BasicTokenizerValidator.java

// Licensed to the Apache Software Foundation (ASF) under one
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// 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
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package org.apache.doris.indexpolicy;

import org.apache.doris.common.DdlException;

import com.google.common.collect.ImmutableSet;

import java.util.Map;
import java.util.Set;

public class BasicTokenizerValidator extends BasePolicyValidator {
    private static final Set<String> ALLOWED_PROPS = ImmutableSet.of("type", "mode");

    public BasicTokenizerValidator() {
        super(ALLOWED_PROPS);
    }

    @Override
    protected String getTypeName() {
        return "basic tokenizer";
    }

    @Override
    protected void validateSpecific(Map<String, String> props) throws DdlException {
        if (props.containsKey("mode")) {
            try {
                int mode = Integer.parseInt(props.get("mode"));
                if (mode < 1 || mode > 2) {
                    throw new DdlException("Invalid mode for basic tokenizer: " + mode
                            + ". Mode must be 1 (L1: English + numbers + Chinese) "
                            + "or 2 (L2: L1 + all Unicode characters)");
                }
            } catch (NumberFormatException e) {
                throw new DdlException("mode must be a positive integer (1 or 2)");
            }
        }
    }
}