com.eightkdata.mongowp.bson.netty.pool.ShortStringPoolPolicy Maven / Gradle / Ivy

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/*
 * This file is part of MongoWP.
 *
 * MongoWP is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MongoWP is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with bson-netty. If not, see .
 *
 * Copyright (C) 2016 8Kdata.
 * 
 */

package com.eightkdata.mongowp.bson.netty.pool;

import io.netty.buffer.ByteBuf;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import javax.inject.Inject;
import javax.inject.Qualifier;

import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.*;

/**
 *
 */
public class ShortStringPoolPolicy extends StringPoolPolicy {

    final int sizeLimit;

    @Inject
    public ShortStringPoolPolicy(@SizeLimit int sizeLimit) {
        this.sizeLimit = sizeLimit;
    }

    @Override
    public boolean apply(boolean likelyCacheable, ByteBuf input) {
        return isShort(input);
    }

    protected final boolean isShort(ByteBuf input) {
        return input.readableBytes() < sizeLimit;
    }

    @Override
    public String toString() {
        return "size < " + sizeLimit;
    }

    @Qualifier @Target({ FIELD, PARAMETER, METHOD }) @Retention(RUNTIME)
    public static @interface SizeLimit {}
}