/*
* 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.nifi.attribute.expression.language.evaluation.selection;
import java.util.Map;
import org.apache.nifi.attribute.expression.language.evaluation.BooleanEvaluator;
import org.apache.nifi.attribute.expression.language.evaluation.BooleanQueryResult;
import org.apache.nifi.attribute.expression.language.evaluation.Evaluator;
import org.apache.nifi.attribute.expression.language.evaluation.QueryResult;
public class AllAttributesEvaluator extends BooleanEvaluator implements IteratingEvaluator<Boolean> {
private final BooleanEvaluator booleanEvaluator;
private final MultiAttributeEvaluator multiAttributeEvaluator;
public AllAttributesEvaluator(final BooleanEvaluator booleanEvaluator, final MultiAttributeEvaluator multiAttributeEvaluator) {
this.booleanEvaluator = booleanEvaluator;
this.multiAttributeEvaluator = multiAttributeEvaluator;
}
@Override
public QueryResult<Boolean> evaluate(final Map<String, String> attributes) {
QueryResult<Boolean> attributeValueQuery = booleanEvaluator.evaluate(attributes);
Boolean result = attributeValueQuery.getValue();
if (result == null) {
return new BooleanQueryResult(false);
}
if (!result) {
return new BooleanQueryResult(false);
}
while (multiAttributeEvaluator.getEvaluationsRemaining() > 0) {
attributeValueQuery = booleanEvaluator.evaluate(attributes);
result = attributeValueQuery.getValue();
if (result != null && !result) {
return attributeValueQuery;
}
}
return new BooleanQueryResult(true);
}
@Override
public int getEvaluationsRemaining() {
return 0;
}
@Override
public Evaluator<?> getSubjectEvaluator() {
return null;
}
@Override
public Evaluator<?> getLogicEvaluator() {
return booleanEvaluator;
}
}