io.questdb.std.str.AbstractCharSequence Maven / Gradle / Ivy

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 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2020 QuestDB
 *
 *  Licensed 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,
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package io.questdb.std.str;

import io.questdb.std.Chars;
import io.questdb.std.Misc;
import org.jetbrains.annotations.NotNull;

public abstract class AbstractCharSequence implements CharSequence, CloneableMutable {

    public static String getString(CharSequence cs) {
        final CharSink b = Misc.getThreadLocalBuilder();
        b.put(cs);
        return b.toString();
    }

    @Override
    @SuppressWarnings("unchecked")
    public  T copy() {
        return (T) AbstractCharSequence.getString(this);
    }

    @Override
    public int hashCode() {
        return Chars.hashCode(this);
    }

    @Override
    public boolean equals(Object obj) {
        return this == obj || obj instanceof CharSequence && Chars.equals(this, (CharSequence) obj);
    }

    @NotNull
    @Override
    public String toString() {
        return getString(this);
    }

    @Override
    public CharSequence subSequence(int start, int end) {
        throw new UnsupportedOperationException();
    }
}