/* | |
* Licensed to the Apache Software Foundation (ASF) under one | |
* or more contributor license agreements. See the NOTICE file | |
* distributed with this work for additional information | |
* regarding copyright ownership. The ASF licenses this file | |
* to you under the Apache License, Version 2.0 (the | |
* "License"); you may not use this file except in compliance | |
* with the License. You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, | |
* software distributed under the License is distributed on an | |
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
* KIND, either express or implied. See the License for the | |
* specific language governing permissions and limitations | |
* under the License. | |
*/ | |
package org.apache.uima.ruta.expression.bool; | |
import org.apache.uima.ruta.RutaStream; | |
import org.apache.uima.ruta.expression.number.INumberExpression; | |
import org.apache.uima.ruta.rule.MatchContext; | |
public class BooleanNumberExpression extends AbstractBooleanExpression { | |
private final INumberExpression e1; | |
private final String op; | |
private final INumberExpression e2; | |
public BooleanNumberExpression(INumberExpression e1, String op, INumberExpression e2) { | |
super(); | |
this.e1 = e1; | |
this.op = op; | |
this.e2 = e2; | |
} | |
@Override | |
public boolean getBooleanValue(MatchContext context, RutaStream stream) { | |
double doubleValue1 = getFristExpression().getDoubleValue(context, stream); | |
double doubleValue2 = getSecondExpression().getDoubleValue(context, stream); | |
return eval(doubleValue1, getOperator(), doubleValue2); | |
} | |
private boolean eval(double t1, String op, double t2) { | |
if ("==".equals(op)) { | |
return t1 == t2; | |
} else if ("!=".equals(op)) { | |
return t1 != t2; | |
} else if ("<".equals(op)) { | |
return t1 < t2; | |
} else if ("<=".equals(op)) { | |
return t1 <= t2; | |
} else if (">".equals(op)) { | |
return t1 > t2; | |
} else if (">=".equals(op)) { | |
return t1 >= t2; | |
} | |
return false; | |
} | |
public INumberExpression getFristExpression() { | |
return e1; | |
} | |
public String getOperator() { | |
return op; | |
} | |
public INumberExpression getSecondExpression() { | |
return e2; | |
} | |
@Override | |
public String getStringValue(MatchContext context, RutaStream stream) { | |
return e1.getStringValue(context, stream) + " " + op + " " + e2.getStringValue(context, stream); | |
} | |
} |