/*
* 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.hl7.query.result;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.nifi.hl7.query.QueryResult;
import org.apache.nifi.hl7.query.ResultHit;
import org.apache.nifi.hl7.query.Selection;
public class StandardQueryResult implements QueryResult {
private final List<Selection> selections;
private final Set<Map<String, Object>> hits;
private final Iterator<Map<String, Object>> hitIterator;
public StandardQueryResult(final List<Selection> selections, final Set<Map<String, Object>> hits) {
this.selections = selections;
this.hits = hits;
hitIterator = hits.iterator();
}
@Override
public boolean isMatch() {
return !hits.isEmpty();
}
@Override
public List<String> getLabels() {
final List<String> labels = new ArrayList<>();
for (final Selection selection : selections) {
labels.add(selection.getName());
}
return labels;
}
@Override
public int getHitCount() {
return hits.size();
}
@Override
public ResultHit nextHit() {
if (hitIterator.hasNext()) {
return new StandardResultHit(hitIterator.next());
} else {
return null;
}
}
}