org.dcache.xrootd.tpc.protocol.messages.OutboundReadRequest.java Source code

Introduction

Here is the source code for org.dcache.xrootd.tpc.protocol.messages.OutboundReadRequest.java

Source

/**
 * Copyright (C) 2011-2019 dCache.org <support@dcache.org>
 *
 * This file is part of xrootd4j.
 *
 * xrootd4j is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * xrootd4j 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with xrootd4j.  If not, see http://www.gnu.org/licenses/.
 */
package org.dcache.xrootd.tpc.protocol.messages;

import io.netty.buffer.ByteBuf;

import static org.dcache.xrootd.protocol.XrootdProtocol.kXR_read;

/**
 * <p>Third-party client request to read <code>rlen</code> bytes of
 *      the source file from the source server.</p>
 */
public class OutboundReadRequest extends AbstractXrootdOutboundRequest {
    private final int fhandle;
    private final long offset;
    private final int rlen;

    public OutboundReadRequest(int streamId, int fhandle, long offset, int rlen) {
        super(streamId, kXR_read);
        this.fhandle = fhandle;
        this.offset = offset;
        this.rlen = rlen;
    }

    @Override
    protected void getParams(ByteBuf buffer) {
        buffer.writeInt(fhandle);
        buffer.writeLong(offset);
        buffer.writeInt(rlen);
        buffer.writeInt(0);
    }

    @Override
    protected int getParamsLen() {
        return 16;
    }
}