sorthtmltabletag.java

软件测试经典书籍<<Junit in action>>里的源代码。

/*
 * =================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001-2003 The Apache Software Foundation.  All 
 * rights reserved.
 *
 * Redistribution and use in source and binary forms, with or 
 * without modification, are permitted provided that the following 
 * conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above 
 *    copyright notice, this list of conditions and the following 
 *    disclaimer in the documentation and/or other materials 
 *    provided with the distribution.
 *
 * 3. The end-user documentation included with the redistribution, 
 *    if any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software 
 *    itself, if and wherever such third-party acknowlegements 
 *    normally appear.
 *
 * 4. The names "The Jakarta Project", "junitbook", "jia", 
 *    "JUnit in Action" and "Apache Software Foundation" must not be 
 *    used to endorse or promote products derived from this software 
 *    without prior written permission. For written permission, 
 *    please contact [e-mail].
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 * =================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For 
 * more information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */
package junitbook.pages;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyContent;
import javax.servlet.jsp.tagext.BodyTagSupport;

public class SortHtmlTableTag extends BodyTagSupport
{
    private String sortOrder = "ascending";
    private int sortColumn = 1; 
         
    public void setOrder(String sortOrder)
    {
        this.sortOrder = sortOrder;
    }
    
    public void setColumn(int sortColumn)
    {
        this.sortColumn = sortColumn;
    }
    
    public int doAfterBody() throws JspException
    {
        // The body content has been evaluated, now we need to 
        // parse it and sort the table lines.
        BodyContent body = getBodyContent();
        String content = body.getString();
        body.clearBody();

        try 
        {
            getPreviousOut().print(sortHtmlTable(content));
        }
        catch (Exception e)
        {
            throw new JspException("Failed to sort body content ["
                + content + "]", e);
        }
        
        return SKIP_BODY;
    } 

    private String sortHtmlTable(String content)
    {
        // Algorithm skipped :-)
        return content;
    }
}