hugegraph-struct/src/test/resources/compatibility/2f827d6e8/LegacyServerIndexQueryProbe.java.txt

/*
 * 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 java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.util.Collections;
import org.apache.hugegraph.backend.id.IdGenerator;
import org.apache.hugegraph.backend.query.ConditionQuery;
import org.apache.hugegraph.backend.query.IdPrefixQuery;
import org.apache.hugegraph.backend.serializer.BinarySerializer;
import org.apache.hugegraph.type.HugeType;
import org.apache.hugegraph.type.define.HugeKeys;

public class LegacyServerIndexQueryProbe {
    public static void main(String[] args) throws Exception {
        String input = "long-field-".repeat(20);
        String value = ConditionQuery.concatValues(Collections.singletonList(input));
        ConditionQuery query = new ConditionQuery(HugeType.SECONDARY_INDEX);
        query.eq(HugeKeys.INDEX_LABEL_ID, IdGenerator.of(15L));
        query.eq(HugeKeys.FIELD_VALUES, value);
        IdPrefixQuery encoded = (IdPrefixQuery) new BinarySerializer().writeQuery(query);
        String text = "server.query.field.length=" + value.length() + "\n" +
                      "server.query.prefix=" + hex(encoded.prefix().asBytes()) + "\n";
        Files.writeString(Path.of(args[0]).resolve("index-builder-contract.properties"), text,
                          StandardCharsets.UTF_8, StandardOpenOption.APPEND);
        System.out.println("Original Server query: field " + value.length() +
                           " -> prefix " + hex(encoded.prefix().asBytes()));
    }
    private static String hex(byte[] bytes) {
        StringBuilder text = new StringBuilder();
        for (byte value : bytes) { text.append(String.format("%02x", value & 0xff)); }
        return text.toString();
    }
}