/*
Copyright (c) 2003-2009 ITerative Consulting Pty Ltd. All Rights Reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted
provided that the following conditions are met:
o Redistributions of source code must retain the above copyright notice, this list of conditions and
the following disclaimer.
o 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.
o This jcTOOL Helper Class software, whether in binary or source form may not be used within,
or to derive, any other product without the specific prior written permission of the copyright holder
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS "AS IS" AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.
*/
package HTTP.ForteTag;
import java.io.IOException;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyContent;
import org.apache.log4j.Logger;
import HTTP.ResultSet;
/**
* Performs a loop. Used to dynamically generate tables, lists, and so on.
*
*/
@SuppressWarnings("serial")
public class IterateTag extends ForteTag {
private String resultSet = null;
private String iterator = null;
private String resultMember = null;
private int start = 1;
private int end = 0;
private IterateResultSet iterateResultSet = null;
public int getEnd()
{
return end;
}
public void setEnd(String pEnd)
{
try
{
this.setEnd(Integer.parseInt(pEnd));
}
catch (NumberFormatException nfe)
{
Logger.getLogger("Iterate").error("Iterate tag was passed '" + pEnd + "' as the pEnd parameter, which is non-integral.", nfe);
this.setEnd(0);
}
}
public void setEnd(int pEnd)
{
end = pEnd;
}
public String getIterator()
{
return iterator;
}
public void setIterator(String pIterator)
{
this.iterator = pIterator;
}
public String getResultMember()
{
return resultMember;
}
public void setResultMember(String pResultMember)
{
this.resultMember = pResultMember;
}
public String getResultSet()
{
return resultSet;
}
public void setResultSet(String pResultSet)
{
this.resultSet = pResultSet;
}
public int getStart()
{
return start;
}
private IterateResultSet getIterateResultSet()
{
return iterateResultSet;
}
private void setIterateResultSet(IterateResultSet pIterateResultSet)
{
this.iterateResultSet = pIterateResultSet;
}
public void setStart(String pStart)
{
try
{
this.setStart(Integer.parseInt(pStart));
}
catch (NumberFormatException nfe)
{
Logger.getLogger("Iterate").error("Iterate tag was passed '" + pStart + "' as the pStart parameter, which is non-integral.", nfe);
this.setStart(1);
}
}
public void setStart(int pStart)
{
this.start = pStart;
}
public int doStartTag() throws JspException
{
this.setIterateResultSet(new IterateResultSet());
ResultSet rs = (ResultSet) pageContext.getAttribute(getResultSet(), RESULT_SET_SCOPE);
this.getIterateResultSet().setIndex(this.getStart());
this.getIterateResultSet().setResultSet(rs);
this.getIterateResultSet().setMemberName(this.getResultMember());
pageContext.setAttribute(this.getIterator(), this.getIterateResultSet(), RESULT_SET_SCOPE);
if (this.getEnd() <= 0 || this.getIterateResultSet().getIndex() <= this.getEnd())
{
if (rs != null)
{
if (this.getIterateResultSet().getIndex() <= rs.listItems(this.getResultMember()))
{
return EVAL_BODY_BUFFERED;
}
}
else
{
return EVAL_BODY_BUFFERED;
}
}
return SKIP_BODY;
}
public int doAfterBody()
{
try
{
BodyContent body = getBodyContent();
JspWriter out = body.getEnclosingWriter();
out.println(body.getString());
body.clearBody();// Set up for next iteration
}
catch (IOException ioe)
{
Logger.getLogger("IterateTag").error("Error in iterate tag with index " + this.getIterateResultSet().getIndex() + " on result set " + this.getResultSet(), ioe);
}
if (this.getEnd() <= 0 || this.getIterateResultSet().getIndex() < this.getEnd())
{
this.getIterateResultSet().incrementIndex();
ResultSet rs = (ResultSet) pageContext.getAttribute(getResultSet(), RESULT_SET_SCOPE);
if (rs != null)
{
if (this.getIterateResultSet().getIndex() <= rs.listItems(this.getResultMember()))
{
return EVAL_BODY_BUFFERED;
}
}
else
{
return EVAL_BODY_BUFFERED;
}
}
pageContext.removeAttribute(this.getIterator(), RESULT_SET_SCOPE);
return SKIP_BODY;
}
}