package cn.ksource.core.web;
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import java.util.ArrayList;
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import java.util.List;
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import javax.servlet.http.HttpServletRequest;
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import org.apache.commons.lang.StringUtils;
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import cn.ksource.core.util.StringUtil;
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public class SplitPage {
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private int infoCount; //��Ϣ����
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private int pageSize; //ÿҳ��Ϣ����
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private int currentPageIndex; //��ǰҳ��
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private int pageCount; //��ҳ��
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private int page;
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private boolean hasNext; //�Ƿ��к�ҳ
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private boolean hasPrevious; //�Ƿ���ǰҳ
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private HttpServletRequest request;
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public SplitPage(){
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}
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public SplitPage(int pageSize,HttpServletRequest request){
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this.pageSize = pageSize;
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this.request = request;
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}
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public SplitPage(int pageSize,int currentPageIndex){
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this.pageSize = pageSize;
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this.currentPageIndex = currentPageIndex;
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}
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public SplitPage setInfo(int pageSize,int currentPageIndex){
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this.pageSize = pageSize;
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this.currentPageIndex = currentPageIndex;
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return this;
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}
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public HttpServletRequest getRequest() {
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return request;
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}
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public void setRequest(HttpServletRequest request) {
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String currentPageIndex = request.getParameter("currentPageIndex");
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if (StringUtils.isBlank(currentPageIndex)) {
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currentPageIndex = "1";
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}
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setCurrentPageIndex(Integer.parseInt(currentPageIndex));
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this.request = request;
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}
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public int getInfoCount() {
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return infoCount;
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}
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public void setInfoCount(int infoCount) {
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this.infoCount = infoCount;
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}
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public int getPageSize() {
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return pageSize;
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}
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public void setPageSize(int pageSize) {
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this.pageSize = pageSize;
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}
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public int getCurrentPageIndex() {
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String pageIndex = Integer.valueOf(this.currentPageIndex) == null || this.currentPageIndex == 0 ?
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(StringUtils.isBlank(request.getParameter("pageindex")) ? "0" : request.getParameter("pageindex"))
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:
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String.valueOf(currentPageIndex);
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// String pageIndex = Integer.valueOf(this.currentPageIndex) == null ? request.getParameter("pageindex") : String.valueOf(currentPageIndex);
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if (StringUtils.isBlank(pageIndex) || StringUtils.equals("0", pageIndex)) {
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this.currentPageIndex = 1;
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return this.currentPageIndex;
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}
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if (StringUtil.isInteger(pageIndex)) {
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this.currentPageIndex = Integer.valueOf(pageIndex);
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if (this.currentPageIndex < 0) {
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this.currentPageIndex = 1;
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} else if (this.currentPageIndex > getPageCount()) {
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this.currentPageIndex = pageCount;
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}
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} else {
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this.currentPageIndex = 1;
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}
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return currentPageIndex;
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}
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public void setCurrentPageIndex(int currentPageIndex) {
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this.currentPageIndex = currentPageIndex;
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}
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public int getPageCount() {
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if (infoCount == 0) {
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this.pageCount = 1;
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return pageCount;
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}
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if (infoCount/pageSize == 0) {
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this.pageCount = 1;
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return pageCount;
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}
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if (infoCount%pageSize == 0) {
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this.pageCount = infoCount/pageSize;
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return pageCount;
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}
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this.pageCount = infoCount/pageSize+1;
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return pageCount;
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}
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public void setPageCount(int pageCount) {
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this.pageCount = pageCount;
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}
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public boolean isHasNext() {
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if (getCurrentPageIndex() < getPageCount()) {
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this.hasNext = true;
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} else {
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this.hasNext = false;
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}
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return hasNext;
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}
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public void setHasNext(boolean hasNext) {
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this.hasNext = hasNext;
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}
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public boolean isHasPrevious() {
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if (getCurrentPageIndex() > 1) {
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this.hasPrevious = true;
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} else {
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this.hasPrevious = false;
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}
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return hasPrevious;
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}
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public void setHasPrevious(boolean hasPrevious) {
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this.hasPrevious = hasPrevious;
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}
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public List<Integer> getPageList(){
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List<Integer> list = new ArrayList<Integer>();
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int j = 0;
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int count = getPageCount();
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int current = getCurrentPageIndex();
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// if (current < 10) {
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// j = 0;
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// count = getPageCount() > 10 ? 10 : getPageCount();
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// }
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// if (current > 10 && current < 15) {
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// j = 5;
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// count = getPageCount() > 15 ? 15 : getPageCount();
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// }
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// if (current > 15 && current < 20) {
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// j = 10;
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// count = getPageCount() > 20 ? 20 : getPageCount();
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// }
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for (int i = j ; i<count;i++) {
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list.add(i+1);
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}
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return list;
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}
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/**
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* ��������ȡ�õ�ǰҳ���URL<BR>
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* @return
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* @author:�<BR>
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* ʱ�䣺Apr 18, 2009 9:15:27 PM<BR>
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*/
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public String getUrl() {
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String queryParam = request.getQueryString();
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if (StringUtils.isBlank(queryParam)) {
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return request.getRequestURI()+"?";
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} else {
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String[] params = queryParam.split("&");
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String strQuery = "";
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for (String string : params) {
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if (!StringUtils.contains(string, "currentPageIndex")) {
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strQuery += string + "&";
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}
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}
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return request.getRequestURI() + "?" + strQuery;
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}
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}
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public void setUrl(String url){
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}
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public int getPage() {
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return page;
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}
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public void setPage(int page) {
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this.page = page;
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}
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}
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