io.datty.api.ByteBufValue.java Source code

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Here is the source code for io.datty.api.ByteBufValue.java

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/*
 * Copyright (C) 2016 Datty.io 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 io.datty.api;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;

/**
 * ByteBufValue
 * 
 * Simple implementation of DattyValue with single ByteBuf value
 * 
 * @author Alex Shvid
 *
 */

public class ByteBufValue implements DattyValue {

    private final ByteBuf value;

    public ByteBufValue(ByteBuf value) {
        if (value == null) {
            throw new IllegalArgumentException("null value");
        }
        this.value = value;
    }

    @Override
    public boolean isNull() {
        return false;
    }

    @Override
    public boolean hasByteBuf() {
        return true;
    }

    @Override
    public ByteBuf asByteBuf() {
        return value;
    }

    @Override
    public DattyValue retain() {
        ByteBuf o = value.retain();
        return o == value ? this : new ByteBufValue(o);
    }

    @Override
    public void release() {
        value.release();
    }

    @Override
    public ByteBuf write(ByteBuf sink) {
        return sink.writeBytes(value, value.readerIndex(), value.readableBytes());
    }

    @Override
    public byte[] toByteArray() {
        return ByteBufUtil.getBytes(value);
    }

}