tablebean.java

GridSphere 门户 提供一个基于 portlet 的高级开放源代码门户。GridSphere 是在欧盟提供基金的 GridLab 项目下开发的

/*
 * @author <a href="mailto:[e-mail]">Jason Novotny</a>
 * @version $Id: TableBean.java 4870 2006-06-23 15:36:06Z novotny $
 */
package org.gridsphere.provider.portletui.beans;

import org.gridsphere.provider.portletui.model.DefaultTableModel;
import org.gridsphere.services.core.persistence.QueryFilter;

/**
 * A <code>TableBean</code> provides a table element
 */
public class TableBean extends BaseComponentBean implements TagBean {

    public static final String CURRENT_PAGE = "tablepage";
    public static final String SHOW_ALL = "showall";
    public static final String SHOW_PAGES = "showpages";

    public static final String NEXT_PAGE = "nextpage";
    public static final String PREV_PAGE = "prevpage";

    protected DefaultTableModel defaultModel = null;
    protected String cellSpacing = null;
    protected String cellPadding = null;
    protected String border = null;
    protected String background = null;
    protected String width = null;
    protected String align = null;
    protected String valign = null;
    protected int currentPage = 0;
    protected boolean isSortable = false;
    protected boolean isZebra = false;
    protected String sortableId = "t1";
    private int rowCount = 0;
    private int maxRows = -1;
    private boolean showall = false;
    protected String uris = "";
    protected String uriString = "";
    protected String title = null;
    protected int numEntries = 0;
    protected boolean filter = false;

    /**
     * Constructs a default table bean
     */
    public TableBean() {
        super();
    }

    /**
     * Constructs a table bean with a supplied CSS style
     *
     * @param cssStyle the CSS style
     */
    public TableBean(String cssStyle) {
        this.cssClass = cssStyle;
    }

    public void setQueryFilter(QueryFilter filter) {
        this.numEntries = filter.getTotalItems();
        this.maxRows = filter.getMaxResults();
        this.filter = true;
    }

    /**
     * Sets the default table model for this table
     *
     * @param defaultModel the table model
     */
    public void setTableModel(DefaultTableModel defaultModel) {
        this.defaultModel = defaultModel;
    }

    /**
     * Returns the default table model
     *
     * @return the default table model
     */
    public DefaultTableModel getTableModel() {
        return defaultModel;
    }

    /**
     * Returns true if a query filter is associated with this table
     *
     * @return true if a query filter is associated with this table
     */
    public boolean getFilter() {
        return filter;
    }

    public void setFilter(boolean filter) {
        this.filter = filter;
    }

    public int getNumEntries() {
        return numEntries;
    }

    public void setNumEntries(int numEntries) {
        this.numEntries = numEntries;
    }

    /**
     * Sets the table width
     *
     * @param width the table width
     */
    public void setWidth(String width) {
        this.width = width;
    }

    /**
     * Returns the table width
     *
     * @return the table width
     */
    public String getWidth() {
        return width;
    }

    /**
     * Sets the table alignment e.g. "left", "center" or "right"
     *
     * @param align the table alignment
     */
    public void setAlign(String align) {
        this.align = align;
    }

    /**
     * Returns the table alignment e.g. "left", "center" or "right"
     *
     * @return the table alignment
     */
    public String getAlign() {
        return align;
    }

    /**
     * Returns the table vertical alignment e.g. 'top', 'bottom'
     *
     * @return the table vertical alignment
     */
    public String getValign() {
        return valign;
    }

    /**
     * Sets the table horizontal alignment, e.g. 'top', 'bottom'
     *
     * @param valign the tables horizontal alignment
     */
    public void setValign(String valign) {
        this.valign = valign;
    }

    /**
     * Sets the table cell spacing
     *
     * @param cellSpacing the table cell spacing
     */
    public void setCellSpacing(String cellSpacing) {
        this.cellSpacing = cellSpacing;
    }

    /**
     * Returns the table cell spacing
     *
     * @return the table cell spacing
     */
    public String getCellSpacing() {
        return cellSpacing;
    }

    /**
     * Sets the table cell spacing
     *
     * @param cellPadding the table cell padding
     */
    public void setCellPadding(String cellPadding) {
        this.cellPadding = cellPadding;
    }

    /**
     * Returns the table cell padding
     *
     * @return the table cell padding
     */
    public String getCellPadding() {
        return cellPadding;
    }

    /**
     * Sets the table background
     *
     * @param background the table background
     */
    public void setBackground(String background) {
        this.background = background;
    }

    /**
     * Returns the table background
     *
     * @return the table background
     */
    public String getBackground() {
        return background;
    }

    /**
     * Sets the table border
     *
     * @param border the table border
     */
    public void setBorder(String border) {
        this.border = border;
    }

    /**
     * Returns the tableborder
     *
     * @return the table border
     */
    public String getBorder() {
        return border;
    }

    public void setZebra(boolean isZebra) {
        this.isZebra = isZebra;
    }

    public boolean getZebra() {
        return isZebra;
    }

    public void setSortable(boolean isSortable) {
        this.isSortable = isSortable;
    }

    public boolean getSortable() {
        return isSortable;
    }

    public void setSortableID(String sortableId) {
        this.sortableId = sortableId;
    }

    public String getSortableID() {
        return sortableId;
    }

    public void setRowCount(int rowCount) {
        this.rowCount = rowCount;
    }

    public int getRowCount() {
        return rowCount;
    }

    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }

    public int getCurrentPage() {
        return currentPage;
    }

    public void setMaxRows(int maxRows) {
        this.maxRows = maxRows;
    }

    public int getMaxRows() {
        return maxRows;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public boolean isShowall() {
        return showall;
    }

    public void setShowall(boolean showall) {
        this.showall = showall;
    }

    public void setURIString(String uriString) {
        this.uriString = uriString;
    }

    public String toStartString() {
        StringBuffer sb = new StringBuffer();
        if (isSortable) {
            sb.append("<table class=\"sortable\" id=\"" + sortableId + "\" ");
        } else {
            sb.append("<table" + getFormattedCss());
        }
        if (cellSpacing != null) sb.append(" cellspacing=\"" + cellSpacing + "\" ");
        if (cellPadding != null) sb.append(" cellpadding=\"" + cellPadding + "\" ");
        if (border != null) sb.append(" border=\"" + border + "\" ");
        if (width != null) sb.append(" width=\"" + width + "\" ");
        if (align != null) sb.append(" align=\"" + align + "\" ");
        /// Removed for XHTML 1.0 Strict compliance
        /*
        if (valign != null) {
            sb.append(" valign=\"" + valign + "\" ");
        }
        */
        sb.append(">");
        if (title != null) sb.append("<caption>" + title + "</caption>");
        if (defaultModel != null) sb.append(defaultModel.toStartString());
        return sb.toString();
    }

    public String toEndString() {
        StringBuffer sb = new StringBuffer();
        sb.append("</table>");
        String uri = "";
        if (showall) {
            uri = uriString;
            sb.append("<p>"); // added for XHTML 1.0 Strict compliance
            String showPages = TableBean.SHOW_PAGES;
            showPages = "rp_" + showPages;
            sb.append("<a href=\"" + uri + "&amp;" + showPages + "\">" + this.getLocalizedText("SHOW_PAGES") + "</a>");
            sb.append("</p>"); // added for XHTML 1.0 Strict compliance
        }
        if (maxRows > 0) {
            int numpages = 0;
            // formula to figure out how many pages there should be-- if it divides evenly then
            // use that, otherwise need to add 1
            if (numEntries != 0) {
                numpages = numEntries / maxRows;
                numpages += numEntries % maxRows > 0 ? 1 : 0;
            } else {
                numpages = rowCount / maxRows;
                numpages += rowCount % maxRows > 0 ? 1 : 0;
            }

            //System.err.println("numpages = " + numpages);
            int dispPage = currentPage + 1;
            if ((dispPage == numpages) && (numpages == 1)) return sb.toString();
            int c = 0;
            //System.err.println("maxrows=" + maxRows + " numEntries=" + numEntries + " rowCount=" + rowCount + " numpages=" + numpages);

            sb.append("<p>"); // added for XHTML 1.0 Strict compliance  
            sb.append(this.getLocalizedText("PAGE") + dispPage + this.getLocalizedText("OUT_OF_PAGES") + numpages);

            for (int i = 0; i < numpages; i++) {
                c = i + 1;
                if (c == dispPage) {
                    sb.append(" | <b>" + c + "</b>");
                } else {
                    // create an actionlink
                    uris = uriString;
                    //System.err.println("uri = " + uris);
                    String curPage = TableBean.CURRENT_PAGE;
                    curPage = "rp_" + curPage;
                    uri = uris + "?" + curPage + "=" + i;
                    sb.append(" | " + "<a href=\"" + uri + "\">" + c + "</a>");
                }
            }
            if (!filter) {
                uri = uriString;
                sb.append(" | ");
                String showall = TableBean.SHOW_ALL;
                showall = "rp_" + TableBean.SHOW_ALL;
                sb.append("<a href=\"" + uri + "?" + showall + "\">" + this.getLocalizedText("SHOW_ALL") + "</a>");
            }
            sb.append("</p>"); // added for XHTML 1.0 Strict compliance
            rowCount = 0;
        }
        return sb.toString();
    }
}