/*
The Jenkov JSP Tree Tag provides extra tasks for Apaches Ant build tool
Copyright (C) 2003 Jenkov Development
Jenkov JSP Tree Tag is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Jenkov JSP Tree Tag 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact Details:
---------------------------------
Company: Jenkov Development - www.jenkov.com
Project URL: http://www.jenkov.dk/projects/treetag/treetag.jsp
Email: info@jenkov.com
*/
package com.frameworkset.common.tag.tree.impl;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Iterator;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import org.apache.log4j.Logger;
import com.frameworkset.common.tag.contextmenu.ContextMenu;
import com.frameworkset.common.tag.contextmenu.ContextMenuTag;
import com.frameworkset.common.tag.pager.config.PageConfig;
import com.frameworkset.common.tag.tree.itf.ITree;
import com.frameworkset.common.tag.tree.itf.ITreeIteratorElement;
import com.frameworkset.common.tag.tree.itf.ITreeNode;
/**
*
* <p>Title: com.frameworkset.common.tag.tree.impl.TreeTag.java</p>
*
* <p>Description: </p>
*
* <p>Copyright: Copyright (c) 2007</p>
*
* <p>Company: chinacreator</p>
* @Date 2004-1-15
* @author biaoping.yin
* @version 1.0
*/
public class TreeTag extends ContextMenuTag {
/**
*
*/
private static final long serialVersionUID = 1L;
private static final Logger log = Logger.getLogger(TreeTag.class);
/**
* 定义每棵树的名称，必须是英文，保持在系统中的唯一性
*/
protected String tree = null;
protected String node = null;
protected String level = null;
protected String expanded = null;
protected TreeIterator treeIterator = null;
protected String expandParam = null;
protected String collapseParam = null;
protected String selectParam = null;
protected String includeRootNode = null;
protected String href = null;
protected StringBuilder params = null;
protected boolean enabledynamic = true;
boolean uprecursive = false;
/**
* 双事件控制变量，点击节点时是否展开节点的下一级目录，前提条件是节点要有下一级目录
* false：为不展开，true为展开，缺省为false
*/
private boolean doubleEvent = false;
/**
* 显示模式
* tree：树结构显示所有数据
* list：列表模式显示所有数据
*/
protected String showmode = "tree";
//是否采用jenKov tag
protected String isjenkov = "false";
/**
* 控制树的折叠功能：
* false：不折叠
* true：折叠
* 缺省值：true
*/
protected boolean collapse = true;
/**
* 定义树数据缓冲作用范围：
* request
* session
* pageContext
* 缺省为session
*
*/
private String scope = "session";
/**
* 扩展串，在树节点加一些特殊功能时,比如js函数功能等等，设置该属性
*/
protected String extendString;
/**
* 树的图片路径
*/
protected String imageFolder = "/images/";
/**
* 复选框名称设置
*/
private String checkBox = null;
private String[] checkBoxDefaultValue = null;
private String checkBoxExtention;
private boolean nowrap = true;
private boolean enablecontextmenu = false;
/**
* 控制树的动静态行为属性
*/
private boolean dynamic = true;
/**
* 控制树的数据加载机制：
* static：静态结合加载
* static-dynamic:动静态结合加载
* dynamic：纯动态的树
* 缺省值：dynamic
*/
private String mode = null;
public void setCheckBoxExtention(String checkBoxExtention) {
this.checkBoxExtention = checkBoxExtention;
}
/**
* 单选按钮名称设置
*/
private String radio = null;
private String radioDefaultValue = null;
private String radioExtention;
public void setRadioExtention(String radioExtention) {
this.radioExtention = radioExtention;
}
private String target = null;
private ITree itree = null;
private boolean recursive = false;
private String checkboxOnchange;
private boolean partuprecursive = false;
public void clear()
{
//this.itree = null;
jquery = false;
/**
* 定义每棵树的名称，必须是英文，保持在系统中的唯一性
*/
tree = null;
node = null;
level = null;
expanded = null;
treeIterator = null;
expandParam = null;
collapseParam = null;
selectParam = null;
includeRootNode = null;
href = null;
params = null;
enabledynamic = true;
uprecursive = false;
/**
* 双事件控制变量，点击节点时是否展开节点的下一级目录，前提条件是节点要有下一级目录
* false：为不展开，true为展开，缺省为false
*/
doubleEvent = false;
/**
* 显示模式
* tree：树结构显示所有数据
* list：列表模式显示所有数据
*/
showmode = "tree";
//是否采用jenKov tag
isjenkov = "false";
/**
* 控制树的折叠功能：
* false：不折叠
* true：折叠
* 缺省值：true
*/
collapse = true;
/**
* 定义树数据缓冲作用范围：
* request
* session
* pageContext
* 缺省为session
*
*/
scope = "session";
/**
* 扩展串，在树节点加一些特殊功能时,比如js函数功能等等，设置该属性
*/
extendString = null;
/**
* 树的图片路径
*/
imageFolder = "/images/";
/**
* 复选框名称设置
*/
checkBox = null;
checkBoxDefaultValue = null;
checkBoxExtention = null;
nowrap = true;
enablecontextmenu = false;
/**
* 控制树的动静态行为属性
*/
dynamic = true;
/**
* 控制树的数据加载机制：
* static：静态结合加载
* static-dynamic:动静态结合加载
* dynamic：纯动态的树
* 缺省值：dynamic
*/
mode = null;
/**
* 单选按钮名称设置
*/
radio = null;
radioDefaultValue = null;
radioExtention = null;
target = null;
itree = null;
recursive = false;
checkboxOnchange = null;
partuprecursive = false;
}
/**
* 设置树的图片路径
*/
public void setImageFolder(String folder) {
this.imageFolder = folder;
}
/**
* 获取树的图片路径
*/
public String getImageFolder() {
return this.imageFolder == null ? "/images/" : imageFolder;
}
/**
* 可使用checkbox标签
* @return 复选框名称
*/
public String getCheckBox() {
return checkBox;
}
/**
* @return String
*/
public String getRadio() {
return radio;
}
/**
* @param string
*/
public void setCheckBox(String string) {
checkBox = string;
}
/**
* @param string
*/
public void setRadio(String string) {
radio = string;
}
public String getTree() {
return this.tree;
}
public void setTree(String tree) {
this.tree = tree;
}
public void setIsjenkov(String isjenkov) {
if (isjenkov == null)
return;
isjenkov = isjenkov.trim().toLowerCase();
if (isjenkov.equals("true") || isjenkov.equals("false")) {
this.isjenkov = isjenkov;
}
}
public String getIsjenkov() {
return isjenkov;
}
public String getNode() {
return this.node;
}
public void setNode(String node) {
this.node = node;
}
public String getExpandParam() {
if (this.expandParam == null)
return "expand";
return this.expandParam;
}
public void setExpandParam(String expandParam) {
this.expandParam = expandParam;
}
public String getCollapseParam() {
if (this.collapseParam == null)
return "collapse";
return this.collapseParam;
}
public void setCollapseParam(String collapseParam) {
this.collapseParam = collapseParam;
}
public void setSelectParam(String selectParam) {
this.selectParam = selectParam;
}
public String getSelectParam() {
if (this.selectParam == null)
return "selected";
return this.selectParam;
}
public String getIncludeRootNode() {
if (includeRootNode == null)
return "true";
return includeRootNode;
}
public void setIncludeRootNode(String includeRootNode) {
this.includeRootNode = includeRootNode;
}
protected void validateAttributes() throws JspException {
if (getTree() == null)
throw new JspException("attribute tree must not be null!");
if (getNode() == null)
throw new JspException("attribute node must not be null!");
}
protected boolean isTreeAvailable() throws JspException {
HttpSession session = this.getSession();
if (session != null && session.getAttribute(getTree()) == null) {
return false;
}
return true;
}
public ContextMenu getContextMenu()
{
return getTreeFormScope();
}
protected ITree getTreeFormScope()
{
HttpSession session = this.getSession();
if(session != null && getScope().equals("session"))
return (ITree)session.getAttribute(getTree());
// else if(session != null && getScope().equals("request"))
// return (ITree)session.getAttribute(getTree());
else if( getScope().equals("request"))
return (ITree)request.getAttribute(getTree());
else if(getScope().equals("pageContext"))
return (ITree)pageContext.getAttribute(getTree());
return null;
}
protected void expandCollapseNode() {
HttpServletRequest request = getHttpServletRequest();
String expandId = request.getParameter(getExpandParam());
String collapseId = request.getParameter(getCollapseParam());
//ITree tree = (ITree) session.getAttribute(getTree());
ITree tree = getTreeFormScope();
if (expandId != null) {
if (!tree.isExpanded(expandId))
tree.expand(expandId,this.getMode(),this.getScope(),this.getHttpServletRequest());
} else if (collapseId != null) {
tree.collapse(collapseId);
}
}
protected void select() {
HttpServletRequest request = getHttpServletRequest();
String selectId = request.getParameter(getSelectParam());
HttpSession session = request.getSession(false) ;
if (session != null && selectId != null) {
ITree tree = (ITree) session.getAttribute(getTree());
if (!tree.isSelected(selectId)) {
tree.select(selectId);
}
}
}
private int adoptJenkovStartTagMode() throws JspException {
validateAttributes();
expandCollapseNode();
select();
if (!isTreeAvailable()) {
return SKIP_BODY;
}
HttpServletRequest request = getHttpServletRequest();
HttpSession session = request.getSession(false) ;
if(session == null)
return SKIP_BODY;
ITree tree = (ITree) session.getAttribute(getTree());
this.treeIterator = tree.iterator(getIncludeRootNode().equals("true"));
if (this.treeIterator.hasNext()) {
ITreeIteratorElement element =
(ITreeIteratorElement) this.treeIterator.next();
session.setAttribute(getNode(), element);
return EVAL_BODY_INCLUDE;
}
return SKIP_BODY;
}
private int adoptJenkovAfterBodyTagMode() {
if (this.treeIterator.hasNext()) {
HttpServletRequest request = getHttpServletRequest();
HttpSession session = request.getSession(false) ;
ITreeIteratorElement element =
(ITreeIteratorElement) this.treeIterator.next();
if(session != null)
session.setAttribute(getNode(), element);
return EVAL_BODY_AGAIN;
}
return SKIP_BODY;
}
private boolean StringToBoolean(String value) {
return new Boolean(isjenkov).booleanValue();
}
/**
* TreeTag是经过修改jenKov中的TreeTag得来的，
* 为了保留原有的jenKov树的用法，采用了两种mode，
* 根据isJenkov的值判断采用哪种mode：
* true : 使用jenkov定义的树
* false: 使用修改后的树
*/
public int doStartTag() throws JspException {
params = new StringBuilder();
if (!StringToBoolean(getIsjenkov())) {
return EVAL_BODY_INCLUDE;
} else
return adoptJenkovStartTagMode();
}
public void initContextMenu()
{
}
public int doEndTag() throws JspException {
try{
if (!StringToBoolean(getIsjenkov())) {
Object obj = this.getTreeFormScope();//session.getAttribute(getTree());
if (obj == null) {
log.info("找不到指定类型的树:" + getTree());
return EVAL_PAGE;
}
ITree tree = (ITree) obj;
this.itree = tree;
//validateAttributes();
expandCollapseNode();
select();
JspWriter out = this.getJspWriter();
try {
if(itree.isDynamic())
{
this.treeIterator =
tree.iterator(getIncludeRootNode().equals("true"));
out.print(this.generateContent());
}
else if(itree.isStaticDynamic())
{
String parent_indent = getParent_indent(request);
if(parent_indent != null)
{
this.treeIterator =
tree.iterator(parent_indent);
// request.setAttribute(this.getTree() + "_generateContent",generateContent());
//动静结合的树加载模式
updateFather(tree.getCurExpanded(),this.generateContent());
}
else
{
this.treeIterator =
tree.iterator(getIncludeRootNode().equals("true"));
out.print(this.generateContent());
}
}
else
{
this.treeIterator =
tree.iterator(getIncludeRootNode().equals("true"));
out.print(generateContent());
}
} catch (IOException e) {
e.printStackTrace();
throw new JspException(e.getMessage());
}
// this.istreemenu = true;
super.doEndTag();
// this.istreemenu = false;
return EVAL_PAGE;
}
}
finally
{
}
return EVAL_PAGE;
}
//迁移prototype到jquery时解释
// private void updateFather(ITreeNode node,String sons) throws IOException
// {
// StringBuffer script = new StringBuffer();
//// System.out.println()
// sons = StringUtil.replaceAll(sons,"\"","\\\"");
// sons = StringUtil.replaceAll(sons,"'","\\'");
//
//
// script.append("<script language=\"javascript\">")
// .append("parent.setSon(\"")
// .append(node.getId())
// .append("\",\"")
// .append(sons)
// .append("\",\"")
// .append(node.getSonids() != null? node.getSonids().toString():"")
// .append("\",\"")
// .append((node.getParent() != null ?node
// .getParent().getFatherids().toString():""))
// .append("\");")
// .append("</script>");
// super.getJspWriter().print(script.toString());
// //System.out.println(script.toString());
// }
private void updateFather(ITreeNode node,String sons) throws IOException
{
StringBuilder script = new StringBuilder();
// System.out.println()
// sons = StringUtil.replaceAll(sons,"\"","\\\"");
// sons = StringUtil.replaceAll(sons,"'","\\'");
//
// script.append("<script language=\"javascript\">")
// .append("parent.setSon(\"")
// .append(node.getId())
// .append("\",\"")
// .append(sons)
// .append("\",\"")
// .append(node.getSonids() != null? node.getSonids().toString():"")
// .append("\",\"")
// .append((node.getParent() != null ?node
// .getParent().getFatherids().toString():""))
// .append("\");")
// .append("</script>");
// super.getJspWriter().print(script.toString());
//System.out.println("sonids:" + node.getSonids() != null? node.getSonids().toString():"");
script.append(sons);
out.print(script);
//System.out.println(script.toString());
}
/**
* 获取父的indent
* @return
*/
public static String getParent_indent(HttpServletRequest request)
{
// HttpServletRequest request = getHttpServletRequest();
// HttpSession session = request.getSession(false) ;
String parent_indent = request.getParameter("node_parent_indent");
return parent_indent;
}
public int doAfterBody() throws JspException {
if (StringToBoolean(getIsjenkov())) {
return adoptJenkovAfterBodyTagMode();
}
return SKIP_BODY;
}
/* (non-Javadoc)
* @see com.frameworkset.common.tag.BaseTag#generateContent()
*/
public String generateContent() {
return generateContent(this.treeIterator);
}
private String generateContent(Iterator element) {
StringBuilder ret = new StringBuilder();
String nodeHref = null;
String selfHref = null;
if(href != null)
{
int idx = href.indexOf('|');
if( idx == -1)
nodeHref = href;
else
{
nodeHref = href.substring(0,idx);
selfHref = href.substring(idx + 1);
}
}
HttpServletRequest request = getHttpServletRequest();
// HttpSession session = request.getSession(false) ;
if(selfHref == null || selfHref.trim().equals(""))
{
//没有记录页面的请求参数，在某些情况下将造成树显示不正确
selfHref = request.getRequestURI();
}
if(itree.isDynamic())
{
NodeHelper.getInitScript(ret,request.getParameter("selectedNode"),request.getContextPath());
if(!this.isJquery())
{
ret.append(PageConfig.getJqueryConfig(request)); //jquery
ret.append(PageConfig.getTreeConfig(request,true)); //jquery
ret.append(PageConfig.getPopScript( request, enablecontextmenu)); //jquery
}
NodeHelper.getSelectedScript(ret,itree,this.getTree());
ret.append("<table>");
}
else if(itree.isStaticDynamic())
{
String parent_indent = getParent_indent(request);
if(parent_indent == null)
{
//如果没有有右键菜单并且是静态页面，则需要单独添加prototype函数库脚本
// if(!this.enablecontextmenu) //jquery
// if(!this.isJquery())
// NodeHelper.getPrototypeScript(ret,request,this.enablecontextmenu);
if(!this.isJquery())
{
ret.append(PageConfig.getJqueryConfig(request)); //jquery
ret.append(PageConfig.getTreeConfig(request,true)); //jquery
ret.append(PageConfig.getPopScript( request, enablecontextmenu)); //jquery
}
NodeHelper.getInitScript(ret,request.getParameter("selectedNode"),request.getContextPath());
NodeHelper.getSelectedScript(ret,itree,this.getTree());
}
}
else if(itree.isStatic())
{
// 如果没有有右键菜单并且是静态页面，则需要单独添加prototype函数库脚本
// if(!this.enablecontextmenu)
// if(!this.isJquery())
// NodeHelper.getPrototypeScript(ret,request,this.enablecontextmenu);
if(!this.isJquery())
{
ret.append(PageConfig.getJqueryConfig(request)); //jquery
ret.append(PageConfig.getTreeConfig(request,true)); //jquery
ret.append(PageConfig.getPopScript( request, enablecontextmenu)); //jquery
}
NodeHelper.getInitScript(ret,request.getParameter("selectedNode"),request.getContextPath());
NodeHelper.getSelectedScript(ret,itree,this.getTree());
}
String sonids = null;
if(itree.getCurExpanded() != null && itree.getCurExpanded().getSonids() != null)
sonids = itree.getCurExpanded().getSonids().toString();
if(sonids == null) sonids = "";
boolean needroot = this.getIncludeRootNode().equals("true") ;
boolean lastcollapase = itree.getCurExpanded() != null && itree.getCurExpanded().hasChildren() && treeIterator.getRootElement() != null && treeIterator.getRootElement().isLastChild();
while (this.treeIterator.hasNext()) {
ITreeIteratorElement node =
(ITreeIteratorElement) this.treeIterator.next();
NodeHelper helper = new NodeHelper( node, lastcollapase,request,sonids);
/**
* 设置复选框选中时是否递归选中
*/
// helper.setRecursive(this.isRecursive());
/**
* 设置复选框的onchange事件
*/
helper.setTree(this.itree);
helper.setIncludeRootNode(needroot);
helper.setCheckboxOnchange(this.getCheckboxOnchange());
// helper.setDynamic(this.isDynamic());
helper.setCollapse(this.isCollapse());
helper.setEnablecontextmenu(this.isEnablecontextmenu());
helper.setImageFolder(this.getImageFolder());
helper.setCheckBox(this.getCheckBox());
helper.setRadio(this.getRadio());
helper.setTarget(this.getTarget());
helper.setExtendString(getExtendString());
helper.setCheckBoxDefaultValue(getCheckBoxDefaultValue());
helper.setRadioDefaultValue(getRadioDefaultValue());
helper.setCheckBoxExtention(getCheckBoxExtention());
helper.setRadioExtention(getRadioExtention());
helper.setNowrap(this.isNowrap());
helper.setDoubleEvent(isDoubleEvent());
//记录页面参数
helper.setParams(params.toString());
helper.setScope(this.getScope());
helper.setAction(nodeHref);
helper.setLocalAction(selfHref);
helper.getUpper(ret);
helper.getIndent(ret);
helper.getImageContent(ret);
helper.getNodeContent(ret);
helper.getBoot(ret);
helper = null;
}
//ret.append(NodeHelper.getCatchScript(request));
//NodeHelper.getCatchScript(ret,request);
if(this.isDynamic())
ret.append("</table>");
// else
// ret.append("</div>");
// try
// {
// System.setOut(new PrintStream(new FileOutputStream(new File("d:/first.log"))));
// }
// catch (FileNotFoundException e)
// {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
// System.out.println(ret);
return ret.toString();
}
/* (non-Javadoc)
* @see com.frameworkset.common.tag.BaseTag#write(java.io.OutputStream)
*/
public void write(OutputStream output) {
// TODO Auto-generated method stub
}
/**
* @return String
*/
public String getTarget() {
return target;
}
/**
* @param string
*/
public void setTarget(String string) {
target = string;
}
/**
* @return String
*/
public String getHref() {
return href;
}
/**
* @param string
*/
public void setHref(String string) {
href = string;
}
/**
* @return String
*/
public String getExtendString() {
return extendString;
}
/**
* @param string
*/
public void setExtendString(String string) {
extendString = string;
}
public void setCheckBoxDefaultValue(String[] string) {
this.checkBoxDefaultValue = string;
}
/**
* 参见checkbox标签
* @return String
*/
public String[] getCheckBoxDefaultValue() {
return checkBoxDefaultValue;
}
/**
* @return String
*/
public String getRadioDefaultValue() {
return radioDefaultValue;
}
/**
* @param string
*/
public void setRadioDefaultValue(String string) {
radioDefaultValue = string;
}
/**
* 参见checkbox标签
* @return String
*/
public String getCheckBoxExtention() {
return checkBoxExtention;
}
/**
* @return String
*/
public String getRadioExtention() {
return radioExtention;
}
public static void main(String[] args)
{
java.util.StringTokenizer token = new java.util.StringTokenizer("a|b","|");
System.out.println(token.countTokens());
while(token.hasMoreTokens())
{
System.out.println(token.nextToken());
}
System.out.println();
token = new java.util.StringTokenizer("a|","|");
System.out.println(token.countTokens());
while(token.hasMoreTokens())
{
System.out.println(token.nextToken());
}
System.out.println();
token = new java.util.StringTokenizer("|b","|");
System.out.println(token.countTokens());
while(token.hasMoreTokens())
{
System.out.println(token.nextToken());
}
}
/**
* Description:
* @return
* String
*/
public String getScope() {
return scope;
}
/**
* Description:
* @param string
* void
*/
public void setScope(String string) {
scope = string;
}
/**
* @return Returns the showmode.
*/
public String getShowmode() {
return showmode;
}
/**
* @param showmode The showmode to set.
*/
public void setShowmode(String showmode) {
this.showmode = showmode;
}
/**
* @return Returns the collapse.
*/
public boolean isCollapse() {
return collapse;
}
public boolean isNowrap() {
return nowrap;
}
public boolean isDoubleEvent() {
return doubleEvent;
}
/**
* @param collapse The collapse to set.
*/
public void setCollapse(boolean collapse) {
this.collapse = collapse;
}
public void addParam(String name,String value)
{
if(params == null )
{
params = new StringBuilder(0);
}
if(params.length() == 0)
{
params.append(name).append("=").append(value);
}
else
params.append("&").append(name)
.append("=").append(value);
}
public void setNowrap(boolean nowrap) {
this.nowrap = nowrap;
}
public void setDoubleEvent(boolean doubleEvent) {
this.doubleEvent = doubleEvent;
}
public boolean isEnablecontextmenu() {
return enablecontextmenu;
}
public void setEnablecontextmenu(boolean enablecontextmenu) {
this.enablecontextmenu = enablecontextmenu;
}
public boolean isEnabledynamic()
{
return enabledynamic;
}
public void setEnabledynamic(boolean enabledynamic)
{
this.enabledynamic = enabledynamic;
}
public boolean isDynamic()
{
return Tree.mode_dynamic.equals(mode);
}
public void setDynamic(boolean dynamic)
{
if(dynamic)
this.mode = Tree.mode_dynamic;
else
this.mode = Tree.mode_static;
}
public void setRecursive(boolean recursive)
{
this.recursive = recursive;
}
public void setCheckboxOnchange(String onchange)
{
this.checkboxOnchange = onchange;
}
public String getCheckboxOnchange()
{
return checkboxOnchange;
}
public boolean isRecursive()
{
return recursive;
}
public String getMode() {
return mode;
}
public void setMode(String mode) {
this.mode = mode;
}
public boolean isUprecursive() {
return uprecursive;
}
public void setUprecursive(boolean uprecursive) {
this.uprecursive = uprecursive;
}
public void setPartuprecursive(boolean partuprecursive)
{
this.partuprecursive = partuprecursive;
}
public boolean isPartuprecursive()
{
return partuprecursive;
}
@Override
public void doFinally() {
clear();
super.doFinally();
}
}