/*
    * Licensed under the GPL License. You may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *   https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
    *
    * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
    * WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
    * PURPOSE.
   */
  package psiprobe.jsp;
  
  import java.io.IOException;
  
  import javax.servlet.jsp.JspException;
  import javax.servlet.jsp.JspWriter;
  import javax.servlet.jsp.tagext.BodyTagSupport;
  
  import org.apache.commons.text.StringEscapeUtils;
  
  /**
   * The Class OutTag.
   */
  public class OutTag extends BodyTagSupport {
  
    /** The Constant serialVersionUID. */
    private static final long serialVersionUID = 1L;
  
    /** The max length. */
    private int maxLength = -1;
  
    /** The ellipsis right. */
    private boolean ellipsisRight = true;
  
    /** The value. */
    private transient Object value;
  
    /**
     * Gets the value.
     *
     * @return the value
     */
    public Object getValue() {
      return value;
    }
  
    /**
     * Sets the value.
     *
     * @param value the new value
     */
    public void setValue(Object value) {
      this.value = value;
    }
  
    /**
     * Gets the max length.
     *
     * @return the max length
     */
    public int getMaxLength() {
      return maxLength;
    }
  
    /**
     * Sets the max length.
     *
     * @param maxLength the new max length
     */
    public void setMaxLength(int maxLength) {
      this.maxLength = maxLength;
    }
  
    /**
     * Checks if is ellipsis right.
     *
     * @return true, if is ellipsis right
     */
    public boolean isEllipsisRight() {
      return ellipsisRight;
    }
  
    /**
     * Sets the ellipsis right.
     *
     * @param ellipsisRight the new ellipsis right
     */
    public void setEllipsisRight(boolean ellipsisRight) {
      this.ellipsisRight = ellipsisRight;
    }
  
    @Override
    public int doStartTag() throws JspException {
      if (value != null) {
        print(value.toString(), pageContext.getOut());
        return SKIP_BODY;
      }
      return super.doStartTag();
    }
 
   @Override
   public int doAfterBody() throws JspException {
     print(getBodyContent().getString().trim(), getBodyContent().getEnclosingWriter());
     return SKIP_BODY;
   }
 
   /**
    * Prints the.
    *
    * @param displayValue the display value
    * @param out the out
    *
    * @throws JspException the jsp exception
    */
   private void print(String displayValue, JspWriter out) throws JspException {
     try {
       if (maxLength != -1 && displayValue.length() > maxLength) {
         String newValue;
         if (ellipsisRight) {
           newValue = displayValue.substring(0, maxLength - 3) + "...";
         } else {
           newValue = "..." + displayValue.substring(displayValue.length() - maxLength + 3);
         }
         String title = StringEscapeUtils.escapeHtml4(displayValue);
         out.print("<span title=\"" + title + "\">" + newValue + "</span>");
       } else {
         out.print(displayValue);
       }
     } catch (IOException e) {
       throw new JspException(e);
     }
   }
 
 }