com.github.sparkfy.network.protocol.StreamChunkId.java Source code

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Here is the source code for com.github.sparkfy.network.protocol.StreamChunkId.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.github.sparkfy.network.protocol;

import com.google.common.base.Objects;
import io.netty.buffer.ByteBuf;

/**
* Encapsulates a request for a particular chunk of a stream.
*/
public final class StreamChunkId implements Encodable {
    public final long streamId;
    public final int chunkIndex;

    public StreamChunkId(long streamId, int chunkIndex) {
        this.streamId = streamId;
        this.chunkIndex = chunkIndex;
    }

    @Override
    public int encodedLength() {
        return 8 + 4;
    }

    public void encode(ByteBuf buffer) {
        buffer.writeLong(streamId);
        buffer.writeInt(chunkIndex);
    }

    public static StreamChunkId decode(ByteBuf buffer) {
        assert buffer.readableBytes() >= 8 + 4;
        long streamId = buffer.readLong();
        int chunkIndex = buffer.readInt();
        return new StreamChunkId(streamId, chunkIndex);
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(streamId, chunkIndex);
    }

    @Override
    public boolean equals(Object other) {
        if (other instanceof StreamChunkId) {
            StreamChunkId o = (StreamChunkId) other;
            return streamId == o.streamId && chunkIndex == o.chunkIndex;
        }
        return false;
    }

    @Override
    public String toString() {
        return Objects.toStringHelper(this).add("streamId", streamId).add("chunkIndex", chunkIndex).toString();
    }
}