SplitStringTag.java

/*
* Copyright 2012, CMM, University of Queensland.
*
* This file is part of Paul.
*
* Paul is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Paul 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Paul. If not, see <http://www.gnu.org/licenses/>.
*/
package au.edu.uq.cmm.paul.tag;

import java.io.IOException;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.SimpleTagSupport;

public class SplitStringTag extends SimpleTagSupport {
    
    private int width = 8;
    private String value = "";
    private String separator = " ";

    public final int getWidth() {
        return width;
    }

    public final void setWidth(int width) {
        this.width = width;
    }

    public final String getValue() {
        return value;
    }

    public final void setValue(String value) {
        this.value = value;
    }

    public final String getSeparator() {
        return separator;
    }

    public final void setSeparator(String separator) {
        this.separator = separator;
    }

    @Override
    public void doTag() throws JspException, IOException {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < value.length(); i++) {
            if (i > 0 && i % width == 0) {
                sb.append(separator);
            }
            sb.append(value.charAt(i));
        }
        getJspContext().getOut().write(sb.toString());
    }

}