+++ /dev/null
-package org.apache.lucene.search.spans;
-/**
- * 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.
- */
-
-import org.apache.lucene.util.ToStringUtils;
-
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.Collection;
-
-
-/**
- * Only return those matches that have a specific payload at
- * the given position.
- * <p/>
- *
- */
-public class SpanNearPayloadCheckQuery extends SpanPositionCheckQuery {
- protected final Collection<byte[]> payloadToMatch;
-
- /**
- * @param match The underlying {@link SpanQuery} to check
- * @param payloadToMatch The {@link java.util.Collection} of payloads to match
- */
- public SpanNearPayloadCheckQuery(SpanNearQuery match, Collection<byte[]> payloadToMatch) {
- super(match);
- this.payloadToMatch = payloadToMatch;
- }
-
- @Override
- protected AcceptStatus acceptPosition(Spans spans) throws IOException {
- boolean result = spans.isPayloadAvailable();
- if (result == true) {
- Collection<byte[]> candidate = spans.getPayload();
- if (candidate.size() == payloadToMatch.size()) {
- //TODO: check the byte arrays are the same
- //hmm, can't rely on order here
- int matches = 0;
- for (byte[] candBytes : candidate) {
- //Unfortunately, we can't rely on order, so we need to compare all
- for (byte[] payBytes : payloadToMatch) {
- if (Arrays.equals(candBytes, payBytes) == true) {
- matches++;
- break;
- }
- }
- }
- if (matches == payloadToMatch.size()){
- //we've verified all the bytes
- return AcceptStatus.YES;
- } else {
- return AcceptStatus.NO;
- }
- } else {
- return AcceptStatus.NO;
- }
- }
- return AcceptStatus.NO;
- }
-
- @Override
- public String toString(String field) {
- StringBuilder buffer = new StringBuilder();
- buffer.append("spanPayCheck(");
- buffer.append(match.toString(field));
- buffer.append(", payloadRef: ");
- for (byte[] bytes : payloadToMatch) {
- ToStringUtils.byteArray(buffer, bytes);
- buffer.append(';');
- }
- buffer.append(")");
- buffer.append(ToStringUtils.boost(getBoost()));
- return buffer.toString();
- }
-
- @Override
- public Object clone() {
- SpanNearPayloadCheckQuery result = new SpanNearPayloadCheckQuery((SpanNearQuery) match.clone(), payloadToMatch);
- result.setBoost(getBoost());
- return result;
- }
-
- @Override
- public boolean equals(Object o) {
- if (this == o) return true;
- if (!(o instanceof SpanNearPayloadCheckQuery)) return false;
-
- SpanNearPayloadCheckQuery other = (SpanNearPayloadCheckQuery) o;
- return this.payloadToMatch.equals(other.payloadToMatch)
- && this.match.equals(other.match)
- && this.getBoost() == other.getBoost();
- }
-
- @Override
- public int hashCode() {
- int h = match.hashCode();
- h ^= (h << 8) | (h >>> 25); // reversible
- //TODO: is this right?
- h ^= payloadToMatch.hashCode();
- h ^= Float.floatToRawIntBits(getBoost());
- return h;
- }
-}
\ No newline at end of file