);
}
return beans;
}
private int[] extractMinMax(Map<ITreeNode, Integer> occurrences) {
int[] minMax = new int[2];
if (null == occurrences || occurrences.isEmpty()) {
return minMax;
}
minMax[0] = -1;
List<Integer> list = new ArrayList<Integer>(occurrences.values());
for (int i=0; i<list.size(); i++) {
int integer = list.get(i).intValue();
if (minMax[0] > integer || minMax[0] == -1) {
minMax[0] = integer;
}
if (minMax[1] < integer) {
minMax[1] = integer;
}
}
return minMax;
}
@Override
public void release() {
super.release();
this.setOccurrencesVar(null);
this.setCloudBeansVar(null);
}
public String getOccurrencesVar() {
return _occurrencesVar;
}
public void setOccurrencesVar(String occurrencesVar) {
this._occurrencesVar = occurrencesVar;
}
public String getCloudBeansVar() {
return _cloudBeansVar;
}
public void setCloudBeansVar(String cloudBeansVar) {
this._cloudBeansVar = cloudBeansVar;
}
private String _occurrencesVar;
private String _cloudBeansVar;
}