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/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

package org.elasticsearch.common.lucene;

import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.BytesRefBuilder;

public class BytesRefs {

    /**
     * Converts a value to a string, taking special care if its a {@link BytesRef} to call
     * {@link org.apache.lucene.util.BytesRef#utf8ToString()}.
     */
    public static String toString(Object value) {
        if (value == null) {
            return null;
        }
        if (value instanceof BytesRef) {
            return ((BytesRef) value).utf8ToString();
        }
        return value.toString();
    }

    /**
     * Converts an object value to BytesRef.
     */
    public static BytesRef toBytesRef(Object value) {
        if (value == null) {
            return null;
        }
        if (value instanceof BytesRef) {
            return (BytesRef) value;
        }
        return new BytesRef(value.toString());
    }

    public static BytesRef toBytesRef(Object value, BytesRefBuilder spare) {
        if (value == null) {
            return null;
        }
        if (value instanceof BytesRef) {
            return (BytesRef) value;
        }
        spare.copyChars(value.toString());
        return spare.get();
    }
}