com.spotify.heroic.suggest.MatchOptions.java Source code

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Here is the source code for com.spotify.heroic.suggest.MatchOptions.java

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/*
 * Copyright (c) 2015 Spotify AB.
 *
 * 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 com.spotify.heroic.suggest;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Optional;
import lombok.Data;

@Data
public class MatchOptions {
    public static final boolean DEFAULT_FUZZY = false;
    public static final int DEFAULT_FUZZY_PREFIX_LENGTH = 2;
    public static final int DEFAULT_FUZZY_MAX_EXPANSIONS = 20;
    public static final boolean DEFAULT_TOKENIZE = false;

    private final boolean fuzzy;
    private final int fuzzyPrefixLength;
    private final int fuzzyMaxExpansions;
    private final boolean tokenize;

    @JsonCreator
    public MatchOptions(@JsonProperty("fuzzy") boolean fuzzy,
            @JsonProperty("fuzzyPrefixLength") Integer fuzzyPrefixLength,
            @JsonProperty("fuzzyMaxExpansions") Integer fuzzyMaxExpansions,
            @JsonProperty("tokenize") boolean tokenize) {
        this.fuzzy = Optional.fromNullable(fuzzy).or(DEFAULT_FUZZY);
        this.fuzzyPrefixLength = Optional.fromNullable(fuzzyPrefixLength).or(DEFAULT_FUZZY_PREFIX_LENGTH);
        this.fuzzyMaxExpansions = Optional.fromNullable(fuzzyMaxExpansions).or(DEFAULT_FUZZY_MAX_EXPANSIONS);
        this.tokenize = Optional.fromNullable(tokenize).or(DEFAULT_TOKENIZE);
    }

    public static Builder builder() {
        return new Builder();
    }

    public static class Builder {
        private boolean fuzzy = DEFAULT_FUZZY;
        private int fuzzyPrefixLength = DEFAULT_FUZZY_PREFIX_LENGTH;
        private int fuzzyMaxExpansions = DEFAULT_FUZZY_MAX_EXPANSIONS;
        private boolean tokenize = DEFAULT_TOKENIZE;

        public Builder fuzzy(boolean fuzzy) {
            this.fuzzy = fuzzy;
            return this;
        }

        public Builder fuzzyPrefixLength(int fuzzyPrefixLength) {
            this.fuzzyPrefixLength = fuzzyPrefixLength;
            return this;
        }

        public Builder fuzzyMaxExpansions(int fuzzyMaxExpansions) {
            this.fuzzyMaxExpansions = fuzzyMaxExpansions;
            return this;
        }

        public Builder tokenize(boolean tokenize) {
            this.tokenize = tokenize;
            return this;
        }

        public MatchOptions build() {
            return new MatchOptions(fuzzy, fuzzyPrefixLength, fuzzyMaxExpansions, tokenize);
        }
    }
}