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package org.apache.lucene.search.spans;
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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import org.apache.lucene.util.ToStringUtils;
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import java.io.IOException;
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import java.util.Arrays;
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import java.util.Collection;
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* Only return those matches that have a specific payload at
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public class SpanNearPayloadCheckQuery extends SpanPositionCheckQuery {
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protected final Collection<byte[]> payloadToMatch;
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* @param match The underlying {@link SpanQuery} to check
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* @param payloadToMatch The {@link java.util.Collection} of payloads to match
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public SpanNearPayloadCheckQuery(SpanNearQuery match, Collection<byte[]> payloadToMatch) {
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this.payloadToMatch = payloadToMatch;
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protected AcceptStatus acceptPosition(Spans spans) throws IOException {
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boolean result = spans.isPayloadAvailable();
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Collection<byte[]> candidate = spans.getPayload();
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if (candidate.size() == payloadToMatch.size()) {
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//TODO: check the byte arrays are the same
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//hmm, can't rely on order here
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for (byte[] candBytes : candidate) {
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//Unfortunately, we can't rely on order, so we need to compare all
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for (byte[] payBytes : payloadToMatch) {
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if (Arrays.equals(candBytes, payBytes) == true) {
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if (matches == payloadToMatch.size()){
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//we've verified all the bytes
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return AcceptStatus.YES;
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return AcceptStatus.NO;
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return AcceptStatus.NO;
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return AcceptStatus.NO;
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public String toString(String field) {
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StringBuilder buffer = new StringBuilder();
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buffer.append("spanPayCheck(");
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buffer.append(match.toString(field));
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buffer.append(", payloadRef: ");
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for (byte[] bytes : payloadToMatch) {
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ToStringUtils.byteArray(buffer, bytes);
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buffer.append(ToStringUtils.boost(getBoost()));
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return buffer.toString();
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public Object clone() {
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SpanNearPayloadCheckQuery result = new SpanNearPayloadCheckQuery((SpanNearQuery) match.clone(), payloadToMatch);
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result.setBoost(getBoost());
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public boolean equals(Object o) {
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if (this == o) return true;
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if (!(o instanceof SpanNearPayloadCheckQuery)) return false;
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SpanNearPayloadCheckQuery other = (SpanNearPayloadCheckQuery) o;
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return this.payloadToMatch.equals(other.payloadToMatch)
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&& this.match.equals(other.match)
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&& this.getBoost() == other.getBoost();
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public int hashCode() {
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int h = match.hashCode();
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h ^= (h << 8) | (h >>> 25); // reversible
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//TODO: is this right?
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h ^= payloadToMatch.hashCode();
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h ^= Float.floatToRawIntBits(getBoost());
b'\\ No newline at end of file'