com.bigdata.ha.msg.HALogRootBlocksResponse Maven / Gradle / Ivy

Go to download
/**

Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016.  All rights reserved.

Contact:
     SYSTAP, LLC DBA Blazegraph
     2501 Calvert ST NW #106
     Washington, DC 20008
     [email protected]

This program 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; version 2 of the License.

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 com.bigdata.ha.msg;

import java.nio.ByteBuffer;

import com.bigdata.io.ChecksumUtility;
import com.bigdata.journal.IRootBlockView;
import com.bigdata.journal.RootBlockView;
import com.bigdata.util.BytesUtil;

public class HALogRootBlocksResponse implements IHALogRootBlocksResponse {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    final private boolean openIsRootBlock0;
    final private boolean closeIsRootBlock0;

    final private byte[] openData;
    final private byte[] closeData;

    public HALogRootBlocksResponse(final IRootBlockView openRootBlock,
            final IRootBlockView closeRootBlock) {

        if (openRootBlock == null)
            throw new IllegalArgumentException();

        if (closeRootBlock == null)
            throw new IllegalArgumentException();

        this.openIsRootBlock0 = openRootBlock.isRootBlock0();

        this.closeIsRootBlock0 = closeRootBlock.isRootBlock0();

        this.openData = BytesUtil.toArray(openRootBlock.asReadOnlyBuffer());

        this.closeData = BytesUtil.toArray(closeRootBlock.asReadOnlyBuffer());

    }

    @Override
    public IRootBlockView getOpenRootBlock() {

        return new RootBlockView(openIsRootBlock0, ByteBuffer.wrap(openData),
                new ChecksumUtility());

    }
    
    @Override
    public IRootBlockView getCloseRootBlock() {

        return new RootBlockView(closeIsRootBlock0, ByteBuffer.wrap(closeData),
                new ChecksumUtility());

    }

    public String toString() {

        return getClass() + "{openRootBlock=" + getOpenRootBlock()
                + ", closeRootBlock=" + getCloseRootBlock() + "}";

    }

}