/********************************************************* begin of preamble
**
** Copyright (C) 2003-2010 Software- und Organisations-Service GmbH.
** All rights reserved.
**
** This file may be used under the terms of either the
**
** GNU General Public License version 2.0 (GPL)
**
** as published by the Free Software Foundation
** http://www.gnu.org/licenses/gpl-2.0.txt and appearing in the file
** LICENSE.GPL included in the packaging of this file.
**
** or the
**
** Agreement for Purchase and Licensing
**
** as offered by Software- und Organisations-Service GmbH
** in the respective terms of supply that ship with this file.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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.
********************************************************** end of preamble*/
/*
* Created on 20.10.2008
*
* To change the template for this generated file go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
package sos.scheduler.consoleviews.events;
import java.util.HashMap;
import java.util.StringTokenizer;
import sos.util.string2bool.SOSBooleanExpression;
import sos.util.string2bool.SOSMalformedBooleanException;
public class BooleanExp {
private String boolExp;
public BooleanExp(String boolExp_) {
super();
this.boolExp = boolExp_;
boolExp = boolExp.replaceAll(" and ", " && ");
boolExp = boolExp.replaceAll("not ", "! ");
boolExp = boolExp.replaceAll(" or ", " || ");
boolExp = boolExp.replaceAll ("[ ]{2,}"," "); // Viele Leerzeichen in 1 Leerzeichen
boolExp = boolExp.trim();
}
public void replace(String s1, String s2) {
boolExp = boolExp.replaceAll(s1, s2);
}
public boolean evaluateExpression () {
SOSBooleanExpression boolExpr = null;
HashMap allowedToken=new HashMap();
allowedToken.put("(","");
allowedToken.put(")","");
allowedToken.put("||","");
allowedToken.put("&&","");
allowedToken.put("!","");
allowedToken.put("!(","");
allowedToken.put(")!","");
allowedToken.put("(!)","");
allowedToken.put("true","");
allowedToken.put("false","");
allowedToken.put("(true","");
allowedToken.put("(false","");
allowedToken.put("(true)","");
allowedToken.put("(false)","");
allowedToken.put("true)","");
allowedToken.put("false)","");
try {
String normalizedBoolExpr = "";
StringTokenizer t = new StringTokenizer(boolExp," ");
while (t.hasMoreTokens()){
String s = t.nextToken();
if (allowedToken.get(s) != null) {
normalizedBoolExpr = normalizedBoolExpr + " " + s;
}else {
normalizedBoolExpr = normalizedBoolExpr + " false ";
}
}
if (normalizedBoolExpr.length() == 0) {
return true;
}else {
boolExpr = SOSBooleanExpression.readLeftToRight(normalizedBoolExpr);
return boolExpr.booleanValue();
}
} catch (SOSMalformedBooleanException e) {
System.out.println("--->"+boolExp);
e.printStackTrace();
return false;
}
}
public String trueFalse(boolean b) {
if (b) {
return " true ";
}else {
return " false ";
}
}
}