com.lambdaworks.redis.output.ScanOutput Maven / Gradle / Ivy

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/*
 * Copyright 2011-2016 the original author or authors.
 *
 * 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,
 * 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.lambdaworks.redis.output;

import java.nio.ByteBuffer;

import com.lambdaworks.redis.LettuceStrings;
import com.lambdaworks.redis.ScanCursor;
import com.lambdaworks.redis.codec.RedisCodec;

/**
 * Cursor handling output.
 * 
 * @param  Key type.
 * @param  Value type.
 * @param  Cursor type.
 * @author Mark Paluch
 */
public abstract class ScanOutput extends CommandOutput {

    public ScanOutput(RedisCodec codec, T cursor) {
        super(codec, cursor);
    }

    @Override
    public void set(ByteBuffer bytes) {

        if (output.getCursor() == null) {
            output.setCursor(decodeAscii(bytes));
            if (LettuceStrings.isNotEmpty(output.getCursor()) && "0".equals(output.getCursor())) {
                output.setFinished(true);
            }
            return;
        }

        setOutput(bytes);

    }

    protected abstract void setOutput(ByteBuffer bytes);
}