Package org.olat.ims.qti.process.elements

Source Code of org.olat.ims.qti.process.elements.QTI_vargte

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/

package org.olat.ims.qti.process.elements;

import org.dom4j.Element;
import org.olat.ims.qti.container.ItemContext;
import org.olat.ims.qti.container.ItemInput;
/**
*
*/
public class QTI_vargte implements BooleanEvaluable {

  /**
   * var greater than or equal
   * qti ims 1.2.1
   * <!ELEMENT vargte (#PCDATA)>
   * <!ATTLIST vargte  %I_RespIdent;
                   %I_Index; >
   * e.g. <vargte respident = "NUM01">3.141</vargte>
   */
  public boolean eval(Element boolElement, ItemContext userContext, EvalContext ect) {
    ItemInput iinp = userContext.getItemInput();
    if (iinp.isEmpty()) return false; // user has given no answer   
    String respident = boolElement.attributeValue("respident");
    String shouldVal = boolElement.getText(); // the answer is tested against content of elem.
    String isVal = iinp.getSingle(respident);
    // the isVal and shouldVal must be numeric
    // we use Float so we are on the safe side, even if comparison was only Integer
    shouldVal = shouldVal.trim();
    isVal = isVal.trim();
    Float fs = new Float(shouldVal);
    Float fi = new Float(isVal);
    boolean ok = (fi.floatValue() >= fs.floatValue());
    return ok;
  }

}
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