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/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016.  All rights reserved.

Contact:
     SYSTAP, LLC DBA Blazegraph
     2501 Calvert ST NW #106
     Washington, DC 20008
     [email protected]

This program 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; version 2 of the License.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
package com.bigdata.blueprints;

import com.tinkerpop.blueprints.Compare;
import com.tinkerpop.blueprints.Contains;
import com.tinkerpop.blueprints.Predicate;

public enum BigdataPredicate implements Predicate {

    EQ,
    
    NE,
    
    GT,
    
    GTE,
    
    LT,
    
    LTE,
    
    IN,
    
    NIN;

    @Override
    public boolean evaluate(Object arg0, Object arg1) {
        throw new RuntimeException();
    }
    
    @SuppressWarnings("deprecation")
    public static BigdataPredicate toBigdataPredicate(final Predicate p) {
        
        if (p instanceof BigdataPredicate) {
            return (BigdataPredicate) p;
        }
        
        if (p instanceof Compare) {
            final Compare c = (Compare) p;
            switch(c) {
            case EQUAL: 
                return BigdataPredicate.EQ;
            case NOT_EQUAL: 
                return BigdataPredicate.NE;
            case GREATER_THAN: 
                return BigdataPredicate.GT;
            case GREATER_THAN_EQUAL: 
                return BigdataPredicate.GTE;
            case LESS_THAN: 
                return BigdataPredicate.LT;
            case LESS_THAN_EQUAL: 
                return BigdataPredicate.LTE;
            }
        } else if (p instanceof Contains) {
            final Contains c = (Contains) p;
            switch(c) {
            case IN: 
                return BigdataPredicate.IN;
            case NOT_IN: 
                return BigdataPredicate.NIN;
            }
        } else if (p instanceof com.tinkerpop.blueprints.Query.Compare) {
            final com.tinkerpop.blueprints.Query.Compare c = 
                    (com.tinkerpop.blueprints.Query.Compare) p;
            switch(c) {
            case EQUAL: 
                return BigdataPredicate.EQ;
            case NOT_EQUAL: 
                return BigdataPredicate.NE;
            case GREATER_THAN: 
                return BigdataPredicate.GT;
            case GREATER_THAN_EQUAL: 
                return BigdataPredicate.GTE;
            case LESS_THAN: 
                return BigdataPredicate.LT;
            case LESS_THAN_EQUAL: 
                return BigdataPredicate.LTE;
            }
        }
        
        throw new IllegalArgumentException();
        
    }
    
}