opendap/src/main/java/opendap/servlet/ReqState.java
private String prepCE(String ce) {

    int index;

    //System.out.println("- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ");
    //System.out.println("Prepping: \""+ce+"\"");

    if (ce == null) {
      ce = "";
      //System.out.println("null Constraint expression.");
    } else if (!ce.equals("")) {

      //System.out.println("Searching for:  %");
      index = ce.indexOf("%");
      //System.out.println("index of %: "+index);

      if (index == -1)
        return (ce);

      if (index > (ce.length() - 3))
        return (null);

      while (index >= 0) {
        //System.out.println("Found % at character " + index);

        String specChar = ce.substring(index + 1, index + 3);
        //System.out.println("specChar: \"" + specChar + "\"");

        // Convert that bad boy!
        char val = (char) Byte.parseByte(specChar, 16);
        //System.out.println("                val: '" + val + "'");
        //System.out.println("String.valueOf(val): \"" + String.valueOf(val) + "\"");


        ce = ce.substring(0, index) + String.valueOf(val) + ce.substring(index + 3, ce.length());
        //System.out.println("ce: \"" + ce + "\"");

        index = ce.indexOf("%");
        if (index > (ce.length() - 3))
          return (null);
      }
    }

//      char ca[] = ce.toCharArray();
//	for(int i=0; i<ca.length ;i++)
//	    System.out.print("'"+(byte)ca[i]+"' ");
//	System.out.println("");
//	System.out.println(ce);
//	System.out.println("- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ");

//        System.out.println("Returning CE: \""+ce+"\"");
    return (ce);
  }
private String prepCE(String ce) {

    int index;

    //System.out.println("- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ");
    //System.out.println("Prepping: \""+ce+"\"");

    if (ce == null) {
      ce = "";
      //System.out.println("null Constraint expression.");
    } else if (!ce.equals("")) {

      //System.out.println("Searching for:  %");
      index = ce.indexOf("%");
      //System.out.println("index of %: "+index);

      if (index == -1)
        return (ce);

      if (index > (ce.length() - 3))
        return (null);

      while (index >= 0) {
        //System.out.println("Found % at character " + index);

        String specChar = ce.substring(index + 1, index + 3);
        //System.out.println("specChar: \"" + specChar + "\"");

        // Convert that bad boy!
        char val = (char) Byte.parseByte(specChar, 16);
        //System.out.println("                val: '" + val + "'");
        //System.out.println("String.valueOf(val): \"" + String.valueOf(val) + "\"");


        ce = ce.substring(0, index) + String.valueOf(val) + ce.substring(index + 3, ce.length());
        //System.out.println("ce: \"" + ce + "\"");

        index = ce.indexOf("%");
        if (index > (ce.length() - 3))
          return (null);
      }
    }

//      char ca[] = ce.toCharArray();
//	for(int i=0; i<ca.length ;i++)
//	    System.out.print("'"+(byte)ca[i]+"' ");
//	System.out.println("");
//	System.out.println(ce);
//	System.out.println("- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ");

//        System.out.println("Returning CE: \""+ce+"\"");
    return (ce);
  }
private String prepCE ( String ce ) { int index ; //System.out.println("- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "); //System.out.println("Prepping: \""+ce+"\""); if ( ce == null ) { ce = "" ; //System.out.println("null Constraint expression."); } else if ( ! ce . equals ( "" ) ) { //System.out.println("Searching for:  %"); index = ce . indexOf ( "%" ) ; //System.out.println("index of %: "+index); if ( index == - 1 ) return ( ce ) ; if ( index > ( ce . length ( ) - 3 ) ) return ( null ) ; while ( index >= 0 ) { //System.out.println("Found % at character " + index); String specChar = ce . substring ( index + 1 , index + 3 ) ; //System.out.println("specChar: \"" + specChar + "\""); // Convert that bad boy! char val = ( char ) Byte . parseByte ( specChar , 16 ) ; //System.out.println("                val: '" + val + "'"); //System.out.println("String.valueOf(val): \"" + String.valueOf(val) + "\""); ce = ce . substring ( 0 , index ) + String . valueOf ( val ) + ce . substring ( index + 3 , ce . length ( ) ) ; //System.out.println("ce: \"" + ce + "\""); index = ce . indexOf ( "%" ) ; if ( index > ( ce . length ( ) - 3 ) ) return ( null ) ; } } //      char ca[] = ce.toCharArray(); //	for(int i=0; i<ca.length ;i++) //	    System.out.print("'"+(byte)ca[i]+"' "); //	System.out.println(""); //	System.out.println(ce); //	System.out.println("- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "); //        System.out.println("Returning CE: \""+ce+"\""); return ( ce ) ; }
*************************************************************************
This method is used to convert special characters into their
actual byte values.
<p/>
For example, in a URL the space character
is represented as "%20" this method will replace that with a
space charater. (a single value of 0x20)

@param ce The constraint expresion string as collected from the request
object with <code>getQueryString()</code>
@return A string containing the prepared constraint expression. If there
is a problem with the constraint expression a <code>null</code> is returned.
************************************************************************* This method is used to convert special characters into their actual byte values . <p / > For example in a URL the space character is represented as %20 this method will replace that with a space charater . ( a single value of 0x20 )