se.sics.nstream.storage.cache.KHintSummarySerializer.java Source code

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Here is the source code for se.sics.nstream.storage.cache.KHintSummarySerializer.java

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/*
 * Copyright (C) 2009 Swedish Institute of Computer Science (SICS) Copyright (C)
 * 2009 Royal Institute of Technology (KTH)
 *
 * GVoD is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package se.sics.nstream.storage.cache;

import com.google.common.base.Optional;
import io.netty.buffer.ByteBuf;
import java.util.Set;
import java.util.TreeSet;
import se.sics.kompics.network.netty.serialization.Serializer;

/**
 * @author Alex Ormenisan <aaor@kth.se>
 */
public class KHintSummarySerializer implements Serializer {

    private final int id;

    public KHintSummarySerializer(int id) {
        this.id = id;
    }

    @Override
    public int identifier() {
        return id;
    }

    @Override
    public void toBinary(Object o, ByteBuf buf) {
        KHint.Summary obj = (KHint.Summary) o;
        buf.writeLong(obj.lStamp);
        buf.writeInt(obj.blocks.size());
        for (Integer block : obj.blocks) {
            buf.writeInt(block);
        }
    }

    @Override
    public Object fromBinary(ByteBuf buf, Optional<Object> hint) {
        long lStamp = buf.readLong();
        int nrBlocks = buf.readInt();
        Set<Integer> blocks = new TreeSet<>();
        for (int j = 0; j < nrBlocks; j++) {
            blocks.add(buf.readInt());
        }
        return new KHint.Summary(lStamp, blocks);
    }

}